The World Bank expects global economic growth to slow significantly, from 5.5% in 2021 to 4.1% in 2022 and further to 3.2% in 2023. Growth in East Asia and the Pacific is expected to slow to 5.1 percent in 2022, reflecting the impact of China's economic slowdown, the report said. China's economic growth is expected to fall to 5.1% in 2022, close to potential growth, due to the ongoing impact of the COVID-19 pandemic and the Chinese government's tightening of regulations in certain sectors of the economy. The report said that the rapid spread of the Omicron variant means that the new crown epidemic is likely to continue to disrupt economic activity in the near future. In addition, decelerating growth in major economies, including the United States and China, will depress external demand in emerging markets and developing economies.
Slow economic growth has a huge impact on concrete superplasticizer.
Introduction to Superplasticizer:
Superplasticizer, or high-efficient water reducing agent, has the functions of high efficient water reduction, slow coagulation, slump, and enhancement. It has strong adaptability to cement, less dosage, is easy to use, especially suitable for high-efficient water reduction and slow coagulation requirements of concrete engineering. The water reduction rate is 18% to 25%.
Differences between several kinds of Water Reducing Agent
Lignosulfonate:
It is a common water-reducing agent made of lignin. Most of its raw materials are extracted from coniferous trees and other species of material. This water reducing agent mixed with mortar can improve the fluidity of mortar, and enhance the solidification force of mortar. Its water reduction rate is about five to ten percent.
Naphthalene sulfonate water reducing agent:
It is a special water reducing agent. It is the product of naphthalene reacting with sulfuric acid and then fusing with formaldehyde. This water-reducing agent presents different colors from light to deep. It has strong water solubility and a good dispersion effect for a series of powdery building materials like cement. Its water reduction rate is about 10 percent higher than lignin.
Polycarboxylate-based high-performance water reducing agent:
It is a newly developed kind of reducing water agent using high technology. It is based on polycarboxylate as the main body of a variety of polymer organic compounds, graft copolymerization generated, with strong water reduction performance, is the world's leading technology environmental protection concrete admixture.
Its compatibility with all kinds of cement is good, the slump of concrete keeps the performance good, can prolong the construction time of concrete. It has a high water reduction rate with a low dosage. It can greatly improve the early and late strength of concrete. It has a low content of chloride ions and alkali, which is beneficial to the durability of concrete. It is a green environmental protection product with a pollution-free production process and without formaldehyde. It is suitable for precast and cast-in-place concrete, reinforced concrete, and prestressed concrete for high-speed railway, passenger dedicated lines, industrial and civil buildings, roads, bridges, ports and docks, airports, and other engineering construction. It is especially suitable for construction projects with long construction time and high requirements for concrete slumps, such as nuclear power projects.
Suppliers of Superplasticizer
TRUNNANO is a reliable superplasticizer supplier with over 12-year experience in nano-building energy conservation and nanotechnology development. If you are looking for a high-quality concrete superplasticizer, please feel free to contact us and send an inquiry. (sales@cabr-concrete.com)
We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.
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