Foam concrete used as sound-absorbing and energy-absorbing material
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As the European Union tries to reduce its dependence on Russian energy, the Russian president recently said Russia would try to shift its energy exports to the east, adding that there was no way for European countries to give up Russian gas immediately.
Russia supplies about 40 percent of the EU's gas, and western sanctions imposed over the conflict with Ukraine have complicated financing and logistical arrangements for existing agreements, hitting Russian energy exports, the report noted.
Russia has been building closer ties with China and other Asian countries as the European Union debates whether to impose sanctions on Russian gas and oil and member states seek supplies from elsewhere, Reuters said.
"So-called partners from unfriendly countries admit that they cannot survive without Russian energy, including gas," the Russian president said in a televised government meeting. There is no reasonable alternative to Russian gas in Europe right now."
He also said Europe was driving up energy prices and destabilizing markets by talking about cutting off Russia's energy supplies. Russia, which produces about a tenth of the world's oil and a fifth of its natural gas, will need new infrastructure to increase energy supplies to Asia, he said.
He ordered Moscow to submit a plan by June 1, including "the expansion of transport infrastructure to countries in Africa, Latin America, and the Asia-Pacific region".
He also sought to clarify the possibility of integrating two pipelines -- the Sakhalin-Khabarovsk-Vladivostok gas pipeline in the Far East and the "Power of Siberia" gas pipeline to China -- into Russia's unified gas supply system. In theory, connecting these routes to larger gas networks could allow Russia to divert gas from Europe to Asia.
Because of the ever-changing international situation, the supply and prices of international bulk concrete foaming agent are still very uncertain.
The open-cell foam concrete is an excellent sound absorption material, while the closed-cell foam concrete is an excellent sound insulation material.
Materials with an average sound absorption coefficient greater than 0.2 are usually called sound absorption materials. There are two kinds of traditional products: fiber (rock mineral wool board, etc.) and porous (foam and foam glass, etc.). Foam concrete is a new type of porous sound absorption material, and its average sound absorption coefficient is 0.8-1.4, which is a strong sound absorption material and can reach the first or second grade standard. It has great market and competitive advantages in the following aspects.
1. Outdoor sound-absorbing materials (road, railway sound absorption barriers)
Foam concrete outdoor sound absorption material market is mainly the sound absorption barriers on both sides of highways and railways. At present, the sound absorption barriers used in roads are mainly sawdust cement board and foam glass board. The former has a low sound absorption coefficient, which can not meet the needs of high-speed railway, and is not beautiful, while the price of the latter is too high. The foam concrete has good sound absorption performance and can meet the sound absorption requirements of any road, but the price is very low.
2. Sound-absorbing materials of indoor walls
Indoor sound absorption has sound absorption ceiling and sound absorption wall. Foam concrete has a great market advantage in wall sound absorption. Compared with rock mineral wool and other fiber sound absorption board, it does not have the disadvantage of itching all over the body during cutting and installation, and the strength is good, and the price is also low. In the subway wall, this product will have a big market, in large shopping malls, station waiting rooms, theatres, conference halls and other building walls also have a huge market.
3. Sound insulation sandwich composite board (partition sheet)
The existing indoor partition is in the wooden keel on both sides of the installation of 5 "10" paper plasterboard, the wall is empty, not sound insulation, not strong, can not be nailed. The foam concrete composite sound insulation board is 5 inches thick and occupies a small space, the two surfaces are colored decorative layers, and the middle is 4 inches thick foam concrete, which has both isolation and sound insulation effect, and is twice as fast as installation, so it is welcomed by consumers.
1. Used in energy absorption in airport protection.
Foam concrete has very strong impact resistance. Ordinary concrete can be broken with a sledgehammer, but it is difficult to break foam concrete. Making use of its energy absorption, a number of high value-added products have been developed, such as airport safety protection foam block, racing track safety protection foam block, road accident prone zone safety protection foam block and so on. When an aircraft or a car rushes out of control out of the runway or road, it enters the foam block protective belt, which stagnates and protects the aircraft or vehicle intact due to the impact absorption performance of the foam block.
2. Used in shooting and explosion energy absorption protection.
Foam concrete has a good absorption effect on bullet shock wave and explosion shock wave, which can greatly reduce the destructive power of shooting and explosion. In terms of anti-explosion, there are two types of products of development significance and civilian use.
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Recently, Russia's deputy prime minister said that the number of countries buying Russian oil is increasing, including Asian countries. Russia will use the "East Siberia-Pacific" pipeline system to increase exports to Asian countries and promote the diversification of oil output.
He also said that Russian oil concrete foaming agent are expected to continue to increase in the future.