首页|掺加橡胶颗粒透水混凝土的路用性能

掺加橡胶颗粒透水混凝土的路用性能

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为研究掺加橡胶颗粒透水混凝土的性能,选用粒径分别为 2.00、0.60、0.18 mm的等体积橡胶颗粒替代粒径为 2.36~4.75 mm的细集料,制备透水混凝土,橡胶颗粒与水泥的质量比分别为 0.05、0.10、0.15,研究橡胶颗粒对透水混凝土透水性、力学性能及抗冻性能的影响.试验结果发现:随橡胶颗粒与水泥质量比的增大,透水混凝土试件的连通空隙率、透水速率及抗冻融性提高,抗压强度和抗变形能力减小;随橡胶颗粒粒径的减小,透水混凝土试件的连通空隙率、透水速率减小,抗压强度提高,抗冻性能变化不大.粒径为 0.18 mm的橡胶颗粒与水泥的质量比为 0.05 时,透水混凝土试件的抗压强度和抗变形能力最佳.掺橡胶颗粒透水混凝土的抗冻融性能明显优于普通透水混凝土,粒径为 0.18 mm的橡胶颗粒与水泥的质量比为 0.10 时透水混凝土的抗冻融性能最好.
Pavement performance of permeable concrete mixed with rubber particles
To study the performance of permeable concrete with rubber particles,rubber particles with diameters of 2.00,0.60,and 0.18 mm are selected and mixed with concrete.The mass ratios of rubber particles to cement are 0.05,0.10,and 0.15,respectively.The fine aggregate with particle size of 2.36 to 4.75 mm is replaced with equivalent volume by rubber particles.The effects of rubber particles on the permeability,mechanical properties,and freeze-thaw resistance of permeable concrete are investigated.Experimental results show that as the mass ratio of rubber particles to cement increases,the connected void ratio,permeability rate,and freeze-thaw resistance of the concrete specimens improves,while the compressive strength and deformation resistance decreases.As the particle size of rubber particles decreases,the connected void ratio and water permeability rate of the permeable concrete specimens decreases,while the compressive strength increases slightly,and the freeze-thaw performance remains relatively stable.When the mass ratio of 0.18 mm rubber particles to cement is 0.05,the compressive strength and deformation resistance of the permeable concrete specimens are the best.The freeze-thaw resistance of rubber particle-modified permeable concrete is significantly better than that of ordinary permeable concrete.When the mass ratio of 0.18 mm rubber particles to cement is 0.10,the freeze-thaw resistance of permeable concrete is the highest.

rubber particlepermeable concretepermeabilitycompressive strengthfreeze-thaw resistancedeformation resistance

裴福才、李强、李峰

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山东省路桥集团有限公司,山东 济南 250014

山东汇通建设集团有限公司,山东 济南 250002

橡胶颗粒 透水混凝土 透水性能 抗压强度 抗冻融性 抗变形能力

山东省自然科学基金资助项目住房和城乡建设部科技项目

ZR2021ME0042020-K-063

2024

山东交通学院学报
山东交通学院

山东交通学院学报

影响因子:0.299
ISSN:1672-0032
年,卷(期):2024.32(1)
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