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本文主要介绍了高性能混凝土和普通混凝土在无减摩和减摩情况下的本构关系试验比较结果，着重对抗压极限强度、峰值压应变、应力应变关系、弹性模量、泊松比、初裂应力等进行分析比较。研究表明：高性能混凝土与普通混凝土相比，压缩弹性阶段较长，弹性模量较高，两种混凝土峰值压应变、泊松比较接近，初裂应力都较大；减摩措施降低了这两种混凝土的抗压强度测值、普通混凝土的初裂应力和弹性模量测值，但减摩对高性能混凝土弹模影响不大，且提高了高性能混凝土的初裂应力。
This paper mainly introduces the test results of high-performance concrete and ordinary concrete under friction-free and friction-reducing conditions, and focuses on the ultimate compressive strength, peak compressive strain, stress-strain relationship, elastic modulus, and Poisson’s ratio. The initial crack stress was analyzed and compared. Studies have shown that: compared with ordinary concrete, high performance concrete has a longer compression elastic stage and a higher elastic modulus. The peak compressive strain and Poisson of the two concretes are close to each other, and the initial cracking stress is large; the friction reduction measures reduce the two The measured compressive strength of concrete, the initial cracking stress and modulus of elasticity of ordinary concrete are measured, but the friction reduction has little effect on the high performance concrete elastotype, and the initial cracking stress of high performance concrete is improved.