钢箱梁桥面铺装钢纤维轻集料混凝土的研究  

Research on steel fibre reinforcement lightweight aggregate concrete for deck pavement of steel box bridge

作　　者：张锋[1] 丁庆军[1] 林青[2] 周成昀[2] 胡曙光[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070 [2]武汉绕城公路建设指挥部,湖北武汉430415

出　　处：《混凝土》2005年第11期46-48,59,共4页Concrete

基　　金：湖北省交通厅科技攻关项目资助(20010010)

摘　　要：钢纤维轻集料混凝土具有轻质高强、韧性优、抗渗性佳、隔热保温等显著优点,适宜于做城市高架钢箱梁桥桥面铺装材料。本文研究了钢纤维掺量及种类对轻集料混凝土干表观密度、抗压强度、抗折强度、韧性及抗渗透性能的影响规律,成功配制出干表观密度小于1990kg/m3,28d抗压强度大于50MPa,抗折强度大于8.0MPa,韧性指数η30大于24的钢箱梁桥桥铺装钢纤维轻集料混凝土。The excellent toughness and resistance to penetrability are the most obvious characteristics of steel fibre reinforcement lightweight aggregate concrete（SFRLWC） beside lower density, higher strength and insulating. It is the right materials for the deck pavement of city steel box bridge. The influence law of dosage and kinds of steel fibre on the dry density, compressive strength, flextural strength, toughness and resistance to penetrability are studied. The SFRLWC with dry density below 1990kg/m^3, 28d compressive strength over 50MPa, flextural strength over 8.0MPa and toughness index r/30 over 24 is successfully prepared for the pavement of steel box bridge.

关 键 词：钢纤维轻集料混凝土 钢桥面铺装 韧性 

分 类 号：TU528.2[建筑科学—建筑技术科学] TU528.572