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Chloride resistance of high-performance concretes subjected to accelerated curing
The strengths and chloride penetration resistance of a series of high-performance concretes were measured after curing either at 23 degree C or accelerated by heating to 65 degree C. The results confirm that concretes containing silica fume (SF) or ternary blends of SF and ground granulated blast-furnace slag (GGBFS) exhibit improved chloride penetration resistance compared to those of plain Portland cement concretes. In addition, chloride penetration resistance of Portland cement concrete is adversely affected by accelerated curing. With the use of the ternary ordinary Portland cement (OPC)-SF-GGBFS binders, accelerated curing did not have detrimental effects on chloride penetration resistance and provided 18-h strengths in excess of 40 MPa.
Chloride resistance of high-performance concretes subjected to accelerated curing
The strengths and chloride penetration resistance of a series of high-performance concretes were measured after curing either at 23 degree C or accelerated by heating to 65 degree C. The results confirm that concretes containing silica fume (SF) or ternary blends of SF and ground granulated blast-furnace slag (GGBFS) exhibit improved chloride penetration resistance compared to those of plain Portland cement concretes. In addition, chloride penetration resistance of Portland cement concrete is adversely affected by accelerated curing. With the use of the ternary ordinary Portland cement (OPC)-SF-GGBFS binders, accelerated curing did not have detrimental effects on chloride penetration resistance and provided 18-h strengths in excess of 40 MPa.
Chloride resistance of high-performance concretes subjected to accelerated curing
Hooton, R.D. (author) / Titherington, M.P. (author)
Cement and Concrete Research ; 34 ; 1561-1567
2004
7 Seiten, 13 Quellen
Article (Journal)
English
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