|Table of Contents|

Effect of Anti-cracking Admixture on Sulfate Corrosion Behavior of Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2021年02期
Page:
108-116
Research Field:
Publishing date:

Info

Title:
Effect of Anti-cracking Admixture on Sulfate Corrosion Behavior of Concrete
Author(s):
JIANG Jian-hua;  LIN Ming-yi;  QIU Jia-qi
College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, Jiangsu, China
Keywords:
concrete;  anti-cracking admixture;  sulfate corrosion;  quality change;  corrosion depth;  water absorption characteristics
PACS:
TU503
DOI:
10.19815/j.jace.2020.07077
Abstract:
In order to understand the effect of anti-cracking admixture on the durability of concrete, considering the different contents and types of anti-cracking admixture, the changes of concrete quality, corrosion depth and compressive strength with corrosion age after sulfate corrosion were studied, and the difference of sulfate corrosion damage degree of concrete was studied by water absorption test. The results show that the quality change after corrosion can be divided into three stages, namely, growth, stability and significant decline. The change rules of corrosion depth of concrete specimens with different anti-crack additives are different. Compared with UEA expansive agent, the HME-V anti-cracking agent with the same content has better sulfate corrosion resistance under long corrosion age. The concrete with UEA expansive agent appears expansion failure after 90 d, which leads to the accelerated corrosion rate. The concrete with HME-V anti-cracking agent has no expansion failure, and keeps the same corrosion rate. At the same content of admixture, the strength of concrete with HME-V anti-cracking agent is higher than that with UEA expansive agent after sulfate corrosion. The water absorption of the corrosion layer is large due to the looser structure compared with the non-corrosion layer, and the water absorption of the surface layer increases with the increase of the corrosion degree. The surface corrosion damage degree of concrete with HME-V is less than that with UEA expansive agent. In general, HME-V anti-cracking agent with the same amount of admixture have better sulfate corrosion resistance than UEA expansion agent.

References:

[1] 王 伟,杨德斌,刘志前.掺膨胀剂混凝土抗硫酸盐侵蚀性能研究[J].水利与建筑工程学报,2008,6(3):117-118,123.
WANG Wei,YANG De-bin,LIU Zhi-qian.Research on Sulfate Attack Resistance of Concrete with Expansive Admixture[J].Journal of Water Resources and Architectural Engineering,2008,6(3):117-118,123.
[2]高培伟,吴胜兴,林萍华,等.硫酸盐对碾压混凝土侵蚀开裂的机理微观分析[J].水利学报,2005,36(3):360-364.
GAO Pei-wei,WU Sheng-xing,LIN Ping-hua,et al.Microstructure Analysis on Mechanism of Sulfate Attack on RCC[J].Journal of Water Resources,2005,36(3):360-364.
[3]PARK J J,YOO D Y,KIM S W,et al.Drying Shrinkage Cracking Characteristics of Ultra-high-performance Fibre Reinforced Concrete with Expansive and Shrinkage Reducing Agents[J].Magazine of Concrete Research,2013,65(4):248-256.
[4]MIGUEL J O,ANTONIO B R,FERNANDO G B.Combined Effect of Expansive and Shrinkage Reducing Admixtures to Control Autogenous Shrinkage in Self-compacting Concrete[J].Construction and Building Materials,2014,52:267-275.
[5]MO L W,DENG M,TANG M S.Effects of Calcination Condition on Expansion Property of MgO-type Expansive Agent Used in Cement-based Materials[J].Cement and Concrete Research,2010,40(3):437-446.
[6]AHN J K,PARK K T,KWON S J.Evaluation of Crack Resistant Performance in Cement Mortar with Steel Fiber and CSA Expansion Admixture[J].Journal of the Korea Institute for Structural Maintenance and Inspection,2014,18(3):125-132.
[7]LIU S H,FANG K H,LI Z.Influence of Mineral Admixtures on Crack Resistance of High Strength Concrete[J].Key Engineering Materials,2006,302-303:150-154.
[8]张巨松,韩自博,王立巍,等.抗裂防水剂与矿物掺合料复合对混凝土Cl-扩散系数的影响[J].沈阳建筑大学学报:自然科学版,2009,25(5):948-953,958.
ZHANG Ju-song,HAN Zi-bo,WANG Li-wei,et al.The Study on the Effect of Compound of the Crack-resistance Waterproofing Agent and Mineral Admixtures to Concrete Chloride-ion-diffusion-coefficient[J].Journal of Shenyang Jianzhu University:Natural Science,2009,25(5):948-953,958.
[9]LEE J S,NOH W H.Admixture for Cement Mortar Having Crack Resistance and Cement Mortar Including the Same:US,US20120006233A1[P].2012-01-12.
[10]杨 勇,张建纲,严 涵,等.超早强外加剂在混凝土中的性能研究[J].混凝土与水泥制品,2017(5):11-15.
YANG Yong,ZHANG Jian-gang,YAN Han,et al.Study on Performance of Super Early Strength Admixture in Concrete[J].China Concrete and Cement Products,2017(5):11-15.
[11]杜迎东,王起才,张戎令,等.复掺外加剂体系对低水胶比混凝土强度及耐久性影响试验研究[J].铁道科学与工程学报,2016,13(4):654-661.
DU Ying-dong,WANG Qi-cai,ZHANG Rong-ling,et al.Experience Study on Impact of Strength and Durability of Compound Admixture System of Low Water-binder Ratio Concrete[J].Journal of Railway Science and Engineering,2016,13(4):654-661.
[12]冯小忠,刘胜松,唐修生,等.水工混凝土抗硫酸盐侵蚀性能改善研究[J].混凝土,2014(5):41-43,48.
FENG Xiao-zhong,LIU Sheng-song,TANG Xiu-sheng,et al.Improvements of Sulfate Attack Resistant Property of Hydraulic Concrete[J].Concrete,2014(5):41-43,48.
[13]高培伟,吴胜兴,林萍华,等.含膨胀剂的碾压混凝土抗硫酸盐侵蚀机理与理论模型[J].水力发电学报,2006,25(1):90-93,84.
GAO Pei-wei,WU Sheng-xing,LIN Ping-hua,et al.Mechanism and Model of Sulfate Attack on RCC with Expansive Agent[J].Journal of Hydroelectric Engineering,2006,25(1):90-93,84.
[14]王家滨,牛荻涛,马 蕊.硫酸盐侵蚀喷射混凝土损伤层及微观结构研究[J].武汉理工大学学报,2014,36(10):105-112.
WANG Jia-bin,NIU Di-tao,MA Rui.Study on Damage Layer and Microstructure of Shotcrete After Sulfate Attack[J].Journal of Wuhan University of Technology,2014,36(10):105-112.
[15]OULD NAFFA S,GOUEYGOU M,PIWAKOWSKI B,et al.Detection of Chemical Damage in Concrete Using Ultrasound[J].Ultrasonics,2002,40(1-8):247-251.
[16]张风杰,袁迎曙,杜健民.硫酸盐腐蚀混凝土构件损伤检测研究[J].中国矿业大学学报,2011,40(3):373-378.
ZHANG Feng-jie,YUAN Ying-shu,DU Jian-min.Ultrasonic Detection in Concrete Structures of Damage from Sulfate Attack[J].Journal of China University of Mining & Technology,2011,40(3):373-378.
[17]张晓辉,董利华.UEA膨胀剂在大体积混凝土中的应用[J].建设科技,2011(23):87-88.
ZHANG Xiao-hui,DONG Li-hua.Application of UEA Expansive Agent in Mass Concrete[J].Construction Science and Technology,2011(23):87-88.
[18]吴钟瑾,刘斌云,邢振贤.硫铝酸盐类膨胀剂的理论研究与应用[J].水利水电技术,1998,29(6):15-19.
WU Zhong-jin,LIU Bin-yun,XING Zhen-xian.Theoretic Study of Sulphoaluminous Expansion Agent and Its Application[J].Water Resources and Hydropower Engineering,1998,29(6):15-19.
[19]WANG K J,JANSEN D C,SHAH S P.Permeability Study of Cracked Concrete[J].Cement and Concrete Research,1997,27(3):381-393.
[20]李 鹏.HCSA膨胀剂补偿高强混凝土收缩及影响因素研究[D].重庆:重庆大学,2016.
LI Peng.Study on Shrinkage Compensation and Influence Factors of High Strength Concrete[D].Chongqing:Chongqing University,2016.

Memo

Memo:
-
Last Update: 2021-03-20