Bearing grout grouting material grouting agent

Li 13520557496 1 early strength, high strength 1 day compressive strength ≥20Mpa; 3 day compressive strength ≥30Mpa; 28-day compressive strength ≥55Mpa. 2, close contact between the micro-expansion to ensure that the equipment and infrastructure, the second filling of no contraction. 3, gravity high fill all the gaps, secondary grouting equipment to meet the requirements of 4, to overcome the resistance to segregation Segregation in field use due to the amount of water above normal. 5, resistance to cracking due to the amount of water use in the field of uncertainty, ambient temperature curing conditions of uncertainty and other factors cracking phenomenon. 6, durability million times by 50 freeze-thaw cycle fatigue test experiments no significant changes in intensity. 30 days immersed in the oil intensity has improved significantly. 7, winter construction -10 ℃ temperatures allow for outdoor construction.