直接电养护对混凝土力学性能的影响_《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



直接电养护对混凝土力学性能的影响

Effect of Direct Electric Curing on the Mechanical Properties of Concrete

2023年第6期

直接电养护；热养护；欧姆热；抗压强度；电压；电流

Direct electric curing; Heat curing; Ohmic heat; Compressive strength; Voltage; Current

2023年第6期

10.19761/j.1000-4637.2023.06.006.05

国家自然科学基金面上项目（52178261）；国家自然科学基金重大项目（11790283）。

杨智涵，贺炯煌，谢友均，龙广成，王凡

中南大学土木工程学院，湖南长沙 410075

杨智涵，贺炯煌，谢友均，龙广成，王凡

杨智涵,贺炯煌,谢友均,等.直接电养护对混凝土力学性能的影响[J].混凝土与水泥制品,2023(6):6-10.

YANG Z H,HE J H,XIE Y J,et al.Effect of Direct Electric Curing on the Mechanical Properties of Concrete[J].China Concrete and Cement Product,2023(6):6-10.

浏览量:

1000

摘要：为研究直接电养护（DEC）对混凝土力学性能的影响，采用交流电场，进行了不同养护电压对纯水泥混凝土和粉煤灰混凝土抗压强度、内部温度以及内部电流的影响试验研究。结果表明：各组混凝土的早期抗压强度基本随养护电压的增大而增加，而后期抗压强度则基本相反；20 V电压下DEC纯水泥混凝土和粉煤灰混凝土内部峰值温度分别达到69.4 ℃、60.3 ℃，1 d抗压强度显著提升，相较于标养组分别提高了22.8%、37.0%；掺入粉煤灰提升了混凝土的电阻率，需要更高的电压才能达到等同纯水泥混凝土的养护温度；各组混凝土的内部电流大体呈先增加后降低的趋势，并随养护电压的增大而增加，说明DEC对早期混凝土的加热效率高于后期。 Abstract: In order to study the influence of direct electric curing on the mechanical properties of concrete, the influence of different curing voltages on the compressive strength, internal temperature and internal current of pure cement concrete and fly ash concrete was studied by using AC electric field. The results show that the early compressive strength of each group of concrete basically increases with the increase of curing voltage, while the late compressive strength is basically opposite. Under 20 V voltage, the internal peak temperatures of DEC pure cement concrete and fly ash concrete reach 69.4 ℃ and 60.3 ℃ respectively, and the 1 d compressive strength of DEC pure cement concrete and fly ash concrete are increased by 22.8% and 37.0% respectively compared with the standard curing group. Adding fly ash increases the resistivity of concrete, which requires higher voltage to reach the curing temperature of pure cement concrete. The internal current of each group of concrete generally increases first and then decreases, and increases with the increase of curing voltage, indicating that the heating efficiency of DEC on early concrete is higher than that of late concrete.

英文名 : Effect of Direct Electric Curing on the Mechanical Properties of Concrete

刊期 : 2023年第6期

关键词 : 直接电养护；热养护；欧姆热；抗压强度；电压；电流

Key words : Direct electric curing; Heat curing; Ohmic heat; Compressive strength; Voltage; Current

刊期 : 2023年第6期

DOI : 10.19761/j.1000-4637.2023.06.006.05

文章编号 :

基金项目 : 国家自然科学基金面上项目（52178261）；国家自然科学基金重大项目（11790283）。

作者 : 杨智涵，贺炯煌，谢友均，龙广成，王凡

单位 : 中南大学土木工程学院，湖南长沙 410075

杨智涵，贺炯煌，谢友均，龙广成，王凡

杨智涵,贺炯煌,谢友均,等.直接电养护对混凝土力学性能的影响[J].混凝土与水泥制品,2023(6):6-10.

YANG Z H,HE J H,XIE Y J,et al.Effect of Direct Electric Curing on the Mechanical Properties of Concrete[J].China Concrete and Cement Product,2023(6):6-10.





摘要

参数

结论

参考文献

引用本文

Abstract: In order to study the influence of direct electric curing on the mechanical properties of concrete, the influence of different curing voltages on the compressive strength, internal temperature and internal current of pure cement concrete and fly ash concrete was studied by using AC electric field. The results show that the early compressive strength of each group of concrete basically increases with the increase of curing voltage, while the late compressive strength is basically opposite. Under 20 V voltage, the internal peak temperatures of DEC pure cement concrete and fly ash concrete reach 69.4 ℃ and 60.3 ℃ respectively, and the 1 d compressive strength of DEC pure cement concrete and fly ash concrete are increased by 22.8% and 37.0% respectively compared with the standard curing group. Adding fly ash increases the resistivity of concrete, which requires higher voltage to reach the curing temperature of pure cement concrete. The internal current of each group of concrete generally increases first and then decreases, and increases with the increase of curing voltage, indicating that the heating efficiency of DEC on early concrete is higher than that of late concrete.

扫二维码用手机看

[1] ZEYAD A M,TAYEH B A,ADESINA A,et al.Review on Effect of Steam Curing on Behavior of Concrete[J].Cleaner Materials,2022,3:100042.
[2] CECINI D,AUSTIN S A,CAVALARO S,et al.Accelerated Electric Curing of Steel-Fibre Reinforced Concrete[J].Construction and Building Materials,2018,189:192-204.
[3] MEMON S A,SHAH S F A,KHUSHNOOD R A,et al.Durability of Sustainable Concrete Subjected to Elevated Temperature—A Review[J].Construction and Building Materials,2019,199:435-455.
[4] KAFRY I D.Direct Electric Curing of Concrete: Basic Design[M].Scotland:Whittles Publishing,1993.
[5] SAKR M,LIU S.A Comprehensive Review On Applicationsof Ohmic Heating(OH)[J].Renewable and Sustainable Energy Reviews,2014,39:262-269.
[6] YANG Z H,XIE Y J,HE J H,et al.Experimental Investigation on Mechanical Strength And Microstructure of Cement Paste by Electric Curing with Different Voltage and Frequency[J].Construction and Building Materials,2021,299:123615.
[7] WADHWA S S,SRIVASTAVA L K,GAUTAM D K,et al.Direct Electric Curing of In Situ Concrete[J].Building Research and Information,1987,15:97-101.
[8] WILSON J G,GUPTA N K.Equipment for The Investigation of The Accelerated Curing of Concrete Using Direct Electrical Conduction[J].Measurement,2004,35(3):243-250.
[9] WILSON J G,GUPTA N K.Analysis of Power Distribution in Reinforced Concrete During Accelerated Curing Using Electroheat[J].IEE Proceedings-Electric Power Applications,1996,143(2):172-176.
[10] BATYUK M I,GNYRYA A I,USHAKOV V Y,et al.Rapid Direct Electric Heating of Fresh Concrete[C]//The XVIII International Conference on Prospects of Fundamental Sciences Development(PFSD 2021).Journal of Physics Conference Series.Russia:IOP Publishing,2021:012024.
[11] LIU Y,WANG M,WANG W.Electric Induced Curing of Graphene/Cement-Based Composites for Structural Strength Formation in Deep-Freeze Low Temperature[J].Materials and Design,2018,160:783-793.
[12] LIU Y,TIAN W,WANG M,et al.Rapid Strength Formation of On-Site Carbon Fiber Reinforced High-Performance Concrete Cured by Ohmic Heating[J].Construction and Building Materials,2020,244:118344.
[13] TIAN W,LIU Y,QI B,et al.Enhanced Effect of Carbon Nanofibers on Heating Efficiency of Conductive Cementitious Composites Under Ohmic Heating Curing[J].Cement and Concrete Composites,2021,117:103904.
[14] MA C,PENG J,ZHOU H,et al.An Effective Method for Preparing High Early-Strength Cement-Based Materials: The Effects of Direct Electric Curing on Portland Cement[J].Journal of Building Engineering,2021,43:102485.
[15] UYGUNOGLU T,HOCAOGLU I.Effect of Electrical Curing Application on Setting Time of Concrete with Different Stress Intensity[J].Construction and Building Materials,2018,162:298-305.
[16] XIAO Q,LONG G,FENG R,et al.Effect of Alternating Current Field on Rheology of Fresh Cement-Based Pastes[J].Journal of Building Engineering,2022,48:103771.
[17] LIU B J,XIE Y J,ZHOU S Q,et al.Some Factors Affecting Early Compressive Strength of Steam-Curing Concrete with Ultrafine Fly Ash[J].Cement and Concrete Research,2001,31(10):1455-1458.
[18] XIANG Y,LONG G,XIE Y,et al.Thermal Damage and Its Controlling Methods of High-Speed Railway Steam-Cured Concrete: A Review[J].Structural Concrete,2021,22:1074-1092.
[19] 苏扬,徐志辉,丑纪能,等.蒸养制度对预制构件混凝土早期强度的影响研究[J].混凝土与水泥制品,2019(3):48-50.
[20] 贺炯煌,马昆林,龙广成,等.蒸汽养护过程中混凝土力学性能的演变[J].硅酸盐学报,2018,46(11):1584-1592.
[21] 邱玉深.对混凝土养护方法的思考与建议[J].混凝土与水泥制品,2009(2):5-9.
[22] XIAO L Z,LI Z J.Early-Age Hydration of Fresh Concrete Monitored by Non-Contact Electrical Resistivity Measurement[J].Cement and Concrete Research,2008,38(3):312-319.
[23] 马昆林,龙广成,谢友均.蒸养混凝土轨道板劣化机理研究[J].铁道学报,2018,40(8):116-121.
[24] 马昆林,贺炯煌,龙广成,等.蒸养温度效应及其对水泥基材料热伤损的影响[J].材料导报,2017,31(23):171-176.
[25] YANG Z H,XIE Y J,HE J H,et al.A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing[J].Materials,2021,14(23):1-17.
[26] 杨智涵,贺炯煌,谢友均,等.直接电养护水泥浆体温升的影响因素及机理[J/OL].铁道科学与工程学报,2022.[2022-10-31].https://doi.org/10.19713/j.cnki.43-1423/u.T20221199.

上一个

有机膦缓凝剂的合成及其性能研究

下一个

低胶凝材料自密实混凝土的制备及性能研究

头部文案

直接电养护对混凝土力学性能的影响

相关文件