煤矸石粉煤灰加气混凝土的制备及性能

doi:10.11896/cldb.19110183

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (3769KB)
Export: BibTeX | EndNote (RIS)

Abstract In this paper, a new type of autoclaved aerated concrete (AAC) was developed using coal gangue and fly ash. The calcination temperatures of the coal gangue, effect of coal gangue content on physical and mechanical properties of AAC, and phase composition and microscopic morphology of AAC were analyzed using X-ray diffraction (XRD), and scanning electron microscope (SEM). And the result shows that 600 ℃ is the optimal calcination temperature, AAC with bulk density of 588 kg/m³ and strength of 3.65 MPa, which can reach the requirements of A3.5, B06 level of AAC product regulated by “autoclaved aerated concrete block” GB 11968-2006. After static curing, the hydration products in AAC body were ettringite (AFt), tobermorite, C-S-H gels and hydrated garnet; during the autoclaving, AFt was decomposed and more tobermorite formed coupled with C-S-H gels and hydrated garnet.

Key words： coal gangue fly ash autoclaved aerated concrete tobermorite hydrated garnet

Published: 24 December 2020

CLC number:

TU528

Fund:This work was financially supported by the China Postdoctoral Science Foundation(2016M602082), Natural Science Foundation of Hebei Province (E2018402119, E2020402079), Open Funds of Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources (2017SKY-WK008), Open Funds of State Key Laboratory of Solid Waste Resource Utilization and Energy Conservation (SWR-2017-006).

About author:: Changlong Wang received his Ph.D. degree in mining engineering from University of Science and Technology Beijing in 2014. He is currently a professor in School of Civil Engineering of Hebei University of Engineering. His research interests are comprehensive utilization of new building materials, mineral materials and complex symbiotic mineral resources.
Wei Zuo received his Ph.D. degree in mining enginee-ring from University of Science and Technology Beijing in 2010. He is currently a professor in Beijing Institute of Hydraulic and Environmental Geological Survey of China Coal Geology Group Co., Ltd. His research interests are environmental science and solid waste recycling.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Changlong
	ZHANG Kaifan
	ZUO Wei
	YE Pengfei
	ZHAO Gaofei
	REN Zhenzhen
	LIN Geng

Cite this article:

WANG Changlong,ZHANG Kaifan,ZUO Wei, et al. Preparation and Properties of Autoclaved Aerated Concrete Using Coal Gangue and Fly Ash[J]. Materials Reports, 2020, 34(24): 24034-24039.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.19110183 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24034

1 Yang M, Guo Z X, Deng Y S, et al.International Journal of Mineral Processing, 2012, 102-103(1), 112.
2 Li D X, Song X Y, Gong C C.Cement and Concrete Research, 2006, 36(9), 1752.
3 Li C, Wan J H, Sun H H, et al.Journal of Hazardous Materials, 2010, 179(1), 515.
4 Zhang N, Sun H H, Liu X M, et al.Journal of Hazardous Materials, 2009, 167(1), 927.
5 Ma Z G, Gong P, Fan J Q, et al.Mining Science and Technology (China), 2011, 21(6), 829.
6 Chugh Y P, Patwardhan A.Resources, Conservation and Recycling, 2004, 40(3), 225.
7 Yang Y Z, Deng H W, Gao X J, et al.Materials Science and Technology, 2009, 17(2), 239(in Chinese).
杨英姿, 邓宏卫, 高小建, 等.材料科学与工艺, 2009, 17(2), 239 (in Chinese).
8 Zhang X F, Ni W, Wang W, et al.Materials Reports B:Research Papers, 2009, 23(3), 93 (in Chinese).
张旭芳, 倪文, 王薇, 等.材料导报:研究篇, 2009, 23(3), 93.
9 Huang C H, Lin S K, Chang C S, et al.Constrction and Building Mate-rials, 2013, 46(5), 71.
10 Deschner F, Winnefeld F, Lothenbach B.Cement and Concrete Research, 2012, 42(10),1389.
11 Shakir A A, Naganathan S, Mustapha K N.Construction and Building Materials, 2013, 41(4), 131.
12 Zeng Q, Li K F, Fen-chong T, et al.Cement and Concrete Research, 2012, 42(1), 194.
13 Wu X M, Fan Y M.Journal of South China University of Technology (Natural Science Edition), 2003, 31(8), 57 (in Chinese).
吴笑梅, 樊粤明.华南理工大学学报(自然科学版), 2003, 31(8), 57.
14 Cui K H, Ma B G, Yi H Y.Journal of the Chinese Ceramic Society, 1992, 20(2), 123 (in Chinese).
崔可浩, 马保国, 易海云.硅酸盐学报, 1992, 20(2), 123.
15 Qian X Q, Zheng L.Journal of the Chinese Ceramic Society, 1991, 19(6), 495 (in Chinese).
钱晓倩, 郑立.硅酸盐学报, 1991, 19(6), 495.
16 Saygili A, Baykal G.Energy and Buildings, 2011, 43(11), 3236.
17 Hauser A, Eggenberger U, Mumenthaler T.Cement and Concrete Research, 1999, 29(3), 297.
18 Kurama H, Topcu I B, Karakurt C.Journal of Materials Processing Technology, 2009, 209(2),767.
19 Wang C L, Ni W, Li D Z, et al.Materials Science and Technology, 2012, 20(6), 7 (in Chinese).
王长龙, 倪文, 李德忠, 等.材料科学与工艺, 2012, 20(6), 7.
20 Wang C L, Qiao C Y, Wang S, et al.Journal of China Coal Society, 2014, 39(4), 764 (in Chinese).
王长龙, 乔春雨, 王爽,等.煤炭学报, 2014, 39(4), 764.
21 Wang C L, Ni W, Zhang S Q, et al.Construction and Building Materials, 2016, 104(1), 109.
22 Kakali G, Perraki T, Tsivilis S, et al.Applied Clay Science, 2001, 20(1), 73.
23 Yang N R, Yue W H.Atlas manual for inorganic nonmetallic 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.
24 Li Y F, Wang W X, Yang X Y.Journal of the Chinese Ceramic Society, 2007, 35(9), 1258 (in Chinese).
李永峰, 王万绪, 杨效益.硅酸盐学报, 2007, 35(9), 1258.
25 Liu D, Liu F T, Zhang D C, et al.Brick-Tile, 2014 (10), 10 (in Chinese).
柳东, 刘福田, 张德成, 等.砖瓦, 2014(10), 10.
26 Bensted J, Barnes P.Structure and performance of cements, 2nd edition, Spon Press,USA, 2002.
27 You B K, Chen F Y, Han L L, et al.Journal of the Chinese Ceramic Society, 2000, 28(4), 314 (in Chinese).
游宝坤, 陈富银, 韩立林,等.硅酸盐学报, 2000, 28(4), 314.
28 Yan P Y, Peng J, Qin X.Journal of the Chinese Ceramic Society, 2001, 29(2), 109 (in Chinese).
阎培渝, 彭江, 覃肖.硅酸盐学报, 2001, 29(2), 109.
29 Scrivener K L, Damidot D, Famy C.Cement, Concrete and Aggregates, 1999, 21(1), 93.