Research on mechanical behavior of calcined coal gangue cement mortar with different chemical activators

DOI

10.2991/ifeesm-17.2018.122How to use a DOI?

Keywords

Coal gangue; Cement mortar; Activator; Mechanical properties

Abstract

Coal gangue as admixture cement gelled material preparation, the preparation process of coal gangue calcined temperature of 600, using common P • O32.5R ordinary Portland cement, add 15% of fly ash and 1% of poly (carboxylic acid water reducing agent, chemical excitation agent with a purity of 99.9% Ca(OH)2, Na2SO4 and CaCl2, preparation of cement mortar specimens after standard curing, compressive strength, flexural mechanical properties were tested. The results showed that the excitation effect of three kinds of excitant was: Ca(OH)2 Na2SO4 CaCl2. The optimum content of the excitation agent Ca(OH)2 was 3%, and the sample 28d obtained the maximum compressive strength of 26.47MPa.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Bingke Qin
AU  - Yonghua Ji
AU  - Zhiling Bai
AU  - Qingkao Zhao
PY  - 2018/02
DA  - 2018/02
TI  - Research on mechanical behavior of calcined coal gangue cement mortar with different chemical activators
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 653
EP  - 656
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.122
DO  - 10.2991/ifeesm-17.2018.122
ID  - Qin2018/02
ER  -