体积稳定性对中低强度混凝土高性能化的影响分析  

Influences of Bulk Stability on High-Performance of Low Strength Concrete

作　　者：黄学军 

机构地区：[1]马鞍山建设工程质量检测中心,安徽马鞍山243000

出　　处：《建材技术与应用》2011年第8期11-14,共4页Research and Application of Building Materials

基　　金：住房和城乡建设部2010年科学技术计划项目(2010-K4-27)

摘　　要：近年来,高强高性能混凝土的研究取得了很大进展。但在实际工程应用中,目前仍以中低强度等级的混凝土为主,对中低强度等级混凝土高性能化的研究,显然比高强高性能混凝土的研究更有实用意义。对于中低强度等级混凝土的高性能化,不可避免地要涉及混凝土的体积稳定性,实际环境中的混凝土体积变形存在湿热耦合的特点,体积变形对混凝土耐久性的影响主要表现在引起混凝土开裂,使得其他的劣化过程更容易进行,这对于混凝土材料及结构的耐久性极为不利。Recently, studies of high - performance concrete makes a great progress. However, in practice, the low strength concrete is still the main part nowadays, so the study of high - performance of low strength concrete is more meaningful than that of high -performance concrete. As to the high - performance of low strength concrete, it is inevitable to talk about bulk stability. In practical environment, concrete bulk transformation has the feature of hot and humid coupling, and its affect on concrete duality mainly leads to cracks, which makes other degradation more easily and it is harmful for concrete durability.

关 键 词：混凝土 高性能化 中低强度 体积稳定性 耐久性 

分 类 号：TU528.01[建筑科学—建筑技术科学]