... selecting and using Evergreen P.042.5-level cement, natural medium sand of 2.81 fineness modulus, the artificial ... and compressive strength of not less than 105Mpa, and drinking water, to prepare C60-level high-strength concrete, such as ... concrete, permeability resistant concrete, waterproofing concrete, mass concrete, natural curing precast concrete, reinforced concrete and pre-stressed concrete, ...