T/GZHG 026-2022 Active Group standards

T/GZHG 026-2022 Modified anhydrous phosphoric slag for use in polymer road pipe network materials

Publish Date: 2022-01-05 Implement Date: 2022-01-05 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 026-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Building materials products

ICS Name: Chemical production

Publish Date: 2022-01-05

Implement Date: 2022-01-05

Scope

Main Technical Content: 5.1 The appearance should be a fine powder with uniform color and no clumping. 5.2 The basic requirements of the chemical composition of the product shall comply with Table 1. Table 1 Item Requirement 200 mesh 800 mesh 1200 mesh Fineness (D90a) 75μm 18μm 12μm Calcium sulfate content (%) ≥80 Water content (%) ≤2.0 Water-soluble phosphorus pentoxide (P2O5) (%) ≤0.5 Water-soluble fluoride ions (F-) (%) ≤0.4 Water-soluble magnesium oxide (MgO) (%) ≤0.5 Oil absorption value (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 type. b The oil absorption value is only required when modified anhydrous phosphogypsum is used as a filler for polyvinyl chloride. 5.3 The limit of radioactive nuclides shall comply with the requirements of GB 6566. 6 Test Methods 6.1 Appearance: Visual inspection. 6.2 Fineness: Determined in accordance with GB/T 19077-2016, with more than 90% of the powder particles having a diameter smaller than the required type. 6.3 Calcium sulfate (CaSO4) content: Determine the SO3 content according to Chapter 11 of GB/T 5484-2012, and calculate the CaSO4 content according to Equation (1): WCaSO4 = WSO3 × 1.70. (WCaSO4 is the mass fraction of CaSO4; WSO3 is the mass fraction of SO3; and 1.70 is the conversion coefficient from SO3 mass fraction to CaSO4 mass fraction.) 5.4 Water content (H2O): Determined in accordance with Chapter 10 of GB/T 5484-2012. 5.5 Water-soluble phosphorus pentoxide (P2O5): Determined in accordance with JC/T 2073. 5.6 Water-soluble fluoride ions (F-): Determined in accordance with JC/T 2073. 5.7 Water-soluble magnesium oxide (MgO): Determined in accordance with Chapter 27 of GB/T 5484-2012. 5.8 Oil absorption value: Determined in accordance with the method specified in GB/T 19281. 5.9 Chloride ion (Cl-): Determined in accordance with