T/GZHG 026-2020 Abolished Group standards

T/GZHG 026-2020 Modified anhydrous phosphoric slag for use in polymer road pipe network materials

Publish Date: 2020-12-16 Implement Date: 2020-12-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZHG 026-2020

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Building materials products

ICS Name: Other building materials

Publish Date: 2020-12-16

Implement Date: 2020-12-16

Scope

Main technical content: 4.1 The appearance should be a fine powder with uniform color and no clumping. 4.2 The chemical composition of the product should meet the requirements specified in Table 1. Table 1 Item Requirement 200 mesh 800 mesh 1200 mesh Fineness (D90) 75μm 18μm 12μm Calcium sulfate content (%) ≥80 Moisture (%) ≤2.0 Water-soluble phosphorus pentoxide (P2O5) (%) ≤0.5 Water-soluble fluoride ions (F-)(%) ≤0.4 Water-soluble magnesium oxide (%) ≤0.5 Oil absorption value (b/g·100g) ≤40 Chloride ion content (%) ≤0.04 Note: a D90 indicates that more than 90% of the powder particles have a diameter smaller than the required value. b The oil absorption value is only required when modified anhydrous phosphogypsum is used as a filler for polyvinyl chloride. 4.3 The limit for radioactive nuclides should comply with the requirements of GB 6566.