新型高抗折道路混凝土研究  

New type of high flexural pavement concrete

作　　者：丁铸[1] 张鸣[1] 邢锋[1] 王淑平[2] 黄战[1] 

机构地区：[1]深圳大学土木工程学院深圳市土木工程耐久性重点实验室,广东深圳518060 [2]哈尔滨工业大学,黑龙江哈尔滨150000

出　　处：《混凝土》2008年第11期97-101,共5页Concrete

基　　金：“十一五”国家科技支撑计划项目(2006BAF02A00);教育部新世纪优秀人才支持计划(NCET-05-0704)

摘　　要：通过利用碱激发剂激发矿渣的潜在水化活性试验,确定了效果较好的激发剂,并对激发机理进行了分析,同时研究了水胶比、矿渣掺量、纤维的种类和掺量等因素的影响,制备出了矿渣掺量在30%以上,抗折强度在7～8MPa以上的系列新型高抗折道路混凝土,研究发现该系列混凝土具有良好的耐久性,适用于对抗折性能要求较高的重载道路。根据高性能混凝土及道路工程特点提出了基于施工质量和长期耐久性保障的优化工艺流程。A preferable activator is selected and activation mechanism is analyzed by activating latent pozzolanicity of slag with alkali activator, and effect of water to binder ratio, content of slag, type and content of fiber on concrete are stuelied.New type of series high flexural strength pavement concretes that content of slag is 30%, flexural strength is at least 7 MPa are prepared.Results show the concrete has favorable durability, and can meet the high flexural strength need of heavy-load road.Meanwhile,construction quality and long period durability based on optimized procedure was designed according to characteristic of high performance concrete and road engineering.

关 键 词：高抗折 混凝土 矿渣 激发剂 

分 类 号：TU528.01[建筑科学—建筑技术科学]