Relationship Between The Strength And Durability Of Conventional Concrete : An Overview
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Durability, Hydration, Permeability, Shrinkage, Strength, Water-Cement Ratio.
Although the strength of concrete has direct relationship with durability, but it does not completely signify that this statement is always prove right. This aspect should be sensitively taken into consideration while designing a concrete mix. As we know that, the strength of concrete is depends on the water-cement (W/C) ratio used for making concrete mix. There is such kind of relation between strength and water-cement (W/C) ratio, like for making a high strength concrete, low water-cement (W/C) ratio is required. This shows that at higher water-cement (W/C) ratio the concrete mix obtained is of low strength. In low water-cement (W/C) ratio, cement content is high in comparison to water content, and when cement content is high then it results in greater cracking tendencies because of increased thermal and drying shrinkage. High strength concretes are more sensitive to cracking than moderate or low strength concrete. At drying stage micro cracks are developed in concrete structure, which are due to drying shrinkage but are not susceptible to decrease in strength and durability. When water-cement (W/C) ratio is high then it results in higher permeability in concrete structure, which affects the strength and durability of concrete. High permeability is more sensitive to early stage deterioration of concrete, due to ingress of moisture, carbonation, sulphate attacks etc., all these ill effects makes the concrete less durable. This article is over viewed the relationship between the strength and durability of conventional concrete. This relationship signifies that higher strength of concrete can withstand long term durability is uncertain, it all depends on the better quality of product of hydration, reduced permeability, proper curing etc.
Article Details
Unique Paper ID: 149658

Publication Volume & Issue: Volume 7, Issue 1

Page(s): 223 - 226
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