The formula and production method of water reducer for concrete
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As the world deals with potential supply shortages, oil prices are soaring again, with more dramatic spikes and sudden drops expected.
For consumers, that means more expensive gas for longer - prices at the pump remain above $4 a gallon. For the economy, that means more inflation. In addition to the pressure on consumers, any business that relies on oil -- from airlines and truck drivers to chemical companies and plastics producers -- will face higher costs.
Mr Pickering estimates that 2m to 3m barrels a day of Russian oil shipped by water are frozen out of the market with no direct buyers. Due to the soaring oil price, the price of the water reducer,water reducing agent ,concrete admixtures in the chemical industry will also be greatly affected. He said China and India are continuing to buy Russian crude. "I'm sure there will be others willing to take on more over time," he said. Mr Pickering said he did not expect oil to return to $130 a barrel, but added that it could happen. Francisco Branch, head of commodities and derivatives at Bank of America, said the US market was ready for cyclical price spikes and price swings in the water reducer,water reducing agent ,concrete admixtures.
The application of various concrete admixtures can not only improve the performance of concrete, but also promote the development of new concrete technologies, promote the application of industrial by-products in cementitious material systems, and also help save resources and protect the environment. , has gradually become an essential material for high-quality concrete. Among them, the water reducing agent is a kind of concrete, and the water reducing agent is a concrete admixture that can reduce the mixing water consumption under the condition that the concrete slump is basically unchanged. Most of them are anionic surfactants, such as lignosulfonate, naphthalene sulfonate formaldehyde polymer, etc. When we add the concrete mixture, it has a dispersing effect on the cement particles, which can improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; or reduce the unit cement consumption, effectively saving cement.
The specific operation method of the water reducing agent formula for concrete:
1. Maleic anhydride is prepared into a 5-7% solution according to the required amount and recorded as the head material.
2. The initiator is prepared into a 5-10% solution for later use.
3. Add the required amount of APEG or TPEG, heat to liquefy it, and then add the headstock.
4. Nitrogen replacement;
5. When the temperature rises to 75-85°C, the initiator is added dropwise, and the dropwise addition is completed at 80°C for 1.5-2 hours.
6. After the dropwise addition of the initiator is completed, keep the temperature at 80-90° C. for 4-4.5 hours to complete the reaction and cool down.
7. When the temperature drops to 40-50℃, add 50% KOH solution to neutralize to PH: 7-8.
8. After measuring the solid content, add the measured soft water according to the required solid content.
9. After the solid content is determined to be qualified, discharge the material.
After the above experiments, we can get the basic formula of water reducer for concrete:
Concrete water reducer formula 1:
Hydroxyethyl acrylate: 25g, acrylamide: 5g, allyl polyoxyethylene ether: 175g, sodium persulfate: 10g, neutralized by sodium hydroxide.
Concrete water reducer formula 2:
Allyl polyoxyethylene glycol ether: 40 g, acrylic monomer: 30 g, 10% ammonium persulfate aqueous solution 40 g, neutralized with triethanolamine.
Concrete water reducer formula 3:
Allyl polyoxyethylene glycol ether: 100 g, methacrylic acid: 70 g, acrylic acid: 20 g, 10% aqueous ammonium persulfate solution: 50 g, neutralized with sodium hydroxide.
Concrete water reducer formula 4:
Methacrylic acid: 25g:, allyl polyoxyethylene ether: 175g, sodium persulfate: 10g. , neutralized with sodium hydroxide.
Concrete water reducer formula 5:
TPEG: 180 g, hydrogen peroxide: 0.63 g, thioglycolic acid: 0.56 g, ascorbic acid: 0.3 g, acrylic acid: 182.3 g, neutralized with sodium hydroxide.
Concrete water reducer formula 6:
APEG: 180 g, hydrogen peroxide: 10 g, thioglycolic acid: 2.07 g, itaconic acid: 10 g, methacrylic acid: 21.23 g, neutralized with sodium hydroxide.
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During the first 100 days of its special military operation in Ukraine, Russia earned 93 billion euros from fossil energy exports, most of it from the European Union, according to an independent research center.
The report by the Finland-based Center for Energy and Clean Air comes as Ukraine urges the West to cut off all trade with Russia to stop funding the Kremlin's war chest.
The European Union recently decided to impose a gradual embargo on Russian oil imports, with some exceptions, according to reports. Russian gas, on which it relies heavily, is currently unaffected.
In the first 100 days of the Conflict between Russia and Ukraine (February 24 to June 3), the EU accounted for 61 percent of fossil energy imports, or about 57 billion euros, according to the Energy and Clean Air Research Center.
Russia's revenue came first from crude oil sales (43.87 billion euros), followed by pipeline gas (22.89 billion euros), then petroleum water reducer,water reducing agent ,concrete admixtures, please feel free to contact us and send an inquiry.