碱对硫铝酸盐水泥-粉煤灰体系水化硬化的影响

doi:10.11896/cldb.23050143

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (10294KB)
Export: BibTeX | EndNote (RIS)

Abstract As a trace component, alkali has an important impact on cement performance. In this work, the effect of alkali on the setting time, compressive strength, volume stability and hydration products of sulfoaluminate cement-fly ash system were studied. The results show that the setting time first decreases and then increases with the increase of Na₂SO₄ content. When the content of Na₂SO₄ increases to 1.5% and 2%, the setting time of sulfoaluminate cement-fly ash system exceeds that of the blank cement. High content of Na₂SO₄ results in the decrease of the early strength of sulfoaluminate cement-fly ash system. The addition of Na₂SO₄ can improve the later strength of the system, and restrain the reduction of later strength. The increase of Na₂SO₄ content can increase the expansion ratio, and high content of Na₂SO₄ results in the increase of shrinkage ratio. Low content of Na₂SO₄ has no significant effect on the formation of ettringite at early ages. However, high content of Na₂SO₄ inhibits the formation of ettringite at early ages. The crystal morphology of ettringite at early ages is also affected by high content of Na₂SO₄.

Key words： sulfoaluminate cement fly ash alkali strength volume stability hydration

Published: Online: 2023-09-06

CLC number:

TU525

Fund:Youth Project of Science and Technology Research Program of Chongqing Education Commission of China (KJQN202203104) and the Project of Chongqing College of Electronic Engineering (22XJZXYB12).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SHEN Yan
	ZHU Hangyu
	GONG Yongfan
	HE Qiang

Cite this article:

SHEN Yan,ZHU Hangyu,GONG Yongfan, et al. Effect of Alkali on Hydration and Hardening of Sulfoaluminate Cement-Fly Ash System[J]. Materials Reports, 2023, 37(S1): 23050143-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.23050143 OR http://www.mater-rep.com/EN/Y2023/V37/IS1/23050143

1 Wang Y M, Su M Z, Zhang L. Sulfoaluminate cement, Beijing University of Technology Press, China, 1999 (in Chinese).
王燕谋, 苏慕珍, 张量. 硫铝酸盐水泥, 北京工业大学出版社, 1999.
2 Shen Y, Zhu H Y, Wang P F, et al. Bulletin of the Chinese Ceramic Society, 2021, 40(2), 377 (in Chinese).
沈燕, 朱航宇, 王培芳, 等. 硅酸盐通报, 2021, 40(2), 377.
3 Zivica V. Construction and Building Materials, 2000, 14, 433.
4 Zhou X T, Dai S B, Ma B G, et al. Concrete, 2020(9), 92 (in Chinese).
周铉棠, 戴绍斌, 马保国, 等. 混凝土, 2020(9), 92.
5 Garcia-mate M, De la Torre A G, Leon-reina L, et al. Cement and Concrete Research, 2013, 54, 12.
6 Ioannou S, Reig L, Paine K, et al. Cement and Concrete Research, 2014, 56(2), 75.
7 Martin L H J, Winnefeld F, Tschopp E, et al. Cement and Concrete Research, 2017, 95, 152.
8 Yang S, Qian J S, Xiong Q Q, et al. Bulletin of the Chinese Ceramic Society, 2017, 45(8), 1136 (in Chinese).
杨莎, 钱觉时, 熊青青, 等. 硅酸盐学报, 2017, 45(8), 1136.
9 Xiong Q Q, Tang J Y, Yang Y L, et al. Bulletin of the Chinese Ceramic Society, 2018, 37(12), 3721 (in Chinese).
熊青青, 唐江昱, 杨雅伦, 等. 硅酸盐通报, 2018, 37(12), 3721.
10 Wang S B, Ji S X, Liu Y J, et al. Journal of the Chinese Ceramic Society, 1986, 14(3), 285 (in Chinese).
王善拔, 季尚行, 刘银江, 等. 硅酸盐学报, 1986, 14(3), 285.
11 Wu Y H, Shen W, Lu P. Journal of the Chinese Ceramic Society, 1998, 4(2), 118 (in Chinese).
吴逸虹, 沈威, 陆平. 硅酸盐学报, 1998, 4(2), 118.
12 Tambara L U D, Cheriaf M, Rocha J C, et al. Cement and Concrete Research, 2020, 128, 105953.
13 Lou Y K. Alkali in sulfoaluminate cement and its effect on cement performance. Master's Thesis, University of Jinan, China, 2018 (in Chinese).
娄玉科. 硫铝酸盐水泥熟料中的碱及其对水泥性能的影响. 硕士学位论文, 济南大学, 2018.
14 Dai Y S, Ding J D, Wang M Y, et al. Bulletin of the Chinese Ceramic Society, 2014, 33(8), 1885 (in Chinese).
戴银所, 丁建党, 王明洋, 等. 硅酸盐通报, 2014, 33(8), 1885.
15 Liu Z P, Wang C L, Zhang Y X, et al. Bulletin of the Chinese Ceramic Society, 2022, 41(4), 1245(in Chinese).
刘泽平, 王传林, 张宇轩, 等. 硅酸盐通报, 2022, 41(4), 1245.
16 Gui Y, Liao Y S, Xu P F. Concrete, 2020(2), 111 (in Chinese).
桂雨, 廖宜顺, 徐鹏飞. 混凝土, 2020(2), 111.
17 Jian X F, Wang D M, Huang T Y, et al. Bulletin of the Chinese Ceramic Society, 2014, 33(4), 984(in Chinese).
简险峰, 王栋民, 黄天勇, 等. 硅酸盐通报, 2014, 33(4), 984.
18 Xu P F, Sun Y, Liao Y S, et al. Bulletin of the Chinese Ceramic Society, 2017, 36(9), 2907 (in Chinese).
徐鹏飞, 孙艳, 廖宜顺, 等. 硅酸盐通报, 2017, 36(9), 2907.
19 Wang H. Study of activity on the cement adding high-volume fly ash. Master's Thesis, Central South University, China, 2012(in Chinese).
王浩. 大掺量粉煤灰替代水泥及其活性激发研究. 硕士学位论文, 中南大学, 2012.
20 Irvin A C, Craig W H, Maria C G J. Cement and Concrete Research, 2012, 42, 51.
21 Shen Y, Chen X, Zhang W, et al. Construction and Building Materials, 2018, 193, 221.
22 Qian J S, Yu J C, Sun H Q, et al. Journal of the Chinese Ceramic Society, 2017, 45(11), 1569 (in Chinese).
钱觉时, 余金城, 孙化强, 等. 硅酸盐学报, 2017, 45(11), 1569.
23 He R, Zheng X X, Wang Y, et al. Applied Chemical Industry, 2022, 51(5), 1495 (in Chinese).
何锐, 郑欣欣, 王渊, 等. 应用化工, 2022, 51(5), 1495.
24 Tang S W, Zhu H G, Li Z J, et al. Construction and Building Materials, 2015, 75, 11.