What are the typical features of high iron pedestal grouting material and pedestal grouting material construction and maintenance methods

Pedestal grouting support grouting material price we all know, early strength type bearing grouting material is a product of professional beat and it at a reasonable level points of high strength aggregate as aggregate, high strength cement as in combination with the seam an agent, polymer toughening the seam an agent, complementary with high flow, micro swell, segregation, cracking resistance and beautiful seam an agent, such as admixtures such as accurate. Specializing in the production of dry mixing proportion. So we should still don't know, what are bearing grouting material characteristics, pedestal grouting material construction and maintenance way is what? Here, let's just as well to follow small make up together to see the specific content. Grouting material has what characteristics: 1, good liquidity, gravity leveling, without vibration, pressure, construction speed is quick, convenient. 2, it is very late hours with high strength, high strength, not shortened. According to the different construction temperature, can obtain 20-2 hours 40 mpa compressive strength, flexural strength is high. 3, with micro swelling performance and excellent resistance to cracking performance. 4, used to wide temperature range and in - 5℃～- 35 ℃ under the condition without any for thermal insulation or cooling way can the construction. Under the condition of high temperature or low temperature, can ensure the strength and construction liquidity demand. 5, used to repair, track grouting filling, support especially suitable high speed railway bridge bearings or trajectory filling etc. Can also be used for concrete beam local leveling or repair of the concrete pier. What pedestal grouting material construction and maintenance method is: 1, 24 h before the construction of the bottom should be sufficient moisture, grouting should ensure that the bottom without MingShui; 2, before the grouting should be set template and check the sealing, avoid the course of grouting slurry, grouting quality; 3, choose forced mixer mixing: according to the introduction of water metering well water, mixing for about three-quarters of the water first 1 ~ 2 minutes, and then to the rest of the water for mixing evenly, all mixing time control within 5 minutes. A mixing volume shoulds not be too much to used up within 20 minutes advisable. 4, use hand electric drill mixing: mixing water and the first three-quarters of material into the bucket, mixing after 30 seconds then pour the remaining material mixing evenly, on the basis of the electric hand drill is not the same as the power and speed, all mixing process needs about 1 ~ 2 minutes; Evenly mixing the grouting material if there are a lot of bubbles, appearance should let stand for 1 ~ 2 minutes, after waiting for air bubbles eliminate again for grouting; 5, after the grouting show part of the grouting material should be timely cover plastic film or wet sack for moisturizing maintenance, after waiting for grouting material hardening for sprinkler maintenance, to ensure that wet grouting material appearance, maintenance time should not less than three days. For bearing grouting material? What are the characteristics, as well as bearing grouting material construction and maintenance way is what the common sense, small make up for our story so much. Normally, pedestal grouting material used in railway bridge bearing device of high quality cement base composite material, at present, the domestic bearing grouting material because of its chose a variety of high performance to add the seam an agent, the appearance after completion of exceptionally smooth level off, overcomes the traditional mortar, defects such as crack, fall off, have high strength, shorten, high wear resistance and construction convenience features.