《建筑材料试验检测》(A卷)单位姓名准考证号成绩
tË8b Z03bbs.3c3t.comý]þ±!F£+ó一、单项选择(30题/15分)
tË8b Z03bbs.3c3t.comý]þ±!F£+ó1、道路水泥在水泥分类中属于B。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、通用水泥
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、专用水泥
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、特性水泥
tË8b Z03bbs.3c3t.comý]þ±!F£+ó2、水泥粉磨时助磨剂的加入量不得超过水泥重量的B%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、5
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、2
tË8b Z03bbs.3c3t.comý]þ±!F£+ó3、低碱普通水泥的碱含量不得超过a%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、0.5
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、0.6
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、0.8
tË8b Z03bbs.3c3t.comý]þ±!F£+ó4、复合水泥中混合材料总掺加量按重量百分比不得超过 C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、30
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、40
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、50
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、60
tË8b Z03bbs.3c3t.comý]þ±!F£+ó5、散装水泥工地检验取样,按同一厂家,同一等级、同一批号,每批不应超过 D吨。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、200
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、300
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、400
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、500
tË8b Z03bbs.3c3t.comý]þ±!F£+ó6、用负压筛检测水泥细度时,应将负压调节至 D Pa。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1000—2000
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、2000—3000
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、3000—4000
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、4000—6000
tË8b Z03bbs.3c3t.comý]þ±!F£+ó7、水泥胶砂强度检验(ISO法)水灰比为A。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、0.50
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、0.60
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、0.65
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、0.40
tË8b Z03bbs.3c3t.comý]þ±!F£+ó8、水泥胶砂抗折强度试验取三条试件的平均值,如三个值中有超过平均值± B%时应将此值剔除。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、5
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、10
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、15
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、20
tË8b Z03bbs.3c3t.comý]þ±!F£+ó9、一批水泥经检验B项不符合标准规定,故判定为废品。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、强度
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、初凝时间
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、终凝时间
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、细度
tË8b Z03bbs.3c3t.comý]þ±!F£+ó10、建筑用砂的空隙率应小于C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、45
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、46
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、47
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、42
tË8b Z03bbs.3c3t.comý]þ±!F£+ó11、一批砂的细度模数为2.9,应属C砂。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、细
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、粗
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、中
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、特细
tË8b Z03bbs.3c3t.comý]þ±!F£+ó12、用石灰岩碎石配制C30公路桥涵混凝土,其压碎指标应不大于C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、10
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、12
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、16
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、20
tË8b Z03bbs.3c3t.comý]þ±!F£+ó13、配制C20混凝土,所用粗集料的针片状颗粒含量应不大于C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、15
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、20
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、25
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、30
tË8b Z03bbs.3c3t.comý]þ±!F£+ó14、拌合钢筋混凝土用水的硫酸盐含量(以SO42-计)不应大于Bmg/L。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、2000
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、2700
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、3000
tË8b Z03bbs.3c3t.comý]þ±!F£+ó15、配制C40级混凝土所用粗集料的母岩抗压强度至少应为CMPa。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、40
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、50
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、60
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、70
tË8b Z03bbs.3c3t.comý]þ±!F£+ó16、设计普通配筋率钢筋混凝土结构的配合比时,其坍落度可采用Bmm。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、10—30
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、30—50
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、50—70
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、70—90
tË8b Z03bbs.3c3t.comý]þ±!F£+ó17、设计公路桥涵工程混凝土配合比时,当混凝土强度等级为C20—C35时,标准差б值取CMPa为宜。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、4
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、5
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、6
tË8b Z03bbs.3c3t.comý]þ±!F£+ó18、在粉煤灰化学成分中,C约占 45%—60%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、Al2O3
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、Fe2O3
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、SiO2
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、CaO
tË8b Z03bbs.3c3t.comý]þ±!F£+ó19、一组混凝土试件的抗压强度值分别为:24.0MPa、27.2MPa、20.0MPa,则此组试件的强度代表值为AMPa。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、24
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、27.2
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、20
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、23.7
tË8b Z03bbs.3c3t.comý]þ±!F£+ó20、普通减水剂的减水率不小于B%为合格。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、5
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、8
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、10
tË8b Z03bbs.3c3t.comý]þ±!F£+ó21、重交通道路石油沥青的蜡含量不大于C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、2
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、5
tË8b Z03bbs.3c3t.comý]þ±!F£+ó22、道路液体石油沥青的粘度(C25.5)应小于B(S)。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、15
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、20
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、25
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、30
tË8b Z03bbs.3c3t.comý]þ±!F£+ó23、沥青针入度试验,其标准试验条件温度为C℃。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、15
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、20
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、25
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、30
tË8b Z03bbs.3c3t.comý]þ±!F£+ó24、沥青延度试验,拉伸速度控制在Bcm±0.25cm/min。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、5
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、8
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、10
tË8b Z03bbs.3c3t.comý]þ±!F£+ó25、沥青与集料的粘附性试验,试验后沥青膜完全保存,剥离面积百分率接近于0,则其粘附性等级评为D级。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、2
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、3
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、5
tË8b Z03bbs.3c3t.comý]þ±!F£+ó26、高速公路沥青面层粗集料的压碎值应不大于B%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、25
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、28
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、30
tË8b Z03bbs.3c3t.comý]þ±!F£+ó27、对沥青混合料进行车辙试验,主要是评价其D性。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、抗滑性
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、耐久性
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、低温抗裂性
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、高温稳定性
tË8b Z03bbs.3c3t.comý]þ±!F£+ó28、沥青面层用矿粉粒度0.6mm筛的通过率应为C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、80
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、90
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、100
tË8b Z03bbs.3c3t.comý]þ±!F£+ó29、标号为AH—90的沥青,其针入度为C(0.1mm)
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、40—60
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、60—80
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、80—100
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、100—120
tË8b Z03bbs.3c3t.comý]þ±!F£+ó30、高速公路沥青混凝土面层的压实度标准为不小于C%。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、90
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、94
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、95
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、98
tË8b Z03bbs.3c3t.comý]þ±!F£+ó二、多项选择(20题/20分)
tË8b Z03bbs.3c3t.comý]þ±!F£+ó1、硅酸盐水泥的水化产物占90%以上的两种产物是AD。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、水化硅酸钙
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、水化铁铝酸钙
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、钙矾石
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、氢氧化钙
tË8b Z03bbs.3c3t.comý]þ±!F£+ó2、在生产硅酸盐水泥时,设法提高A D的含量,可以制得高抗折强度的道路水泥。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、C3S
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、C2S
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、C3A
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、C4AF
tË8b Z03bbs.3c3t.comý]þ±!F£+ó3、矿渣硅酸盐水泥的适用范围是ABC。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、地下、水中和海水工程
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、高温受热和大体积工程
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、蒸汽养护砼工程
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、冬期施工砼工程
tË8b Z03bbs.3c3t.comý]þ±!F£+ó4、选用的砼外加剂应有供货单位提供的 ABC技术文件。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、产品说明书(应标有主要成分)
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、出厂检验报告及合格证
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、掺外加剂砼性能检验报告
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、集料试验报告
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、水质分析报告
tË8b Z03bbs.3c3t.comý]þ±!F£+ó5、混凝土工程可以采用以下三种膨胀剂ACD。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、硫铝酸钙类
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、氯化铁类
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、硅铝酸钙—氧化钙类
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、氧化钙类
tË8b Z03bbs.3c3t.comý]þ±!F£+ó6、测定砂的表面含水率必须先测定其AB。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、含水率
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、吸水率
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、比表面积
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、空隙率
tË8b Z03bbs.3c3t.comý]þ±!F£+ó7、进行细集料砂当量试验的目的是AB。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、测定其粘土杂质含量
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、评定其清洁程度
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、测定其坚固性
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、测定其颗粒级配
tË8b Z03bbs.3c3t.comý]þ±!F£+ó8、测定混凝土凝结时间的贯入阻力仪由ABCD四个部分组成。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、加荷装置
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、测针
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、砂浆试样筒
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、标准筛
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、维卡仪
tË8b Z03bbs.3c3t.comý]þ±!F£+óF、跳桌
tË8b Z03bbs.3c3t.comý]þ±!F£+ó9、混凝土抗折试件的(标准的和非标准的)规格为AB。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、150×150×550(mm)
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、100×100×400(mm)
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、150×150×600(mm)
tË8b Z03bbs.3c3t.comý]þ±!F£+ó10、进行水泥混凝土配合比设计时,最基本的“三大参数”是 AC E 。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、水灰比
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、坍落度
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、 砂率
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、空隙率
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、用水量
tË8b Z03bbs.3c3t.comý]þ±!F£+óF、含气量
tË8b Z03bbs.3c3t.comý]þ±!F£+ó11、配制公路桥涵高强度混凝土的要求是 AB。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、水胶比0.24—0.38
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、(水泥+掺合料) ≯550—600kg/m3
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、砂率(40—45)%
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、坍落度(220—250)mm
tË8b Z03bbs.3c3t.comý]þ±!F£+ó12、《公路工程水泥混凝土试验规程》中推荐的砼强度快速试验方法为AB。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、1h促凝蒸压法
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、4h压蒸养护法
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、3d强度推算法
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、80℃沸水法
tË8b Z03bbs.3c3t.comý]þ±!F£+ó13、沥青混合料试件的制作方法有三种分别是ABD。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、击实法
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、轮碾法
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、环刀法
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、静压法
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、钻芯法
tË8b Z03bbs.3c3t.comý]þ±!F£+ó14、沥青混合料中沥青含量试验方法有 ABCE等四种方法。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、回流式抽提仪法
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、脂肪抽提仪法
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、射线法
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、蜡封法
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、离心分离法
tË8b Z03bbs.3c3t.comý]þ±!F£+óF、真空法
tË8b Z03bbs.3c3t.comý]þ±!F£+ó15、沥青混合料水稳定性检验方法有____ABC_____等三种。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、浸水马歇尔试验法
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、真空饱和马歇尔试验法
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、冻融劈裂试验法
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、水煮法
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、静态浸水法
tË8b Z03bbs.3c3t.comý]þ±!F£+ó16、沥青面层用细集料质量技术的三项要求是_A_B_C____。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、视密度
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、砂当量
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、坚固性
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、碱含量
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、SO3
tË8b Z03bbs.3c3t.comý]þ±!F£+ó17、用于抗滑表层沥青混合料中的粗集料的三项主要技术指标是__ABC________。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、磨光值
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、冲击值
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、磨耗值
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、坚固性
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、含泥量
tË8b Z03bbs.3c3t.comý]þ±!F£+ó18、沥青面层用矿粉质量技术要求中粒度范围为_CDE________%等三个。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、<2.5㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、<1.2㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、<0.6㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、<0.15㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、<0.75㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+ó19、重交通道路石油沥青,按针入度的不同分为_C_D_EGH_____等标号。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、A-100甲
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、A-100乙
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、AH-50
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、AH-70
tË8b Z03bbs.3c3t.comý]þ±!F£+óE、AH-90
tË8b Z03bbs.3c3t.comý]þ±!F£+óF、A-140
tË8b Z03bbs.3c3t.comý]þ±!F£+óG、AH-110
tË8b Z03bbs.3c3t.comý]þ±!F£+óH、AH-130
tË8b Z03bbs.3c3t.comý]þ±!F£+ó20、中粒式沥青混合料的集料最大粒径为_B C_________。
tË8b Z03bbs.3c3t.comý]þ±!F£+óA、26.5㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óB、16㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óC、19㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+óD、13.2㎜
tË8b Z03bbs.3c3t.comý]þ±!F£+ó三、判断题(20题/20分)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
1、 道路水泥 、砌筑水泥、耐酸水泥、耐碱水泥都属于专用水泥。( √)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
2、 高速公路路面混凝土用水泥的铝酸三钙含量不宜大于7%。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
3、 路面和桥面混凝土中不得使用硅灰或磨细矿渣粉。( *)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
4、混凝土抗压强度试件以边长150㎜的正立方体为标准试件,其集料最大粒径为40㎜。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
5、 混凝土抗压试件在试压前如有蜂窝等缺陷,应原状试验,不得用水泥浆修补。(*)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
6、公路桥涵砌体使用水泥砂浆的施工配合比可以用重量比,也可用体积比 。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
7、用洛杉矶法对粗集料进行磨耗试验,可以检验其坚固性。( *)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
8、为满足公路桥涵混凝土耐久性的需要,在配合比设计时应从最大水灰比和最小水泥用量两个方面加以限制。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
9、有抗冻要求的桥涵混凝土工程,不得掺入引气剂,以免增加砼中含气量。(*)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
10、冬期施工,混凝土拌合物的出机温度不宜低于10℃。( √)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
11、混凝土中掺入粉煤灰可以节约水泥,但不能改善砼的其他性能。(* )tË8b Z03bbs.3c3t.comý]þ±!F£+ó
12、混凝土外加剂是在砼拌制过程中掺入用以改善砼性质的物质,除特殊情况外,掺量不大于水泥质量的5%(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
13、在道路工程中,最常用的沥青材料是石油沥青和煤沥青,其次是天然沥青。( √)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
14、沥青密度是在规定温度20℃条件下,单位体积的质量,单位为kg/m3或g/cm3。(*)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
15、沥青的改性剂改性效果较好的有:高聚物类改性剂、微填料类改性剂、纤维类改性剂、硫磷类改性剂。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
16、石油沥青与煤沥青在元素组成上的主要区别是:石油沥青含碳多而含氢少,煤沥青则碳少而氢多。(*)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
17、高速公路和一级公路沥青面层可采用沥青混凝土混合料或沥青碎石混合料铺筑。( *)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
18、沥青混合料劈裂试验是为了测定热拌沥青混合料在规定温度和加载速率时弯曲破坏的力学性质。( *)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
19、马歇尔稳定度试验是设计沥青混合料配合比的主要技术指标。(√)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
20、中粒式级配沥青混合料的沥青用量范围一般在7—8%。(*)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
四、简答题(5题/25分)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
1、试述硅酸盐水泥熟料矿物成分中,硅酸三钙对水泥性能的影响。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
答:硅酸三钙,水化速度快,水化热高,其水化产物对水泥早期强度和后期强度起主要作用。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
2、高速公路水泥混凝土路面对所用水泥的化学、物理、力学指标有多项要求,请列出其中五项要求指标。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
答:(1)MgO≯5%tË8b Z03bbs.3c3t.comý]þ±!F£+ó
(2)SO3≯3.5% (3)碱含量≤0.6%tË8b Z03bbs.3c3t.comý]þ±!F£+ó
(4)烧失量≯3%(5)初凝不早于1.5htË8b Z03bbs.3c3t.comý]þ±!F£+ó
(6)比表面积300-450m2/kgtË8b Z03bbs.3c3t.comý]þ±!F£+ó
3、混凝土配合比设计规程(JGJ55-2000)中配制强度计算式fcu.o≥fcu.k+1.645б,请解释一下1.645б的涵义。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
σ----混凝土强度标准差(MPa)tË8b Z03bbs.3c3t.comý]þ±!F£+ó
1.645—强度保证率为95%时的保证率系数。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
4、评价粘稠石油沥青路用性能最常用的“三大指标”是什么?各用什么仪器检验?tË8b Z03bbs.3c3t.comý]þ±!F£+ó
(1)针入度---用针入度仪检测tË8b Z03bbs.3c3t.comý]þ±!F£+ó
(2)延度---用延度仪测量tË8b Z03bbs.3c3t.comý]þ±!F£+ó
(3)软化点---用软化点试验仪测量tË8b Z03bbs.3c3t.comý]þ±!F£+ó
5、沥青混合料配合比设计按马歇尔试验法进法,试验技术指标有哪几项?tË8b Z03bbs.3c3t.comý]þ±!F£+ó
击实次数\稳定度\流值\密度\空隙度\饱和度\油石比.tË8b Z03bbs.3c3t.comý]þ±!F£+ó
五、计算题(2题/20分) tË8b Z03bbs.3c3t.comý]þ±!F£+ó
1、试设计钢筋混凝土T型梁用C30级混凝土初步配合比(假定重量法)。水泥P.042.5级,强度富余系数1.13;中砂细度模数2.70;5—31.5碎石连续级配:要求坍落度30—50mm。tË8b Z03bbs.3c3t.comý]þ±!F£+ó
更多请下载下面附件tË8b Z03bbs.3c3t.comý]þ±!F£+ó
tË8b Z03bbs.3c3t.comý]þ±!F£+ó