In the cold winter, controlling the construction temperature of the grout is the key to ensuring the quality of the project. Here are some suggestions to help you control the construction temperature of your grout during the winter months:
1.Know the local climatic conditions: Before winter construction, understand the local climatic conditions, including minimum temperature, wind speed, humidity, etc. This helps you develop appropriate construction plans and measures.
2.Preheating equipment: Before starting construction, ensure that all equipment is preheated to reduce the temperature difference between the equipment and the environment. This helps to reduce equipment damage and extend its lifespan.
3.Thermal insulation measures: During the construction of grout, appropriate thermal insulation measures should be taken, such as covering the surface of the grout with thermal insulation materials, to reduce heat loss. At the same time, ensure that construction personnel wear appropriate warm clothing to avoid affecting the quality and efficiency of construction due to the cold.
4.Control the mixing time: During winter construction, the mixing time of the grouting material should be extended appropriately to ensure that the materials are fully mixed and reach the appropriate construction temperature. At the same time, pay attention to the temperature of the mixing equipment to ensure that it is in a suitable working condition.
In the initial stage of pouring, due to the dissipation of hydration heat, the surface causes considerable tensile stress, and the surface temperature is also higher than the air temperature at this time, and the template is removed at this time, and the surface temperature drops suddenly, which inevitably causes a temperature gradient, so that the tensile stress is added on the surface, and the hydration heat stress is superimposed, coupled with the dry shrinkage of the grouting material, the tensile stress of the surface reaches a very large value, and there is the danger of causing cracks, but the light insulation material can be covered on the surface in time after the template is removed.