Concrete, as the core material of modern construction projects, its hardening process directly determines the final strength and durability of the structural body. Under the low temperature environment, the delayed hydration reaction leads to strength development obstruction, freeze-thaw damage and other problems always plague the construction workers. The innovative application of china heating cable technology provides an intelligent solution to this industry pain point. Through precise temperature control, this technology is reshaping the process standard of concrete construction.
 
 
                          China heating cable is a device that can provide a stable temperature, which through the way of resistance heating to the concrete to deliver heat, so as to maintain the temperature of the concrete in a suitable range. Typically consisting of an electrical resistance wire and a protective coating, the heating trace cable can be regulated and controlled as needed.

 When the ambient temperature is lower than 5 ℃, the hydration reaction rate of silicate cement decreases by more than 80%. Experimental data show that the 28-day compressive strength in a 10℃ maintenance environment is only 65% of the standard maintenance conditions, and the initial setting time is extended by 1.5 times for every 5℃ drop in temperature. This temperature sensitivity leads to winter construction has to rely on traditional maintenance shed, both increase energy consumption and affect the construction progress.
  Conventional steam maintenance has a large temperature gradient defect, the temperature difference between the surface and the core can be up to 25 ℃ or more. This uneven heating triggers the concentration of thermal stress, increasing the probability of forming micro-cracks by 40%. At the same time, the closed environment of the curing shed makes the evaporation of water on the surface of the concrete blocked, which is easy to produce the phenomenon of water secretion and reduce the density of the surface layer.
  Thermal calculations show that the energy efficiency of conventional electric blanket heating is only 35%, while the heat efficiency can be increased to more than 85% by contact conduction with the heat tape system. Comparative tests show that the use of accompanied by tropical concrete specimens 3 days strength to reach 70% of the design value, 300% higher than the natural curing. Accompanied by the heat can also make the concrete anti-cracking performance indicators to improve 3-5 times, in the Winter Olympic venues, cross-sea bridges and other major projects to realize the crack rate of ≤ 0.3 / m ² of the ultra-high standard!