The use of micro-silica fume and high-quality cement orthogonal design, development of micro-silica fume, 60 high-strength concrete, a few days ago by the Chongqing Yangtze River Bridge largest Buddhist temple in the successful development of a testing center, and for the first time in the use of the bridge girder casting.

It is reported that as a modification of concrete materials, micro-silica fume with high-strength concrete pouring easy, compact as a whole, the long-term stability and high intensity, can improve the quality of construction, bridge construction market has great application value. The construction of the largest Buddhist temple in Chongqing Yangtze River Bridge, is a main span of 450 meters of the Twin Towers double cable plane prestressed concrete cable-stayed bridge, currently the largest span over the Wuhan Yangtze River Bridge span of 50 meters.

As the largest Buddhist temple in Chongqing Yangtze River Bridge use cantilever beams, pouring on the block-long engagement of the new technology, the concrete strength and stability requirements are particularly high. Undertake the task of building the bridge in the Iron Bridge Research Bureau, set up a special micro-silica fume concrete thematic research group, orthogonal design principle, the reference to the international construction market products, six months after the trial, to capture a series of technical problems , Merit-based selection of the best mix of various materials, the development of new products, building materials, and the main beam 14 pieces of cast-in-place success.

After testing experts, 60 micro-silica fume high-strength concrete with high intensity, high stability, high durability, and other characteristics of more than France and the Normandy Bridge, Tsing Ma Bridge in Hong Kong to adopt similar foreign products, China's construction market to fill the new materials of a bridge Of blank