根据统计分析和贝叶斯估计结果，建议了强度等级为C20和C30再生混凝土抗压强度的标准值与标准差的取值。
Based on the results of Bayes estimations, the standard deviations for the compressive strength of RAC with strength grades of C20 and C30 were proposed.
这些强度的统计参数和标准值可供按概率极限状态设计方法分析煤矸石轻骨料混凝土各基本构件使用或参考。
Every statistical parameter and standard value can be used or consulted in using design method of probability ultimate state to analyse coal gange light aggregate concrete basic products.
降低透水能力的要求，则其强度可以满足JC/T 466-2000混凝土路面砖标准的要求。
When lowering the requirement of water permeability, the pervious bricks would meet the requirement of concrete pavement brick standard(JC/T 466-2000).
按照国际标准对新型仿钢丝聚丙烯合成长纤维增强高性能混凝土的工作度、含气量、强度及弯曲韧性进行了试验研究。
The experimental results for workability, air content, compressive strength and flexural toughness of modified macro polypropylene fiber reinforced high performance concrete are presented.
模框和底板的强度及平整度要求很高，达不到质量标准的模框和底板直接影响加气混凝土生产的成品率。
Mold frame and floor flatness requirements of strength and high quality standards reach the bottom of the mold box and a direct impact on the production of aerated concrete yield.
结构实体中混凝土的实际强度与标准养护的立方体强度不同，也很难准确地用间接推定的强度来测定。
The solid strength of the concrete structure is different to the sample cured under the standard condition, and it is difficult to be accurately tested by the indirect ways.
使用水泥新标准后，水泥强度同混凝土抗压强度之间的关系随之变化。
After the new cement standards come into force, changes take place in the relationship between the cement strength and concrete compression strength.
给出了一种混凝土验收批强度标准差的无偏估计方法。
A new method for unbiased estimating standard deviation of strength of concrete of inspected lot is proposed in this paper.
给出了一种混凝土验收批强度标准差的无偏估计方法。
A new method for unbiased estimating standard deviation of strength of concrete of inspected lot is proposed in this paper.
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