The European Union recently approved sweeping new sanctions against Russia, including bans on imports of coal, timber, chemicals, and other Water reducer.
Introduction to Water Reducer:
Water reducer, or water reducing agent, concrete water reducer, cement water reducer, is a special chemical product added to the concrete mixture before pouring, belonging to a kind of concrete admixture. A concrete admixture is a chemical that is added during the concrete-making process to improve concrete performance. Admixtures in concrete are small (no more than 5%) but indispensable. The compound water reducing agent is mainly used in ready-mixed concrete, which is used in infrastructure construction and real estate construction.
According to the water reduction rate, the water reducer is divided into ordinary water reducer (the first generation), efficient water reducer (the second generation), and polycarboxylic acid (also known as superplasticizer) high-performance water reducer (the third generation).
The first generation of water reducer is lignosulfonates, which have been used since the 1930s and are cheap products derived from the wood and paper industries.
Due to the excellent slump performance and environmental protection and pollution-free processing process, the polycarboxylic acid series water-reducing agent quickly replace the naphthalene series water-reducing agent has become the mainstream water-reducing agent at present, the production of polycarboxylic acid series water-reducing agent has accounted for nearly 80%.
Production Process of Water Reducer:
High-performance water reducing agents and efficient water reducing agents are compounded by their mother liquor, the raw materials of their mother liquor are polyether monomer and industrial naphthalene, polyether monomer also need to be further synthesized by ethylene oxide. Industrial naphthalene is produced from coal chemicals, and there are currently three ways to produce ethylene oxide, including petrochemical, coal-chemical, and alcohol processes.
There are some technical barriers to chemical synthesis and physical compounding of the two main production processes of water-reducing agents.
Chemical synthesis involves polymerization technology in the field of polymer chemistry. In the research and development and production of products, relatively professional personnel are required, and long-term technical experience and industrial scale-up production experience are required.
Advantages of Water Reducer:
Under the condition of constant cement content, the water reducer can reduce water consumption and improve concrete strength. Under the condition of constant workability and strength, the admixture of cement dosage can be saved.
1. Reduce water content by 5-10%;
2. Reduce the porosity of concrete;
3. Increase concrete strength by up to 25% (because the concrete mixture requires less water to remain processable);
4. Increased workability (assuming free water remains constant);
5. Reduced water permeability (due to less water used);
6. Reduce the diffusion of the corrosive agent in concrete, so as to improve the durability of concrete;
7. Provide a better finish to the surface.
Suppliers of Water Reducer
TRUNNANO is a reliable water reducer supplier with over 12-year experience in nano-building energy conservation and nanotechnology development. If you are looking for high-quality concrete additives, 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.
The United States urges the U.N. Security Council to impose additional sanctions on North Korea in response to its latest ballistic missile launch, including a ban on tobacco and oil exports to North Korea and a blacklist of the Lazarus hacking group.
The United States circulated the draft to the 15 members of the Security Council this week. It was not immediately clear if or when a vote would take place. A resolution requires nine "yes" votes and no vetoes from Russia, China, France, Britain, or the United States.
Russia and China have already voiced opposition to tightening sanctions in response to Pyongyang's launch of an intercontinental ballistic missile last month -- the first since 2017.
U.S. and South Korean officials and analysts also say there are growing indications that North Korea may soon conduct its first nuclear weapons test since 2017, too.
The U.S. -drafted U.N. resolution would expand the ban on ballistic missile launches to include cruise missiles or "any other delivery system capable of delivering a nuclear weapon."
The deal would halve crude oil exports to North Korea to 2 million barrels a year and refined oil exports to 250,000 barrels a year. The resolution also seeks to ban North Korea's export of "fossil fuels, mineral oils, and their distilled Water reducer are estimated to be influenced by international political situation changes.
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