Trending
Concrete is a modern material that uses a variety of chemical additives, each with varying characteristics. These additives play an important part in improving the performance of the concrete and maintaining its quality. Here are a few chemical addit…
Superplasticizer used in concrete refers to the fact that after mixing, it can reduce the water demand of concrete under the condition of maintaining basically the same fluidity, thereby improving the strength and durability of concrete, or under the…
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…