3/28/2013
No chance for rust and cracks
Cracks in the concrete make components susceptible to external influences and thus to corrosion. They form when the material is not subjected to the correct heat treatment during the curing process during the production of precast concrete parts.
Weckenmann knows these difficulties and provides a remedy. The company supplies hot-air heaters to heat the air curing chamber, to which they are docked from the outside, uniformly and gently, while at the same time the continuous air flow keeps the temperatures in the drying chamber at a consistent level. Due to the permanent air flow and humidity control there is no moisture saturation of the air, preventing the formation of any rust on the formwork or pallets. The air also does not dry out too much either, so that the concrete retains the necessary water for hydration. The latter is essential to prevent the formation of cracks in the concrete surface.
Weckenmann hot-air heaters can be operated with gas, heating oil or electricity as well as with renewable energy sources such as natural gas or waste heat recovered from the plant itself. Their capacity is between 32 to 1,200 kilowatt hours.
With the heating systems, the curing times of the concrete components are significantly decreased while maintaining high quality. This means the system can be operated in multiple layers, which in turn increases its profitability bringing the positive spin-offs of just-in-time production with it.
The Weckenmann heaters are distinguished by their long service life, low maintenance costs and high efficiency. They can be flexibly adapted to the particular needs and conditions of the customer and are retrofitted to existing plant systems quickly and inexpensively.
