REVIEW ON THE STUDY OF SELF CURING CONCRETE

Civil Engineering

Concrete is one of the most widely used construction material due to its good compressive strength and durability. Depending upon the nature of work the cement, fine aggregate, coarse aggregate and water are mixed in specific proportions to produce conventional concrete. Concrete needs curing for a minimum period of 28 days for achieve good hydration and desired mechanical properties. Any delay in curing will badly affect the strength and durability of concrete. Self-curing concrete is one type of concrete, which cure itself by retaining water (moisture content) in it, Self curing concrete is mainly used in areas where there is an acute shortage of water and the application of water curing is not possible for economic reasons . Conventionally, curing concrete means creating conditions such that water is not evaporated from the surface i.e., curing occurs ‘from the outside to inside’. In contrast, ‘internal curing’is allowing for curing ‘from the inside to outside’ through the internal reservoirs (in the form of saturated lightweight fine aggregates, superabsorbent polymers, or saturated wood fibres) Created. ‘Internal curing’can be also referred as ‘Self–curing.’ Any negligence in curing will affect the strength and durability of concrete. Shrinkage reducing agents like Polyethylene-glycol and lightweight aggregates such as Leca, Silica fume and are used to achieve effective curing results.

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