Silica Fume has been used as an addition to concrete up to 15 percent by weight of cement, although the normal proportion is 7 to 10 percent.
With an addition of 15 percent, the potential exists for very strong, brittle concrete. It increases the water demand in a concrete mix; however, dosage rates of less than 5 percent will not typically require a water reducer.
High replacement rates will require the use of a high range water reducer.
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Jihe Microsilica has a high content of SiO2, and each content target is outstanding with stable quality. It is widely applied to concretes in water conservancy and hydropower, ... View detail