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GB/T 9966.11-2021: Test methods for natural stone - Part 11: Determination of resistance to ageing by cold and thermal shock
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Test methods for natural stone - Part 11: Determination of resistance to ageing by cold and thermal shock
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GB/T 9966.11-2021
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Basic data | Standard ID | GB/T 9966.11-2021 (GB/T9966.11-2021) | | Description (Translated English) | Test methods for natural stone - Part 11: Determination of resistance to ageing by cold and thermal shock | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q21 | | Word Count Estimation | 6,670 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 9966.11-2021: Test methods for natural stone - Part 11: Determination of resistance to ageing by cold and thermal shock
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods for natural stone-Part 11.Determination of resistance to ageing by cold and thermal shock
ICS 91.100.15
Q21
National Standards of People's Republic of China
Natural stone test method
Part 11.Determination of accelerated aging strength by chilling and heating
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
GB/T 9966 "Natural Stone Test Method" is divided into 18 parts.
---Part 1.Compressive strength test after drying, water saturation, freeze-thaw cycles;
---Part 2.Bending strength test after drying, water saturation, freeze-thaw cycles;
---Part 3.Water absorption, bulk density, true density, true porosity test;
---Part 4.Abrasion resistance test;
---Part 5.Hardness test;
---Part 6.Acid resistance test;
---Part 7.Hanging strength test of stone pendant combination unit;
---Part 8.Test method for testing the structural strength of stone hanging system with uniform static pressure difference;
---Part 9.Determine the dynamic elastic modulus by measuring the fundamental frequency of resonance;
---Part 10.Determination of the seismic performance of pendant assembly units;
---Part 11.Determination of accelerated aging strength by chilling and heating;
---Part 12.Determination of static elastic modulus;
---Part 13.Determination of Capillary Water Absorption Coefficient;
---Part 14.Determination of resistance to fracture energy;
---Part 15.Determination of resistance to salt spray aging;
---Part 16.Determination of Linear Thermal Expansion Coefficient;
---Part 17.Determination of salt crystal strength;
---Part 18.Lithofacies analysis.
This part is Part 11 of GB/T 9966.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the China Building Materials Federation.
This part is under the jurisdiction of the National Stone Standardization Technical Committee (SAC/TC460).
This section was drafted by. Sinoma IOL Research Institute Co., Ltd., Beijing Sinoma IOL Research Institute Co., Ltd., Universal Stone (Fu
Construction) Co., Ltd., Wanlong Stone Industry (Fujian) Co., Ltd.
The main drafters of this section. Zhou Junxing, Li Wenhong, Kai Wanli, Lin Zhenyi.
Natural stone test method
Part 11.Determination of accelerated aging strength by chilling and heating
1 Scope
This part of GB/T 9966 specifies the principle, equipment, sample preparation, and test of natural stone resistance to chilling and heat accelerated aging test
Procedures, test results and test reports.
This section applies to the determination of natural stone that may change under intense temperature changes (thermal shock) conditions.
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 reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 9966.9-2021 Natural stone test method Part 9.Determination of dynamic elastic modulus by measuring the fundamental frequency of resonance
GB/T 17670 Unified numbering of natural stone
3 Principle
After the sample is dried to constant weight at (105±5)℃, it is subjected to periodic cyclic treatment in turn, that is, at (105±5)℃
Immediately after drying, immerse it in (20±5)℃ water, repeat 20 times before and after.
4 Equipment
4.1 Blast drying oven. can maintain the temperature at (105 ± 5) ℃.
4.2 Flat-bottomed container with lid. There is a sample holder that has no oxidation and no adsorption to the sample.
4.3 Balance. can be accurate to 0.01% of the weighed mass.
4.4 A set of measuring equipment for dynamic elastic modulus.
4.5 Desiccator. a sealed container that can hold at least one set of samples with a built-in desiccant.
5 Sample preparation
5.1 Number of samples
At least 7 samples should be prepared from the same batch of test samples. Observe each sample and pay attention to all changes, such as cracks, holes, etc. Sample
The working surface should be consistent with the surface actually used. When there is an anisotropic surface, the direction should be clearly marked with two parallel lines on the sample.
5.2 Specimen size
The size of the sample is.200mm×200mm×20mm, and the deviation is ±2.0mm. If the change of the sample has an impact on the performance, you can
To choose other sizes, and specify.
At least one side of the sample should be smooth. If polishing is not possible, at least one side of the sample should be smooth and flat by conventional treatment. its
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