长春工程学院学报（自然科学版）2025，Vol.26Issue(1)：19-24,6.DOI:10.3969/j.issn.1009-8984.2025.01.004
高温后高强轻骨料混凝土力学性能试验研究
Experimental Study on Mechanical Properties of High Strength Light Aggregate Concrete after High Temperature
摘要
Abstract
In order to study the mechanical properties of high strength light aggregate concrete after high temperature,high strength light aggregate concrete with strength grades of LC50,LC60 and LC70 are pre-pared,and the axial compression performance of LC50 and LC70 light aggregate concrete after high tem-perature is studied.Heating LC50 and LC70 light aggregate concrete at 200℃,400℃,600℃,and 800℃by a rapid heating box type electric furnace,the high strength concrete after each temperature is conducted to test uniaxial compressive performance.It observes the apparent characteristics of high strength light ag-gregate concrete after high temperature,tests the cubic compressive strength,and analyzes the influence of high temperature on the mechanical properties.The results show that the compressive strength of cubic specimens of high strength light aggregate concrete generally decreases with increasing of temperature and has a certain regularity.When the temperature is heated from normal temperature to 800℃,the axial com-pressive strength of high strength light aggregate concrete decreases by less than 50%,and the decrease is greater at 600℃.关键词
高温/高强轻骨料混凝土/轴压性能Key words
high temperature/high strength light aggregate concrete/axial pressure performance分类
土木建筑引用本文复制引用
刘宏波,魏鲁彬,叶晓旭,汪凯柄,杨奥齐..高温后高强轻骨料混凝土力学性能试验研究[J].长春工程学院学报（自然科学版）,2025,26(1):19-24,6.基金项目
河北省高校2022年基本科研业务费项目(2022CXTD01)河北建筑工程学院博士基金项目(B-202103)2024年度校级研究生创新基金项目(XY2024007) （2022CXTD01）
