Not All Materials Are Suitable for Producing Manufactured Sand
When producing manufactured sand, there are specific requirements for the raw materials:
- Material Strength: The raw material used for manufactured sand must have adequate compressive strength. It should not contain any potentially alkali-reactive aggregates. Preferably, clean, hard, and non-weak particles should be used.
- Quarry Selection: Avoid quarries with thick overburden layers, clay-rich interlayers, or rocks with flaky stratification and poor quality.
- Exposed Rock Sources: If the rock surface is covered with soil or weathered layers, these should be removed before crushing.
Mobile Crushing Station for Manufactured Sand Production Line
I. Common Raw Materials Suitable for Producing Manufactured Sand
- Natural stones: Pebble, limestone, granite, basalt, andesite, sandstone, quartzite, diabase, tuff, marble, rhyolite, iron ore
- Waste materials: Construction waste, tailings, tunnel slag, etc.
1. Sandstone
A sedimentary rock with more than 50% sand particles. Its structure is stable, mainly composed of quartz and feldspar. It is a common raw material for manufactured sand. However, due to the high stone powder content during crushing, a production line with effective dust removal is recommended.
2. Quartz Sandstone
With over 90% quartz content, this material offers excellent strength and shape, making it a popular and effective raw material for manufactured sand.
3. Pebble
A pure natural stone that is non-toxic, odorless, and non-discoloring. It is hard and aesthetically pleasing. Manufactured sand made from pebble is a high-quality, eco-friendly building material and a superior alternative to natural sand.
4. Slag
An industrial waste product that is widely available and cost-effective for sand making.
5. Construction Waste
With large annual output in China, construction waste like concrete blocks, crushed stones, and bricks can be used to produce sand and gravel aggregates for construction and road industries, reducing raw material costs.
6. Limestone
Can be used to produce both sand and gravel, with by-product stone powder available for reuse.
7. Basalt
Sand made from basalt can reduce the weight of concrete while maintaining strength, and also provides sound and heat insulation, making it ideal for lightweight concrete in high-rise buildings.
8. Granite
Granite with high quartz content and low sulfide content is a good material for sand making, though dust control needs to be addressed
