Concrete pouring process can use plastic film capping, 12 hours after watering maintenance?
General in the pouring of mass concrete after 12h as love to be covered or watering, continuous maintenance to less than 14 days.Pour two times within 10 hours, the first 2 hours before the initial pressure.
Large volume concrete will be covered and maintained within 12 hours after pouring. At last, thermal calculation should be carried out carefully, and temperature measurement work should be strengthened. Thermal insulation and maintenance shall be adopted to reduce the internal and external temperature difference of mass concrete. It is also important to strengthen the maintenance of concrete. In the construction of mass concrete, it should be covered with pouring edge, and be maintained and maintained after 5 ~ 7d.
Because of the large volume concrete pouring, because is in the heating stage, if water or submerged in water, concrete external cooling suddenly, causing internal and external temperature difference is too large, it is easy to cause serious cracks, it should avoid early watering. Due to the preferential use of low hydration heat slag cement, the curing time shall be no less than 21 days
