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发表于 2008-03-30 15:30 |显示全部

一、前言
随着我国铁路建设的快速发展，箱梁预制生产技术有了很大提高，大跨度、大体积是重点发展之一，另外，设计年限有了很大提高，从60年使用寿命跃升至100年设计使用寿命，混凝土耐久性成为重点。采用高性能混凝土技术是解决客运专线预应力混凝土箱梁结构耐久设计的重要内容。高性能混凝土技术应用试验是客运专线预应力混凝土箱梁试制、试验的关键技术内容之一，是实现结构耐久性设计思想重要组成部分。这就给我们试验工作者提出了严峻考验。如何实现混凝土的耐久性成为混凝土配合比的设计关键。武广客运专线施工中，中铁十九局韶关制梁厂承担218片32m预制混凝土箱梁施工生产任务，该预制混凝土箱梁为武广客运专线设计时速350公里的32m预制后张法施工双线铁路箱梁，科技含量高，施工难度大，箱梁架设工期紧，C50高性能混凝土配合比设计为施工关键点，施工前我们试验人员进行了大量的试验技术储备工作。
二、混凝土配制原则
（一）设计依据
客运专线箱梁C50预应混凝土的配制依据主要是《客运专线高性能混凝土暂行技术条件》、《客运专线预应混凝土预制梁暂行技术条件》以及试验梁拟采用的主要生产工艺，其技术要求具体体现为：
1 水泥、粉煤灰、矿渣粉、砂、石、外加剂和水等原材料的品质要求。
2 混凝土胶凝材料用量、矿物掺合料掺量、水胶比、碱含量、氯离子含量以及容重等配合比参数的限值要求。
3 混凝土拌合物的性能要求。主要包括体现箱梁制造工艺要求的混凝土坍落度及其经时损失，混凝土的黏聚性和保水性；体现混凝土抗冻要求的含气量；泌水性等。
4 混凝土力学性能要求。主要为C50混凝土在不同龄期的立方体抗和静力抗压弹性模量要求。
5 混凝土的抗裂性要求。应进行混凝土的抗裂性对比试验。
（二）混凝土配制原则
    根据《客运专线高性能混凝土暂行技术条件》、《客运专线预应力混凝土暂行技术条件》、原材料品质以及试验梁拟采用的主要工艺，C50预应力混凝土的配制应体现以下主要原则：
1 进行原材料的比选复试，确定品质性能符合《客运专线高性能混凝土暂行技术条件》要求的水泥、粉煤灰、矿渣粉、砂、石、外加剂和水用于C50预应力混凝土的试配。

2 混凝土的配合比参数
胶凝材料用量：胶凝材料总量不宜超过500㎏/m3，其最低用量按最不利环境作用等级（H4或L3或D4）设计考虑应不少于360㎏/m3，实际控制值为460～490㎏/m3为宜。
    矿物掺合料掺量：采用单掺粉煤灰技术或采用矿渣粉与粉煤灰复掺技术时，粉煤灰的掺量均不宜大于30%
水胶比：按最不利环境作用等级（H4或L3或D4）设计考虑时应不大于0.36。
碱含量：采用非碱活性骨料（砂、石）时，混凝土的总碱含量没有要求；采用砂浆棒膨胀率在0.10～0.20%的碱—硅酸反应活性骨料时，由水泥、矿物掺合料、外加剂和水带入混凝土的碱含量之和应不大3.0㎏/m3；采用砂浆棒膨胀率在0.20～0.30%的碱—硅酸反应活性骨料时，由水泥、矿物掺料、外加剂和水带入混凝土的碱含量之和应不大于3.0㎏/m3，且应在混凝土中掺加具有明显抑制效能的矿物掺合料和外加剂；不得采用砂浆棒膨胀率在0.30%以上的碱—硅酸反应活性骨料。
氯离子含量：由水泥、矿物掺合料、砂、石、外加剂和水带入混凝土的氯离子总量应不超过胶凝材料总量的0.06%。
容重：混凝土的容重应控制地2400～2500㎏/m3。
3 混凝土的拌合物性能
由于采用在预制场内泵车入模浇灌的生产工艺，混凝土的坍落度在入模时要求不得小于120㎜，一般按入模坍落度150-180㎜进行控制为宜。考虑混凝土经时损失、泵压损失、温度损失，因此混凝土的出机温度一般仍按180-200㎜进行控制，30min静置坍落度损失控制一般不超过60㎜，最大不超过80㎜。
含气量：根据《客运专线预应力混凝土预制梁暂行技术条件》的要求，混凝土应具有F200的抗冻性，因此混凝土应引入微气泡，新拌混凝土的含气量宜控制为2～4%，具体的控制值应根据硬化混凝土的抗冻性试验结果进行确定。
泌水率；混凝土入模后不得泌水。在配合比试配过程中可按30min的工序间隔进行控制，即将混凝土静置30min后复搅拌测试其泌水率。
4 混凝土的力学性能
立方体抗压强度：实体箱梁28d龄期混凝土的强度不小于50MPa，在配合比设计时，混凝土的28d龄期配制强度应控制不小于58.2MPa。
    静力抗压弹性模量：实体箱梁28d龄期混凝土的弹性模量应不小于35GPa，在配合比设计时，混凝土的28d龄期弹性模量应与强度相适宜。

5 混凝土的抗裂性
对混凝土拌合物性能满足要求的试拌配合比进行抗裂性对比试验，选择抗裂性相对较好的混凝土配合比进行耐久性试验。
6 混凝土的耐久性能
电通量：混凝土的56d龄期电通量应不大于1000库仑。
抗冻性：混凝土的56d龄期抗冻性应不小于F200。
抗掺性：混凝土的抗渗性应不小P20。
抗碱—骨料反应：采用砂浆膨胀率在0.20～0.30%的碱—硅酸反应活性骨料时，矿物掺合料和外加剂抑制碱—骨料反应有效性的评价应合格。
三、原材料试验及选定
   根据客运专线高性能混凝土暂行技术条件及“客运专线预应力混凝土预制梁暂行技术条件” 所有原材料均按《客运专线高性能混凝土暂行技术条件》规定的试验项目进行复检，并将原材料的性能复检结果与《客运专线高性能混凝土暂行技术条件》的要求进行了列表对比。
（一）水泥
采用广东省韶关市昌山建材水泥厂粤海牌P.O 42.5水泥。
水泥性能复检试验结果见表1。
表1

水泥性能复检试验结果

序号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	检验项目YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		技术要求YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	复检结果YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	烧失量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤5.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.25YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氧化镁含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤5.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.52YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	三氧化硫含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤3.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	细度，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤10.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	凝结时间,minYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	初凝YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥45YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	142YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		终凝YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤600YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	279YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	安定性YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		合格YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	合格YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	强度,MPaYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3d抗折YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥3.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	5.7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
		28d抗折YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥6.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	8.3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
		3d抗压YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥16YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	25.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
		28d抗压YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥42.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	48.3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	碱含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤0.80YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.24YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氯离子含量YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤0.06YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.001YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

（二）矿渣粉
矿渣粉采用广东省韶关市昌山建材有限公司S95级矿渣粉
矿渣粉性能复检结果见表2
表2

矿渣粉性能复检试验结果

序号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	检验项目YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	技术要求YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	复检结果YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	比表面积，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	350～500YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	428YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	烧失量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤3.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0．6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氧化镁含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤14YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	6．28YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	三氧化硫含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤4.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0．33YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氯离子含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤0.02YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0．001YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	含水率，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤1.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0．1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	需水量比，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤100YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	95YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	碱含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.26YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	28d活性指数YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥95YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	99YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

（三）细骨料
采用广东省韶关市小北江水洗中砂。细骨料性能复检试验结果见表3

表3

细骨料性能复检试验结果

（四）粗骨料
试验结果见表7
采用广东省韶关市龙归碎石场二级配的碎石复配成5-25mm连续级配碎石,最大公称粒径25㎜石灰岩碎石，粗骨料试验结果见下表4。根据复结果，以方案一复配结果为理想级配。
表4

碎石复配试验结果

碎石的品质及有害物复检结果见表5
表5

碎石品质及有害物复检试验结果

序号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	检验项目YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	技术要求YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	复检结果YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	压碎指标，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	坚固性，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	吸取水率，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.25YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	含泥量，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤0.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.25YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	泥块含量，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤0.25YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	针片状颗粒总含量，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3.8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	硫化物及硫酸盐含量，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤0.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.04YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氯离子含量，％YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	＜0.02YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	未检出YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	活性矿物YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	无碱活性矿物YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

（五）水 采用拌合站场区井水。
（六） 减水剂

采用上海城诚LEX-9H聚羧酸减水剂。
外加剂性能复检结果见表6
表6

掺外加剂混凝土性能复检试验结果

序号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	检验项目YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		技术要求YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	复检结果YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	减水率，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≥20YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	29YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	含气量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≥4.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	4.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	常压泌水率，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤20YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	抗压强度比，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥130YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	162YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
		7dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥12.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	150YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
		28dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≥120YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	132YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	对钢筋锈蚀作用YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		无锈蚀YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	无锈蚀YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	收缩率比,%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	112YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	相对耐久性指标,%,200次YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≥80YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	85.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水泥净浆流动度，㎜YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≥240YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	270YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	硫酸钠含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤10.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.08YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氯离子含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤0.2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.001YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	碱含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		≤10.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

（七） 粉煤灰
采用广州粉煤灰建材厂恒运牌粉煤灰。
粉煤灰性能复检结果见表7
表7

粉煤灰性能复检试验结果

序号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	检验项目YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	技术要求YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	复检结果YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	细度，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤12YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	11YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	烧失量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤3.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	含水率，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤1.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.24YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	需水量比，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤100YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	96YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	三氧化硫含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	≤3.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.61YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	碱含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.41YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	氯离子含量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.017YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

原材料复检试验结果评价：所选用的水泥、矿渣粉、砂、石及二种外加剂按规定的试验方法进行检验，其性能和品质试验结果符合《客运专线高性能混凝土暂行技术条件》的相关规定，可以用于C50预应力混凝土的配制。其中，二级配碎石的复配方案一较为适宜。
四、混凝土拌合物性能试验

在进行混凝土拌合物性能试验前，首先进行混凝土配合比设计参数的初选和混凝土总碱含量和氯离子含量的计算，在混凝土有害物质含量达到控制要求的基础上开展混凝土的试拌工作。
（一）
用混凝土配合比设计参数的初选
胶凝材料总量：根据所选用的水泥、矿物掺合料和骨料等原材料品质以及生产工艺状况，混凝土的胶凝材料总量宜控制在450～490㎏/m3之间，由于是首次试验，为安全及快速起见，本次试验采用的胶凝材料总量取为484㎏/m3,并在试验期间保持这个水平不变。
矿物掺合料掺量：粉煤灰和矿渣粉的掺量主要考虑混凝土的强度和耐久性要求进行取用。单独掺用粉煤灰时，粉煤灰的掺量取值为25%；复掺粉煤灰和矿渣煤时，其掺量可适当增加，本次试验时复掺比例控制约为30～55%，其中粉煤灰和矿渣粉的复合比例根据混凝土强度要求、拌合物状况和浆体含量时行了适当调整。
砂率：混凝土的砂率取值与石子粒径、砂子粗细以及胶体用量有关，一般应控制地34～42%之间。石子粒径越小、砂子越粗，砂率应取上限；混凝土泵送施工是时应适当提高砂率。试验时统一砂率为41%。

用水量：拌合用水量决定混凝土强度的主要因素。拌合用水的数量主要取决于水泥充分水化的要求；另一方面是混凝土和易性的要求。
外加剂用量：主要根据混凝土拌合物性能要求进行用水调整。见表8
表8

试验混凝土配合比，㎏/m3

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水泥YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	矿渣粉YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	粉煤灰YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	砂YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	石YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	LEX—9HYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	TH—2AYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-01YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	360YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	110YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	742YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1068YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3.9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	141YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
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（二） 混凝土总碱含量和氯离子含量的计算
混凝土总碱含量和氯离子含量的计算依据是原材料的复检结果和混凝土配合比初选参数。其中，矿渣粉的可溶性碱按总碱量的1/2进行折算，粉煤灰的可溶性碱量按总碱量的1/6进行折算。混凝土氯离子含量计算结果见表9。
表9

混凝土氯离子含量计算结果，㎏/m3

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	各原材料带入混凝土的氯离子含量YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©						占胶材比例YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水泥YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	矿渣粉YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	粉煤灰YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	砂/石/水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	外加剂YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	合计YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-01YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0557YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0187YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0767YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.016%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-02YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0490YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0049YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0139YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0682YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.015%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-03YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0454YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0067YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0126YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0651YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.014%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-04YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0419YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0084YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0116YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0622YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.013%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-05YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0384YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0101YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0105YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0594YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.013%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-06YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0349YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0118YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0095YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0004YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0565YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.012%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-07YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0576YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0187YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0177YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0846YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.018%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-08YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0490YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0049YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0139YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0177YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0761YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.016%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-09YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0454YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0177YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0730YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.016%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0084YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0116YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0177YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.0702YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.015%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-11YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.014%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

混凝土碱含量计算结果见表10。
表10

混凝土碱含量计算结果,
㎏/m3

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	各种原材料带入混凝土的碱含量YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©					合计YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水泥YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	矿渣粉YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	粉煤灰YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	砂/石/水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	外加剂YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	合计YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-01YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.700YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0295YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.066YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3.02YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-02YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.295YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.108YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.193YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.066YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.66YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-03YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.130YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.148YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.174YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.066YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.52YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-04YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.965YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.184YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.160YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.066YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.38YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-05YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.800YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.221YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.146YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.066YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.23YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
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X-07YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.700YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.259YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.486YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3.44YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-08YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.295YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.108YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.193YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.486YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	3.08YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
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X-10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.965YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.184YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.160YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.486YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.80YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-11YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1.800YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.221YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.146YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.486YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	2.65YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

从表10和表11的计算结果可知,初步选定的试验配合比中混凝土的氯离子含量在0.012～0.018之间,均未超过预应力混凝土0.06%的规定限值。由于所选用的骨料为非活性骨料，因此对混凝土的总碱含量没有要求，经计算，所选择的试验配合比中混凝土碱含量在2.09～3.44㎏/m3之间，且混凝土的总碱含量与掺合料掺量呈反比关系。因此，从混凝土的氯离子含量计算结果可以判定，所选定的试验配合比混凝土有害物质含量符合要求，均可进行拌合性能试验。
（三） 混凝土拌合物性能试验在标准试验条件下时行。原材料均在试验前24h放入工作室，控制工作室温度为20℃，湿度大于50%。
混凝土采用60L强制式搅拌机拌合。基本投料顺序为：粉料预混30s，然后投入预先搅拌均匀的液态原材料，继续搅拌150s。
混凝土拌合物性能试验结果见表12，其中初始坍落度和含气量在混凝土出机后30min内测试，30min坍落度和泌水率在混凝土出机静置30min后经
表11

混凝土拌合物性能试验结果

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	坍落度，㎜YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		30min坍损，㎜YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	含气量，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	泌水率，%YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	湿容重YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© ㎏/m3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	初始YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	30minYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
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由于粉煤灰和矿渣粉的需水量比均接近100%，因此在保持用水量不变的情况下，改变粉煤灰和矿渣粉的掺量对坍落度的影响较小，所以选择的11个试验配合比的混凝土初始坍落度均在200～220㎜之间，混凝土的30 min坍落度损失最小值为20㎜，最大值为50㎜，均未超过预期的控制范围。从新拌混凝土的含气量测试结果来看，两种引气型减水剂均有较为稳定的引气作用，其中采用LEX—9H型外加剂试拌的6个配合比混凝土的平均含气量为2.58%，采用TH—2A型外加剂拌的5个配合混凝土的平均含气量为2.86%,均能满足2～4%的控制要求。因此，所选择的11个试验配合比的拌合物均能满足预期的技术要求。
五、混凝土抗裂性对比试验
混凝土抗裂性对比试验采用抗裂环法进行。将混凝土成型于内模尺寸为Φ305×Φ425×100㎜的模内，24h后拆除外模移入温度为20℃，湿度为60%的环境中养护观测，定期检查混凝土表面，观察裂缝的宽度，以比较混凝土抗裂性能相对优劣。混凝土抗裂试件经28天观测，11个配合比的混凝土试件侧面均未出现可见裂缝，说明试验混凝土均具有较好的抗裂性。
六、混凝土力学性能试验
按表9所列试验配合比成型的混凝土试件标准养护各龄期强度和弹性模量试验结果见表12
表12

混凝土强度及弹性模量试验结果

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	抗压强度，MPaYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©					弹性模量，GPaYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	R1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	R2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	R3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	R7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	R28YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	E2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	E7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	E28YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-01YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	44.0YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	73.7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	67.1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	44.6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	47.6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
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从表12的试验结果可以看出：
（一）所有试件的28d龄期立方体抗压强度均能满足C50混凝土的配制要求。各配全比混凝土28d龄期立方体抗压强度最大值为69.0MPa，最小值为59.4MPa，均高于配制强度58.0 MPa的要求,具有较好的强度富余系数。
（二）所有试件的28d龄期静力弹性模量均能满足C50混凝土的配制要求。在混凝土单方用水量不变的条件下，混凝土的28d龄期弹性模量随掺合料数量的增加呈现降低的趋势。
（三）试件强度达到《客运专线预应混凝土预制梁暂行技术条件》规定的带模张拉强度（设计强度的50%，25MPa）要求的龄期2d左右。
（四）试件强度达到《客运专线预应混凝土预制梁暂行技术条件》规定的初张拉强度（设计强度的80%，40MPa）要求的龄期3d左右。
七、混凝土耐久性能试验
客运专线预制箱梁C50预应力混凝土的耐久性能主要为混凝土的电通量、抗冻性、抗渗性和抗碱—骨料反应性。
（一）电通量
根据《客运专线高性能混凝土暂行技术条件》的要求，一般环境条件下C50混凝土的电通量应不大于1000C；根据《客运专线预应力混凝土预预制梁暂行技术条件》的要求，非氯盐环境条件下混凝土的电通量应大于12000C。综合以上两个技术条件的要求，合宁铁路预制箱梁C50预应力混凝土的56d电通量应不大于1000C。
按表9所列试验配合比成型的试件在标准养护条件下的混凝土电通是量结果见表13。
表13

混凝土电通量试验结果，C

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	龄期YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©		编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	龄期YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	28dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	56dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	28dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	42dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	56dYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	831YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	X-7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	1165YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	844YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	708YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	X-8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	977YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	493YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	315YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	X-9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	899YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	456YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	479YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	298YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	X-10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	730YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	439YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	291YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	X-11YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	628YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	369YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-6YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	387YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	271YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	—YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

从混凝土的电通量试验结果可知，混凝土均具有较小的电通量测试值，主要是因为混凝土中掺入了一定数量的矿物掺合料并取用了较低的用水量，除编号X-1的配合比混凝土外（电通量为1165C），其它10个试验配合比混凝土的28d龄期电通量均已小于1000C，已经达到了混凝土56d龄期电通量的限值要求。
混凝土的电通量具有随龄期增长逐步降低的趋势。对于单掺25%粉煤灰编号为X-7的试验配合比混凝土，由于其28d龄期的混凝土电通量超过1000C，但成型期尚未到56d，因此在成型龄期为42d时对其电通量进行了测试，测试结果表明42d混凝土的电通量已经达到混凝土56d龄期电通量的限值控制要求。因此，所选择的11个试验配合比的混凝土电通量均能满足规定的要求。
（二） 抗冻性
根据《客运专线预应力混凝土预制梁暂行技术条件》的要求，混凝土抗冻性试件在冻融循环次数200次后，重量缺损失不应超过5%，相对动弹性模量不应低于60%。根据试验配合比混凝土含气量、矿物掺合料和掺量的具体情况，选择了具有代表性的六个配合比试件进行抗冻性试验，分别编号为X-1和X-7的两组单掺约25%的粉煤灰的混凝土试件、编号为X-2和X-8的两组复掺约35%粉煤灰和矿渣粉的混凝土试件、编号为X-4和X-10的两组复掺约45%粉煤灰和矿渣粉的混凝土试件。六组混凝土试件28d龄期按快速法试验抗冻性结果见表14。

表14

混凝土抗冻性结果

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	200次快速冻融YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	试件重量损失率YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© %YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	试件相对动弹性模量YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© %YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.47YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	77.4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.26YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	65.5YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.13YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	84.3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.23YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	79.3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.30YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	82.9YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	0.10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	93.3YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

混凝土的抗冻性主要与所引入的空气含量、气泡的质量、混凝土强度和水胶比等因素密切相关，按照《客运专线预应力混凝土预制梁暂行技术条件》的要求，新拌混凝土的含气量宜为2~4%，从表9的混凝土配合比可以看出，表15所列六组试件的新拌混凝土含气量均在3%左右，符合《客运专线预应力混凝土预制梁暂行技术条件》的要求。从表15的混凝土抗冻性试验结果可以看出：经过200次快速冻融后，六组试件的失重率均未超过5%，相对动弹性模量均大于60%，说明六组试件均具有200次以上的抗冻性能。从试件经受200次快速冻融后的相对动弹性模量试验结果来看，掺TH—2A型外加剂混凝土具有相对较高的残余动弹性模量，说明TH—2A型外加剂引入的空气在混凝土内部具有更好的气泡结构。试件抗冻性试验结果也可以看出，在气泡质量有保证的前提下，控制混凝土拌合物含气量和具有200次的抗冻要求具有较好的相关性。
（三）抗渗性
按表9所列试验配合比成型的六组试件在标准养护条件下的混凝土抗渗性试验结果见表15。
表15

混凝土抗渗性结果

编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	水压2.0MPaYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
编号YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	试件透水状况YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	平均渗水高度mmYÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-1YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	21YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-2YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	18YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-4YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	22YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-7YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	24YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-8YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	22YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©
X-10YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	不透水YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©	16YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä© YÃ$#q`Þbbs.3c3t.comx eðõõ9Ä©

根据《客运专线预应力混凝土预制梁暂行技术条件》的技术要求，混凝土试件的抗渗等级也应不小于P20。从表16混凝土抗渗性性试验结果可以看出，在水压P20MPa时试件均未发生透水现象，劈开试件的透水高度为16~24mm，说明混凝土具有良好的密实性，混凝土的抗渗等级不小于P20。
（四） 抗碱—骨料反应性
混凝土的抗碱—骨料反应性主要与砂石料的碱活性、混凝土的总碱含量以及矿物掺合料的品质和数量有关。当骨料为活性时，应根据骨料活性的大小进行混凝土总碱含量的控制和抗碱—骨料反应抑制效能试验。由于本项目采用的河砂和人工碎石经检验为非活性骨料，在鼓励采用低碱原材料（水泥、粉煤灰、矿渣粉、外加剂）的前提下，对混凝土总碱含量可不作限值要求。因此，表9所列试验配合比的混凝土的抗碱—骨料反应性均为合格。
八、试验结论与配合比建议
经过以上试验得出如下结论
（一）所选择的水泥、粉煤灰、矿渣粉、砂、石和外加剂的性能均符合《客运专线预应力混凝土预制梁暂行技术条件》的要求。
（二）试验配合比混凝土氯离子含量经计算均满足不大于胶凝材料总量0.06%的规定，试验配合比混凝土氯离子含量合格。
（三）试验配合比混凝土的坍落度、含气量、泌水率等拌和物性能均满足预制梁和高性能混凝土技术条件和施工工艺的要求。
（四）试验配合比混凝土各龄期的强度和弹性摸量均能满足C50混凝土配制要求以及箱梁初张拉和脱模的工艺要求。
（五）试验配合比混凝土的电通量均能满足56d龄期不大于1000的要求。
（六）所选择试验的编号为X-01、X-02、X-04、X-07、X-08、X-10、的六个配合比混凝土的抗冻性均能满足F200的要求。
（七）所选择试验的编号为X-01、X-02、X-04、X-07、X-08、X-10、的六个配合比混凝土的抗渗性均能满足P20的要求。
（八）试验配合比混凝土的抗碱—骨料反应性为合格。
基于以上结论，建议试验梁按表X-04要求进行试制，并根据试验梁混凝土的水化热生温和实体梁硬化混凝土性能测试结果确定箱梁的生产配合比。

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