Effect of Nano-silica on the Setting and Hardening Process of Styrene-acrylic Ester/Cement Composite Cementitious Material
WANG Ru1,2, WAN Qin1, WANG Gaoyong1
1 School of Materials Science and Engineering, Tongji University, Shanghai 201804 2 Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804
Abstract: To solve the problem of retardation existing in the setting and hardening process of styrene-acrylic ester/cement (SAE-cement) composite cementitious material, nano-silica served as setting modifying admixture in this work. By measuring the setting time and initial strength of nano-silica modified SAE-cement composite cementitious material, the effect of nano-silica on the setting and hardening process of composite cementitious material was analyzed. To explore the work mechanism of nano-silica, the hydration heat of nano-silica modified SAE-cement composite cementitious material was determined by isothermal calorimetry, and its hydration products were examined by X-ray diffraction. The results show that the addition of nano-silica can effectively promote the setting and hardening process of composite cementitious materials, and the effect of 1.25% dosages is the most significant. It also indicates that adding nano-silica accelerates the formation of ettringite and calcium hydroxide by promoting the hydration of tricalcium aluminate and tricalcium silicate, shortens the hydration induction period and acceleration period of the composite cementitious material, accelerates the hydration process, thereby shortening the setting time and increasing the early strength.
作者简介: 王茹,同济大学教授,博士研究生导师。2003年毕业于四川大学获材料学专业博士学位,先后在同济大学和奥地利维也纳工业大学进行博士后研究工作,回国后在同济大学工作至今。其中2010—2011年在美国哥伦比亚大学土木工程与工程力学系进行访问。主要从事聚合物水泥基复合材料的基础理论和工程应用研究,重点研究聚合物改性水泥基材料的化学反应过程,探讨其与材料微观结构演变的关系和对材料物理力学性能的影响规律,并从科学、安全、环保等角度提出合理利用聚合物制备建筑用新型水泥基功能材料的可行性。在国家自然科学基金等科学基金的资助下,在该研究领域取得了丰硕的成果,她先后发表聚合物水泥基复合材料相关学术论文100余篇,其中多数被SCI和EI收录;主编Progress in Polymers in Concrete,合编《干混砂浆原材料及产品检测方法》,参编《商品砂浆》等著作。研究的新发现和新见解引起国际同行的关注,多次受邀在国际学术会议上作特邀报告和主题报告,受任国际聚合物混凝土学会理事会多年。2018年,她荣获了国际聚合物混凝土学会颁发的“欧文纳特奖”(Owen Nutt Award),并被推选为国际聚合物混凝土学会理事会副理事长。
引用本文:
王茹,万芹,王高勇. 纳米二氧化硅对苯丙共聚物/水泥复合胶凝材料凝结硬化的影响[J]. 材料导报, 2019, 33(22): 3712-3719.
WANG Ru, WAN Qin, WANG Gaoyong. Effect of Nano-silica on the Setting and Hardening Process of Styrene-acrylic Ester/Cement Composite Cementitious Material. Materials Reports, 2019, 33(22): 3712-3719.
Shi H X, Kong X M, Fan D K, et al. Building Decoration Materials World, 2010(9),60(in Chinese).师海霞, 孔祥明, 范德科,等.混凝土世界, 2010(9),60.
[2]
Zhu M S. Technology Wind, 2010(19),224(in Chinese).朱明胜.科技风, 2010(19),224.
[3]
Wang P M, Liu E G. Journal of Building Materials, 2009, 12(3),253(in Chinese).王培铭, 刘恩贵.建筑材料学报, 2009, 12(3),253.
[4]
Kong X, Li Q. Journal of the Chinese Ceramic Society, 2009, 37(1),107.
[5]
Wang R, Wang P. Materials & Structures, 2010, 43(4),443.
[6]
Pang Z K, Zhang J. China Building Waterproofing, 2015(12),7(in Chinese).潘正凯, 张军.中国建筑防水, 2015(12),7.
[7]
Zhang S, Li G Z, Ning C. Advanced Materials Research, 2011, 194-196,1022.
[8]
Zhang S, Yu Y, Ning C, et al. China Concrete and Cement Products, 2010(2),9(in Chinese).张水, 于洋, 宁超,等.混凝土与水泥制品, 2010(2),9.
[9]
Xing X G, Bai E L, Wang Y X. Bulletin of the Chinese Ceramic Society, 2018(4),1174 (in Chinese).邢小光, 白二雷, 王谕贤.硅酸盐通报, 2018(4),1174.
[10]
He X Y. Mortar Subgrade Engineering, 2017(4),136(in Chinese).贺晓宇.路基工程, 2017(4),136.
[11]
Zhang H B, Wang C, Li D L, et al. Bulletin of the Chinese Ceramic So-ciety, 2014, 33(1),164(in Chinese).张洪波, 王冲, 李东林,等.硅酸盐通报, 2014, 33(1),164.
[12]
Wang R, Wang P M. Journal of Building Materials, 2008, 11(4),464(in Chinese).王茹, 王培铭.建筑材料学报, 2008, 11(4),464.
[13]
Shi B, Deng P, Xing X. In: 2nd International Conference on Civil Engineering and Rock Engineering. Guangzhou, 2017, pp. 225.
[14]
Zhong S Y, Tan M H, Chen Z Y. Journal of Building Materials, 2002, 5(4),393(in Chinese).钟世云, 谈慕华, 陈志源.建筑材料学报, 2002, 5(4),393.
[15]
Gemert D V, Beeldens A. Advanced Materials Research, 2013, 687,291.
[16]
Lu Z C, Kong X M, Zhang Q, et al. Colloids & Surfaces A Physicochemical & Engineering Aspects, 2016, 507,46.
[17]
Wang R, Li J, Zhang T, et al. Bulletin of the Polish Academy of Sciences Technical Sciences, 2016, 64(4),785.
[18]
Kong X M, Emmerling S, Pakusch J, et al. Cement & Concrete Research, 2015, 75,23.
[19]
Wang R, Yao L J, Wang P M. Construction & Building Materials, 2013, 41(41),538.
[20]
Wang R, Shi X X. Advances in Materials Science & Engineering, 2014, 2014(4),1.
[21]
Lu Z C, Kong X M, Zhang C Y, et al. Construction & Building Mate-rials, 2017, 155,1147.
[22]
Wang R, Wang G Y. Construction & Building Materials, 2016, 125, 757.
[23]
Thomas J J, Jennings H M, Chen J J. The Journal of Physical Chemistry C, 2009, 113(11), 4327.
[24]
Land G, Stephan D. Journal of Materials Science, 2012, 47(2),1011.
[25]
Rupasinghe M, Nicolas R S, Mendis P, et al. In: 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23). Byron Bay, 2014, pp. 131.
[26]
Bosque I F S D, Ramírez S M, Blancovarela M T. Materiales De Construcción, DOI: 10.3989/mc.2015.06814
[27]
Senff L, Labrincha J A, Ferreira V M, et al. Construction & Building Materials, 2009, 23(7),2487.
[28]
Madani H, Bagheri A, Parhizkar T. Cement & Concrete Research, 2012, 42(12),1563.
[29]
Xu X, Lu Z Y. Journal of Nanjing University of Technology (Natural Science Edition), 2007, 29(4), 45(in Chinese).徐迅, 卢忠远.南京工业大学学报(自然科学版), 2007, 29(4), 45.
[30]
Fan J J, Sun Z H, Chen R G, et al. Journal of Guangxi University: Na-tural Science Edition, 2009, 34(2), 158(in Chinese).范基骏, 孙中华, 陈日高,等.广西大学学报(自然科学版), 2009,34(2), 158.
[31]
Kong X M, Lu Z C, Zhang C Y. Journal of the Chinese Ceramic Society, 2017, 45(2), 274(in Chinese).孔祥明, 卢子臣, 张朝阳.硅酸盐学报, 2017, 45(2), 274.
Wang P M, Feng S X, Liu X P. Journal of Building Materials, 2005, 8(6), 646(in Chinese).王培铭, 丰曙霞, 刘贤萍.建筑材料学报, 2005, 8(6), 646.
[34]
Yang N R, Yue W H. Handbook of a collection of illustrative plates of inorganic nonmetal materials, Wuhan University of Technology Press, China, 2000(in Chinese).杨南如, 岳文海. 无机非金属材料图谱手册, 武汉工业大学出版社, 2000.
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2019, Vol. 33 
