Effect of active rice husk ash on concrete strength and durability
1. As the amount of active rice hull ash increases, the concrete strength increases, and the greater the water-to-binder ratio, the greater the strength increase rate obtained. Adding rice husk ash to concrete can improve its resistance to hydrochloric acid solution erosion, carbonation resistance and impermeability.
2. The main reason that rice husk ash can improve the strength of concrete and improve the acid corrosion resistance, carbonation resistance and impermeability of concrete is: the incorporation of rice husk ash reduces the actual water-to-binder ratio of concrete; More CSH gel, while the amount of calcium hydroxya stone is reduced; the pore diameter of concrete is reduced.
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