贵州省地方标准Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h 山砂混凝土技术规程Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hLocal Standards of Guizhou ProvinceÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hRock-Sand ConcreteÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hTechnical SpecificationsÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
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Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hDBJÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
22-016-95Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
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Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h1995贵阳Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
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Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h关于批准发布贵州省地方标准Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h《山砂混凝土技术规程》的通知Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h黔城标通发[1995]342号Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h省直各有关厅局、各地州市建设局、各设计、施工、科研、质检单位:Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h规程编制说明Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h贵州省地方标准《山砂混凝土技术规定》由原贵州省基本建设委员会于一九七八年三月以(78)黔基设字第89号文颁发执行.规定总结了贵州省20余年试验使用山砂混凝土技术的经验,它的颁发与实施,取得了极大的社会、技术经济效益,加速了我省建筑业的发展.Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h第一章总则Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h1.1为了在我省基本建设中贯彻“因地制宜,就地取材”的原则,合理的生产山砂和利用山砂配制普通混凝土,特制定本技术规程.Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h第二章山砂的质量要求Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h2.1山砂事分为两类.自然山砂和机制山砂Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hⅠ区山砂颗粒级配分区表面2.6Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
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Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h2.7山砂中有适量的粉末,对于中、低等级混凝土性能有所改善,但粉末含量过多,对混凝土性能又会带来一定不利影响.山砂中粉末(小颗粒)含量可按表面2.7规定来控制。Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hⅠ、Ⅱ两砂重叠区Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h| Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h |
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筛孔尺寸(mm)Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h山砂颗粒级配分区图Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h山砂中粉末含量限制 表2.7Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h| 混凝土强度等级Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 小于0.08mm颗粒Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h 不大于(%)Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 小于0.16mm颗粒Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h 不大于(%)Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h |
| <C20Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 20Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 30Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h |
| C20~30Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 15Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 25Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h |
| >C30Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 10Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h | 20Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h |
第三章山砂的应用Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h3.1山砂混凝土除耐磨性较差外,轴心抗压,混凝土与钢筋粘结力,弹性模量,均不比普通中、粗河砂混凝土低.抗折和抗拉强度,疲劳强度修正系数均接近中、粗河砂混凝土.山砂混凝土物理力学性能指标可按国家现行标准《混凝土结构设计规范》规定取用.Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h第四章山砂检测规则Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h4.1检验分类Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h附录一山砂压碎指标试验方法Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h一、试验目的:测定出山砂0.3~5mm粒级的压碎指标,以间接度量出坚固性.Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
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