Effect of Super Plasticizer on Properties of Alkali-Activated Slag
CHEN Ke,YANG Chang-hui,YU Ze-dong,ZHAO Shuang and PAN Qun
DOI:10.11835/j.issn.1674-4764.2012.01.024
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2012,Pages 124-129
- Abstract
With polynaphthalene sulphona, lingosulphonate based plasticizer, Sodium gluconate, Mortar plasticizer, C18H29SO3Na, C15H34ClN, the performance of alkali-activated slag mortar was teseed. The results show that lingosulphonate based plasticizer and polynaphthalene sulphona have some plasticizing effect for alkali-activated slag mortar, and the effect of the former than the latter obviously. Plasticizing effect of polynaphthalene sulphona compound mixed with air-entraining agent than single-doped polynaphthalene sulphona obviously. Plasticizing effect of polynaphthalene sulphona compound mixed with lingosulphonate based plasticizer than single-doped super plasticizer obviously. When the same amount of water, lingosulphonate based plasticizer can increase the early strength of alkali activated slag mortar, polynaphthalene sulphona can reduce the early strength. The incorporation of slag in the mix of alkali and super plasticizer can increase the strength of alkali activated slag mortar. Lingosulphonate based plasticizer on the setting time of alkali-activated slag have a greater impact，alkali-activated slag mixed lingosulphonate based plasticizer fluidity smaller through time.