During outdoor concrete construction in winter, antifreeze must be added to the concrete. After the cushion is poured, it must be covered with plastic film and promptly covered with thermal insulation cotton. The structural parts must use thermal insulation templates and the exposed surfaces must be covered with plastic film and thermal insulation cotton in time. cover.
For the maintenance of outdoor concrete in winter, when the concrete reaches the condition of removing the formwork, sprinkle water for curing in time and cover it with plastic sheeting. The gaps between the concrete should be bonded with tape to ensure that the moisture in the concrete does not escape outwards. After that, it should be covered with insulation cotton to reach the concrete. Standard curing temperature. Concrete is poured on site and covered with plastic film to prevent moisture loss from the concrete. After the initial setting time is reached, cover with insulation cotton to ensure that the concrete can reach the required strength.
Unlike other seasons, engineering construction in winter has certain disadvantages. Due to the unfavorable construction conditions and environment, winter construction is a season when project quality accidents are prone to occur, especially in concrete projects. Moreover, quality accidents that occur in winter construction have a certain degree of concealment and lag. That is to say, for projects constructed in winter, quality accidents may only begin to appear in the spring. In mild cases, they need to be repaired, or in severe cases, they need to be redone. This will not only bring problems to the project. Loss can also easily affect the life of the finished building.