GB/T 25824-2010Steel slag for road (English PDF)
道路用钢渣
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 23, 2010
Implementation date
September 1, 2011
Scope
GB/T 25824-2010 is the English-translated version of 道路用钢渣.
GB/T 25824-2010 is the Chinese standard "Steel slag for road". Its scope clause reads: This standard specifies the terms and definitions, specifications, technical requirements, test methods, inspection rules, transportation, storage of steel slag for road use.
This standard applies to steel slag used as coarse aggregate in asphalt mixtures, as well as steel slag used in road base courses and subgrades. Its clauses include terms and definitions; specifications; technical requirements; test methods; inspection rules; storage, transportation, quality certificate.
It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on DECEMBER 23, 2010 and took effect on SEPTEMBER 01, 2011.
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Document preview — GB/T 25824-2010
National Standard of the People's Republic of China
- ICS
- 77.140.99
- Classification
- H 54
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions4
- 4 Specifications5
- 5 Technical requirements6
- 6 Test methods7
- 7 Inspection rules8
- 8 Storage, transportation, quality certificate9
1 Scope
This standard specifies the terms and definitions, specifications, technical requirements, test methods, inspection rules, transportation, storage of steel slag for road use.
This standard applies to steel slag used as coarse aggregate in asphalt mixtures, as well as steel slag used in road base courses and subgrades.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.
GB/T 24175 Test method for stability of steel slag
JTG D50 Specifications for design of highway asphalt pavement
JTG E42-2005 Test methods of aggregate for highway engineering
JTG F40 Technical specifications for construction of highway asphalt pavement
JTJ 052-2000 Standard test methods of bitumen and bituminous mixtures for highway engineering
YB/T 804 Terminology for iron and steel slag & treatment and utilization
3 Terms and definitions
The terms and definitions defined in GB/T 24175, YB/T 804, JTG D50, as well as the following terms and definitions, apply to this document.
3.1 Steel slag for road
Converter steel slag or electric arc furnace steel slag, that has undergone qualified stabilization treatment and is used in road engineering.
3.2 High-grade road
Expressways and Class I highways among highways, as well as express roads and arterial roads among urban roads.
3.3 Other grades road
Roads of grades other than high-grade roads.
4 Specifications
4.1 Specifications for steel slag coarse aggregate for asphalt mixtures
The designation of steel slag coarse aggregate for asphalt mixtures shall comply with the provisions of JTG F40; the particle size requirements shall comply with the provisions of Table 1.
4.2 Specifications for steel slag aggregate for road base courses
For high-grade roads, the maximum particle size of steel slag used in the base course shall not exceed 31.5 mm; that in the sub-base course shall not exceed 37.5 mm. For roads of other grades, the maximum particle size of steel slag used in the base course shall not exceed 37.5 mm; that in the sub-base course shall not exceed 53 mm.
The aggregate gradation for cement-stabilized steel slag mixtures and cement-fly ash-stabilized steel slag mixtures shall comply with the provisions of Table 2. The aggregate gradation for lime-fly ash-stabilized steel slag mixtures shall comply with the provisions of Table 3.
4.3 Specifications for steel slag used in roadbeds
The maximum particle size of steel slag used in roadbeds shall not exceed 60 mm.
5 Technical requirements
5.1 Technical requirements for steel slag coarse aggregate used in asphalt mixtures
The technical requirements for steel slag coarse aggregate used in asphalt mixtures shall comply with the provisions of Table 4.
The technical requirements for steel slag aggregate used in road base courses shall comply with the provisions of Table 5.
5.3 Technical requirements for steel slag used in roadbeds
The water immersion expansion rate of steel slag used in roadbeds shall not exceed 2.0%.
6 Test methods
6.1 Screening
Screening is conducted in accordance with the provisions of JTG E42.
6.2 Water immersion expansion rate
It is conducted in accordance with the provisions of GB/T 24175.
6.3 Crushing value
It is conducted in accordance with T0316 of JTG E42-2005.
6.4 Los Angeles abrasion loss
It is conducted in accordance with T0317 of JTG E42-2005.
6.5 Soundness
It is conducted in accordance with T0314 of JTG E42-2005.
6.6 Water absorption
It is conducted in accordance with T0304 of JTG E42-2005.
6.7 Apparent relative density
It is conducted in accordance with T0304 of JTG E42-2005.
6.8 Elongated and flaky particle content
It is conducted in accordance with T0312 of JTG E42-2005.
6.9 Weak and soft particle content
It is conducted in accordance with T0320 of JTG E42-2005.
6.10 Polishing value
It is conducted in accordance with T0321 of JTG E42-2005. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 24175-2009 — Test method for stability of steel slag
GB/T 24175-2026 — Test method for the stability of steel slag
YB/T 804-2009 — Terminology for iron and steel slag and treatment and utilization
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