Hole pressure slurry truly micro expansion - need to cost Prestressed pipe pressure slurry

Prestressed pipe pressure slurry prestressed pipe pressure slurry is mainly used for precast beam zhang method after grouting, or cast-in-place beam! But for big grouting volume and large surface grouting material, wipe the surface pressure plastic thin after grouting material and the proportion of water how many membrane cover, after grouting material hardening, appropriate USES water storage curing or covered by a wet sack on the prestressed pipe pressure slurry grouting method, grouting material wet surfaces, curing time should not less than 14 d.     2, not easy to water, such as wall structure, appropriate is set from the top of the water spray, time is not easy to dismantle less than 3 d, open mold after appropriate is used close to a wet sack on the wall covering, watering and maintenance, keep wet grouting material surface, the maintenance time is not less than 14 d.     3, the winter construction, the grouting material casting, should immediately covered with plastic film and thermal insulation material, curing period should not be less than 14 d. For the wall with open mold maintenance should not be less than 7 d.     Pressure slurry by expansion mortar construction shall meet the following requirements;     1, with the expansion of mortar water grouting material ratio should be 0. 14 ~ 0. 16, stirring time should not be less than 3 min.     2, expansion of mortar shall not be used mechanical vibrating, appropriate USES artificial dao exclude bubbles, each part should be a direction of the casting.     3, casting wuxi after completion of equipment foundation grouting material, should immediately with a wet sack covering exposed parts, such as mortar should be watered immediately after curing, curing period should not be less than 7 d.     4, grouting with expansive cement mortar pouring and curing period, the minimum temperature below 5 ℃, insulation moisture curing measures should be taken.     Do what is best, choose the prestressed pipe pressure slurry is optional paste! ！ ​