摘要
超高韧性混凝土轻型组合桥面结构可提高桥面系整体刚度,有效解决钢桥面疲劳开裂与铺装层破损病害,提高桥梁耐久性。超高韧性混凝土具有高强度、高韧性等特点,抗拉强度可达30MPa以上,抗压强度可达120MPa以上。对超高韧性混凝土工作机理进行研究,并对比分析其与常规混凝土、环氧沥青混凝土的区别,总结超高韧性混凝土适用范围。
Ultra-high toughness concrete lightweight composite bridge deck structure can improve the overall stiffness of bridge deck system,effectively solve the fatigue cracking of steel bridge deck and the damage of pavement layer,and improve the durability of bridges.Ultra-high toughness concrete has the characteristics of high strength,high toughness and so on,the tensile strength can reach 30 MPa and the compressive strength can reach 120 MPa.The working mechanism of ultra-high toughness concrete is studied,and the similarities and differences between ultra-high toughness concrete and conventional concrete and epoxy asphalt concrete are compared,and the scope of application for ultra-high toughness concrete is summarized.
作者
郭永伟
GUO Yongwei(No.3 Engineering Co.,Ltd.of CCCC First Highway Engineering Co.,Ltd.,Beijing 101102,China)
出处
《施工技术》
CAS
2021年第9期20-22,共3页
Construction Technology
基金
中交一公局集团有限公司课题:STC钢桥面施工关键技术。
关键词
桥梁工程
超高韧性混凝土
桥面板
铺装层
施工技术
bridges
ultra-high toughness concrete
bridge panel
pavement layer
construction
