Premium
Preparation and modification of alkaline bricks by using industrial residues and calcium stearate
Author(s) -
Liu Chenxu,
Liu Bo,
Chen Xidong,
Zhang Jin,
Duan Wubiao,
Guo Jianping,
Han Junping,
Zhang Yanxian,
Yu Shuxuan,
Hu Kunsheng
Publication year - 2017
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12425
Subject(s) - calcium , fly ash , stearate , calcium stearate , compressive strength , cement , residue (chemistry) , chemistry , flexural strength , alkaline earth metal , chloride , nuclear chemistry , materials science , chemical engineering , metallurgy , organic chemistry , composite material , raw material , alkali metal , engineering
New environmentally friendly alkaline bricks were produced with the utilization of industrial residues (alkaline residue and fly ash) as main resources and novel combination of calcium stearate as an addition. By adjusting the ratio of alkaline residue and fly ash, reducing the water cement ratio, the flexural and compressive strengths of the alkaline bricks reached up to 2.5 MPa and 10 MPa, which has reached the corresponding Chinese Testing Standards. Moreover, by adding a small amount of calcium stearate (0.50%, wt), the concentration of extracted chloride ion was decreased by 30% and the resistance to freezing was doubled, which the bricks can be possibly used in the Northern China. In addition, the micro‐modification mechanism was provided and the practical application was analyzed. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 21–26, 2017