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? ?Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is categorized by the Udden-Wentworth scale into granular gravel (2 to 4 mm or 0.079 to 0.157 in) and pebble gravel (4 to 64 mm or 0.2 to 2.5 in). One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 pounds).
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Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or tarmac.Both sand and small gravel are also important for the manufacture of concrete.
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Chemical Properties
CaCo3 ? ??????????????? - ?????????? 95% Min?
CaO ?????????????????????? -????????????? 54% Min?
MgO ???????????????????? -????????????? 0.30% Max?
SiO2 ????????????????????? -??????????????0.13% Max?
Fe2O3 ????????????????? -????????????? 0.01% Max?
LOI ??????????????????????? -????????????? 0.03% Max
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- Packaging Details:?15KG/bag or according to customer requirements.
- Delivery Details: ? ? ?7-15 days after confirming payment.
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? ? Lingshou county zhongrun minerals co.,ltd.founded in 1988, We are a company covers an area of 100000 square meters and sepcialized in developing, producing, sales and service on nonmetallic minerals and fiber.?Our factory is located in lingshou county shijiazhuang city hebei province china.?Our own mine?can offer a quality-assured products and our clients can avail them from us at industry leading price.
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? ? Processed by our skilled professionals at our up to date processing unit keeping in mind set industry quality norms.Processed using superb quality raw material and??three times of??screening processes.
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? ? We have introduced the advanced production facilities and testing& inspection equipment, having a galaxy of experienced management personnel and professional technical personnel, which assure good quality.
