The residual amount of the original coarse ash sieve is relatively large, containing a lot of impurities and a large loss on ignition, so the actual effect cannot be well reflected.
In view of this, the concrete made from it does not have ideal fluidity, and its water retention and cohesion do not meet the requirements, which will have a great impact on the quality of fresh concrete; Due to excessive water demand, the actual water consumption per unit volume of concrete may exceed the expected water consumption, resulting in an increase in water cement ratio, a decrease in compressive strength grade, and a serious weakening of the durability of hardened concrete.
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