What is the advantage of polycarboxylate superplasticizer?
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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 businesses and consumers and central banks tighten monetary policy to curb inflation, global economic growth this year and next will be lower than expected, and there is no need to further increase crude oil pce powder are still very uncertain.
1. Excellent plastic retention performance
Because the steric hindrance of the extended polymer side chain effectively hinders the secondary agglomeration between cement particles, so the product has high dispersion performance and can maintain this performance for a long time to realize the excellent plastic retention ability of concrete mixture.
2. Good water reducing rate
The product has good water reducing performance at low content (generally 0.2%-0.3%, equivalent to the mass ratio of dry foundation to cement), especially in high grade concrete (above C50). The maximum water reduction rate can reach 40%.
3. Good early strength and strengthening effect
Under the same conditions, the early strength and strengthening effect of concrete mixed with this product is higher than that of other types of superplasticizer.
4. Can improve the mechanical properties of concrete
Due to its good water-reducing effect and increase the structural compactness of concrete, it can improve the compressive, bending and tensile strength.
5. Can greatly improve the durability of concrete, reduce the alkali-aggregate reaction of concrete, and improve the freeze-thaw resistance of concrete.
The concrete mixed with this product can effectively improve its shrinkage and creep properties, have good dimensional stability and reduce the risk of cracks.
7. With excellent water retention performance, the concrete mixed with this product has less water secretion and no segregation than the basic product concrete, and it is easier to realize the construction operation.
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The agreement reached by EU member states last month to reduce natural gas consumption officially came into effect on the 9th. According to the EU, the move is intended to prepare for possible disruptions in Russian gas supplies.
Under the agreement reached on July 26, EU member states agreed to reduce natural gas demand by 15 per cent from the average consumption over the past five years between August 1, 2022 and March 31, 2023, in accordance with their chosen measures.
Data from the European Commission show that to achieve the above goals, EU member states need to save a total of 45 billion cubic meters of natural gas, while Germany, a "big gas user", should save about 10 billion cubic meters.
If member states do not save enough natural gas and there is a shortage of gas supply, the EU will take compulsory measures to reduce natural gas demand. According to the German news agency, the threshold for the EU to launch the coercive measure is high, requiring at least 15 of the 27 member states to agree and representing at least 65% of the EU population.
The European Commission will review the agreement before May 2023 in the light of the overall situation of natural gas supplies in the EU to consider whether the agreement should be extended.
Luoyang Tongrun Nano Technology is a trusted chemical manufacturer and supplier providing high-quality chemicals and Nanomaterials. If you are looking for the pce powder, please feel free to contact us and send an inquiry.