Method for determining crushing rate of crushed stone clamped and wedged by forced mixer

The invention provides a method for determining the crushing rate of crushed stone clamped and wedged by a forced mixer. The method comprises the following steps: step 1: the crushed stone is taken and placed in a square hole sieve, fragments with particle size smaller than the mesh size of the square hole sieve are screened out of the crushed stone, and the crushed stone residue on sieve is weighed as m1; step 2, the crushed stone residue on sieve weighed as m1 in the step 1 is poured into the forced mixer for mixing; step 3, the mixed crushed stone and fragments formed after clamping and wedging of the crushed stone are all placed into the square hole sieve, fragments with the size smaller than the mesh size of the square hole sieve are screened out, and the crushed stone residue on sieve is weighed as m2; step 4, the crushing rate B of the crushed stone clamped and wedged by the forced mixer is calculated according to the formula B=(m1-m2)/m1*100%. The crushing rate of the crushed stone clamped and wedged