The main characteristic of CGM pedestal grouting material and the construction and maintenance

Bearing CGM grout material bearing grouting CGM pedestal grouting material factory main characteristics 1. Plastic expansion and hardening siping pedestal grouting material two layer effect, ensure high useful bearing surfaces ( EBA） 2. Large activity, no segregation and no bleeding, good construction 3. Wide water scale, adjust the mixing water can be appropriate activity 4. Activity loss is small, long operation time 5. 2 h, the compressive strength is greater than 20 MPa, 24 h flexural strength is greater than 10 MPa 1 construction and maintenance. 24 h before construction should be sufficient moisture, bottom grouting should ensure that the bottom without MingShui; 2. Grouting should be good for template and inspection before sealing, prevent leak slurry during grouting and h40 pedestal grouting material influence the quality of grouting grouting method; 3. Selects the force bearing pedestal grouting material experiment way of mixer mixing: in accordance with the recommended water metering well water, mixing for about three-quarters of the water first 1 ~ 2 minutes, and then for the rest of the water for mixing evenly, the 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 barrel, mixing 30 seconds and then pour the remaining material mixing evenly, based on the electric hand drill power and speed, the mixing process needs about 1 ~ 2 minutes; Evenly mixing the pedestal 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 grouting exposed part of the pedestal grouting material should be timely covering plastic film or wet sack for moisturizing maintenance, after waiting for bearing grouting material hardening ( Requirements 1 at 20 ℃. 5 hours or so) For sprinkler maintenance, to ensure that support wet grouting material appearance, maintenance time should not less than three days. 6. On the basis of site construction temperature is different, our company will be in accordance with the requirements of the customer to adjust the formula of the bearing pedestal grouting material. After the adjustment the product specification in the laboratory conditions, 20℃） Test will show the phenomenon of condensation faster or slower ( Site construction does not affect the infusion, and a suitable strength development speed) 。 7. The strength of the bearing pedestal grouting material growth is closely related to the environmental temperature, winter construction should be chosen when mixing hot water and heat preservation maintenance necessary measures, such as to get better early strength. 8. More detailed construction guidance can consult the CGM pedestal grouting material series product specifications of the relevant provisions.