Strict production discipline by OPEC and its partners is the #1 reason why oil prices have managed to stage a remarkable recovery and stay relatively high after plunging to historical lows in 2020. Early this month, oil prices reacted positively afte…
The cement superplasticizer concrete The cement superplasticizer is an admixture that can greatly reduce the amount of mixing water under the condition of the same slump of concrete. The plasticizer is a kind of concrete admixture that can reduce wat…
What is gallium-nitride? A new semiconductor material, gallium-nitride, has high band gaps, thermal conductivity at high temperatures, radiation resistance and acid resistance. It also exhibits high strength, hardness, and toughness. It is used exten…
Cement foaming agent refers two kinds: plant cement foaming agent and polymer foaming agent.…