What's the use of drying sand
As a specially treated building material, dry sand has shown wide application value in many fields in recent years. This article will combine popular topics and hot contents across the network for the past 10 days to analyze the uses, advantages and market trends of drying sand for you in detail.
1. Definition and characteristics of drying sand
Dry sand is a finished sand that removes moisture and impurities from natural sand through a high-temperature drying process. It has the following characteristics:
| characteristic | illustrate |
|---|---|
| Water content | ≤0.5% (far lower than natural sand) |
| Particle uniformity | The particle size is consistent after screening |
| Cleanliness | No impurities such as soil, organic matter, etc. |
2. Main application areas
According to recent industry statistics, drying sand is mainly used in the following scenarios:
| Application areas | Specific use | Market share (2023) |
|---|---|---|
| Construction | Concrete preparation, mortar production | 42% |
| Glass manufacturing | High-purity glass raw materials | 28% |
| Casting industry | Casting molding sand | 15% |
| Sewage treatment | Filtration materials | 8% |
| other | Sports venues, artistic creations, etc. | 7% |
3. Recent hot application cases
1.Prefabricated building craze: With the promotion of prefabricated buildings in the country, reports from many places in the past 10 days showed that the demand for drying sand increased by 35% year-on-year because it can significantly improve the strength stability of prefabricated components.
2.Photovoltaic glass production expansion: According to industry media statistics, 12 new photovoltaic glass production lines were built in Q3 2023, driving the purchase of high-purity drying sand to reach 800,000 tons.
3.Post-disaster reconstruction project: After flood disasters in North China, drying sand has become the first choice for emergency repair projects due to its convenient transportation and ready-to-use characteristics.
4. Comparison with traditional natural sand
| Comparison items | Dry sand | Natural sand |
|---|---|---|
| Construction adaptability | Not affected by the weather | Additional treatment is required in the rainy season |
| Material stability | Intensity fluctuation <3% | Intensity fluctuations of 8-15% |
| Environmental performance | Can be recycled 3-5 times | Basically non-recyclable |
5. Latest market trends
1.Price trend: The national average drying sand price in October was 85-120 yuan/ton, up 5% from the previous month, mainly affected by the following factors:
2.Technological innovation: Recently, a company launched a new microwave drying process, which can reduce energy consumption by 40%, and the search volume of related patents increased by 210% month-on-month.
3.Policy trend: The Ministry of Natural Resources plans to issue the "Machined Sand Industry Standards", emphasizing that dry sand production must comply with the GB/T 14684-2022 standard.
6. Precautions for use
According to recent engineering practice feedback, special attention should be paid to:
• Storage requirements: It is recommended to store in a closed warehouse to avoid secondary moisture
• Adjustment of mix ratio: The mixing water consumption should be reduced by 3-5% during use
• Quality identification: Authentic dry sand should have CMA certification testing report
Conclusion
With the improvement of building industrialization and environmental protection requirements, drying sand is upgrading from auxiliary materials to indispensable basic building materials. It is recommended that relevant companies pay close attention to industry standards updates and technological development trends to give full play to their economic value and technological advantages.
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