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Structural engineers must be cautious about fire accidents in buildings, as a result critical deterioration occurs in the strength and serviceability of concrete structures. Self-Compacting Concrete (SCC) is an efficient material developed using Supplementary Cementitious Materials (SCM). This research intends to evaluate the effect of mineral admixtures such as Metakaolin (MK), Silica Fume (SF) and Fly Ash (FA) on the mechanical and durability characteristics of SCC exposed to elevated temperature. Two SCC mixes satisfying the European Federation of National Associations Representing for Concrete (EFNARC,  2005 ) workability stipulations developed to achieve 20MPa and 50MPa. The specimens were exposed to elevated temperatures following the ISO 834 standard fire curve. Compressive strength, water absorption, acid resistance and Rapid Chloride Penetration Test (RCPT) tests were carried out on heat-affected SCC specimens exposed to elevated temperature. A reduction in strength of 48% and 64% were obtained for the M20 and M50 grade SCC specimens, respectively.

australian journal of civil engineering

Influence of mineral admixtures on the residual mechanical properties and durability characteristics of self-compacting concrete subjected to high temperature