Superfine sand is characterized by small average particle size and large specific surface area. It is easy to form plastic shrinkage cracks for high flowing concrete with superfine sand as fine aggregate. Thus, research on measures for superfine sand concrete to get rid of plastic shrinkage cracks is of important practical significance. In this paper, the influence of polypropylene fiber dosage on plastic shrinkage crack area as well as crack width and rate of water evaporation of superfine sand concrete we...