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Relation between Gel Space Ratio and Strength of Concrete This relation given by Powerr holds true for ideal cases.Ī typical curve showing the relationship between gel space ratio and compressive strength is given below: Powerr carried out an experiment and proved that the relation between the strength of concrete and gel space ratio-Ģ40 = intrinsic strength of gel in MPa for particular cement type

Powerr and Brownyard worked to establish a relation between gel space ratio and compressive strength. Relation Between Gel/space ratio and Compressive Strength Hence, it was concluded that the strength relates to solid products of hydration to the space available for the formation of the products. In gel/space ratio, the strength of concrete is related to the solid products of hydration of cement with respect to the space available for the formation of these products. It can be calculated at any age of concrete and for any fraction of hydrated cement. In contrast, the gel space ratio is independent of the age of concrete. And that too for a fully compacted concrete. To know the type of relationship between the w/c ratio with the strength of concrete, Read – Relation between W/c Ratio & StrengthĪnother limitation of the w/c ratio law is that it is good for determining strength for 28 days only. With an increase in the w/c ratio, the strength decreases. Air content if it is entrained concrete.Temperature at which the hydration of cement is done.Chemical and physical properties of concrete.