Accidents caused by fires caused by building exterior walls are frequent, and the exterior wall insulation technology commonly known as “warm house” has entered people’s field of vision. now
We are undergoing a revolution that has replaced the “thick cotton clothing” that used to be “wrapped” around the building with “warm clothing” through the integration of the insulation structure.
Yesterday morning, at the construction site of the Mengjin County Wenbo Center, workers were clinging whiteboards to the steel structure that was about to be poured concrete. A worker told reporters, “These whiteboards are new thermal insulation integrated wall materials. The reporter noticed that from the appearance alone, this whiteboard is not much different from the traditional insulation board.
In order to find out, the reporter came to the company’s production workshop, a large mixer that was running made a roaring sound, and the person in charge of the company told the reporter that the machine was mixing the core part of the thermal insulation integrated wall material –
, and then the insulation material is poured into the template that has been fixed and formed by the three-dimensional steel wire mesh, and when the material dries, the wall material called EPC composite insulation board becomes a wall.
On the other side of the workshop, blocks of gray cuboid blocks are coming out of the “furnace”, the bricks are filled with gray-white foam-like material, and the blocks at both ends are gray-red. The reporter picked up a piece and felt light.
The person in charge told reporters that the cuboid block is actually an HB composite insulation block used with the EPC insulation board. During construction, the insulation board is directly used as a formwork for cast-in-place concrete without demolition, and is used on the outside of the main structural beams, columns and shear walls, becoming the exterior wall and roof part, while other walls are built with blocks.
Advantage test the air conditioning in the house consumes one-third of electricity
The person in charge pointed to the “inner core” and told reporters that it is these filled insulation cores that form a “self-insulation system”.
“The insulation material that was originally wrapped around the perimeter of the building was crumbled and mixed in the insulation board, and filled in the block cavity, which not only served as insulation, but also provided fire prevention.” He explained that the concrete blocks cannot be burned, so naturally the insulation material in each block is cut off, forming a fireproof layer.
So, how effective is it to insulate? Reporter in Henan Province
Energy efficiency in buildings
According to the parameters provided by the “Henan Province Public Building Energy Conservation Design Standard Implementation Rules”, the annual energy consumption of the reference building is 130.63kw·h/㎡, while the annual energy consumption of the measured building is 129.8kw·h/㎡. Referring to the annual power consumption of air conditioners of 7826kwh, the measured annual power consumption of air conditioners is only 4915kwh, saving one-third.
According to a research report, in areas with cold winters and hot summers, after using integrated insulation technology, householders can save 40% of heating bills by household measurement.
Eco-friendly raw materials come from recycled waste
On the side of the workshop, a large number of foam waste products are piled up, including many foam strips and foam boxes in gift boxes. These are the raw materials produced in the workshop.
“In order to collect these waste products, we have also established a multi-channel waste recycling system, mainly recycling used EPS, XPS and PU.” He said that waste EPS is actually a waste plastic packaging material in life, such as packaging foam blocks, foam boxes, etc., the main component is polystyrene or polyester particles. He pointed to the construction waste in the corner of the factory and said, “This is XPS, which is the construction waste left over from house demolition, such as extruded plastic board can also be used as raw materials.” “Waste PU refers to the insulation layer in the old refrigerator, and after many old refrigerators are processed, electrical components are often recycled, but the insulation materials are discarded.”
“These waste materials, if disposed of arbitrarily, will cause white pollution.” He said that the use of waste foamed organic materials and fly ash in the production process, no pollution, no clay, the use of burning-free process, not only will not produce waste water, waste gas, waste residue, but also can solve the problem of waste polyurethane difficult to treat.
By 2020, affordable housing will first take off thick cotton clothing
It is reported that thermal insulation integrated wall materials have been promoted and used in Shandong, Anhui, Fujian and other provinces, and at present, Luoyang has also issued the “Implementation Opinions on the Promotion and Application of Building Insulation and Structural Integration Technology”. By 2020, the proportion of civil new construction area using building insulation and structural integration technology in the city will strive to reach more than 50%, of which the proportion of construction area of affordable housing and government-invested public welfare civil construction projects will strive to reach more than 80%.