【多选题】
（TB10753-2010）标准规定，橡胶止水带和塑料止水带均有的技术性能指标有___。
A. 耐碱性
B. 拉伸性能
C. 撕裂强度
D. 热空气老化
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相关试题
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混凝土现浇梁的养护期温度应符合下列规定___。
A. 芯部温度不宜超过60℃
B. 最高不得大于65℃
C. 梁体混凝土芯部与-表面与-环境温度之差不宜大于15℃
D. 养护用水温度与混凝土表面温度之差不得大于15℃。
【多选题】
属于铁路工地试验室信用评价违规行为，且对试验室扣分值不低于6分的是___
A. 未配备信息化管理员
B. 出具虚假数据、报告，蓄意隐瞒实际质量状况
C. 伪造或故意修改试验检测数据，出具虚假试验检测报告
D. 擅自改变信息管理系统设置，造成信息管理系统工作不正常或传输虚假数据；故意停用、损坏信息管理系统
【多选题】
以下是对室内允许差的叙述，正确的有。___
A. 同一分析试验室同一分析人员（或两个分析人员），采用标准方法分析同一试样时，两次分析结果的允许偏差。
B. 如超出允许范围，应在短时间内进行第三次测定（或第三者测定），测定结果与前两次或任一次分析结果之差值符合允许差规定时，则取其平均值，否则，应查找原因，重新进行分析。
C. 两个试验室采用标准同一方法对同一试样各自进行分析时，所得分析结果的平均值之差的允许值。
D. 如有争议，应商定另一单位按标准进行仲裁分析。
【多选题】
下列叙述不正确的是___。
A. 铁路项目中填料的最大干密度均采用击实试验测得。
B. 逐级加压法进行混凝土抗渗试验时，混凝土抗渗等级应以每组6个试件中四个试件未出现渗水时的最大压力乘以10来表示。
C. 混凝土的碳化有利增加混凝土的强度，保护内部钢筋。
D. 混凝土受到硫酸盐侵蚀时，外观会出现白色结晶，强度会降低。
【多选题】
下列关于铁路项目路基填筑质量检测叙述正确的是___。
A. 高速铁路基床以下路基填筑质量采用压实系数、地基系数两个指标进行双控。
B. 地基系数和动态变形模量之间有一定的相关性，在铁路土工试验规程中有两者的换算关系式，该关系式是适合于所有的路基填筑质量检测的。
C. 高速铁路路基基床表层采用压实系数、地基系数和动态变形模量三个指标进行填筑质量控制。
D. 高速铁路路基基床表层采用孔隙率、地基系数和动态变形模量三个指标进行填筑质量控制。
【多选题】
根据铁路混凝土规范，在进行混凝土配合比设计时，还需要进行___的核算，当不满足规范要求时，需要重新选择原材料或调整基准配合比。
A. 总碱量
B. 氯离子含量
C. 三氧化硫含量
D. 浆骨体积比
【多选题】
已有牌号钢筋相同。___
A. 钢筋实测抗拉强度与实测屈服强度之比不小于1.25。
B. 钢筋实测屈服强度与屈服强度特性值之比不大于1.30
C. 钢筋的最大力总伸长率不小于9%
D. 对于没有明显屈服强度的钢，屈服强度特性值ReL应采用规定非比例伸长应
【多选题】
高聚物改性沥青基层处理剂进场检验及判定以同厂家、同品种、同批号产品，每批。___
A. 不大于3t
B. 不足3t也按一批计
C. 抽检结果全部符合技术条件要求者，判为整批合格
D. 若有一项技术要求不合格时，应双倍抽样检验该项目，若仍有一项不合格，则判整批不合格。
【多选题】
关于Evd试验，说法正确的是___。
A. 落锤质量10kg,最大冲击力7.07kN，冲击持续时间18±2ms
B. 荷载板直径为：30cm, 板厚25mm
C. 是一种动态平板载荷试验
D. 检测参数名称为：动态变形模量,计量单位为：MPa
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