Abstract
Alkali-activated materials based on industrial by-products such as fly ash (FA) or blast furnace slag (BFS) have shown promising potential to replace Ordinary Portland Cement (OPC) in the construction industry1. However, alkali-activated FA reacts slowly at room temperature and alkali-activated BFS shows quick setting and large shrinkage. When FA and BFS are blended the alkali-activated blends can counterbalance some disadvantages when FA and BFS are activated alone. It has been reported that activated BFS and FA (AASF) has high compressive strength, low porosity and good durability2,3. However, the autogenous shrinkage of AASF is still higher than that of OPC4. The large autogenous shrinkage will hinder a wider application of this environmentally-friendly material. This paper aims to experimentally study the
autogenous shrinkage phenomenon of AASF in comparison with OPC paste. The
mechanism behind the autogenous shrinkage of AASF is discussed.
autogenous shrinkage phenomenon of AASF in comparison with OPC paste. The
mechanism behind the autogenous shrinkage of AASF is discussed.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 5th International Slag Valorisation Symposium |
| Subtitle of host publication | Leuven, 03-05/04/2017 |
| Pages | 369-372 |
| Publication status | Published - 2018 |
| Event | 5th International Slag Valorisation Symposium - Leuven, Belgium Duration: 3 Apr 2018 → 5 Apr 2018 Conference number: 5 http://slag-valorisation-symposium.eu/2017/ |
Conference
| Conference | 5th International Slag Valorisation Symposium |
|---|---|
| Country/Territory | Belgium |
| City | Leuven |
| Period | 3/04/18 → 5/04/18 |
| Internet address |