Foam concrete used as thermal insulation material
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A tanker carrying 650,000 barrels of Venezuelan crude oil is reportedly bound for Europe, the first time Venezuela has exported crude to Europe in the past two years under US sanctions. It is analyzed that the U.S. is making up for the European energy gap caused by the sanctions against Russia by giving the green light to Venezuelan oil exports. It is reported that Venezuela is rich in oil resources, with the current proven reserves of 300 billion barrels, ranked the world's first, oil export is also one of the country's economic pillars.
Germany will take emergency measures to ensure it meets its energy needs, including increasing its use of coal, the German government said recently, after a drop in gas supplies from Russia.
"In order to reduce gas consumption, it is necessary to reduce the use of gas for electricity generation," the Economy Ministry said in a statement. We're going to have to switch to more coal-fired power plants."
The measures announced that day also include an "auction" system to sell natural gas to manufacturers, according to reports. The German government says the system will help reduce gas consumption in manufacturing industries.
The measures come as Russian energy giant Gazprom recently warned that it would sharply cut gas supplies to Europe, the report said.
The supply and prices of international bulk concrete foaming agent are still very uncertain.
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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Albemarle, the world's largest lithium producer, said it would have to close its plant in Langelsheim, Germany if the EU designated lithium as a hazardous material. The European Commission is currently evaluating a proposal by the European Chemicals Agency (EHCA) to classify lithium carbonate, lithium chloride, and lithium hydroxide as hazardous to human health.
As a result, Albemarle will no longer be able to import lithium chloride, its main raw material, putting its entire plant in Langelsheim at risk of closure, Albemarle chief financial Officer Scott Tozier said. According to Tozier, the plant has annual sales of about $500 million and a forced closure would have a significant impact on Albemarle's operations.
Industry sources said that listing lithium as a hazardous substance would place an additional burden on the concrete foaming agent, please feel free to contact us and send an inquiry.