The role of in support of fly ash grouting material - Zhengzhou pedestal grouting material

Role in support of fly ash grouting material many manufacturers support grouting material when used at the scene, after mixing with a lot of water, this is the present many questions in the future of the most important factor. Rich in a lot of mixing water there are two main factors: the top, affect the bearing grouting material mixture is the main factors of water demand and operation system of solid particle size distribution, particle accumulation effect and clearing. In general, the solid particles scattered can't be in the best condition, in order to reach the assignments must be sex, it is necessary to progress mixing water consumption; Second, because Portland cement particle appearance effect of electrode, the slurry flocculation structure simple composition, in order to make the slurry obtained satisfactory workability, mixing with water is much larger than demand by cement hydration water. Of fly ash for the reason that have higher water reducing effect are the main factors of fly ash particles adsorbed on the negatively charged cement particle appearance, obstruct the composition of slurry flocculation structure, the cement particles useful and release a lot of water. This means less water to reach the same workability. The spherical shape of fly ash particles and to cut bearing lubrication appearance of grouting material mixture particle appearance friction, progress of liquidity. Solid system of particle accumulation effect can again under the premise of satisfying workability by cement dosage. General support after the grouting material goods in the casting, part of the mix water with bubbles released, because the water is less than the density of cement, aggregate density, will rise to support grouting material appearance, however, not all the secrete water table will rise in the pedestal grouting materials yantai bearing grouting material lowest quotation, cement base bearing grouting material cooperation than because the wall effect between the aggregate particles, some water will set in aggregate particle appearance, causes the water in the system is not evenly spread. Obviously, wuhan where sell bearing grouting material of interface transition zone between aggregate and cement slurry water cement is higher, more open space, is advantageous to the porous structure of hydration products, rich in a lot of calcium hydroxide and ettringite crystal. Zibo in shandong province building materials co. , LTD. Produces high strength, no shorten the pedestal after mixed with fly ash grouting material, interfacial transition zone of capillary pore diameter reduced gradually, the crystal of hydration products gradually reduce, so will weaken the weak links in the support grouting material micro structure. Anyway, because of the particle accumulation effect of fly ash, water reducing effect and ash response will make bearing grouting material interface transition zone gradually disappear, pedestal grouting material progress of crack resistance and durability.