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.…
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.…
Polycarboxylic acid superplasticizers are used as high range superplasticizers in high performance concrete.Water content:3.6%pH:8Total alkali:5.8%Gas content:3.1%…
Cement foaming machine needs auxiliary test machine to help achieve better foaming effect in construction application. Cement foaming agent is a chemical admixture, which is added to cement. Compensate for shrinkage and tension of steel bars to produ…
Metal 3D printing is a 3D printing technology that uses metal powder to directly print metal parts, also known as metal powder sintering (SLM).…
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…
Following the progress in Russia-Ukraine peace talks, the gold price fell more than 1% the next day, hitting its lowest in a month, and palladium prices briefly tumbled by nearly 9%."We have seen metal prices going into free fall when the Russia-Ukra…
Brazil, the world's largest coffee bean producer, recently announced that it is facing the worst drought in 91 years, affecting local hydropower generation and agricultural Bi2S3 powder keeps going up. The Incas had long added bismuth to…
Recently, the Russian President hosted a meeting with oil and gas industry representatives. He said that the refusal of some Western countries to cooperate normally with Russia and deny some Russian energy resources has hit millions of European peop…
Foam concrete is prone to cracking during maintenance, mainly caused by unscientific construction and maintenance of the proportioning. Luchuang has a series of solutions. In the years of construction, Luchuang has accurate material proportions for d…
U.S. refiners forecast strong first-quarter earnings as margins on gasoline and diesel sales improved, refining capacity fell sharply and crude supplies tightened due to the Russia-Ukraine war.Global refining capacity has declined amid the coronaviru…
In the aerospace or petrochemical industries, these important industries are related to the national economy and people's livelihood.…