Foam concrete used as thermal insulation material
From April the French government will reduce fuel taxes slightly to ease the burden on consumers.
Warned of possible energy shortages in France by the end of the year and called on the French to conserve electricity and gas from now on, saying that if nothing was done, The energy situation will be tough this winter. Some experts say that there are two main reasons for France's energy crisis: first, the conflict between Russia and Ukraine affected the gas market and caused supply tension; The second is a safety review of France's newest nuclear power plant, which may lead to a reduction in output this year. In order to alleviate the energy crisis, the whole French society needs to be mobilized, whether it is the industrial sector, the tertiary sector or every French citizen. Now it is urgent. Rising fuel prices may also have an impact on shipments of the concrete foaming agent.
Foam concrete contains a large number of closed pores, the air in the pores is a good adiabatic medium, which can cut off the heat exchange. The lower the density, the more pores, the better the adiabatic property. Especially when the density is less than 500 μ m? The thermal conductivity of foamed concrete is less than 0.09w/m.k. Generally speaking, the material with thermal conductivity lower than 0.23 is called thermal insulation material, and the thermal insulation material lower than 0.14w/m.k is called thermal insulation material. Most of the foamed concrete is lower than 0.14w/m.k, and most of them are lower than 0.09w/m.k, so it is a good thermal insulation material.
1. Used for thermal insulation in buildings
Building thermal insulation if all the application of foam concrete, including roof thermal insulation layer, wall insulation layer, floor heating insulation layer (or cushion), is equivalent to using foam concrete to wrap the whole house, one square meter building area needs 0.2m3~0.5m3 foam concrete (roof, floor, four walls are calculated by 5cm insulation layer), a building with a building area of 10,000 square meters, you need foam concrete 2000m3~5000m3.
2. Used for building thermal insulation block
Non-load-bearing thermal insulation block: density 300kg/m3, thermal conductivity 0.05~0.08W/ m k, compressive strength 0.5MPa. The thermal insulation effect of this kind of block is the most ideal, and it is the product with the largest demand for building energy saving and the most lacking in the market. Ultra-light block is the development direction of foam concrete, it can achieve integrated thermal insulation, the wall itself can meet the requirements of 65% energy saving, save the external thermal insulation treatment, and reduce the building thermal insulation cost by 40%, 50%.
Load-bearing thermal insulation block: density 1000~1200kg/m3, compressive strength greater than 10MPa, thermal conductivity 0.18-0.22; it is lighter than red brick, but the thermal insulation is twice as high. This kind of block can completely replace red brick for load-bearing wall, it and thermal insulation, load-bearing, lightweight three functions in one, to replace red brick has great advantages, has a larger market.
3. Used for cold storage heat preservation
Foam was originally used in cold storage thermal insulation, but foam concrete pouring or masonry insulation was used in developed countries because it is easy to aging, shrinking and flammable. It mainly adopts integral cast-in-place, roof, wall, ground all foam concrete cast-in-place, no cold bridge, no gap.
4. Used for thermal insulation of industrial furnace
The main products are fire-resistant and thermal insulation bricks.
Large industrial furnaces such as iron and steel plants, glass plants, ceramic plants, non-ferrous metal smelters and cement calcination kilns need to build a layer of thermal insulation refractory brick on the outside of refractory bricks in order to reduce energy consumption. The original use of floating bead brick, alumina foam brick, the price is very high, now foam concrete refractory brick has replaced the high-priced traditional products, the price is less than half, very competitive.
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Maximo Pacheco, chairman of Codelco, Chile's state copper company, said in a recent interview that he expects copper prices to remain 'very strong in the future,' despite the recent drop. Codelco is the world's largest copper producer.
Copper prices suffered their biggest weekly drop in a year this week on concerns that tightening policy by central banks will dampen global growth and reduce demand for industrial metals. With its wide range of industrial and construction uses, copper prices are often seen as a bellwether of economic activity.
London copper closed at $8,325 a tonne on Friday after touching $8,122.50 a tonne, down 25 per cent from its Peak in March and its lowest level since February 2021. In addition to copper, other industrial metals also fell sharply. Tin, for example, fell nearly 15% at one point on Friday, bringing its losses for the week to about 25%.
"We may be in a temporary short-term turbulence, but what is important is the fundamentals and the balance of supply and demand [currently] looks very favourable for those of us with copper reserves," Mr. Pacheco said. Chile is the world's largest copper producer.
Mr. Pacheco adds that in a world where copper is the best conductor and there are not many new reserves, copper prices look very strong because the future is very favourable for electrification.
Luoyang Tongrun Nano Technology is a trusted chemical supplier and manufacturer providing high-quality chemicals and Nanomaterials. If you are looking for the concrete foaming agent, please feel free to contact us and send an inquiry.