水泥基自密实修复砂浆的制备及性能研究_《混凝土与水泥制品》杂志社

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



水泥基自密实修复砂浆的制备及性能研究

Research on Preparation and Properties of Cement-based Self-compacting Repair Mortar

2022年第6期

修复砂浆；可再分散性乳胶粉；纤维；消泡剂；胶砂比

Repair mortar; Redispersible latex powder; Fiber; Defoamer; Binder sand ratio

2022年第6期

10.19761/j.1000-4637.2022.06.001.05

国家自然科学基金项目（51878366、52078261）；山东省自然科学基金项目（ZR2020ME036）；青岛市科技惠民示范引导专项项目（20-3-4-10-nsh）。

郭超1，李秋义2，岳公冰2

1.青岛理工大学土木工程学院，山东青岛 266033；2.青岛农业大学建筑工程学院，山东青岛 266033

郭超1，李秋义2，岳公冰2

郭超,李秋义,岳公冰.水泥基自密实修复砂浆的制备及性能研究[J].混凝土与水泥制品,2022(6):1-5.

GUO C,LI Q Y,YUE G B.Research on Preparation and Properties of Cement-based Self-compacting Repair Mortar[J].China Concrete and Cement Products,2022(6):1-5.

浏览量:

1000

摘要：为充分发挥无机修复材料在混凝土结构损伤中的应用，研究了骨料种类及粒径、减水剂掺量、胶砂比、胶粉掺量、聚丙烯（PP）纤维掺量、消泡剂掺量对自密实快速修复砂浆工作性及力学性能的影响。结果表明：石英砂砂浆比河砂砂浆有更高的抗压强度，但韧性较差；综合考虑性能及经济性，减水剂掺量为1.6%较为适宜；随着胶砂比降低，砂浆的力学性能下降；掺入2.5%胶粉的砂浆比空白组流动度提高了3.1%，抗折强度提高了8.5%，但过量的胶粉对砂浆性能产生消极影响；PP纤维对砂浆的工作性无明显影响，但随着其掺量增加，砂浆的抗压强度下降；消泡剂的掺入减小了砂浆的流动度，但掺量超过0.1%后几乎不再变化，而砂浆的力学性能随着其掺量的增加先上升后下降。 Abstract: To enhance the application of inorganic repair materials in the damage of concrete structures, the effects of sand type and particle size, superplasticizer dosage, binder sand ratio, latex powder and PP fiber, defoamer dosage on the basic performance of self-compacting rapid repair mortar were studied. The results show that the mortar made of quartz sand has higher compressive strength but lower toughness compared with river sand. From the performance and economy point of view, 1.6% dosage of superplasticizer is more suitable. The mechanical properties of the mortar decrease with the decrease of the binder sand ratio. 2.5% latex powder can improve 3.1% fluidity and 8.5% flexural strength of mortar, but too much latex powder will have a negative impact on the properties. PP fiber has no obvious effect on the workability of mortar, but with the increase of its content, the compressive strength shows a downward trend. The addition of defoamer reduces the fluidity of mortar, but it almost does not change when the content exceeds 0.1%. The mechanical strength first increases and then decreases with the increase of defoamer dosage.

英文名 : Research on Preparation and Properties of Cement-based Self-compacting Repair Mortar

刊期 : 2022年第6期

关键词 : 修复砂浆；可再分散性乳胶粉；纤维；消泡剂；胶砂比

Key words : Repair mortar; Redispersible latex powder; Fiber; Defoamer; Binder sand ratio

刊期 : 2022年第6期

DOI : 10.19761/j.1000-4637.2022.06.001.05

文章编号 :

基金项目 : 国家自然科学基金项目（51878366、52078261）；山东省自然科学基金项目（ZR2020ME036）；青岛市科技惠民示范引导专项项目（20-3-4-10-nsh）。

作者 : 郭超1，李秋义2，岳公冰2

单位 : 1.青岛理工大学土木工程学院，山东青岛 266033；2.青岛农业大学建筑工程学院，山东青岛 266033

郭超1，李秋义2，岳公冰2

郭超,李秋义,岳公冰.水泥基自密实修复砂浆的制备及性能研究[J].混凝土与水泥制品,2022(6):1-5.

GUO C,LI Q Y,YUE G B.Research on Preparation and Properties of Cement-based Self-compacting Repair Mortar[J].China Concrete and Cement Products,2022(6):1-5.





摘要

参数

结论

参考文献

引用本文

Abstract: To enhance the application of inorganic repair materials in the damage of concrete structures, the effects of sand type and particle size, superplasticizer dosage, binder sand ratio, latex powder and PP fiber, defoamer dosage on the basic performance of self-compacting rapid repair mortar were studied. The results show that the mortar made of quartz sand has higher compressive strength but lower toughness compared with river sand. From the performance and economy point of view, 1.6% dosage of superplasticizer is more suitable. The mechanical properties of the mortar decrease with the decrease of the binder sand ratio. 2.5% latex powder can improve 3.1% fluidity and 8.5% flexural strength of mortar, but too much latex powder will have a negative impact on the properties. PP fiber has no obvious effect on the workability of mortar, but with the increase of its content, the compressive strength shows a downward trend. The addition of defoamer reduces the fluidity of mortar, but it almost does not change when the content exceeds 0.1%. The mechanical strength first increases and then decreases with the increase of defoamer dosage.

扫二维码用手机看

[1] KATHIRVEL P,SREEKUMARAN S.Sustainable Development of Ultra High Performance Concrete Using Geopolymer Technology[J].Journal of Building Engineering,2021,39:102267.
[2] AL-ZAHRANI M M,MASLEHUDDIN M,AL-DULAIJAN S U,et al.Mechanical Properties and Durability Characteristics of Polymer and Cement-based Repair Materials[J].Cement and Concrete Composites,2003,25(4):527-537.
[3] 罗小砚,张巧玲,程原.高分子量聚醋酸乙烯酯的醇解研究[J].胶体与聚合物,2006,24(2):22-23.
[4] 范帅鹏,袁琦,何小芳.外加剂对水泥基自流平砂浆流动性和力学性能的影响[J].砖瓦,2020(9):93-95,97.
[5] 杜鹏.硫铝酸盐水泥基修补砂浆的研究[D].济南:济南大学,2011.
[6] GUO S Y,ZHANG X,CHEN J Z,et al.Mechanical and Interface Bonding Properties of Epoxy Resin Reinforced Portland Cement Repairing Mortar[J].Construction and Building Materials,2020,264:120715.
[7] 尹艳平,张敏,边纯君,等.PVAc胶乳改性水泥砂浆的性能[J].材料科学与工程学报,2016,34(6):978-982.
[8] 中华人民共和国国家质量监督检验总局.水泥胶砂流动度测定方法:GB/T 2419—2005[S].北京:中国标准出版社,2005.
[9] 国家市场监督管理总局.水泥胶砂强度检验方法(ISO法):GB/T 17671—1999[S].北京:中国标准出版社,1999.
[10] 李悦,王敏,张丽慧,等.减水剂复合聚合物对橡胶水泥砂浆强度的影响[J].北京工业大学学报,2009,35(9):1215-1219.
[11] 郑娇玲,邵高峰,沈晓冬.水性聚合物和化学外加剂协同作用对水泥砂浆强度的影响[J].南京工业大学学报(自然科学版),2014,36(2):14-20.
[12] 王孙睿.不同减水剂掺量对水泥体系流动收缩性及强度的影响研究[J].福建建材,2016(7):22-24,107.
[13] 元强,邓德华,张文恩,等.粉煤灰掺量、水胶比对砂浆流动度和强度的影响[J].粉煤灰,2005(1):7-9.
[14] 董军,季韬,林旭健,等.水胶比对加固砂浆界面剂粘结强度的影响[C]//第15届全国结构工程学术会议.焦作:全国结构工程学术会议论文集(第Ⅱ册),2006:23-26.
[15] 刘一槿,张健,杨国明.水胶比对GRC抗弯强度和韧性的影响[J].广东建材,2020,36(6):27-29.
[16] KONG X M,WU C C,ZHANG Y R,et al.Polymer-modified Mortar with A Gradient Polymer Distribution: Preparation, Permeability, and Mechanical Behaviour[J].Construction and Building Materials,2013(38):195-203.
[17] MA H Y,LI Z J.Microstructures and Mechanical Properties of Polymer Modified Mortars Under Distinct Mechanisms[J].Construction and Building Materials,2013(47):579-587.
[18] 马建斌.早强剂对修补砂浆力学性能和黏结性能的影响研究[J].混凝土与水泥制品,2019(11):74-77.
[19] 李文婷.新型水泥基自流平修补砂浆的研究[D].重庆:重庆大学,2007.
[20] 阮雪琴,谷伟.聚合物乳液对水泥砂浆力学性能的影响[J].混凝土与水泥制品,2017(1):67-69.
[21] 陈宗瑞,周阳,李相国.消泡剂对水性环氧树脂改性水泥砂浆的性能影响[J].硅酸盐通报,2019,38(4):1045-1049,1061.

上一个

基于ANSYS的配筋UHPC梁数值仿真分析

下一个

减缩剂对超高性能混凝土性能的影响研究

头部文案

水泥基自密实修复砂浆的制备及性能研究

相关文件