养护剂对道路混凝土早期开裂的影响  

Effect of curing agents on early cracking of road concrete

作　　者：张艳聪[1] 高玲玲[2] 田波[3] 申俊敏[1] 

机构地区：[1]山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原030006 [2]山西水利职业技术学院,山西运城044004 [3]交通运输部公路科学研究院,北京100088

出　　处：《混凝土》2012年第10期124-127,共4页Concrete

基　　金：山西省交通建设科技项目(11-2-19);西部交通建设科技项目(200731822301-7)

摘　　要：针对道路混凝土早期开裂现象,设计蒸发率、早期开裂试验对3种养生剂进行比较,研究养生剂对混凝土硬化阶段水分散失和早期裂缝形成的影响。研究表明:养生剂对混凝土不但起到了保湿作用,还缩短了其水分散失的时间进程,对混凝土裂缝的数量、长度和宽度均有明显的抑制作用。For the phenomenon that road concrete early cracking,evaporation rate and early cracking testing was done to compare the different between three curing agents by the influence to water loss and crack formation.Studies have shown that:curing agent not only played a role that moisturizer,but also shortened the time of its water loss.Then,the quantity length and width of concrete cracks were significantly inhibited because of increasing the amount of curing agent.

关 键 词：道路工程 道路混凝土 蒸发率 开裂 养生剂 

分 类 号：TU528.042[建筑科学—建筑技术科学]