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Self-curing concrete with different self-curing agents

机译:自固化混凝土用不同的自我固化剂

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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.
机译:混凝土被认为是全球化多功能建筑材料。混凝土的性质取决于,在更大程度上,水泥的水合和水合水泥的微观结构。相应的气氛可以帮助水泥的水合,因此,混凝土的固化变得必不可少,直至完成水合过程的主要部分。但在水不足和混凝土地区,在相当高的高度下,固化是有问题的。自我固化或内部固化技术克服了这些问题。它提供多余的水分,足够的水泥水合和递减自我干燥。自固化剂基本上有助于保护混凝土中的水中水,通过在混凝土水合过程中降低蒸发。本研究重点介绍了自固化剂如聚乙二醇(PEG),聚乙烯醇(PVA)和超级吸水性聚合物(SAP)对M25级(参考混合物)的混凝土混合物的影响。这些试剂对混凝土强度性能的影响,例如压缩强度,分裂拉伸强度和弯曲强度的比较基础,显示PEG 4000在所有药剂中最有效。

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