How to mix concrete – Introduction to concrete mixing
Concrete is a building material that is made by mixing cement, sand, water and ballast. It is usually used for structural purposes but it also has use in decorations and…
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concrete class
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Best mix ratios/Design Mix for Class 15,20,25,30 concrete
Mix ratios / Mix designs are the ratios that give the amount of materials, ie. Cement, smooth aggregate(Sand), and Coarse aggregate (Ballast/Kokoto). The design mix varies from one class to…
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Understanding Concrete grade/class types, Mix ratios and their uses
A concrete grade is an indication of the strength that a concrete attains after maturity. In most cases the strength is measured at 28 days since concrete usually achieves around…
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Different grades of cement and where to use them
You have probably seen different bags of cement labelled 32.5(33), 42.5(43) and 52.5(53) Grade cement. What does this number mean? This is the strength that the cement used has the…
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