In the summer when the temperature is high and the air humidity is low, due to the accelerated hydration reaction at high temperature, the moisture is easy to evaporate, the mortar fluidity loss is fast and the setting time is shortened, the construc…
In terms of action mechanism, the molecular structure of polycarboxylate superplasticizer is comb type, and the polar anion…
The influence of water consumption is very obvious. In the actual application of concrete engineering, sometimes if the water consumption is increased by more 1~3kg/m3, the concrete will appear serious bleeding phenomenon, which will cause defects su…
Polycarboxylate superplasticizer has more advantages than traditional naphthalene series and aliphatic superplasticizers when mixing high-strength concrete, but for low-strength concrete whose strength is not greater than C30, its high water-reducing…
he compatibility of cement foaming agents and the foaming machine is the first consideration. Because there is a problem with compatibility between cement foaming agent and cement foaming machine.…
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
The purity of carbonaceous raw materials such as petroleum coke and pitch coke is relatively high, and the ash content is usually less than 0.5%, while the purity of natural graphite treated by flotation is relatively low, and the carbon content is u…
As inflation and supply-chain woes continue, more companies are raising prices Inflation continues to rise in the United States as supply chain crises rage and worker shortages persist. The combination of these factors puts pressure on companies that…
It is reported that the term "carbon neutral" has been frequently mentioned in South Korea in the past six months. Last October, South Korean President Moon Jae-in mentioned South Korea 2050 emission reduction target for the first time in h...…