设计核算中混凝土强度推定值的应用探讨  

The application of the concrete strength presumed value in the design accounting

作　　者：陈光腾 

机构地区：[1]福建省仙游县建设工程质量安全监督站,福建351200

出　　处：《建筑监督检测与造价》2012年第2期21-26,共6页Supervision Test and Cost of Construction

摘　　要：介绍常见的各种混凝土强度值分类情况和影响因素,对构件混凝土强度推定值与立方体抗压强度标准值、代表值等强度值进行对比分析,避免使用时混淆。在处理混凝土质量问题时,利用有关强度值之间的关系,注意检测时间不应错过等效养护龄期这个时机,在设计核算中就可以直接用等效养护龄期时构件混凝土强度推定值计算混凝土各种力学指标,否则应自行考虑温度、湿度和龄期对构件混凝土强度推定值的影响,不可直接利用。建议在下一轮检测规程修订时能补充不同龄期时构件混凝土强度推定值换算为混凝土强度等级的方法。The paper introduces the common classification of a variety of concrete strength values and it influencing factors,compares the concrete strength estimation value、the cube compressive strength standard values and the representing value, to avoid confusion. On the concrete quality problems,referring to the relationship between the relevant strength values,noting that the test should not miss the opportunity of the equivalent curing age, can directly use the concrete strength estimation value of the equivalent curing age to calculate in the design, Otherwise should consider the age,temperature and humidity impacts to the estimation value of the concrete strength. The paper also recommends that concrete strength estimation value conversion method for concrete strength grade at different age in the in the next round of the testing specifications.

关 键 词：混凝土 强度推定值 强度等级 等效养护龄期 换算 

分 类 号：TU528[建筑科学—建筑技术科学]