White Cement
WHAT IS WHITE CEMENT?
White cement is a hydraulic binder with physical characteristics corresponding to those of Portland grey cement. It is distinguished by its pure white colour. This whiteness is the result of nature, as well as the rigorous selection of raw materials used in manufacturing and a technologically advanced production process.
Benefits
- Well suited to use where the appearance of cement is of prime importance
Q: Is white cement stronger than grey cement?
A: The setting behaviour and strength development are essentially the same.
Q: Why is white cement more expensive than grey cement?
A: Lime used for the manufacture of grey cement is mined from Limestone mines, whilst the lime used for the manufacture of white cement is collected from the shells of various sea creatures such as oysters etc. This is a much more labour intensive process and hence more expensive. Most of the white types of cement available in South Africa are imported.
Q: What is the difference between grey cement and white cement?
A: White cement is made from raw materials containing little or no iron or manganese which is what gives grey cement its colour. It is much finer than grey cement and has higher reflective properties.
Q: How long does it take for the white cement to dry?
A: It generally sets within 24 hours depending on relative humidity. Like grey cement, it reaches its full strength after 28 days.
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