【摘要】 水灰比和骨料级配的改变对透水混凝土性能的影响效果十分明显，二者作为透水混凝土的基本配合比影响因素，主要研究了不同水灰比和不同骨料级配对透水混凝土性能的影响。采用体积法进行透水混凝土基准配合比设计，通过分析不同因素对物理性能、力学性能和透水性能的影响，结果表明：在同一骨料级配下，连续孔隙率和透水系数随着水灰比的增大而减小，抗压强度先增大后减小；在同一水灰比下，单一骨料级配透水系数和连续孔隙率较大。在混合级配中随着9～14.5 mm粒径骨料占比的增加，透水混凝土的连续孔隙率和透水系数均表现为下降趋势，而抗压强度表现为先增加后减小。并通过数据拟合分析了连续孔隙率、抗压强度和透水系数三者之间的关系。更多还原

【Abstract】 The effect of changes in water-cement ratio and aggregate gradation on the performance of permeable concrete is very obvious.Both are used as the basic mix ratio of permeable concrete.Influence.The volume method is used to design the reference mix ratio of permeable concrete.Through analysis of the influence of different factors on the physical properties,mechanical properties and water permeability,the results show that under the same aggregate gradation,the continuous porosity and water permeability coefficient increase with the water-cement ratio.When it increases and decreases,the compressive strength first increases and then decreases.Under the same water-cement ratio,the water permeability coefficient and continuous porosity of a single aggregate gradation are relatively large.In the mixed gradation,as the proportion of aggregates with a particle size of 9～14.5 mm increases,the continuous porosity and water permeability of the permeable concrete show a downward trend,while the compressive strength first increases and then decreases.The relationship among continuous porosity,compressive strength and water permeability coefficient is analyzed by data fitting.更多还原