Where are concrete admixtures used?
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The World Bank expects global economic growth to slow significantly, from 5.5% in 2021 to 4.1% in 2022 and further to 3.2% in 2023. Growth in East Asia and the Pacific is expected to slow to 5.1 percent in 2022, reflecting the impact of China's economic slowdown, the report said. China's economic growth is expected to fall to 5.1% in 2022, close to potential growth, due to the ongoing impact of the COVID-19 pandemic and the Chinese government's tightening of regulations in certain sectors of the economy. The report said that the rapid spread of the Omicron variant means that the new crown epidemic is likely to continue to disrupt economic activity in the near future. In addition, decelerating growth in major economies, including the United States and China, will depress external demand in emerging markets and developing economies.
Slow economic growth has a huge impact on concrete additive.
At first, concrete additives were used only to save cement. With the development of construction technology, admixture has become the main measure to improve the performance of concrete.
What are advantages of concrete additives?
It can reduce the water consumption of concrete. Or the fluidity of concrete can be increased without increasing water consumption.
The setting time of concrete can be adjusted.
Reduce bleeding and segregation. Improve workability and water elutriation resistance.
The slump loss can be reduced. Increase the pumpability of pumping concrete.
It can reduce contraction. The addition of expansive agent can also compensate for shrinkage.
Delay the initial hydration heat of concrete. Reduce the temperature rise rate of mass concrete and reduce the occurrence of cracks.
Improve the early strength of concrete. Prevent freezing at negative temperature.
Improve strength, increase frost resistance, impermeability, wear resistance, corrosion resistance.
Control alkali-aggregate reaction. Prevent the corrosion of steel bar and reduce the diffusion of chloride ion.
Made into concrete with other special properties.
Reduce the viscosity coefficient of concrete.
Where are concrete admixtures used?
1. It is suitable for mass concrete, high-strength and high-performance concrete, roller compacted concrete, concrete constructed in hot weather, concrete poured in a large area, concrete produced by cold joints, concrete that needs to be parked or transported for a long time, self-leveling vibration-free concrete, slip form construction or horizontal construction and other concrete that needs to delay setting time.
2. It is suitable for different grades of concrete under the daily minimum temperature of 5 degrees Celsius, as well as various continuous pouring projects of high flow concrete, commercial concrete, pumping concrete, prestress and reinforced concrete.
3. It is not suitable to be used alone for concrete with early strength requirements and steam curing concrete.
Concrete Additives Supplier
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Despite the German government's decision to restart coal-fired power plants in response to reduced fossil fuel supplies in Russia, the conflict between Russia and Ukraine could eventually accelerate Germany's green energy transformation.
The German government aims to generate 80% of the country's electricity from renewable energy by 2030. However, as the energy supply crisis intensifies, Germany's recent decision to restart coal-fired power generation poses challenges to the country's energy transformation.
Recently, the German Federal Cabinet adopted a new resolution aimed at reducing natural gas power generation and ensuring the security of energy supply. Germany will restart 16 fossil fuel power plants and extend the operating permits of another 11 power plants.
According to a study by Allianz Trade, a credit insurance company, the resumption of coal power in Germany may be temporary and the conflict between Russia and Ukraine will eventually accelerate Germany's green energy transformation.
The study found that the increase in coal-fired power generation approved by the German government in early July would not increase EU carbon dioxide emissions because of the EU emissions trading system. Coal is unlikely to be a long-term substitute for Russian natural gas because of the high price of carbon emissions trading in the European Union.
Luoyang Tongrun Nano Technology is a trusted chemical manufacturer and supplier providing high-quality chemicals and Nanomaterials. If you are looking for the concrete additive, please feel free to contact us and send an inquiry.