Self-curing concrete with different self-curing agents

[摘要] Concrete is recognised as a versatile construction material globally. Properties of concrete depend upon, to a greater extent, the hydration of cement and microstructure of hydrated cement. Congenial atmosphere would aid the hydration of cement and hence curing of concrete becomes essential, till a major portion of the hydration process is completed. But in areas of water inadequacy and concreting works at considerable heights, curing is problematic. Self-Curing or Internal Curing technique overcomes these problems. It supplies redundant moisture, for more than sufficient hydration of cement and diminish self-desiccation. Self-Curing agents substantially help in the conservation of water in concrete, by bringing down the evaporation during the hydration of Concrete. The present study focuses on the impact of self-curing agents such as Poly Ethylene Glycol (PEG), Poly Vinyl Alcohol (PVA) and Super Absorbent Polymer (SAP) on the concrete mix of M25 grade (reference mix). The effect of these agents on strength properties of Concrete such as compressive strength, split tensile strength and flexural strength was observed on a comparative basis which revealed that PEG 4000 was the most effective among all the agents.

[发布机构] Civil Engineering Department, GPREC, Kurnool; Andhra Pradesh, India^1;YSR Engineering College of Yogi Vemana University, Proddatur; Andhra Pradesh, India^2

[效力级别] 机械制造

[关键词] Congenial atmosphere;Hydration of cements;Hydration process;Properties of concretes;Self desiccation;Split tensile strengths;Strength property;Superabsorbent polymer