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利用自主研发的设备将工业废弃物磷渣研磨成比表面积990 m2/kg的磷渣超细粉,通过水泥胶砂强度试验对磷渣超细粉的活性进行检测,再对掺入磷渣超细粉的高强机制砂混凝土进行了系统的研究。试验研究表明,磷渣超细粉能够改善高强机制砂混凝土的流动性;提高高强机制砂混凝土的密实度、减小收缩率,从而提高其耐久性。
Using self-developed equipment, industrial waste phosphorus slag is ground into phosphate slag ultrafine powder with a specific surface area of 990 m2 / kg, the activity of phosphorus slag ultrafine powder is tested through cement mortar strength test, The fine powder high strength sand made of concrete has been systematically studied. Experimental studies show that the phosphorus slag ultrafine powder can improve the fluidity of high-strength machine-made sand concrete; improve the compactness of high-strength machine-made sand concrete, reduce the shrinkage rate, thereby enhancing its durability.