What exactly is graphene?
Due to the properties of the chemical bonds between carbon atoms, graphene is very tough: it can be bent to large angles without breaking and withstand high pressures.…
Due to the properties of the chemical bonds between carbon atoms, graphene is very tough: it can be bent to large angles without breaking and withstand high pressures.…
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…
Admixtures can be used for almost all kinds of concrete, but suitable admixtures must be selected according to engineering needs, construction conditions and construction technology.…