随着废胶粉取代量的增加，砂浆试样的折压比值增大。
The ratio of flexural strength and compressive strength increases with the increasing amount of waste powder.
试验表明，废石粉部分取代砂，可以改善砂浆的和易性，减少砂浆收缩，提高抗压强度并有利施工。
The tests show part of the waste stone dust instead of sand can improve workability of mortar, reduce mortar contraction and increase compression strength. It is of advantage for construction.
由于废石粉中活性成分较少，所以用废石粉部分或全部取代粉煤灰时，会使砂浆后期强度降低。
As the stone waste powder had less the active ingredient, Using the stone waste powder to replace small or all of fly ash would reduce the later strength of the mortar.
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