Recently, OPEC and the International Energy Agency (IEA) have made two different judgments on oil demand forecasts, which makes the already unpredictable price of crude oil even more complicated.OPEC believes that as rising prices put pressure on bus…
Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c…
Nano titanium carbide is one of the transition metal carbides with the highest hardness, but its brittleness is not suitable for pure use. They are added to tungsten-based cemented carbide at 5-30% by weight to increase hardness and high temperature…
Polycarboxylate superplasticizer is often used in concrete, which can reduce the water consumption of concrete while maintaining the same fluidity, thus improving the strength and durability of concrete.…
Sweden is in talks with Turkey on joining NATO and looks forward to strengthening cooperation with Turkey in security and counter-terrorism, Swedish Prime Minister Anders Andersson said recently. Andersson held a joint press conference with visiting…
Polycarboxylate superplasticizer has more advantages than traditional naphthalene and aliphatic superplasticizer in mixing high strength grade concrete, but its advantages of high water reduction cannot be brought into full play when the strength is…
ZnO is used as reinforcing agent and active agent in rubber or cable industry, as colorant and filler of white rubber, and as vulcanizing agent in neoprene rubber.…
In order to improve the early strength of concrete, some manufacturers will add triethanolamine, calcium chloride and industrial salt to the superplasticizer, especially in winter or prefabricated component factories and cement products factories tha…
In terms of international pricing benchmarks, according to the CP data released by Saudi Aramco, the propane contract price (CP) in March was $895 / ton, up $120 / ton from the previous month, up 15.48% from the previous month and up 43.20% from the…
If the compatibility of polycarboxylate superplasticizer and cement is not good, the concrete mixture is prone to some problems, such as segregation, bleeding, greater slump loss, shorter setting time and so on, so that the concrete mixture can not b…
Recently, the International Energy Agency released its monthly report on the oil market. Affected by hot weather and soaring natural gas prices, some countries have had to change their ways of generating electricity and switch to oil-fired power gene…
The wide application of mineral admixtures mainly derived from industrial solid wastes diversifies the composition of cementitious materials, which is one of the main characteristics of modern concrete.…
The powder boron is available in four variants. These are hexagonal boron, rhombohedral (RBN), cube boron and wurtzite. The most common boron nitride produced is white graphite, which has a structure similar to graphite. The need to increase battery…
The characteristics and market analysis of carbon nanotubes and the molybdenum disilicide properties fibers In this macro world, we all get tired from time to time. The same is true for bundles of carbon nanotubes, no matter how perfect their individ…
British car service company RAC said , t he average price of petrol in the UK has risen to 1.51 pounds (about 12.76 yuan) per liter, and diesel has risen to 1.55 pounds (about 13.09 yuan) per liter . The company official said that since last Thursday…