The formula and production method of water reducer for concrete
Commodity prices are on track for their biggest rally in more than a century, while fixed-income assets have seen their longest run of outflows as the war in Ukraine adds to inflationary pressures in the global economy emerging from the coronavirus lockdown, according to Bank of America.
"Commodity prices this year are on track to record their biggest gains since 1915." the bank said in its weekly briefing. They cite many factors, such as pandemics, lockdown, civil strife, wars, excessive monetary and fiscal stimulus, and supply chain disruptions, that have led to "historically" high inflation.
By the same token, it said government bonds were heading for their worst year since 1949, and "negative-yielding bonds will quietly disappear" from the market as central banks embark on a monetary tightening cycle and raise interest rates to tame soaring inflation.
The prices of many commodities like the water reducer,water reducing agent ,concrete admixtures are expected to increase in the future.
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.
The above is for reference only. If you need more, you can find a professional concrete water reducer formulation and component analysis and testing agency to provide concrete water reducer, concrete additive formula reduction, concrete polyacid water reducer component analysis, concrete water reducer Formula analysis, proportion of concrete water reducing agent, decryption of water reducing agent formula, composition analysis of concrete water reducing agent, composition test of concrete water reducing agent, identification of concrete water reducing agent raw materials, etc. Analyze the chemical name and approximate content ratio of each raw material in the sample, provide technical assistance for your production, and even develop the preparation method of the sample for you.
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Recently, the Turkish government announced that the Turkish President has signed a presidential decree to provide incentives for its Black Sea gas field development projects, including tax exemptions and other preferential measures.
With a fixed investment of 145.1 billion Turkish lira ($10 billion), the project will employ 1,018 people and produce 14 billion standard cubic meters of gas per year, the decree reads. The incentives involved include tariff and VAT exemptions, as well as a range of tax cuts.
In June 2021, Turkish drill ships discovered 135 billion cubic meters of natural gas in the Sakaria field in the Black Sea, bringing Turkey's total gas discoveries in the region to 540 billion cubic meters.
Turkey imports almost all of its annual gas consumption of about 50 billion cubic meters.
Except for natural gas, the supply and prices of many other water reducer,water reducing agent ,concrete admixtures will continue to be influenced by international situations.