The study analyzes the influence of standard sand and industrial quartz sand as fine aggregates on the mechanical properties of UHPC 100.The experimental results show that,under two different curing conditions,the compressive and flexural strength of UHPC with standard sand increases rapidly at 3 days,and at 28 days,the strength of both sands gradually becomes consistent.However,UHPC with industrial quartz sand exhibits higher flexural strength.Tensile strength and elastic modulus show a noticeable increasing trend with age.Regardless of whether standard curing or high-temperature curing is used,UHPC with industrial quartz sand exhibits superior mechanical performance at 7 days,with high-temperature curing conditions being more favorable.
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