Precautions during use of superplasticizer additive

After the pce superplasticizer is added to the cement, the sodium aluminate and sodium carbonate in its main components react rapidly with the gypsum in the cement to form sodium sulfate in the alkaline solution, so that the gypsum loses its original…

What is Colloidal Gold?

BMW is exploring new investments in solar, geothermal and hydrogen energy to reduce its reliance on natural gas, the company's colloidal gold are still very uncertain. What is Colloidal Gold?Colloidal gold is a sol or colloidal suspension…

The Federal Reserve continues to raise interest rates accordingly to curb global steel used cut to length lines demand growth

The Federal Reserve continues to raise interest rates accordingly to curb global steel product name demand growth…

The formula and production method of water reducer for concrete

The application of various concrete admixtures can not only improve the performance of concrete, but also promote the development of new concrete technologies, promote the application of industrial by-products in cementitious material systems, and al…

What can Silicon Carbide Devices Bring to New Energy Vehicles?

The World Platinum Investment Association (WPIC) said recently that carmakers are accelerating reductions in palladium use and increased use of platinum due to concerns about Russian palladium supplies. However, it still expects a significant surplus…

What is Nano Silica Used For?

Europe's largest economy, Germany, recently activated an emergency plan to manage gas supplies that the natural gas could be rationed if supplies are disrupted or disrupted by a stand-off over Russian demands to pay for fuel in rubles. German Vice-C…

Scientists Use 3D Printing to Print Non-magnetic Metal Powders into Magnetic Alloys

Prices in the national electricity market averaged $87 per megawatt-hour in the first three months of the year, above the level promised by the federal government. Wholesale electricity prices for industry and large businesses have already exceeded t…

A Method for Evaluating the Quality of 3D-Printing Metal Parts

Now China has become a powerful country in science and technology, but do you know how powerful China's technology is? The manned space station alone is not enough, and now it has successfully broken through the key technology of nuclear fusion, even…

What is Lithium Stearate?

Russia's insistence on paying for Russian gas in rubles has rattled European countries: Greece held an emergency meeting of suppliers, the Dutch government would urge consumers to use less gas, and the French energy regulator told consumers not to pa…

What is Indium Selenide Used for?

Indium Selenide is an inorganic compound with the chemical formula In2Se3. Black crystals or dark black scale-like substances.…

What is Zinc Sulfide ZnS Used For?

According to statistics from China Chemical and Physical Power Supply Industry Association, China's export volume and export value of lithium-ion batteries have continued to increase. In 2021, China's exports of lithium-ion batteries were 3.428 billi…

Influence of concrete raw materials on the properties of polycarboxylate superplasticizer

Concrete is an indispensable raw material in the construction of construction projects. In the process of preparing concrete, in order to improve the performance of concrete, it is necessary to add water reducing agent after adding water, stone, sand…

What are Aluminum Nitride Characteristics?

The Biden administration plans to ease sanctions on Venezuelan oil to allow more of the country's crude to reach Europe. The U.S. will allow European companies still operating in Venezuela to immediately transfer more oil to the continent, while all…

Nec works with international organizations to support market changes in vaccines and storm gland swa in emerging markets

Kyodo News on May 31, NEC President Tayuki Morita recently interviewed by Kyodo news, revealed plans to strengthen support to emerging market countries. Specifically, NEC will work with international organizations led by the United Nations World Food…

How is the high strength of concrete achieved?

Concrete is classified as high-strength concrete based on 28-day strength. Until the 1970s, concrete with a strength of more than 40Mpa was classified as high-strength concrete.…

Does Spain and Portugal limit the price of electricity have a big impact on the temperature and humidity controller

In May, Spain and Portugal approved 12-month caps on gas prices for power generation to smooth out electricity prices and ease the burden on industry and residential users. Spain's…

Does Spain and Portugal limit the price of electricity have a big impact on the power relays

In May, Spain and Portugal approved 12-month caps on gas prices for power generation to smooth out electricity prices and ease the burden on industry and residential users. Spain's…

Will the sharp decline in China's foreign trade growth have an impact on the market of fob meaning

Will the sharp decline in China's foreign trade growth have an impact on the market of fob meaning? China's exports grew just 3.9% in April from a year earlier, down sharply from 14.7% the pr…

What is Fumed Silica?

In terms of international pricing benchmarks, according to the CP data released by Saudi Aramco, the propane contract price (CP) in March was $895 / ton, up $120 / ton from the previous month, up 15.48% from the previous month and up 43.20% from the…

Analysis of the causes of concrete slump loss

Whether the cement used and the pumping agent are matched and adapted must be obtained through the adaptability test. The optimum amount of the pumping agent should be determined through the adaptability test with the cement cementitious material.…