GB/T 26751-2011 in English

《GB/T 26751-2011用于水泥和混凝土中的粒化电炉磷渣粉》由TC184（全国水泥标准化技术委员会）归口，主管部门为中国建筑材料联合会。

Ground granulated electric furnace phosphorous slag powder used for cement and concrete

1 Scope

This standard specifies the definition, components and materials, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of ground granulated electric furnace phosphorous slag powder.

This standard is applicable to ground granulated electric furnace phosphorous slag powder used as cement admixture and concrete admixture.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.

GB 175 Common portland cement
GB/T 208 Test method for determining cement density
GB/T 2419 Test method for fluidity of cement mortar
GB/T 5483 Natural gypsum
GB 6566 Limits of radionuclides in building materials
GB/T 6645 Granulated electric furnace phosphorous slag used for cement
GB/T 8074 Testing method for specific surface of cement—Blaine method
GB 9774 Sacks for packing cement
GB/T 12573 Sampling method for cement
GB/T 17671 Test method of cement mortar strength (ISO method)
GB/T 18046-2008 Ground granulated blast furnace slag used for cement and concrete
GB/T 26748 Cement grinding aids
JC/T 1088 Methods for chemical analysis of granulated electric furnace phosphorous slag

3 Terms and definitions

For the purpose of this document, the following terms and definitions apply.

3.1
ground granulated electric furnace phosphorous slag powder
powder ground from granulated electric furnace phosphorus slag as the main material together with a small amount of gypsum into a certain fineness, referred to as phosphorus slag powder for short

4 Composition and materials

4.1 Granulated electric furnace phosphorus slag

It shall comply with those specified in GB/T 6645.

4.2 Gypsum

Gypsum (level G) or mixed gypsum (level M) of Class II or above as specified in GB/T 5483 shall be used.

4.3 Grinding aids

Grinding aids to be used shall meet the requirements of GB/T 26748, and the amount added shall not exceed 0.5% of the total mass of phosphorus slag powder.

5 Technical requirements

The technical requirements for phosphorus slag powder shall be in accordance with those specified in Table 1.