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Long-term properties of concrete containing ground granulated blast furnace slag and steel slag.
- Source :
-
Magazine of Concrete Research . Nov2014, Vol. 66 Issue 21, p1095-1103. 9p. - Publication Year :
- 2014
-
Abstract
- In this paper, the influence of six different mineral admixtures on the long-term properties of concrete within 1080 d is investigated; these admixtures include steel slag, ground granulated blast furnace slag (GGBS) and composite mineral admixtures with four different GGBS-to-steel slag ratios. The results show that steel slag and composite mineral admixtures with a high content of steel slag have many negative effects on the long-term properties of concrete, such as decreasing strength, increasing porosity and chloride penetrability, and decreasing carbonation and sulfate resistance. GGBS tends to improve the long-term properties of concrete. Concrete containing composite mineral admixture with a high content of GGBS can achieve similar long-term strength, porosity, chloride penetrability, and carbonation and sulfate resistance to Portland cement concrete. The influence of the composite mineral admixture composed of 80% GGBS and 20% steel slag on the long-term properties of concrete might be very close to that of GGBS. All the mineral admixtures tend to decrease the long-term drying shrinkage of concrete. The effect of composite mineral admixtures with higher GGBS content on the long-term drying shrinkage of concrete is more significant. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00249831
- Volume :
- 66
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Magazine of Concrete Research
- Publication Type :
- Academic Journal
- Accession number :
- 98605579
- Full Text :
- https://doi.org/10.1680/macr.14.00074