GB/T 31288-2014Iron tailings sand (English PDF)

1 Scope

This standard specifies the iron tailings terms and definitions, specifications, general requirements, technical requirements, test methods, inspection rules, marking, storage

And transportation.

This standard applies to concrete and mortar products and iron tailings.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB 6566 building materials radionuclide limits

GB/T 14684-2011 building sand

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Specification

Iron tailings fineness modulus divided by iron sand tailings (the sand) and iron tailings extra fine sand (referred to special sand) two specifications. Fineness modulus

Number of 2.2 to 1.6 for the sand, fineness modulus of 1.5 to 0.7 for the extra fine sand.

5 General requirements

Iron tailings of hazardous substances shall comply with the provisions of 6.3, it should also comply with our environmental and safety standards and norms, should not people

Body, biological, environmental and concrete, mortar performance adversely affected.

6 Technical Requirements