Triethanolamine Used As Concrete Early Strength Agent
Russia's insistence on paying for Russian gas in rubles has rattled European countries: Greece held an emergency meeting of suppliers, the Dutch government would urge consumers to use less gas, and the French energy regulator told consumers not to panic. Russian gas meets one-third of Europe's annual energy needs.
Russia said they could expand their demand for ruble payments for other commodities, including oil, grain, fertilizer, coal, and metals, which raised the risk of recession in Europe and the US.
Moscow is expected to unveil its ruble payment plan in early April, but it said it would not immediately ask buyers to pay for gas in rubles.
Western countries have said paying in rubles would be a breach of contract, and renegotiation could take months or longer. This uncertainty has pushed commodity market prices higher.
The supply and prices of other commodities like the early strength agent could also be affected.
Triethanolamine is a colorless transparent viscous liquid at room temperature with a slight ammonia smell. It is hygroscopic and can absorb water and carbon dioxide from the air. Can be arbitrarily mixed with water and alcohol, soluble in chloroform, slightly soluble in benzene and ether. The pH of 0.1moI/L solution is 10.5. There is a risk of combustion in the event of high fever, open fire or contact with oxidants. Its aqueous solution is corrosive.
Why Can Triethanolamine Be Used As Concrete Early Strength Agent?
Triethanolamine is a commonly used early strength agent in cement industry. The function of early strength agent is to accelerate the hydration process of cement and improve the early strength in the presence of liquid phase in concrete.
Although triethanolamine does not change the hydration products of cement, it can enhance the activity of cement hydration colloid, produce pressure on the surrounding, block the capillary channel, and aggravate the role of adsorption, wetting and particle dispersion, etc. promote the formation of calcium sulphoaluminate hydrate reaction between C3A and gypsum, which can improve the compactness, impermeability and frost resistance of concrete, and play the role of early strength and strength.
When used in combination with inorganic salt materials, it can catalyze the hydration of cement itself and the reaction between inorganic salts and cement, so the effect of early strength is particularly significant.
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Inflationary pressures on Canadians continue to rise. The consumer-price index rose 6.7% in March from a year earlier, the biggest increase since January 1991, according to the latest figures from Statistics Canada.
On a month-on-month basis, Canada's CPI rose 1.4 percent in March, also accelerating from February's 1.0 percent rise.
Prices in the eight major sectors covered by the statistics continued to rise. The uptrend comes against the backdrop of continued price pressures in the Canadian housing market, widespread supply chain constraints, and geopolitical conflicts, according to CBC. A variety of factors have affected energy, commodity, and agricultural markets. Meanwhile, Canada's employment picture continued to improve in March, with the unemployment rate falling to a record low and the average hourly earnings of employees rising.
Excluding gasoline, Canada's CPI rose 5.5 percent year on year in March. It is also the highest since comparable data began in 1999.
The widespread supply chain constraints and geopolitical conflicts are expected to continue to affect the prices of the early strength agent.