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You searched for: Author "Tan, Hongbo" Remove constraint Author: "Tan, Hongbo" Subject compression strength Remove constraint Subject: compression strength Subject gels Remove constraint Subject: gels
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1. Pore structure evaluation of cementing composites blended with coal by-products: Calcined coal gangue and coal fly ash

Author:
Tan, Hongbo,   et al.   ; Yang, Jin; Su, Ying; He, Xingyang; Jiang, Youzhi; Zeng, Linghao; Strnadel, Bohumír;     Show all 7 Authors
Source:
Fuel processing technology 2018 v.181 pp. 75-90
ISSN:
0378-3820
Subject:
byproducts; coal; coal fly ash; compression strength; gels; pastes; porosity; wastes
Abstract:
... Coal gangue (CG) and coal fly ash (FA) are the main coal by-product wastes. This paper focuses on the pore structure evaluation of CG and FA blended cementing composites with various replacement levels from 3 days up to 180 days. Results indicate that negative effect of coal by-products on the compressive strength and average pore size can be reduced to a negligible level at late ages. Similar ave ...
DOI:
10.1016/j.fuproc.2018.09.013

2. Utilization of barium slag to improve chloride-binding ability of cement-based material

Author:
Tan, Hongbo,   et al.   ; Chen, Pian; Ma, Baoguo; Liu, Xiaohai; Zhang, Ting; Li, Chunbao; Yang, Qi; Luo, Zhongtao;     Show all 8 Authors
Source:
Journal of cleaner production 2021 v.283 pp. 124612
ISSN:
0959-6526
Subject:
X-ray diffraction; barium; cement; chlorides; compression strength; energy-dispersive X-ray analysis; gels; heat; nuclear magnetic resonance spectroscopy; pastes; slags; thermogravimetry
Abstract:
... In this study, barium slag (BS) was utilized as a supplementary cementitious material (SCM) to improve the chloride-binding ability of cement pastes. Hardened paste specimens with 0–30% BS content were prepared, and the chloride binding rate (CBR) was evaluated. The compressive strength was tested, and the hydration heat was assessed. The mechanism behind was investigated by XRD, TGA, NMR, EDS, an ...
DOI:
10.1016/j.jclepro.2020.124612