Principle of Standard Curing Method for Steam Cured Concrete

The concrete block is cured in the standard curing room, with the indoor temperature kept at 20 2℃ and humidity not less than 95%, and the concrete block is cured in this environment for 28 days, which is called the standard curing of concrete block.

Steam curing concrete equipment

The principle of standard curing method for steam curing concrete is as follows:

1, method. Standard curing concrete should be allowed to stand for 65438 0 ~ 2 days and nights at the temperature of 20 5℃, and then removed by number; Immediately after demoulding, it is put into a standard curing room with a temperature of 20 2℃ and a relative humidity of over 95% for curing; The concrete specimen in the standard curing room should be placed on the bracket with the spacing of 10 ~ 20 mm, and the surface of the specimen should be kept moist, and it is not allowed to be washed directly with water.

2. principle. In winter construction, the temperature is low, the air is dry, the concrete hardens slowly, and the strength is difficult to meet the expected requirements. The main functions of steam curing concrete are heating and moisture retention. When the outside temperature drops to freezing point, the water in concrete will freeze, and the volume of water will expand rapidly in a short time after freezing, destroying the structure of concrete. At the same time, coupled with the dry climate, concrete will form cracks after hardening.

Standard curing method of concrete

Using steam generator to cure concrete, high temperature steam can not only increase the temperature of air in curing room, but also provide humidity for normal hydration reaction of concrete specimens, promote concrete hardening and enhance its strength.

To sum up, it is the principle of standard curing method for steam curing concrete.