Abstract: The structure of the sluice is complex, and the high dosage of pumped concrete binder materials can easily lead to various cracks. Combining with the raw materials of the project, local fly ash and slag powder were selected, and the concrete performance with single addition of fly ash, multiple addition of fly ash, and slag powder, as well as different dosages, was studied. The tests included concrete mixing, mechanical properties, deformation, thermal properties, and durability. The results show that composition effect of mineral admixtures lead to improving the concrete mixture performance. Compare with concrete with 30% fly ash,concrete mixed with 20% fly ash and 20% slag powder has nearly the same impressive strength, and reduce 2.9℃ of the concrete adiabatic temperature rise, and improving the anti-crack property of concrete. The concrete with multiple mineral admixture provide a basis for the pumped concrete of the sluice in The Yangtze River to Huaihe River Diversion Project.

Key words: multiple mineral admixtures, fly ash, slag power, sluice, pumped concrete