四川内江地区所产河砂属特细砂,细度模数小、颗粒比表面积大,因而配制砂浆或砼时,需水量大、水泥耗用量也大,不仅增大成本,而且增大干缩量,对结构性能也不利。为此,我们利用内江白马电厂的焦渣与当地特细砂作人工级配,通过试验研究及在素砼、一般钢 The river sand produced in the Neijiang region of Sichuan Province is a special fine sand with a small fineness modulus and a large particle specific surface area. Therefore, when preparing mortar or concrete, the water demand is large and the consumption of cement is also large, which not only increases the cost, but also increases the dryness. Shrinkage is also detrimental to structural performance. For this purpose, we use the coke residue from the Neijiang Baima Power Plant and local fine sands for artificial grading, through experimental research and the use of ordinary steel and ordinary steel.