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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: The Influence of Silica Fume and Curing Temperature on the Strength of Hsc
Author(s): Abdullah M. Alshamsi
Publication: Special Publication
Appears on pages(s): 57-66
Keywords: Curing; high-strength concretes; silica fume; strength; temperature
Abstract:The effect of silica fume and curing temperatures on the strength of High Strength Concrete (HSC) was investigated. Two concrete mixtures were prepared. The first mixture contained normal portland cement whereas 10% of the cement was replaced by silica fume in the other mixture. W/CM of 0.27 and slump of 40-60 mm were kept constant for both mixtures with the aid of a superplasticizer. Three curing temperatures were maintained throughout the testing age by means of water tanks. They were 20°C 35°C and 50°C. Testing was carried out at 1, 3, 7 , 2 8, 56 and of 90 days of age. The results indicate that while high curing temperatures accelerate strength development at early age, the strength at later ages is adversely affected. Furthermore, the adverse effect was greater in the case of silica fume concrete. The results also show that at 2OC, silica fume concrete produced similar results to other mixture from 7 days onwards. At the other two temperatures, silica fume concrete exhibited (in . general) lower results.
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