不同石粉掺量对混凝土力学性能的影响

Influence of Different Dosage of Stone Powderon Mechanical Properties of Concrete

文中结合正交试验给出不同石粉掺量、岩性及细度与混凝土抗压强度、抗折强度的相关性。结论表明,石粉掺量对混凝土力学性能影响最为明显,其次为石粉岩性,而石粉细度对混凝土力学性能影响最小。随着石粉掺量的增加,混凝土强度呈现出先增大后减小的趋势,当石粉掺量为10%时,混凝土力学性能最佳。

In this paper,the correlation between different stone powder content,lithology and fineness and compressive strength and flexural strength of concrete is given by orthogonal test.Based on the test data,the test results of the relationship between stone powder content are analyzed.The results show that the content of stone powder has the most obvious effect on the mechanical properties of concrete,followed by the lithology of stone powder,and the fineness of stone powder has the least effect on the mechanical properties of concrete.With the increase of stone powder content,the strength of concrete increases first and then decreases.When the content of stone powder is 10%,the mechanical property of concrete is the best.