低活性矿渣内养护水泥砂浆自收缩与电阻率的关系

杜玉会; 李双喜

doi:10.11835/j.issn.2096-6717.2021.238

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低活性矿渣内养护水泥砂浆自收缩与电阻率的关系

土木工程 | 更新时间：2023-11-21

- 低活性矿渣内养护水泥砂浆自收缩与电阻率的关系
- Relationship between autogenous shrinkage and resistivity of cement mortar internal cured with low active slag
- 土木与环境工程学报 2023年45卷第6期页码：173-179
- 作者机构：
  
  新疆农业大学水利与土木工程学院
  新疆水利工程安全与水灾害防治重点实验室，乌鲁木齐 830052
- 作者简介：
  
  杜玉会（1996- ），女，主要从事高性能混凝土研究，E-mail：2609651039@qq.com。
  李双喜（通信作者），男，副教授，E-mail：xjlsx123@126.com。
- 基金信息：
  
  新疆自然科学基金(2019D01A46);2021年自治区研究生科研创新项目(XJ2021G163)
- DOI：10.11835/j.issn.2096-6717.2021.238
  中图分类号： TU525.9
- 收稿：2021-07-07，
  
  纸质出版：2023-12-25
- 稿件说明：
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杜玉会,李双喜.低活性矿渣内养护水泥砂浆自收缩与电阻率的关系[J].土木与环境工程学报,2023,45(06):173-179.

DU Yuhui,LI Shuangxi.Relationship between autogenous shrinkage and resistivity of cement mortar internal cured with low active slag[J].Journal of Civil and Environmental Engineering,2023,45(06):173-179.
杜玉会,李双喜.低活性矿渣内养护水泥砂浆自收缩与电阻率的关系[J].土木与环境工程学报,2023,45(06):173-179. DOI： 10.11835/j.issn.2096-6717.2021.238.

DU Yuhui,LI Shuangxi.Relationship between autogenous shrinkage and resistivity of cement mortar internal cured with low active slag[J].Journal of Civil and Environmental Engineering,2023,45(06):173-179. DOI： 10.11835/j.issn.2096-6717.2021.238.

摘要

以预吸水低活性矿渣替代细集料作为内养护材料，研究低活性矿渣内养护砂浆自收缩与电阻率的变化规律，揭示两者的关系。结果表明：随着低活性矿渣掺量的增加，砂浆早期强度降低幅度大，随着龄期的延长，砂浆中后期强度降低幅度小于早期，建议低活性矿渣的合适掺量取为细集料质量的15%~25%；低活性矿渣内养护对砂浆电阻率发展影响明显，凝结硬化前，浆体电阻率随低活性矿渣掺量的增大而增大；凝结硬化后，浆体电阻率随低活性矿渣掺量的增大而减小；低活性矿渣内养护能有效抑制浆体各阶段的自收缩，尤其在快速收缩阶段和短暂膨胀阶段作用最为明显，同时，36 h龄期后电阻率与自收缩有很好的对应关系，可通过电阻率发展趋势预测自收缩的变化情况。

Abstract

Using pre-absorbent low active slag as internal curing material instead of fine aggregate

the autogenous shrinkage and resistivity variation of low active slag internal curing mortar were studied

and the relationship between them was revealed. The results show that with increase of low active slag content

the early strength of mortar decreases greatly

with the extension of age

the strength reduction in the middle and late stages of mortar is smaller than that in the early stage. It is suggested that the appropriate content of low-activity slag is 15%-25% of the fine aggregate quality. The internal curing of low active slag has obvious influence on the resistivity development of mortar. Before setting hardening

the resistivity of mortar increases with the increase of low active slag content. After it

the slurry resistivity decreases with the increase of low active slag content. The internal curing of low active slag can effectively inhibit the autogenous shrinkage at various stages of the slurry

especially in the rapid shrinkage stage and transient expansion stage. At the same time

the resistivity after 36 h has a good correlation with autogenous shrinkage

and the change of autogenous shrinkage can be predicted by the development trend of resistivity.

关键词

Keywords

references

DING H Y , ZHANG L , ZHANG P Y . Factors influencing strength of super absorbent polymer (SAP) concrete [J]. Transactions of Tianjin University , 2017 , 23 ( 3 ): 245 - 257 .

安明喆 , 韩松 , 王月 , 等 . 桥塔用内养护高强度抗裂混凝土性能研究 [J]. 铁道建筑 , 2020 , 60 ( 1 ): 44 - 48 .

AN M Z , HAN S , WANG Y , et al . Study on performance of high strength crack resistant concrete with internal curing for bridge pylons [J]. Railway Engineering , 2020 , 60 ( 1 ): 44 - 48 . (in Chinese)

DE MEYST L , MANNEKENS E , VAN TITTELBOOM K , et al . The influence of superabsorbent polymers (SAPs) on autogenous shrinkage in cement paste, mortar and concrete [J]. Construction and Building Materials , 2021 , 286 : 122948 .

邓宗才 , 连怡红 , 赵连志 . 膨胀剂、减缩剂对超高性能混凝土自收缩性能的影响 [J]. 北京工业大学学报 , 2021 , 47 ( 1 ): 61 - 69 .

DENG Z C , LIAN Y H , ZHAO L Z . Influence of expansion agent and shrinkage reducing agent on autogenous shrinkage of UHPC [J]. Journal of Beijing University of Technology , 2021 , 47 ( 1 ): 61 - 69 . (in Chinese)

李飞 , 詹炳根 . 内养护剂、膨胀剂、减缩剂对高强混凝土早期收缩的影响 [J]. 合肥工业大学学报(自然科学版) , 2016 , 39 ( 9 ): 1254 - 1259 .

LI F , ZHAN B G . Influence of super absorbent polymer, expansion agent and shrinkage reducing agent on early autogenous shrinkage of high-strength concrete [J]. Journal of Hefei University of Technology (Natural Science) , 2016 , 39 ( 9 ): 1254 - 1259 . (in Chinese)

徐彬彬 , 欧忠文 , 罗伟 , 等 . 饱水轻骨料和减缩剂对UHPC水化过程和自收缩的影响 [J]. 材料导报 , 2020 , 34 ( 22 ): 22065 - 22069 .

XU B B , OU Z W , LUO W , et al . Effect of saturated lightweight aggregate and SRA on the hydration process and autogenous shrinkage of UHPC [J]. Materials Reports , 2020 , 34 ( 22 ): 22065 - 22069 . (in Chinese)

刘路明 , 方志 , 黄政宇 , 等 . 膨胀剂与内养剂对超高性能混凝土性能的影响 [J]. 硅酸盐学报 , 2020 , 48 ( 11 ): 1706 - 1715 .

LIU L M , FANG Z , HUANG Z Y , et al . Effects of expansive agent and super-absorbent polymer on performance of ultra-high performance concrete [J]. Journal of the Chinese Ceramic Society , 2020 , 48 ( 11 ): 1706 - 1715 . (in Chinese)

钟佩华 . 高吸水性树脂(SAP)对高强混凝土自收缩性能的影响及作用机理 [D]. 重庆 : 重庆大学 , 2015 .

ZHONG P H . Study on the autogenous shrinkage and mechanism of high strength concrete with super absorbent polymer [D]. Chongqing : Chongqing University , 2015 . (in Chinese)

FARZANIAN K , VAFAEI B , GHAHREMANINEZHAD A . The behavior of superabsorbent polymers (SAPs) in cement mixtures with glass powders as supplementary cementitious materials [J]. Materials (Basel, Switzerland) , 2019 , 12 ( 21 ): 3597 .

SHEN D J , FENG Z Z , KANG J C , et al . Effect of Barchip fiber on stress relaxation and cracking potential of concrete internally cured with super absorbent polymers [J]. Construction and Building Materials , 2020 , 249 : 118392 .

WANG P J , CHEN H M , CHEN P Y , et al . Effect of internal curing by super absorbent polymer on the autogenous shrinkage of alkali-activated slag mortars [J]. Materials , 2020 , 13 ( 19 ): 4318 .

GE Z , FENG Y J , ZHANG H Z , et al . Use of recycled fine clay brick aggregate as internal curing agent for low water to cement ratio mortar [J]. Construction and Building Materials , 2020 , 264 : 120280 .

马先伟 , 项建平 , 王继娜 , 等 . SAP对高性能水泥基材料水化及性能的影响 [J]. 材料科学与工程学报 , 2019 , 37 ( 6 ): 946 - 952 .

MA X W , XIANG J P , WANG J N , et al . Effect of SAP,s particle size on properties and hydration of high performance cement-based materials [J]. Journal of Materials Science and Engineering , 2019 , 37 ( 6 ): 946 - 952 . (in Chinese)

袁英杰 , 郭为强 , 王坤林 , 等 . 预湿轻细骨料内养护混凝土微观结构与渗透性能 [J]. 公路交通科技 , 2019 , 36 ( 1 ): 22 - 30 .

YUAN Y J , GUO W Q , WANG K L , et al . Microstructure and permeability of internally cured concrete made with pre-wetted lightweight fine aggregate [J]. Journal of Highway and Transportation Research and Development , 2019 , 36 ( 1 ): 22 - 30 . (in Chinese)

ZHENG X , ZHANG J , DING X P , et al . Frost resistance of internal curing concrete with calcined natural zeolite particles [J]. Construction and Building Materials , 2021 , 288 : 123062 .

LIU K Z , YU R , SHUI Z H , et al . Influence of external water introduced by coral sand on autogenous shrinkage and microstructure development of Ultra-High Strength Concrete (UHSC) [J]. Construction and Building Materials , 2020 , 252 : 119111 .

黄成华 , 王培铭 , 孙家瑛 . 矿渣超量取代水泥高性能混凝土性能研究 [J]. 混凝土 , 2004 ( 2 ): 28 - 30, 42 .

HUANG C H , WANG P M , SUN J Y . Study on properties of HPC with excessive slag replacing parts of cement [J]. Concrete , 2004 ( 2 ): 28 - 30, 42 . (in Chinese)

丁红霞 . 大掺量矿渣粉-水泥基胶凝材料和混凝土性能及其优化的研究 [D]. 南京 : 河海大学 , 2007 .

DING H X . Study on the performance and optimization of high volume blast furnace slag powder cement based materials and concrete [D]. Nanjing : Hohai University , 2007 . (in Chinese)

朱蓓蓉 , 於林峰 , 张树青 , 等 . 矿渣代砂水泥砂浆及混凝土物理力学性能研究 [J]. 建筑材料学报 , 2008 , 11 ( 4 ): 386 - 391 .

ZHU B R , YU L F , ZHANG S Q , et al . Study on physical and mechanical performance of mortar and concrete containing blast furnace slag aggregates [J]. Journal of Building Materials , 2008 , 11 ( 4 ): 386 - 391 . (in Chinese)

石东升 , 李科 , 薛欣欣 , 等 . 不同养护条件下GBFS高强水泥基材料的力学性能 [J]. 建筑材料学报 , 2020 , 23 ( 5 ): 1046 - 1052 .

SHI D S , LI K , XUE X X , et al . Mechanical properties of GBFS high-strength cement-based materials under different curing conditions [J]. Journal of Building Materials , 2020 , 23 ( 5 ): 1046 - 1052 . (in Chinese)

YANG Y H , WU J C , ZHAO S W , et al . Effects of long-term super absorbent polymer and organic manure on soil structure and organic carbon distribution in different soil layers [J]. Soil and Tillage Research , 2021 , 206 : 104781 .

LIU H J , BU Y H , MA R , et al . High-strength metakaolin-based hollow-core microspheres as an internal curing agent for mitigation of autogenous shrinkage of well cement [J]. Construction and Building Materials , 2021 , 272 : 121970 .

LV Y , YE G , DE SCHUTTER G . Utilization of miscanthus combustion ash as internal curing agent in cement-based materials: Effect on autogenous shrinkage [J]. Construction and Building Materials , 2019 , 207 : 585 - 591 .

刘高鹏 , 廖宜顺 , 刘立军 , 等 . 苎麻纤维水泥基材料的力学性能与自收缩试验研究 [J]. 功能材料 , 2019 , 50 ( 7 ): 7176 - 7181 .

LIU G P , LIAO Y S , LIU L J , et al . Experimental study on mechanical properties and autogenous shrinkage of cement-based materials with ramie fiber [J]. Journal of Functional Materials , 2019 , 50 ( 7 ): 7176 - 7181 . (in Chinese)

韩宇栋 , 张君 , 王振波 . 预吸水轻骨料对高强混凝土早期收缩的影响 [J]. 硅酸盐学报 , 2013 , 41 ( 8 ): 1070 - 1078 .

HAN Y D , ZHANG J , WANG Z B . Influence of pre-wetted lightweight aggregate on early-age shrinkage of high strength concrete [J]. Journal of the Chinese Ceramic Society , 2013 , 41 ( 8 ): 1070 - 1078 . (in Chinese)

孔祥明 , 张珍林 . 高吸水性树脂对高强混凝土自收缩的减缩机理 [J]. 硅酸盐学报 , 2014 , 42 ( 2 ): 150 - 155 .

KONG X M , ZHANG Z L . Shrinkage-reducing mechanism of super-absorbent polymer in high-strength concrete [J]. Journal of the Chinese Ceramic Society , 2014 , 42 ( 2 ): 150 - 155 . (in Chinese)

闫东星 . 硬化水泥砂浆热膨胀系数影响因素 [J]. 湖南科技大学学报(自然科学版) , 2020 , 35 ( 3 ): 45 - 49 .

YAN D X . Study on influence parameters of thermal expansion coefficient of hardened mortar [J]. Journal of Hunan University of Science & Technology (Natural Science Edition) , 2020 , 35 ( 3 ): 45 - 49 . (in Chinese)

黄义建 . 混凝土内部水分迁移过程监测与收缩变形机理研究 [D]. 哈尔滨 : 哈尔滨工业大学 , 2015 .

HUANG Y J . Research on monitoring of water transportation in concrete and mechanism of shrinkage deformation [D]. Harbin : Harbin Institute of Technology , 2015 . (in Chinese)

乔墩 , 钱觉时 , 党玉栋 , 等 . 水分迁移引起的混凝土收缩与控制 [J]. 材料导报 , 2010 , 24 ( 17 ): 79 - 83, 95 .

QIAO D , QIAN J S , DANG Y D , et al . Characteristic and mitigation of concrete shrinkage related to moisture migration [J]. Materials Review , 2010 , 24 ( 17 ): 79 - 83, 95 . (in Chinese)

逄鲁峰 . 掺高吸水树脂内养护高性能混凝土的性能和作用机理研究 [D]. 北京 : 中国矿业大学（北京） , 2013 .

PANG L F . Study on the performance and mechanism of internal cuirng high-performance concrete with super absorbent polymer [D]. Beijing : China University of Mining and Technology (Beijing) , 2013 . (in Chinese)

左义兵 , 魏小胜 . 粉煤灰水泥浆体的电阻率与化学收缩及自收缩的相互关系 [J]. 重庆大学学报 , 2015 , 38 ( 4 ): 45 - 54 .

ZUO Y B , WEI X S . Relations among electrical resistivity, chemical shrinkage and autogenous shrinkage of fly ash cement pastes [J]. Journal of Chongqing University , 2015 , 38 ( 4 ): 45 - 54 . (in Chinese)

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