关键词: 混凝土;高钛重矿渣骨料;配合比设计;拌合性能;力学性能;耐久性能

Abstract: In accordance with relevant standards, experimental research was carried out respectively to verify the feasibility of pumping concrete of industrial and civil construction engineering, which concrete prepared by aggregate of high titanium heavy slag ( HTHS aggregate) in Xichang City.According to natural aggregate concrete and HTHS aggregate concrete of C30, comparative experimental research contained mix proportion design of concrete, mixing performance, mechanical performance, long-term performance and durability.Experimental research shows that it can significantly increase concrete performance that pre-wetting time of HTHS aggregate is 12 h; HTHS aggregate in Xichang City can be used instead of natural aggregate to prepare pumping concrete, which mixing performance, mechanical performance, long-term performance and durability, structure performance met relevant standard requirements.

Key words: concrete;aggregate of high titanium heavy slag;mix proportion design;mixing performance;mechanical performance;long-term performance and durability