Materiales de Construcción, Vol 53, No 271-272 (2003)

Cast in place temperature´s 5 influence on fresh concrete made with limestone filler and blended cement


https://doi.org/10.3989/mc.2003.v53.i271-272.286

E. A. Soria
Departamento de Ingeniería Civil - Facultad de Ingeniería-Universidad Nacional del Centro, Argentina

V.F. Rahhal
Departamento de Ingeniería Civil - Facultad de Ingeniería-Universidad Nacional del Centro, Argentina

Abstract


Properties of fresh concrete play a relevant role on placing and consolidation; and its design strength and durability depends on them. It is well known too that the concrete temperature during placing affects all its properties in different ways and extent. This paper presents the influence of placing temperature of concretes made with portland cement, limestone filer cement and blended cement, commercially available, on slump, slump loss, setting time and bleeding. The results show that generally when concrete temperature rises, the bleeding and slump fall down and the slump loss and setting time are accelerated. However, regardless of the strength class the type of cement affects the value of these variations

Keywords


limestone filer cement; blended cement; placing temperature; fresh concrete; hot weather concreting

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