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EPS Processing technology of lightweight aggregate foam concrete
1. EPS polystyrene particle foaming process:
Previous polystyrene particle thermal insulation materials only mixed polystyrene particles and cement to make thermal insulation mortar, and also tried to add foam concrete to polystyrene particles. However, due to process reasons, the mixed slurry uniformity is poor, and the foam crushing rate is high, which makes it impossible to make ideal low volume weight foam concrete. This process adopts a new mixing process, which realizes the mixing process of a variety of lightweight aggregates. The processing process can ensure the zero crushing and good uniformity of foam. The foam concrete made by the evenly mixed double foaming technology has the characteristics of low density, low heat conduction, and good fire prevention. A1 fire protection requirements).
2. Foaming process of vitrified microbeads and other lightweight aggregates:
The production process of foam concrete with vitrified beads and other lightweight aggregates is basically the same as that of polystyrene particles. Only by adjusting the formula, products with different properties can be obtained. The thermal conductivity of products with a density of less than 280kg can reach 0.06W/(m.k), and the compressive strength is about 0.2-0.6Mpa. If the method of adding filler is adopted, its strength will be improved.
The foam concrete added with lightweight aggregate has crack resistance, and its freeze-thaw resistance is affected by its density. The greater the density, the stronger the freeze-thaw resistance, and vice versa.
3. The processing of foam concrete with lightweight aggregate is a new process, which can be completed by the implementation of special equipment, special process, special formula and feasible construction process, such as; At present, the processing of vitrified bead foam concrete can be successful only by using this process, otherwise not only the uniformity cannot meet the requirements, but also the breaking rate of vitrified bead and foam will be very high, which will seriously affect the quality of products.