ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 03 NO. 02 APRIL 2014:

Title:       Experimental investigation on strength aspects of internal curing concrete using super absorbent polymer
Authors:   Vivek Hareendran, Poornima V., Velrajkumar G.
Abstract:  Proper Curing of concrete is maintaining moisture in the concrete during early ages specifically within 28 days of placing concrete, to develop desired properties. Curing concrete plays a major role in developing the concrete microstructure and pore structure. Concept of self curing is to reduce the water evaporation from concrete and hence increase the water retention capacity of the concrete compared to conventional concrete. Improper curing can easily reduce the strength of concrete. It is found that water soluble polymers used as admixtures in concrete influences the strength properties of concrete curing of concrete plays a major role in developing the concrete micro structure and hence improves its durability and performance. Self-curing concrete is one of the special concretes in mitigating insufficient curing due to human negligence paucity of water in arid areas, inaccessibility of structures in difficult terrains. Superabsorbent polymer (SAP) is used as internal curing agent .SAP is a group of polymeric material that have the ability to absorb and retain a significant amount of water from their surrounding and to retain the water with their structure without dissolving. In this study 0.2, 0.25, 0.3, 0.35 and 0.4 percentages of SAP are used to produce different mixes of self curing concrete. The optimum dosage for M50 grade concrete can be determined.

Keywords:  Internal Curing, Super Absorbent Polymer, Compressive Strength, Split Tensile Strength, Flexural Strength
Page No:    134-137

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