Steam curing of concrete products. General provisions.
Formed on giperpressah bricks, blocks, curly paving elements (paving slabs), road and sidewalk curbs may be subject to steam treatment at high temperatures.
In order to accelerate the timing of achieving strength, reduction of production areas and reduce pallet park and so on. Molded articles are usually subjected to heat and humidity treatment.
Almost every type of concrete, depending on the materials used and how the optimal cooking time of preincubation before the heat treatment is assigned empirically.
Accelerated concrete hardening by steam treatment – it is a well-known method of obtaining high initial strength of concrete. Dann technology are especially useful for forming so-called brick and block giperpressovogo. The most common currently used technologies as follows:
- steaming at atmospheric pressure;
- treatment with warm water;
- treatment with boiling water;
- steaming at high pressure (autoclaving).