Preparation of Cementitious Material Based onAlkali GGBS Manganese Alloy Slag System
WANG Chong,WAN Chao jun,WANG Zhi and ZHANG Long bang
DOI:10.11835/j.issn.1674-4764.2010.01.026
Received September 07, 2009,Revised , Accepted , Available online July 01, 2015
Volume ,2010,Pages 136-140
- Abstract
Manganese alloy slag is an industrial waste produced from manufacture of manganese alloy. Recent years environment pollution of manganese slag has been becoming heavier and heavier with the development of manganese industry. Aiming to sort out this problem, combination of manganese slag and ground granulated blastfurnace slag (GGBS) were applied to prepare alkali activated cementitious material. Compressive strength and flexural strength of cementitious material prepared with combination of alkali slag manganese slag were measured. And micro structure of hydration production was investigated by scanning electro microscope (SEM). It was shown that the flexural and compressive strength of cementitious material with alkali GGBS manganese slag system were decreased with the increase of replacement of GGBS by manganese slag. The increase of the fineness of manganese slag was favorable for strength improvement of the alkali GGBS manganese slag material. It was concluded that ground manganese slag had hydraulic activity in alkali activated cementitious material and the activity was lower than that of GGBS.