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Add Silicon power in concrete, andits effects have: (1) physical effect. Fine particles fill the pores betweenthe cement particles, denser paste to improve the microstructure of cement,aggregates, concrete materials to improve macro-physical - mechanicalproperties (strength, impermeability, durability resistance, elastic modulus,etc.). (2) the effects of chemical reaction. The major component of the silicain the Silicon power in the alkaline excitation conditions, and cement hydrationprecipitated Ca (OH2) react, generating the nature of the water hardness havinga silicate colloid - calcium silicate hydrate gel, these gel blocking in thecapillary, the capillary hole becomes small, and not continuous, thus greatlyimproving the compacting of concrete. And calcium silicate hydrate gel strengthis much larger than the Ca (OH) 2 gel. So silicon power has two advantages ofthe volcanic ash effects and particles effects, can improve the water bleedingof fresh concrete and cohesiveness, to achieve the purpose of improving thequality of concrete comprehensively.Silicon power concrete its uniqueadvantages, widely used in the following construction field. (1) WaterResources and Hydropower Engineering Hydraulic Structures: dam intake, waterdiversion channels, tunnel, surge shaft, the lower part of the main plantstructure, make full use of Silicon power concrete has good waterproof,impermeability, abrasion resistance and anti-empty the characteristics of theeclipse. (2) civil engineering works: Silicon power concrete early strengthhave the characteristics of high strength, is used extensively for industrialplants, high-rise buildings. Can increase strength, reduce the size of themember section, shorten the construction period, but also to save the projectcost. (3) road construction: full use of Silicon power concrete early strength,high strength, wear resistance, and the construction of high-grade highways,airport runways, highway tunnel and road repair projects. Yizheng ChemicalFiber Company roads with Silicon power concrete construction of roads in theplant center, 12-hour compressive strength up to 25Mpa, anti-abrasion increasedby 1 times, 24-hour compressive strength up to 37Mpa C20 concrete exceeds thedesign requirements. (4) ports, bridges, brine: Silicon power concrete, highdensity, and has a very high resistivity, is not easy to form electrochemicaldestruction, enhanced anti-corrosion properties. (5) shotcreting: Silicon powerconcrete, significantly improve the adhesion properties of plastic concrete andcohesion, a significant reduction in the amount of springback increasesinjection molding thickness of concrete, shorten the construction period, theproject cost savings . In the United Statesand Europe, almost 75% of the sprayed concrete mixed with Silicon power, in Norway and Sweden, Silicon power shotcrete isan essential material.Silicon power as a metal power, commonly used inthe refractory industry. It has an important role to the unshaped refractoriesto improve. Manifested as (1) traditional refractory numerous pores, Siliconpower filling the pores, increase the bulk density and reduce the porosity andstrength can be significantly enhanced. (2) Silicon power with strong activity,the colloidal particles can be formed in the water, adding an appropriateamount of dispersing agent can be enhanced fluidity, thereby improving thepouring performance. (3) Silicon power in the water is easy to form a-Si-OHgroup, having strong hydrophilicity and active, can enhance refractoryaggregation greatly , while the high temperature performance, prolong the lifeof the refractory products .Silicon powder is widely used in therefractory industry. Practical application in the following aspects: (1)instead of pure aluminum oxide mud for refractories. (2) as an additiveproduction of monolithic and shaped refractory products, its strength and hightemperature performance is greatly improved. (3) as a whole ladle pouring combinationcoagulant. (4) as a cohesive agent, binding agent, coagulant additives of otherrefractory products.Source:http://www.mhcmp.com Article Tags: Silicon Power Concrete, Silicon Power, Power Concrete, Refractory Products
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