Situ concrete hollow floor technology development at home and abroad has been for decades. Concrete professional literature abroad in the 1970s, of the 1980s on the right embedded within the tubular mold situ Hollow Floor mechanical characteristics, structure, construction to do the research. Domestic units began to study in-situ hollow floor from the late eighties, and made a series of research results. December 6, 2002, "in-situ concrete hollow slab without beam Application Technology" by the Ministry of Construction Technology Development Promotion Center Assessment hollow floor, access to scientific and technological achievements the Ministry of Construction Assessment Certificate (built by the commentary [2002] No. 063 ). Assessment Unit believes that the results can be widely used in large-span, big space, big load of buildings. Compared with the conventional technique, can save the amount of concrete, reduce overall cost. The main results for schools, bridges, reading room, office buildings, shopping malls, factories, underground parking, large bays housing and other projects. Currently bullish trends, the prospect of unlimited, closely related to people's lives, in line with national industrial policy. This achievement popularization will produce comprehensive benefits immeasurable. In 2002, in-situ concrete hollow slab without beam technology that scientific and technological achievements won a gold medal and Great Britain International Patent Development Center awarded the International Invention Gold Medal at the Tenth Chinese patent new technologies and products Expo. At present, the country has tens of millions of square meters of the building is the architecture. Building development should be required, by the China Academy of Building Research editor of the "in-situ concrete hollow floor structure Technical Specification" completed in December 2004, formally implemented April 1, 2005. Cement thin-walled tube filled with cement filling thin-walled tube is one of a product often used in our work, if we want to make better use of thin-walled concrete filled tubes, we have a lot of knowledge about concrete filled thin-walled tube knowledge, today we should be days of companies who want to learn in this article filled with cement thin-walled tubes ready knowledge of the people we hope to help. Scope: The high-strength composite thin - hollow floor, cement hollow tube, hollow wall pipe book purchase high-strength hollow floor, GBF Hollow Floor high - strength hollow tube design, BDF high - strength hollow tube GRC high-strength thin wall floor systems hollow tubes for a variety of construction span and various loads, especially for large-span, large load, large space and multi-rise buildings, such as: commercial buildings, office buildings, libraries, exhibition halls, teaching House, railway stations, multi-storey carpark and medium-sized public buildings, also suitable for use in hotels, entertainment facilities, large bays residential buildings, more suitable for multilayer or monolayer industrial buildings, warehouses, garages and other lightweight concrete hollow tube Floor filled body advantages mainly in: 1) hollow, high-strength cement hollow book wall pipe, hollow pipe, high-strength thin-walled hollow tube, GBF / BDF / GRC / GRF high-strength book wall pipe, GBF / BDF / GRC / GRF book wall box, book wall boxes, hollow plate features excellent use of the building. 2) cement thin-walled fill tube / well cement thin-walled hollow floor box packing body seismic performance. 3) filled with cement thin-walled pipe / cement thin-walled hollow floor box filled body to reduce total cost of the building. 4) filled with cement thin-walled tube / cement thin-walled hollow floor box filled body to save the cost of renovation of the building. 5) filled with cement thin-walled pipe / cement thin-walled hollow floor box space was filled with flexible partitions. 6) filled with cement thin-walled pipe / cement floor filled with thin-walled hollow box body construction convenient and economical. 7) filled with cement thin-walled pipe / cement thin-walled hollow floor box filled with body building noise insulation, good insulation properties hollow floor design _ should be days of building materials (certified) _ Jining hollow floor should be days of building materials by the Yancheng Limited. Yancheng should be days of Building Materials Co. (ycytjc.com) (www.ycytjc.com) Jiangsu Yancheng, a leader in building materials processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In the days of building materials should be leading the staff warmly welcome all inquiries negotiations to create the building materials should be days of a better future.