多孔混凝土基层抗冻性研究  

Study on the Freezing Resistance of Porous Concrete Base

作　　者：王永红[1] 陶峰[2] 饶红胜 

机构地区：[1]湖北省咸宁市公路管理局,湖北咸宁437100 [2]山东省济宁市公路管理局,山东济宁272000

出　　处：《西部交通科技》2007年第2期26-29,共4页Western China Communications Science & Technology

摘　　要：多孔混凝土作为新型的排水基层材料,抗冻性是其耐久性的重要体现,良好的抗冻性是多孔混凝土用于冰冻地区的前提。文章在分析现有普通混凝土抗冻性试验方法与评价指标的基础上,针对多孔混凝土自身的结构特点及工作状态,采用快冻法,使冻融循环次数分别为25次、50次、75次和100次进行4种级配多孔混凝土的抗冻性试验,并采用耐冻系数作为评价多孔混凝土抗冻性的指标,得到了有效的试验研究结果。Porous concrete is a new kind of base material for drainage. Its freezing resistance is an important factor of durability. High freezing resistance is a premise for porous concrete being used in freezing region. Based on the analysis of anti-freezing test and assessment indexes of common concrete,and considering the structure character and working status of porous concrete,the Paper adopts quick-freeze method so that the cycle of freezing and thawing shall be respectively 25 times,50 times,75 times and 100 times for the anti-freezing tests of 4 kinds of porous concrete. With the anti-freezing coefficient as the index to assess the freezing resistance of porous concrete,the effective test and study output has been obtained.

关 键 词：道路工程 基层 多孔混凝土 抗冻性 快冻法 耐冻系数 

分 类 号：U416.1[交通运输工程—道路与铁道工程]