自燃煤矸石掺合料对胶凝材料性能的影响

Influence of Spontaneous Combustion Gangue Admixture on Cementitious Material Performance

对自燃煤矸石的胶凝活性激发进行分析,将燃煤矸石矿粉、粉煤灰以及粉体添加剂等工业矿物掺合料复掺或单掺到胶凝材料中,探究自燃煤矸石掺合料对胶凝材料力学性能的影响。研究表明:复合掺杂粉、煤灰矿粉复合胶凝材料的力学性能优于单掺粉煤灰复合胶凝材料,但低于单掺矿粉复合胶凝材料。当复合掺杂矿粉、粉煤灰比例为1∶1时,胶凝材料的抗折性能和抗压性能最优。

The spontaneous combustion of coal gangue cementitious activity excitation is analyzed, and the industrial mineral slag, fly ash and coal gangue powder additive mixture mixing or single mixed into cement, explore the spontaneous combustion of coal gangue admixture effect on mechanical properties of cementitious materials. The results show that the mechanical properties of composite powder, fly ash and mineral powder composite cementitious material are better than that of single fly ash composite cementitious material, but lower than that of single mineral powder composite cementitious material. When the ratio of composite doped mineral powder and fly ash is 1：1, the flexural properties and compressive properties of cementitious materials are optimum.