预包浆再生骨料自密实混凝土力学与抗氯离子渗透性研究

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



预包浆再生骨料自密实混凝土力学与抗氯离子渗透性研究

Study on Mechanical Properties and Resistance to Chloride Ion Permeability of Self-compacting Concrete with Pre-grouted Recycled Aggregate

2021年第3期

骨料包浆；抗压强度；劈裂抗拉强度；氯离子渗透性

Aggregate grouting; Compressive strength; Split tensile strength; Chloride ion permeability

2021年第3期

10.19761/j.1000-4637.2021.03.097.04

宁夏回族自治区大学生创新项目（2019107490088）；宁夏高等学校科学研究项目（NGY2018052）；宁夏回族自治区重点研发计划重大项目（2018BEG02009）。

金宝宏，宋牧原，谢鑫，曹鑫铖

宁夏大学土木与水利工程学院，宁夏银川 750021

金宝宏，宋牧原，谢鑫，曹鑫铖

金宝宏,宋牧原,谢鑫,等.预包浆再生骨料自密实混凝土力学与抗氯离子渗透性研究[J].混凝土与水泥制品,2021(3):97-100.

JIN B H,SONG M Y,XIE X,et al.Study on Mechanical Properties and Resistance to Chloride Ion Permeability of Self-compacting Concrete with Pre-grouted Recycled Aggregate[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(3):97-100.

浏览量:

1000

摘要：研究了再生粗骨料替代率和骨料包浆对自密实再生混凝土力学性能和抗氯离子渗透性的影响。结果表明：当再生粗骨料替代率分别为30%、60%、100%时，与未包浆再生骨料混凝土相比，预包浆再生骨料混凝土的坍落扩展度分别提高了0.76%、3.33%、5.17%，抗压强度分别提高了5.9%、3.2%、6.1%，劈裂抗拉强度分别提高了5.2%、11.2%、18.2%；随着再生粗骨料替代率的增加，混凝土的电通量值增大，当再生粗骨料替代率分别为30%、60%、100%时，与未包浆再生骨料混凝土相比，预包浆再生骨料混凝土的电通量值分别下降了16.7%、22.9%、8.6%；骨料经过包浆处理后，改善了自密实再生混凝土的力学性能及抗氯离子渗透性。 Abstract: The effects of recycled coarse aggregate replacement rate and aggregate grouting on the mechanical properties and resistance to chloride ion permeability of self-compact recycled concrete were studied. The results show that when the replacement rates of recycled coarse aggregate are 30%, 60% and 100%, compared with the ungrouted concrete, the slump-flow expansion of the grouted concrete are increased respectively by 0.76%, 3.33% and 5.17%, the compressive strength of the grouted concrete are increased respectively by 5.9%, 3.2% and 6.1%, the split tensile strength of the grouted concrete are increased respectively by 5.2%, 11.2% and 18.2%. With the increase of replacement rate of recycled coarse aggregate, the concrete electric flux value increases. When the replacement rates of recycled coarse aggregate are 30%, 60% and 100%, the electric flux values of the grouted recycled concrete decrease respectively by 16.7%, 22.9% and 8.6% compared with ungrouted concrete. The mechanical properties and resistance to chloride ion permeability of the self-compacting recycled concrete are improved after the aggregates are grouted.

英文名 : Study on Mechanical Properties and Resistance to Chloride Ion Permeability of Self-compacting Concrete with Pre-grouted Recycled Aggregate

刊期 : 2021年第3期

关键词 : 骨料包浆；抗压强度；劈裂抗拉强度；氯离子渗透性

Key words : Aggregate grouting; Compressive strength; Split tensile strength; Chloride ion permeability

刊期 : 2021年第3期

DOI : 10.19761/j.1000-4637.2021.03.097.04

文章编号 :

基金项目 : 宁夏回族自治区大学生创新项目（2019107490088）；宁夏高等学校科学研究项目（NGY2018052）；宁夏回族自治区重点研发计划重大项目（2018BEG02009）。

作者 : 金宝宏，宋牧原，谢鑫，曹鑫铖

单位 : 宁夏大学土木与水利工程学院，宁夏银川 750021

金宝宏，宋牧原，谢鑫，曹鑫铖

金宝宏,宋牧原,谢鑫,等.预包浆再生骨料自密实混凝土力学与抗氯离子渗透性研究[J].混凝土与水泥制品,2021(3):97-100.





摘要

参数

结论

参考文献

引用本文

Abstract: The effects of recycled coarse aggregate replacement rate and aggregate grouting on the mechanical properties and resistance to chloride ion permeability of self-compact recycled concrete were studied. The results show that when the replacement rates of recycled coarse aggregate are 30%, 60% and 100%, compared with the ungrouted concrete, the slump-flow expansion of the grouted concrete are increased respectively by 0.76%, 3.33% and 5.17%, the compressive strength of the grouted concrete are increased respectively by 5.9%, 3.2% and 6.1%, the split tensile strength of the grouted concrete are increased respectively by 5.2%, 11.2% and 18.2%. With the increase of replacement rate of recycled coarse aggregate, the concrete electric flux value increases. When the replacement rates of recycled coarse aggregate are 30%, 60% and 100%, the electric flux values of the grouted recycled concrete decrease respectively by 16.7%, 22.9% and 8.6% compared with ungrouted concrete. The mechanical properties and resistance to chloride ion permeability of the self-compacting recycled concrete are improved after the aggregates are grouted.

扫二维码用手机看

[1] 邱树恒,王军,冯庆革,等.建筑垃圾再生粗细骨料对混凝土强度的影响[J].广西大学学报(自然科学版),2011,36(3):518-524.
[2] 元成方,李爽,曾力,等.砖砼混合再生粗骨料混凝土力学性能研究[J].硅酸盐通报,2018,37(2):398-402.
[3] 刘清,韩风霞,于广明,等.再生粗骨料自密实混凝土基本力学性能[J].建筑材料报,2020(2):1-15.
[4] 黄顺涛,李振兴,秦拥军,等.预拌C40再生粗骨料混凝土力学性能研究[J].混凝土,2018(7):97-100,113.
[5] 姚宇峰,金宝宏,章海刚,等.再生粗骨料替代率对再生混凝土力学性能影响[J].广西大学学报(自然科学版),2016,41(4):1187-1193.
[6] 胡波,柳炳康,张李黎.再生混凝土氯离子渗透性能测试与分析[J].合肥工业大学学报(自然科学版),2009,32(8):1240-1243.
[7] 王涛,刘子科,李海燕,等.自密实混凝土抗氯离子渗透性的影响因素研究[J].混凝土,2013(3):57-59.
[8] 邓婉君,李宏.活性掺合料对再生混凝土氯子渗透性的影响研究[J].混凝土,2016(12):73-75.
[9] MA Z M,LIU M,TANG Q,et al.Chloride permeability of recycled aggregate concrete under the coupling effect of freezing-thawing, elevated temperature or mechanical damage[J].Construction and Building Materials,2019,237:117648.
[10] TANG Z,LI W G,TAM V W Y,et al.Investigation on dynamic mechanical properties of fly ash/slag-based geopolymeric recycled aggregate concrete[J].Composites Part B,2020,185:107776.
[11] PLIYA P,CREE D,HAJILOO H,et al.High-Strength Concrete Containing Recycled Coarse Aggregate Subjected to Elevated Temperatures[J].Fire Technology,2019,55:1477-1494.
[12] 郭鹏,韦万峰,杨帆,等.再生集料及再生混凝土界面过渡区研究进展[J].硅酸盐通报,2017,36(7):2280-2286,2292.
[13] 李福海.再生混凝土微观结构分析[C]//中国土木工程学会混凝土及预应力混凝土分会.“发展绿色技术建设节约结构”——第十四届全国混凝土及预应力混凝土学会议论文集.中国土木工程学会混凝土及预应力混凝土分会:中国土木工程学会,2007.
[14] 覃荷瑛,唐慧.粗骨料含量对再生混凝土抗氯离子渗透性能影响的试验研究[J].中外公路,2015,35(6):286-290.

上一个

再生细骨料干混砂浆力学性能试验研究

下一个

预应力混凝土钢管桁架叠合板的研究与应用

头部文案

预包浆再生骨料自密实混凝土力学与抗氯离子渗透性研究

相关文件