路面免碾压贫混凝土基层工作性研究
发布时间：2019-08-26 13:07
【摘要】：设计了一种免碾压贫混凝土基层,它可有效保证贫混凝土基层的稳定性和平整度,同时可减少施工机械、减化施工工序、缩短周期、改善施工环境.通过研究免碾压贫混凝土基层材料,分析了影响贫混凝土工作性的因素,并提出采用维勃稠度试验作为其工作性评价方法,以及维勃稠度作为其工作性评价指标,最后,采用多因素正交设计试验,并根据极差分析和方差分析,得到评价指标维勃稠度的回归公式.结果表明,维勃稠度值能够较好地评价免碾压贫混凝土的工作性.
[Abstract]:A kind of lean concrete base without rolling pressure is designed, which can effectively ensure the stability and smoothness of lean concrete base, reduce construction machinery, reduce construction process, shorten cycle and improve construction environment. Based on the study of lean concrete base material without rolling and compression, the factors affecting the workability of lean concrete are analyzed, and the Weibo consistency test is used as its workability evaluation method, and the Weibo consistency is used as its workability evaluation index. finally, the regression formula of Weibo consistency is obtained by using multi-factor orthogonal design test, and according to the extreme difference analysis and variance analysis. The results show that the Viper consistency can be used to evaluate the workability of lean concrete without rolling and compression.
【作者单位】： 长安大学材料科学与工程学院;青海省交通科学研究院;
【基金】：国家自然科学基金资助项目(51208047) 中国博士后科学基金资助项目(2013M532005;2015T81000) 青海省科技计划项目(2017-ZJ-763;2017-ZJ-764)
【分类号】：U414
[Abstract]:A kind of lean concrete base without rolling pressure is designed, which can effectively ensure the stability and smoothness of lean concrete base, reduce construction machinery, reduce construction process, shorten cycle and improve construction environment. Based on the study of lean concrete base material without rolling and compression, the factors affecting the workability of lean concrete are analyzed, and the Weibo consistency test is used as its workability evaluation method, and the Weibo consistency is used as its workability evaluation index. finally, the regression formula of Weibo consistency is obtained by using multi-factor orthogonal design test, and according to the extreme difference analysis and variance analysis. The results show that the Viper consistency can be used to evaluate the workability of lean concrete without rolling and compression.
【作者单位】： 长安大学材料科学与工程学院;青海省交通科学研究院;
【基金】：国家自然科学基金资助项目(51208047) 中国博士后科学基金资助项目(2013M532005;2015T81000) 青海省科技计划项目(2017-ZJ-763;2017-ZJ-764)
【分类号】：U414
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