硅基材料和矿渣应用于水泥基材料的研究进展

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Abstract Cement-based materials are currently the most widely used building materials. In the actual application process, cement-based materials will be damaged and fail to meet the expected performance requirements. There are a large amount of Ca(OH)₂ crystals in the hydration pro-ducts, which affects the bonding between various cement hydration products, resulting in the reduction of cement-based materials performance. At home and abroad, how to enhance the performance of cement-based materials has become a hot issue in research, and it is necessary to find effective methods to enhance the performance of cement-based materials.
By referring to relevant literatures at home and abroad, it is found that fly ash, silica fume, nano-SiO₂ (SiO₂ as the main component of the three materials, these materials are collectively referred to as silicon-based materials) or slag are added into cement-based materials. Because of its pozzolanic reaction and filling effects, the performance of cement-based materials can be enhanced obviously. The content of Ca(OH)₂ in cement-based materials can be reduced by adding admixtures. Admixtures also can reduce its grain size, increase the amount of C-S-H gel, improve the porosity of cement-based materials, and improve its performance.
There are some glassy substances in the components of fly ash and slag, which can reduce the water consumption of cement paste and improve the workability. It has low pozzolanic activity, and the hydration rate of cement paste can be reduced by proper addition. The early strength of cement-based materials containing fly ash or slag is lower, and the later strength is higher. Silica fume and nano-SiO₂ have high pozzolanic activity, which can promote hydration, and the strength of cement-based materials can be greatly improved in the early stage, but the strength development is slow in the later stage. At the same time, it will increase the early shrinkage of cement-based materials and increase the risk of structural cracking. Different admixtures can produce synergistic enhancement effect. The compound modified cement-based materials with excellent properties can be obtained.
This article mainly introduces the application of silicon-based materials and slag in cement-based materials, and describes the research status and related aspects of cement-based materials in terms of mechanism of action, heat of hydration, strength, porosity, etc. The related problems in the current research are analyzed and summarized in order to provide some reference for the production of cement-based materials with excellent performance.

Key words： silicon based materials slags cement based materials reaction mechanism

Published: 16 July 2021

CLC number:	TU525
	TU528

Fund:National Natural Science Foundation of China( 51872137).

About author:: Shun Zhou is currently pursuing his MA.Sc. degree at the college of materials science and engineering, Nanjing Tech University under the supervision of Prof. Dongxu Li,his research has focused on the cement-based materials.Dongxu Li received his B.E. degree and MA.Sc. degrees from Zhejiang University in 1982 and 1985,respectively. In 1985, he received his Ph.D. degree from Nanjing Tech University. After finished his postdoctoral research at Zhejiang University in 2000, he is currently a full professor in Nanjing Tech University. He is mainly engaged in research on the physical and chemical principles of new alkaline gelling materials, environmentally compatible gelling materials and biological materials, and the comprehensive utilization of solid industrial waste. He undertook the national“973”project, and served as the project leader of the third project “Research on Performance-Adjusting Auxiliary Cementing Components ”. Energy-saving steel slag cement, one of his research results, had won the third prize of scientific and technological progress of the Ministry of Chemical Industry, the outstanding paper award of Jiangsu Province and the title of excellent instructor of postgraduate social practice. He has published more than 30 academic papers in important domestic and foreign journals in the past five years, and 9 papers have been included in SCI.

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Cite this article:

ZHOU Shun,ZHOU Han,LI Dongxu. Research Progress of Silicon-based Materials and Slag Applied to Cement-based Materials[J]. Materials Reports, 2021, 35(Z1): 284-287.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2021/V35/IZ1/284

1 Nochaiya T, Wongkeo W, Chaipanich A. Fuel, 2009, 89(3), 768.
2 Wei F J, Grutzeck M W, Roy D M. Pergamon, 1985, 15(1), 174.
3 Bentz D P, Jensen O M, Coats A M, et al. Cement and Concrete Research, 2000, 30(7), 1121.
4 李虹燕, 丁铸, 邢锋, 等. 混凝土, 2008(10), 54.
5 方萍, 孟祥银.粉煤灰综合利用, 1996(1), 30.
6 陆小黑, 刘焕成, 王彩萍. 粉煤灰综合利用, 2013(6), 28.
7 曹大伟. 玻璃, 2018, 45(8), 22.
8 Rao G A. Cement and Concrete Research, 2003, 33(11), 1765.
9 刘军, 李瑶, 崔云鹏, 等. 沈阳建筑大学学报(自然科学版), 2013, 29(6), 1065.
10 Madhurima B, Venkatanarayanan H K. Construction and Building Mate-rials, 2018, 188, 1179.
11 Li Y, Kwan A. Cement and Concrete Composites, 2014, 49, 26.
12 冯辉红, 鲁黎, 陈静思, 等. 应用化工, 2014, 43(3), 389.
13 Mohammad B, Alireza J, Fadi A . Construction and Building Materials, 2018, 181, 27.
14 Ltifi M, Guefrech A, Mounanga P, et al. Procedia Engineering, 2011(10), 900.
15 Park T. Construction and Building Materials, 2007, 21(6), 1351.
16 Aggarwal P, Singh R P, Aggarwal Y, et al . Cogent Engineering, 2015, 2(1), 1078018.
17 Li G. Cement and Concrete Research, 2004, 34(6), 1043.
18 巴恒静, 冯奇, 杨英姿. 硅酸盐学报, 2002(6), 780.
19 Li W G, Huang Z Y, Cao F L, et al. Construction and Building Mate-rials, 2015, 95, 366.
20 Rong Z D , Sun W , Xiao H J, et al.Cement and Concrete Composites, 2015, 56, 25.
21 Shah S P, Hou P K, Konsta-Gdoutos M S. Sustainable Cement-Based Materials, 2016, 5(1-2), 2.
22 Hou P K, Kawashima S, Kong D Y, et al. Composites Part B: Enginee-ring, 2013, 45(1), 440.
23 Chithra S, Kumar S, Chinnaraju K. Construction and Building Materials, 2016, 113, 794.
24 唐明, 巴恒静, 李颖. 硅酸盐学报, 2003(5), 523.
25 Kong D Y, Hou P K, Yang Y, et al. Cement and Concrete Composites, 2015, 63, 30.
26 Xu G, HE X Y, He Y B. Journal of Wuhan University of Technology(Materials Science), 2018, 33(5), 1186.
27 Jiang W G, Li X G, Lv Y, et al. Construction and Building Materials, 2020, 238, 117683.
28 Nedunuri S, Sertse S G, Muhammad S. Construction and Building Mate-rials, 2020, 238, 117561.
29 Liu M L, Zhou Z H, Zhang X Z, et al.Construction and Building Mate-rials, 2016, 126, 624.