全再生细骨料干混砂浆抗冻及耐高温性能研究

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发布时间：2020-01-06 00:00:00

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全再生细骨料干混砂浆抗冻及耐高温性能研究

Study on frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate

2023年第12期

再生细骨料；干混砂浆；冻融循环；高温；力学性能

Recycled fine aggregate; Dry-mix mortar; Freeze-thaw cycle; High temperature; Mechanical property

2023年第12期

10.19761/j.1000-4637.2023.12.094.04

广西高校中青年教师科研基础能力提升项目（2020KY08025、2022KY0348）；广西高等教育本科教学改革工程项目（2020JGZ129、2022JGA233）；2022年度校级本科教育教学改革项目（2022XJJG51）；广西碳酸钙资源综合利用重点实验室2022年度开放基金课题项目（HZXYKFKT202203）。

崔李三1，任吉2，谭春雷1，*，邓鹏1，张晓辉3，赖飞燕3

1.广西科技大学土木建筑工程学院，广西柳州 545006；2.潍坊工商职业学院医养健康学院山东潍坊 262234；3.贺州学院广西碳酸钙资源综合利用重点实验室，广西贺州 542899

崔李三1，任吉2，谭春雷1，*，邓鹏1，张晓辉3，赖飞燕3

崔李三,任吉,谭春雷,等.全再生细骨料干混砂浆抗冻及耐高温性能研究[J].混凝土与水泥制品,2023(12):94-96,100.

CUI L S,REN J,TAN C L,et al.Study on frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate[J].China Concrete and Cement Products,2023(12):94-96,100.

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摘要：研究了全再生细骨料干混砂浆的抗冻性能和耐高温性能。抗冻试验结果表明：随着冻融循环次数的增加，试件表面脱落现象逐渐加重，质量损失率逐渐增大，抗压、抗折强度降低。高温试验结果表明：随着温度的升高，试件表面发白现象愈发明显，并出现细小裂纹、边缘脱落现象；随着温度的升高，试件的抗压强度先增大后减小，抗折强度基本呈降低趋势，质量损失率基本呈增大趋势；当温度大于400 ℃后，试件的质量大幅降低。 Abstract: The frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate were studied. The results of frost resistance test indicate that as the number of freeze-thaw cycles increases, the surface detachment phenomenon of the specimen gradually intensifies, the mass loss rate gradually increases, and the compressive and flexural strength decreases. The results of high temperature test show that as the temperature increases, the surface of the specimen becomes more white, and there are small cracks and edge detachment phenomena. As the temperature increases, the compressive strength of the specimen first increases and then decreases, the flexural strength basically shows a decreasing trend, and the mass loss rate basically shows an increasing trend. When the temperature exceeds 400 ℃, the mass of the specimen significantly decreases.

英文名 : Study on frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate

刊期 : 2023年第12期

关键词 : 再生细骨料；干混砂浆；冻融循环；高温；力学性能

Key words : Recycled fine aggregate; Dry-mix mortar; Freeze-thaw cycle; High temperature; Mechanical property

刊期 : 2023年第12期

DOI : 10.19761/j.1000-4637.2023.12.094.04

文章编号 :

基金项目 : 广西高校中青年教师科研基础能力提升项目（2020KY08025、2022KY0348）；广西高等教育本科教学改革工程项目（2020JGZ129、2022JGA233）；2022年度校级本科教育教学改革项目（2022XJJG51）；广西碳酸钙资源综合利用重点实验室2022年度开放基金课题项目（HZXYKFKT202203）。

作者 : 崔李三1，任吉2，谭春雷1，*，邓鹏1，张晓辉3，赖飞燕3

单位 : 1.广西科技大学土木建筑工程学院，广西柳州 545006；2.潍坊工商职业学院医养健康学院山东潍坊 262234；3.贺州学院广西碳酸钙资源综合利用重点实验室，广西贺州 542899

崔李三1，任吉2，谭春雷1，*，邓鹏1，张晓辉3，赖飞燕3

崔李三,任吉,谭春雷,等.全再生细骨料干混砂浆抗冻及耐高温性能研究[J].混凝土与水泥制品,2023(12):94-96,100.

CUI L S,REN J,TAN C L,et al.Study on frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate[J].China Concrete and Cement Products,2023(12):94-96,100.

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摘要

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参考文献

引用本文

Abstract: The frost resistance and high temperature resistance of dry-mix mortar with fully recycled fine aggregate were studied. The results of frost resistance test indicate that as the number of freeze-thaw cycles increases, the surface detachment phenomenon of the specimen gradually intensifies, the mass loss rate gradually increases, and the compressive and flexural strength decreases. The results of high temperature test show that as the temperature increases, the surface of the specimen becomes more white, and there are small cracks and edge detachment phenomena. As the temperature increases, the compressive strength of the specimen first increases and then decreases, the flexural strength basically shows a decreasing trend, and the mass loss rate basically shows an increasing trend. When the temperature exceeds 400 ℃, the mass of the specimen significantly decreases.

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全再生细骨料干混砂浆抗冻及耐高温性能研究

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