Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this year, more than 4 million people in the United States have voluntarily resigned each month. In August, the number of resignations exceeded 4.27 million, and in November, it rose to 4.4 million. The operation of society is linked. The large number of departures in the United States has led to a large shortage of labor; and the shortage of a large number of labor has directly led to the supply chain crisis in the United States; the supply chain crisis has directly affected prices and prices in the United States. The economy has a direct effect on people's lives.
The economic downturn will affect the market demand for 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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