再生微粉对再生混凝土力学性能的影响_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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再生微粉对再生混凝土力学性能的影响

Effects of recycled powder on mechanical properties of recycled concrete

2024年第11期

再生微粉；再生混凝土；力学性能；微观结构；机理分析

Recycled powder; Recycled concrete; Mechanical property; Microstructure; Mechanism analysis

2024年第11期

10.19761/j.1000-4637.2024.11.111.05

湖北省重点研发计划项目（2020BAB071）；武汉工程大学研究生创新基金资助项目（CX2021141）。

刘诚1，2，白希选1，2，*，王相卿1，2

1.武汉工程大学土木工程与建筑学院，湖北武汉430073；2.湖北省绿色土木工程材料与结构工程研究中心，湖北武汉430073

刘诚1，2，白希选1，2，*，王相卿1，2

刘诚,白希选,王相卿.再生微粉对再生混凝土力学性能的影响[J].混凝土与水泥制品,2024(11):111-114,120.

LIU C,BAI X X,WANG X Q.Effects of recycled powder on mechanical properties of recycled concrete[J].China Concrete and Cement Products,2024(11):111-114,120.

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1000

摘要：研究了再生微粉等质量取代0、5%、10%、15%、20%的水泥对再生混凝土抗压强度，劈裂抗拉强度和弹性模量的影响，并进行了XRD和SEM分析。结果表明：随着再生微粉掺量的增加，试件各龄期的抗压强度、劈裂抗拉强度和弹性模量基本呈先增大后减小的趋势，最佳掺量为15%；再生微粉具有一定的火山灰活性和填充效应，适量掺入可以有效改善再生混凝土的界面过渡区结构，使其更加致密。 Abstract: The effects of replacing 0, 5%, 10%, 15%, and 20% cement with recycled powder on the compressive strength, splitting tensile strength, and elastic modulus of recycled concrete were studied, and the XRD and SEM analysis were conducted. The results show that with the increase of the content of recycled powder, the compressive strength, splitting tensile strength, and elastic modulus of the specimens at each age show a trend of first increasing and then decreasing, and the optimal content is 15%. Recycled powder has certain volcanic ash activity and filling effect, and moderate addition can effectively improve the interface transition zone structure of recycled concrete, making it denser.

英文名 : Effects of recycled powder on mechanical properties of recycled concrete

刊期 : 2024年第11期

关键词 : 再生微粉；再生混凝土；力学性能；微观结构；机理分析

Key words : Recycled powder; Recycled concrete; Mechanical property; Microstructure; Mechanism analysis

刊期 : 2024年第11期

DOI : 10.19761/j.1000-4637.2024.11.111.05

文章编号 :

基金项目 : 湖北省重点研发计划项目（2020BAB071）；武汉工程大学研究生创新基金资助项目（CX2021141）。

作者 : 刘诚1，2，白希选1，2，*，王相卿1，2

单位 : 1.武汉工程大学土木工程与建筑学院，湖北武汉430073；2.湖北省绿色土木工程材料与结构工程研究中心，湖北武汉430073

刘诚1，2，白希选1，2，*，王相卿1，2

刘诚,白希选,王相卿.再生微粉对再生混凝土力学性能的影响[J].混凝土与水泥制品,2024(11):111-114,120.

LIU C,BAI X X,WANG X Q.Effects of recycled powder on mechanical properties of recycled concrete[J].China Concrete and Cement Products,2024(11):111-114,120.

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摘要

参数

结论

参考文献

引用本文

Abstract: The effects of replacing 0, 5%, 10%, 15%, and 20% cement with recycled powder on the compressive strength, splitting tensile strength, and elastic modulus of recycled concrete were studied, and the XRD and SEM analysis were conducted. The results show that with the increase of the content of recycled powder, the compressive strength, splitting tensile strength, and elastic modulus of the specimens at each age show a trend of first increasing and then decreasing, and the optimal content is 15%. Recycled powder has certain volcanic ash activity and filling effect, and moderate addition can effectively improve the interface transition zone structure of recycled concrete, making it denser.

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