What matters should be paid attention to in waterproof construction in winter?

1. Transportation and on-site storage of waterproof building materials in winter

When the outdoor minimum temperature is lower than 5℃, the materials should be insulated by caravan or quilt cover on the way from the factory to the construction site to ensure that the materials will not be frozen during transportation; When the outdoor minimum temperature is lower than 0℃, the materials transported to the construction site should be stored in the on-site warehouse or set up an insulation shed for insulation. When the minimum temperature in the shed or warehouse is above 0℃, it is forbidden to store the materials in the environment below 0℃. The temperature of the storage environment should be monitored by designated personnel to ensure the safety of material storage. In winter construction, the amount of materials should be budgeted according to the actual situation, and it is strictly forbidden to overstock and burn it for a long time.

2. Winter site waterproof construction requirements

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2. Protective layer construction or facade backfill construction: the protective layer construction in the plane area shall be carried out 36 hours after the isolation layer is laid; The isolation layer of the side wall facade should be glued after 72 hours, and the side wall before backfilling should be coated with extruded board and brick retaining wall for protection. Or extruded board protection, should be in strict accordance with the specification requirements for backfill soil and layered compaction.

Three: other precautions for waterproof construction in winter

1, waterproof unit should be designated persons to cooperate with the protective layer construction, and timely remind civil construction personnel to operate carefully, and must be constructed at high temperature to avoid damaging the coating waterproof layer;

2, winter construction, must wait until the concrete reaches the age before waterproof spraying operation, so as to avoid concrete cracks due to temperature differences and other reasons and damage the coating;

3. During winter construction, temperature measuring agent should be used every day to master the change of construction temperature, arrange the construction time reasonably, and do a good job of communication with the general contractor to ensure the construction quality meets the requirements.

Many people think that waterproof construction cannot be carried out in winter, and the cold weather in winter has a certain influence on waterproof materials. In fact, Bian Xiao believes that if waterproof engineering is needed in winter, certain measures should be taken to transport and store waterproof materials, and then standard waterproof construction technology should be adopted in construction to ensure the safety of construction personnel and engineering. In this case, Bian Xiao thinks that waterproof construction can be carried out in winter.