In the scorching summer, the high temperature and high humidity environment pose significant challenges to the construction and maintenance of concrete. As an important material in construction projects, the quality of concrete directly affects the safety and durability of the entire project. Freeman will provide you with a detailed analysis of the curing strategy for summer concrete to help you ensure worry free project quality.

Strictly control the construction environment

Firstly, in the high temperature environment of summer, the temperature of concrete entering the construction site must be strictly controlled below 60 ℃. High temperature can cause rapid evaporation of moisture inside concrete, affecting the normal progress of hydration reaction, thereby reducing the strength and durability of concrete. Therefore, necessary shading and cooling measures should be taken during transportation and pouring, such as covering transportation vehicles with sunshade tarpaulins or pre cooling the formwork before pouring.

Timely watering and maintenance

After the concrete pouring is completed, watering and curing should be carried out immediately. The purpose of watering maintenance is to keep the concrete surface moist, prevent rapid evaporation of moisture, and ensure the normal progress of cement hydration reaction. Watering and curing should start before the final setting of the concrete, and it is generally recommended to do so within 12 hours after pouring. When carrying out specific operations, materials with strong water absorption capacity (such as burlap bags, grass curtains, etc.) can be used to lay and hang on the surface of the components, and then evenly sprinkle water with a sprayer to keep the surface moist.

Cover with plastic film

To further ensure the humidity inside the concrete, a layer of plastic film should be covered after watering and curing. Plastic film has good sealing properties, which can effectively prevent water evaporation and keep the moisture inside the concrete from losing. At the same time, plastic film can also play a certain insulation role, reducing the influence of external environment on the temperature of concrete. When covering plastic film, attention should be paid to compressing its edges to ensure good sealing.

Special structural maintenance methods

For tall or large structures such as chimneys and bridges, due to their large surface area and difficult maintenance, the method of spraying plastic film curing solution can be used for maintenance. The health solution forms a protective film on the surface of concrete, which has multiple effects such as moisture retention, crack prevention, and pollution prevention. When spraying health solution, it is necessary to ensure that the coating is uniform and without omissions to improve the curing effect..

Extend the maintenance time

In the high temperature environment of summer, the strength development of concrete is relatively slow, so the curing time should be appropriately extended. Generally speaking, the curing time for concrete is not less than 7 days, and for concrete using Portland cement, the curing time should be strictly controlled. During the curing period, the moisture condition of the concrete surface and the sealing of the film should be regularly checked to ensure the effective implementation of curing measures.

The maintenance work of concrete in summer is an important link to ensure the quality of the project. By strictly controlling the construction environment, timely watering and curing, covering with plastic film, adopting special structural curing methods, and extending the curing time, we can effectively address the challenges brought by high temperature and humidity environments to concrete construction and curing, ensuring the quality and service life of concrete. Freeman hopes that the sharing of this article can be helpful to you, let's work together to safeguard the quality of construction projects!