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The Comparison between Mechanism Sand and Natural Sand on Performance

Date: May 24,2015

Mechanism Sand Advantages:

1. Excellent quality.

The finished products are of cube shape, with low content of needle-like and sheet-like products. Strong compressive capacity, meeting the need of high standard construction, such as water conservancy, bridges, superhighway and high-rise buildings and other areas.

2. Stable quality.

Standard industrial production, ensuring the quality of each batch.

3. Good combination with cement.

Polygon-like particle shape and large specific surface area. Powder content accounted for 3 to 15%. Good activity and combination.

4. Outstanding frost resistance, impermeability and durability

Firm meshing between sand granules, high concrete strength and good frost resistance.

5. More sensitive to additives.

Additives are very expensive, so it can save costs.

6. Wide application scope.

Wide application scope, especially for high performance concrete. Can be applied to the high-rise buildings, hydropower dam, highway, railway, bridges, etc, where the natural sand are not allowed.

7. Controllable silt content and powder content.

Comparison on sand ingredients:

Sand Type chemical component % physical property
SiO2 Al2O3 Fe2O3 CaO MgO SO3 Lo1 fineness modulus density loose capacity voidage moisture absorption silt content
Limestone artificial sand 0.82 0.39 0.17 54.18 1.11 0.01 42.54 2.52 2.71 1.62 40.00 0.72 <1.2
Basalt artificial sand 52.34 14.32 15.03 8.51 4.54 0.02 3.92 2.67 2.69 1.60 46.10 1.81 <1.2
Granite artificial sand 78.62 11.45 2.06 2.06 0.12 0.01 1.31 2.77 2.62 1.48 43.51 0.82  
Rhyolite artificial sand 71.39 12.30 4.5 1.68 1.06 0.45 2.01 2.72 2.67 1.54 42.32 0.92  
Tuff artificial sand 70.55 14.28 3.52 1.40 0.34 0.50 0.90 2.17 2.66 1.53 42.18 0.91  
Dolomite artificial sand 1.52 0.57 0.67 27.61 24.33 0.04 45.12 2.64 2.32 1.64 42.55 0.77 <1.2
Malmstone artificial sand 80.97 6.00 2.86 3.38 0.33 0.20 3.34 2.17 2.67 1.46 45.32 2.39 <1.2
Yiliang natural sand 79.88 6.00 4.49 1.98 1.52 0.02 4.29 2.24 2.65 1.58 40.40 2.38 9.42
Longtan natural sand 96.18 1.07 2.26 0.25 0.06 0.04 0.02 1.86 2.67 1.30 51.30 0.80 1.17

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