In summer, the high temperature, low humidity and drying quickly, which caused the new pouring concrete occurred condensation and strength reduction fastly and other negative influences. So it requires more carefully when pouring the concrete. To analysis the reasons of adverse factors, take effective technical measures to eliminate the bad influence, or let the damage minimized, that is necessary.
Now, let us to tell you what is the best way for construction.
The negative influence to the concrete in hot climate
When the temperature of the concrete rising, it should increase water to make sure the slump scope of the concrete when it is under working. And meanwhile, with the temperature rising, the loss speed of the concrete slump will become fast. So it should re-add the water into the concrete mixer when transporting the concrete from batching plant to the construction site. Both of these two condition lead to the water consumption raise, resulting in an increasing of the shrinkage and decreasing in its strength.
Concrete transportation will become more difficult because of higher temperature to accelerate condensation. When the humidity is low or the wind speed is higher, the water loss is even much. If the concrete needs air, the high temperature will make the air content more difficult to control. As the high temperature will reduce the air content, so the amount of air entraining agent should increase. Even if to increase the cement to compensate for the increase of the amount of water, the quality of the hardened concrete may still have adverse impact.
In order to improve the quality of concrete under hot weather, make detailed construction plans and guarantee the implementation. By carefully selecting raw materials for the preparation of concrete and construction methods, it can also reduce some adverse effects. In addition, it should also take measures to improve the construction quality in summer when do the concrete construction.
Above points are our attention to everyone under the concrete construction, hope it is useful. Xiangtan Huaxing Material Co., Ltd, will continue to update the series articles of《The best concrete construction plan in Summer 》. Hope your continue focus, thanks!