Suzhou, sunshine grouting material - self-compacting grouting compound 
 Forming dense grouting material (SCC) is without vibrating on its own rheological properties of self-compacting grouting material. The advent of self-compacting grouting material is not only adapted to contemporary requirements of the grouting material engineering scale, complicated, and provided technical barriers for structural design based on the durability of the grouting material. Materials, the use of high quality as possible, thus improving the mechanical properties and durability of the hardened grout; on the design, due to reinforced self-compacting grout, Suzhou grouting material under its own weight through the densely and still maintain the homogeneity of the mixture for use can not only ease the growing shortage of skilled labor crisis, and to eliminate vibration noise, and has reduced the labor intensity of workers to avoid construction risks vibrators not dense to speed up the construction progress, to ensure the quality of the project and civilization construction and modernization of the level of construction management, and reduce the mixture for pump wear and improve efficiency in the use of the equipment. 
 Research and Application of self-compacting grouting material began in Japan, and Japan in World 1970s began a self-leveling self-compacting grouting material. At present, Japan, the preparation of self-leveling self-compacting mix your map way; 
 A tackifier coagulation together material to resist the separation capacity 
 2, the use of low heat of hydration Belite cement and blast furnace micronized mineral admixture to increase the proportion of powder materials to improve the separability of a mixture of anti- 
 3, the above two methods used. 
 Dense grouting material, Suzhou grout, sunshine assessment of grouting material, the main control of fresh concrete expansion sf (slump flow), the gap through performance-U-shaped tester height difference △ h, as well as the whereabouts of an inverted funnel viscosity agent time △ t. 
 In Shandong, the self-compacting the Suzhou grouting material the sunshine grouting material is mainly used in pouring a large quantity, steel-intensive and special shape parts. For example, were applied in the anchoring of the world's longest span suspension bridge - the Akashi Kaikyo Bridge (main span 1991m) two 24 * 104m3 and 15 * 104m3 self-compacting concrete, thereby shortening the construction period 20%. 
 With the construction of large-scale projects in China, the amount of self-compacting grout is increasing, such as the permanent ship lock of Three Gorges Project, Sichuan leaves two power plants with high performance grouting material admixture - modified naphthalene superplasticizer prepared artesian level compacting grouting material application to solve a narrow region of grout, grouting material of construction in Suzhou problem. 
 Maximum possibility of grouting material, Suzhou grouting material, sunshine grouting material surface layer cracks in the grouting material within the larger pores, the freezing point depression rarely, after freezing and thawing may also be its surrounding the formation of cracks. In a freeze-thaw cycle, the macroporous ice after quite a long time, none of the surrounding holes freeze, water holes within the constantly migrating to the large hole, big hole may also be saturated, the next freeze on the pore wall pressure formation of tensile stress in the matrix, eventually leading to the deterioration or destruction of the grouting material. 
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