Concrete strength and shrinkage reducer
Description ofConcrete strength and shrinkage reducer1. After the carbonate cement is added to the c...…
Description ofConcrete strength and shrinkage reducer1. After the carbonate cement is added to the c...…
Aerogel is a nanoporous solid material formed by the sol-gel method, in which the liquid phase in the gel is replaced by gas by a certain drying method [1]. Such as gelatin, gum arabic, silicone, hair, nails, etc. Aerogel also has the properties of t…
Data from the National Bureau of Statistics show that my country's industrial economy will continue to recover steadily in 2020, and the value added of the industrial enterprises above designated size for the whole year increased by 2.8% year-on-year…
On March 24, international oil prices rose sharply on the 24th. As of the close of the day, the price of light crude oil futures for May delivery on the New York Mercantile Exchange rose by US$3.42 to close at US$61.18 per barrel, an increase of 5.92…