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 white cement.
What is white cement?
The raw material of appropriate composition is burned to partially melted. The clinker with calcium silicate as the main component and low iron content is added with appropriate amount of gypsum, and it is a white hydraulic cementing material made by grinding, called white silicate cement (referred to as white cement).
When grinding cement, it is allowed to add limestone not exceeding 5% of the cement weight.
Note: It is allowed to add grinding aids that do not damage the cement performance to grind cement, and the addition amount does not exceed 1% of the cement weight. Incorporation of other admixtures must be tested and submitted to the Ministry of Building Materials Industry for approval.
Grade of white cement:
(1) Label: There are four labels: 325, 425, 525, and 625.
(2) Whiteness: the minimum whiteness is not less than 87. 90 whiteness and 92 whiteness.
Characteristic of white cement:
White cement, white Portland cement is abbreviated as white cement, is a hydraulic cementitious material made of white Portland cement clinker added to gypsum and ground. The typical feature is high whiteness and bright color.
Applications of white cement:
The typical characteristic of white cement is that it has high whiteness and bright color. It is generally used as a variety of building decoration materials. Typical examples are stucco, sculpture, ground, terrazzo products, etc. White cement can also be used to make white and colored concrete components. It is the largest variety of decorative cement produced.
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