中国塑料2024，Vol.38Issue(7)：74-78,5.DOI:10.19491/j.issn.1001-9278.2024.07.013
基于随机骨料模型的EPS颗粒混凝土蒸养损伤及微观分析
Damage and microscopic analysis of steam-cured EPS particle-filled concrete based on random aggregate model
摘要
Abstract
To study the mechanism of thermal damage of concrete caused by steam when mixed with waste plastics,the compressive strength tests of concrete with different contents of polystyrene foam(EPS)particles were carried out,and the effect of EPS-particle incorporation on the porous structure characteristics and microscopic evolution of steam-cured specimens was revealed through mercury intrusion test and SEM observation.The results indicated that the strength of steam-cured specimens increased slightly with an increase in the EPS content.The introduction of EPS particles is benefi-cial for the development of the later strength of the steam-cured concrete.The thermal stress caused by steam curing was significantly alleviated,and the number of micro cracks and through cracks decreased,effectively suppressing the thermal damage caused by steam curing.The presence of EPS particles refined the pore structure of the steam-cured concrete and reduced the crack width on the interface of the EPS particle and cement matrix.关键词
聚苯乙烯泡沫塑料颗粒混凝土/蒸养损伤/随机骨料模型/孔结构Key words
polystyrene foam granular concrete/steam curing damage/random aggregate model/pore structure分类
化学化工引用本文复制引用
杨蕊,郭杨,周金友..基于随机骨料模型的EPS颗粒混凝土蒸养损伤及微观分析[J].中国塑料,2024,38(7):74-78,5.基金项目
浙江省高等学校访问工程师校企合作项目(FG2020286) （FG2020286）
