佛山科学技术学院学报（自然科学版）2024，Vol.42Issue(3)：49-60,12.
基于多指标下POM纤维对EPS轻型混凝土性能的影响
Effect of POM fiber on multi-performance of EPS lightweight concrete
摘要
Abstract
In order to explore the comprehensive influence of polyoxymethylene(POM)fiber on the performance of polystyrene(EPS)lightweight concrete and avoid the shortcomings of the evaluation solely relying on the mechanical properties index,the optimal dosage of POM fiber under different performance evaluation indexes was studied based on the POM fiber with a length of 12 mm.The results show that,based on the basic mechanical properties and the absolute change of relative dynamic elastic modulus,POM fiber has the best strengthening effect on EPS lightweight concrete and the lowest freeze-thaw damage when the dosage is 0.9%.Based on the indexes of water absorption and rheology,the consistency and water absorption resistance of slurry with the same dosage of 0.9%are the best.Based on dry shrinkage performance,when the dosage is 1.2%,the dry shrinkage resistance is the best.Based on the change rate of relative elastic modulus after freeze-thaw,the decay rate of relative elastic modulus is the lowest when the content is 0.6%.The study reveals the complexity and diversity of POM fiber reinforced EPS lightweight concrete,and further proves the mechanism of POM fiber reinforced and toughened EPS lightweight concrete through microscopic analysis.关键词
聚甲醛纤维/EPS轻型混凝土/冻融/干缩性能/相对弹性模量衰减率Key words
polyoxymethylene fiber/EPS lightweight concrete/freeze thawing/dry shrinkage property/relative elastic modulus decay rate分类
建筑与水利引用本文复制引用
高镇,朱健,程炜为,廖文杰,林潮俊,郭文昊..基于多指标下POM纤维对EPS轻型混凝土性能的影响[J].佛山科学技术学院学报（自然科学版）,2024,42(3):49-60,12.基金项目
国家自然科学基金资助项目(52208235) （52208235）
广东省2023年本科高校教学质量与教学改革工程建设资助项目(20231047) （20231047）
佛山市2022年博士后科研启动基金 （）
