片麻岩碎石配制C60桥梁混凝土的研究

On Preparation of C60 Bridge Concrete with Gneiss Gravel

武汉至英山高速公路一期土建12标位于大别山区的英山县境内,标段内的杨柳互通A匝道桥连续梁设计为C60混凝土。大别山区广泛分布着由花岗岩变质而成的片麻岩,通过试验方法确定,尝试用该类花岗质片麻岩碎石配制出C60高强混凝土,且兼有混凝土的耐久性特点,对降低工程成本、开发大别山区石料资源有显著意义。

Civil engineering Bid Section XII of Wuhan-Yingshan Highway Phase One is located in Yingshan County of Dabie Mountain area, in which the design of intercommunicating A Ramp Bridge continuous beams uses C60 concrete. Gneiss, which is metamorphosed from granite, is widely distributed in Dabie Mountain area. Through test methods, it＇ s proved that C60 high-strength concrete prepared with such gneiss gravel from granite has a high durability and can reduce engineering costs, which is significant to the development of stone resources in Dabie Mountain area.