Main Performance of Foam Concrete

The African Development Bank will finance $25 billion by 2025 to support Africa's fight against climate change, the bank's president said at the bank's annual meeting in Accra, Ghana.  

He noted that climate change has had many negative impacts on the continent, causing natural disasters such as droughts, cyclones, and floods. Climate change costs Africa between $7 billion and $15 billion a year. "Africa has no choice but to address climate change."  

To ensure Africa's food supply, the African Development Bank has delivered climate-friendly seeds to 12 million farmers in 27 countries in the past two years under the "Technology for Agricultural Change in Africa" program, he said.  

In the area of renewable energy, the African Development Bank is implementing a $20 billion "Desert Power" initiative in the Sahel that is expected to power 250 million people, he said.  

US President Joe Biden recently wrapped up his five-day trip to Asia with a summit of leaders of the "Quad" security Dialogue.  

Biden has promoted a number of economic and security cooperation initiatives during his visit aimed at deepening ties with Indo-Pacific Allies and partners in response to China's growing influence in the region. Some analysts in the United States believe the most significant announcement may be an initiative to share maritime information to combat illegal activities. But other experts say Biden's move sets a good framework for more security cooperation, though it remains to be seen whether concrete action will follow.

Affected by several factors, the supply of the concrete foaming agent is erratic and thus its prices are expected to go higher in the future.

Lightweight 

Foam concrete has a low density. In practical application, the density grade of ordinary foam concrete is 300 kg/m3~1200kg/m3. In recent years, ultra-lightweight foam concrete with low density has also appeared, but it has not been widely used in construction engineering. In practical engineering, the density of foam concrete can be reduced to 200 kg/m3~700 kg/m3. 

Due to the low density of foam concrete, it is applied to the building's inner and outer walls, layers, layers, columns, and other parts, can reduce the weight of the building by about 25%, and some can even reduce the weight of up to 34%. In addition, the bearing capacity of structural members can be improved by using foam concrete instead of ordinary concrete. Therefore, the rational use of foam concrete in construction engineering can not only ensure the durability of the building and the bearing capacity of the structure, but also greatly reduce the cost of the project, and has significant economic benefits and broad market prospects. 

Good insulation performance 

The good thermal insulation performance of foam concrete is determined by its internal structure. By observing the internal structure of foam concrete, it can be found that the foam concrete is filled with a large number of closed and uniform small round holes.  These pores maximize the fixation of air, resulting in low thermal conductivity and good insulation. The excellent thermal performance of foam concrete is not possessed by ordinary concrete. The thermal conductivity of foam concrete with common density grade of 300kg/m3~1200kg/m3 is 0.08W/(m·K)~0.3W/(m·K). If this kind of foam concrete is widely used in building roofing material and wall material, it will produce a good energy-saving effect.

Excellent sound insulation and fire resistance performance

As a kind of porous material, foam concrete contains a lot of closed pores and has good sound insulation performance. Therefore, foam concrete can be widely used on building floors, highway sound insulation boards, underground building top floors, and other building parts, as a sound insulation layer. At the same time, foam concrete also has the general characteristics of inorganic materials, that is, not easy to burn, and has good fire resistance. A large number of research data show that the dry bulk density of foam concrete is in the range of 500 kg/m3 to 900 kg/m3, the compressive strength is in the range of 2.5 Mpa-7.5 MPa, the fire resistance of foam concrete can reach 2.7h, the sound insulation performance can reach 20dB, and the impact resistance can reach 100dB. It is a kind of high-quality soundproof refractory material that can be promoted vigorously. 

Good seismic performance 

Because of its special porous structure, foam concrete has the characteristics of low density, lightweight, and low elastic modulus. These characteristics make the foam concrete structure bear less seismic force and the propagation speed of vibration waves are much slower than that of the ordinary concrete structures. According to seismology, the longer the seismic period, the faster the shock energy is absorbed by a building structure. Therefore, foam concrete has an excellent damping effect. Appropriate application of foam concrete in specific parts of construction engineering can effectively improve the seismic performance of buildings, and enhance the safety and robustness of seismic buildings. 

Foam concrete not only has a variety of excellent performance, but in the production process can also be mixed with a large number of industrial waste, not only effective use of resources, waste into treasure, conducive to environmental protection but also greatly reduce the cost of foam concrete.

Concrete Additives Supplier

TRUNNANO is a reliable foaming agent supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.

If you are looking for high-quality CLC foaming agents, please feel free to contact us and send an inquiry. (sales@cabr-concrete.com)

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Recently, the first press conference of the Boao Forum For Asia Annual Conference 2022 was held. Two flagship reports were released at the conference: "Asia's Economic Prospects and Integration Process 2022" and "Sustainable Asia and the World 2022-Green Transformation in Action in Asia".

The flagship report points out that the global economy will recover in 2021, and the pace of economic integration in the Asia-Pacific has not stopped even in the face of the impact of COVID-19. The Asia-Pacific region has provided new impetus for the world's economic recovery and institutional building.  

The report gives an outlook on the Asian economy, noting that a number of factors will affect Asian economic growth. For example, mutated strains such as Delta and Omicron have become more transmissible, and many economies are experiencing epidemic peaks again. The Ukraine crisis has triggered geopolitical changes in Asia and Europe, leading to higher commodity prices, which may affect the global energy supply and energy transformation.

The report pointed out that the Asian economy will still be in the process of recovery in 2022, but the growth rate may moderate. According to the report, Asia's economic growth in 2022 is likely to be lower than the current IMF forecast, which is projected at 4.8%.

Affected by several factors, the supply of the concrete foaming agent is erratic and thus its prices are expected to go higher in the future.

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