北京建筑大学学报2025，Vol.41Issue(1)：61-71,11.DOI:10.19740/j.2096-9872.2025.01.07
养生时间及浸水对聚氨酯混凝土性能的影响规律研究
Impact of Curing Time and Water Immersion on the Performance of Polyurethane Concrete
摘要
Abstract
Polyurethane concrete is a low-carbon and durable paving material that uses polyurethane instead of asphalt as a binder.The aim of this study is to investigate the impact of curing time,immersion temperature,and immersion time on the road performance and mechanical properties of polyurethane concrete.Firstly,the deterioration trend of the properties of polyurethane concrete was investigated under continuous and intermittent water immersion.Subsequently,the influence degree of above three factors was quantified through significance analysis.Finally,a model for predicting the performance degradation of polyurethane concrete was put forward.The results showed that the shorter the curing time,the higher the immersion temperature,and the longer the immersion time,the weaker the various properties of polyurethane concrete.After each intermittent immersion,all performance indicators are recovered to a certain extent,and reached 12%~13%after multiple cycles.Moreover,the curing time and immersion time exerted significant influences on the performance of polyurethane concrete,while the immersion temperature has no significant effect.Furthermore,a decay prediction model for the performance of polyurethane concrete under continuous immersion conditions was established,with a goodness of fit R2>0.90.关键词
聚氨酯混凝土/养生时间/浸水时间/浸水温度/性能衰变/预测模型Key words
polyurethane concrete/curing time/immersion time/immersion temperature/performance degradation/predictive model分类
土木建筑引用本文复制引用
刘旭,张福达,张宝亮,丁学亮,张然..养生时间及浸水对聚氨酯混凝土性能的影响规律研究[J].北京建筑大学学报,2025,41(1):61-71,11.基金项目
国家重点研发计划项目(2022YFB2601900) （2022YFB2601900）
国家自然科学基金项目(U2233210、51978034) （U2233210、51978034）
北京市学者基金项目(No.067) （No.067）
北京市自然科学基金项目-市教委联合基金项目(KZ202110016020). （KZ202110016020）
