Method for recycling sand containing chemical slurry in cast-in-situ bored pile in sand layer geology and concrete composition containing sand

The invention relates to the field of building construction, and particularly discloses a method for recycling sand containing chemical slurry in a cast-in-situ bored pile in sand layer geology and a concrete composition containing the sand, and the method comprises the following steps: obtaining the addition amount of polyacrylamide potassium salt in the chemical slurry during cast-in-situ bored pile; washing sand obtained after drilling and pouring by water according to a water washing condition C to obtain water-washed sand, and preparing concrete from the water-washed sand to achieve recycling of the sand containing the chemical slurry. The concrete composition comprises fine aggregate, and the fine aggregate is selected from the water-washed sand obtained by the method. The method has the advantages that the utilization rate of the sand containing the chemical slurry in the sand layer geological drilling and grouting process is increased, and secondary utilization of the sand is achieved. 本申请涉及建筑施工领域，具体公