100031040

EARLY AGE PROPERTIES OF HIGH EARLY STRENGTH
CONCRETE SUBJECTED TO STEAM CURING
Conference
31st Our World in Concrete and Structures (OWICs) - 2006
Authors
Ramesh Babu C*, IIT Madras, Chennai, India
Manu Santhanam, IIT Madras, Chennai, India
Handle
100031040
Key Words
High early strength, chemical characteristics, steam curing, compressive strength
Abstract
Steam curing is a widely used method for accelerating the strength gain in
concrete. Cement characteristics (composition, fineness and type), steaming
temperature, and steaming period are important parameters governing the efficiency
of the steam curing process. In this study, the effects of cement composition on the
early age compressive strength and water absorption of concrete mixtures subjected
to steam curing were evaluated. Two cements with differing compositions were used
in the study. The steam curing cycle comprised a delay period of 4 hours, steaming
temperature of 66 oC, and steaming period of 14 hours. The difference in the
reactivity of cements subjected to steam curing was apparent from the 1 day
compressive strengths obtained. The difference could be attributed to the physical
and chemical characteristics of the two cements. Water absorption results at early
age showed that there was no significant difference between the two concretes (with
different cements) subjected to steam curing.
Full Text
100031040
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