摘要
为提高钢渣的资源化利用率,以钢渣为粗骨料制备透水混凝土,研究了钢渣骨料级配、水胶比、增强剂掺量对透水混凝土性能的影响,并将研究成果在漳州西湖生态园道路工程中试点应用。结果表明,提高粒径2.36~4.75mm钢渣的掺量,可增大透水混凝土抗压强度,但会降低连续孔隙率和透水系数,当2.36~4.75mm钢渣:4.75~9.50mm钢渣为3:7时,透水混凝土综合性能最优,28d抗压强度达到33.2MPa,连续孔隙率为15.8%,透水系数为2.56mm/s。提高增强剂掺量,透水混凝土28d抗压强度先增大后减小,连续孔隙率和透水系数降低,当增强剂掺量为10%时,制得的钢渣透水混凝土兼具高强度和优异透水性。研究成果成功应用于漳州西湖生态园道路工程,透水混凝土强度和透水性能达到设计要求。
To improve the resource utilization rate of steel slag,permeable concrete was prepared using steel slag as coarse aggregate.This study investigates the effects of steel slag aggregate gradation,water-to-binder ratio,and admixture dosage on the performance of permeable concrete.The research findings were piloted in the road proj‐ect of Zhangzhou West Lake Eco-Park.Results indicate that increasing the content of 2.36~4.75 mm steel slag en‐hances the compressive strength of permeable concrete but reduces the continuous void ratio and permeability coeffi‐cient.When the ratio of 2.36~4.75 mm steel slag to 4.75~9.50 mm steel slag is 3:7,the comprehensive performance of permeable concrete is optimal,achieving a 28-day compressive strength of 33.2 MPa,a continuous void ratio of 15.8%,and a permeability coefficient of 2.56 mm/s.Increasing the admixture dosage initially raises and then lowers the 28-day compressive strength while reducing the continuous void ratio and permeability coefficient.With an ad‐mixture dosage of 10%,the steel slag permeable concrete exhibits both high strength and excellent permeability.The research outcomes were successfully applied to the Zhangzhou West Lake Eco-Park road project,where the strength and permeability of the permeable concrete met the design requirements.
作者
卢智斌
LU Zhibin(Fujian Henganda Construction Development Co.,Ltd.)
出处
《广东建材》
2025年第9期138-141,共4页
Guangdong Building Materials
关键词
钢渣
透水混凝土
道路工程
骨料粒径
透水系数
Steel slag
Permeable concrete
Road engineering
Aggregate particle size
Permeability coefficient
