浆膜层和水膜层厚度对新拌混凝土流动性的影响

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发布时间：2020-01-06 00:00:00

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浆膜层和水膜层厚度对新拌混凝土流动性的影响

Influence of slurry film thickness and water film thickness on flowability of fresh concrete

2024年第1期

浆膜层厚度；水膜层厚度；扩展度；流动性

Slurry film thickness; Water film thickness; Expansion; Flowability

2024年第1期

10.19761/j.1000-4637.2024.01.030.05

四川省科技重点研发项目（2021YFG0272）；成都建工集团研发项目（CDJG-20200031）。

陶俊，罗小东，黄小川，肖世玉

成都建工赛利混凝土有限公司，四川成都 610000

陶俊，罗小东，黄小川，肖世玉

陶俊,罗小东,黄小川,等.浆膜层和水膜层厚度对新拌混凝土流动性的影响[J].混凝土与水泥制品,2024(1):30-34.

TAO J,LUO X D,HUANG X C,et al.Influence of slurry film thickness and water film thickness on flowability of fresh concrete[J].China Concrete and Cement Products,2024(1):30-34.

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1000

摘要：通过改变石粉含量、砂率以及砂级配得到不同浆膜层厚度（PFT）和水膜层厚度（WFT）的混凝土拌合物，通过混凝土扩展度以及T500试验，研究了PFT与WFT对新拌混凝土流动性的影响。结果表明：当WFT＞1.40 μm时，混凝土的扩展度及T500随PFT同步变化；当WFT＜1.40 μm时，混凝土的扩展度及T500随WFT同步变化；当PFT与WFT同时增加时，混凝土的扩展度增加，T500降低；当PFT与WFT同时降低时，PFT与WFT的降幅不同，混凝土的扩展度及T500变化也有所差异。 Abstract: By changing the content of stone powder, sand ratio, and sand grading, concrete mixtures with different slurry film thickness(PFT) and water film thickness(WFT) were obtained. The influence of PFT and WFT on the flowability of fresh concrete was studied through concrete expansion and T500 tests. The results indicate that when WFT＞1.40 μm, the expansion and T500 of concrete change synchronously with PFT. When WFT＜1.40 μm, the expansion and T500 of concrete change synchronously with the change of WFT. When PFT and WFT increase simultaneously, the expansion of concrete increases and T500 decreases. When both PFT and WFT decrease simultaneously, the reduction amplitude of PFT and WFT is different, and the expansion and T500 changes of concrete are also different.

英文名 : Influence of slurry film thickness and water film thickness on flowability of fresh concrete

刊期 : 2024年第1期

关键词 : 浆膜层厚度；水膜层厚度；扩展度；流动性

Key words : Slurry film thickness; Water film thickness; Expansion; Flowability

刊期 : 2024年第1期

DOI : 10.19761/j.1000-4637.2024.01.030.05

文章编号 :

基金项目 : 四川省科技重点研发项目（2021YFG0272）；成都建工集团研发项目（CDJG-20200031）。

作者 : 陶俊，罗小东，黄小川，肖世玉

单位 : 成都建工赛利混凝土有限公司，四川成都 610000

陶俊，罗小东，黄小川，肖世玉

陶俊,罗小东,黄小川,等.浆膜层和水膜层厚度对新拌混凝土流动性的影响[J].混凝土与水泥制品,2024(1):30-34.

TAO J,LUO X D,HUANG X C,et al.Influence of slurry film thickness and water film thickness on flowability of fresh concrete[J].China Concrete and Cement Products,2024(1):30-34.

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摘要

参数

结论

参考文献

引用本文

Abstract: By changing the content of stone powder, sand ratio, and sand grading, concrete mixtures with different slurry film thickness(PFT) and water film thickness(WFT) were obtained. The influence of PFT and WFT on the flowability of fresh concrete was studied through concrete expansion and T500 tests. The results indicate that when WFT＞1.40 μm, the expansion and T500 of concrete change synchronously with PFT. When WFT＜1.40 μm, the expansion and T500 of concrete change synchronously with the change of WFT. When PFT and WFT increase simultaneously, the expansion of concrete increases and T500 decreases. When both PFT and WFT decrease simultaneously, the reduction amplitude of PFT and WFT is different, and the expansion and T500 changes of concrete are also different.

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浆膜层和水膜层厚度对新拌混凝土流动性的影响

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