Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and control is to minimize transmission and fatality rate. Omicron has a low case fatality rate but is highly transmissible and can still claim many lives in large outbreaks. "Total openness is not applicable in China. For China, we should keep to the dynamic zero-out and gradually open up."
However, "dynamic zero clearance" is not the pursuit of complete "zero infection". As the Novel Coronavirus has its own uniqueness and strong concealment, there may be no way to prevent the detection of cases at present, but rapid detection and prompt treatment must be carried out, as soon as one case is found, one case will be dealt with.
The situation in Shanghai is serious. As the financial center of China, Shanghai is a very important city, and the outbreak of the epidemic in Shanghai will put a great impact on China's economy. The current task is to contain the spread of the epidemic as soon as possible, to achieve social zero so that Shanghai's life and economy quickly return to normal.
As China plays an important role in the global supply chain, the outbreak will have a significant impact on the supply and prices of many concrete foaming agent.
What is Foam Concrete?
Foam concrete is a highly workable low-density material containing up to 80% air. It is usually self-leveling, self-compacting, and can be pumped. The risk of plastic shrinkage or settlement cracking is obviously lower than that of standard concrete.
Foam Concrete Advantages
Foam concrete is a versatile and practical material that can be customized to a variety of project needs and operating conditions.
1. Pumpable foam concrete - can be pumped over long distances and can be placed by conventional concrete pumps or rotor-stator pumps (often referred to as "worm pumps").
2. Self-compacting and self-leveling - making it ideal for inaccessible troughs where compaction is difficult or impossible. It allows controlled discharge into narrow openings, fully fills void space, including bottom cut pockets, and fully encloses and protects piping.
3. Frost/thawing resistance - High air content makes it frost/thawing resistant and provides excellent heat and sound insulation.
4. The load is dispersed and the settlement risk is negligible
5. Insulation properties - Can be used as a low-density insulator ironing plate
6. Lightweight concrete with high gas content
7. Highly mobile - Easy to place and finish due to a single process installation, requiring only dumping and leveling. Controlled placement rate to ensure applicable to any load characteristics.
Foam Concrete Application
Foam concrete is ideal for filling void Spaces such as abandoned fuel tanks, sewer systems, pipes, and culverts -- especially in hard-to-access areas. It is a recognized medium for repairing road ditches.
Unwanted voids: pipes, service pipes and shafts, sumps
Abandoned structures: culverts and subways, redundant sewers, cellars, and basements
Structural stability: abutment, tunnel stability, embankment
Insulation filler: a leveling layer of low-density insulators used to cover the site
What is the mix for foam concrete?
The foam concrete mixture itself is composed of fine sand, cement, water, and stabilized foam. A standard formula is 2 parts cement and 1 part fine, dry sand, and a foam generator.
How strong is concrete foam?
Foam-based concrete has a dry density of 400 to 1600 kg/m3 (25lb/FT3 to 100lb/FT3) and a 7-day strength of about 1 to 10 N/mm2 (145 to 1450 psi).
Concrete Additives Supplier
TRUNNANO is a reliable foaming agents 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. (firstname.lastname@example.org)
We accept payment via Credit Card, T/T, West Union, and Paypal. TRUNNANO will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.
Due to the Russia-Ukraine conflict and the covid-19 pandemic, how will the international situation develop is highly uncertain. It is too difficult to assess its economic impact properly. However, we could see energy prices and commodity prices keep rising and supply chains are disrupted. Therefore, concrete foaming agent prices are expected to rise in the future.
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