锰渣矿粉沥青混合料抗腐性能研究

Study on corrosion performance of manganese slag asphalt mixture

利用锰渣矿粉替代沥青混合料中的石灰岩矿粉配制成锰渣沥青胶浆和锰渣矿粉沥青混合料,进行锰渣沥青胶浆直剪试验、吸持性能试验及锰渣矿粉沥青混合料马歇尔试验、浸水马歇尔试验、冻融劈裂强度试验,测试不同替代量锰渣沥青胶浆粘附性能和锰渣矿粉沥青混合料抗腐性能的变化。结果表明,利用锰渣矿粉替代沥青混合料中的石灰岩矿粉能有效地改善和提高沥青胶浆粘附性能和沥青混合料抗腐性能。同时,通过锰渣矿粉改善和提高沥青胶浆粘附性能和沥青混合料抗腐性能的性能机理分析,揭示锰渣矿粉替代量影响沥青胶浆粘附性能和沥青混合料抗腐性能变化的原因。

Instead of using limestone powder in the asphalt mixture, Manganese slag is used to mix the Manganese slag asphalt mortar and asphalt mixture. By doing series of tests such as manganese slag asphalt mortar shear test, Manganese slag asphalt mortar sorption performance test, Manganese slag asphalt mixture Marshall test, Manganese slag asphalt mixture immersion Marshall test,Manganese slag asphalt mixture freezing thawing splitting tensile strength test, measure and analysis adhesion performance of different substitution of manganese slag in the asphalt mortar and the corrosion performance of different substitution manganese slag in the asphalt mixture. The results show that using manganese slag to substitute limestone powder in the asphalt mixture can effectively improve and enhance the adhesion performance asphalt of mortar and corrosion performance of asphalt mixture. Meanwhile, the performance improving and enhancing mechanism analysis result reveals the reason why different substitution of manganese slag affects the adhesion performance of asphalt mortar and corrosion performance of asphalt mixture.