GB/T 38989-2020Uniaxial compressive elastic modulus test method of materials stabilazed with inorganic binder (middle segment method) (English PDF)
无机结合料稳定类材料单轴压缩弹性模量试验方法（中间段法）
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 21, 2020
Implementation date
June 1, 2021
Scope
GB/T 38989-2020 is the English-translated version of 无机结合料稳定类材料单轴压缩弹性模量试验方法（中间段法）.
GB/T 38989-2020 is the Chinese standard "Uniaxial compressive elastic modulus test method of materials stabilazed with inorganic binder (middle segment method)".
Its scope clause reads: This standard specifies the specimen preparation, equipment, and test procedures for the uniaxial compression modulus of inorganic binder stabilized materials (intermediate section method) Steps, result calculation, result arrangement and test report.
This standard is applicable to the test of uniaxial compression elastic modulus of inorganic binder stabilized materials for road engineering. Its clauses include terms and definitions; specimen preparation; equipment.
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Document preview — GB/T 38989-2020
National Standard of the People's Republic of China
- ICS
- 93.080.20
- Classification
- Q 20
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope1
- 2 Normative references1
- 3 Terms and definitions1
- 4 Sample preparation1
- 5 Equipment1
- 6 Test Step3
- 7 Calculation of results4
- 8 Results finishing4
- 9 Test report5
1 Scope
This standard specifies the specimen preparation, equipment, and test procedures for the uniaxial compression modulus of inorganic binder stabilized materials (intermediate section method)
Steps, result calculation, result arrangement and test report.
This standard is applicable to the test of uniaxial compression elastic modulus of inorganic binder stabilized materials for road engineering.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
JTGE51 Highway Engineering Inorganic Binder Stabilization Material Test Regulation
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Inorganic binders stabilized material
The crushed or originally loose materials are mixed with sufficient inorganic binding materials and water, and after mixing, compaction and health preservation, it is resistant to compression
The mixture when the strength meets the requirements.
3.2 Uniaxial compression elastic modulus
The cylindrical specimen is subjected to pressure parallel to its central axis, and the compressive stress required for unit axial deformation is generated in the linear elastic state.
3.3 Middlesegmentmethod
A test method for measuring the deformation of the middle section of the test piece in order to eliminate the end effect.
4 Specimen preparation
4.1
This method uses a test piece with a diameter of 150mm and a height of 150mm, which can be molded indoors or drilled on site.
4.2
When molding the test piece indoors, shape it according to T0843 in JTGE51, and keep it in accordance with T0845 in JTGE51.
4.3
When the test piece is drilled on site, a cutting machine is used to cut both ends of the test piece to ensure that the height of the test piece is 150mm ± 2.5mm.
4.4
The sample size should not be less than 9.
5 Equipment
5.1 Testing machine
Using hydraulic servo or electronic servo material test system, the measurement accuracy is ±1%, with uniform and continuous loading and unloading and maintaining […]
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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.
Referenced standards
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