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GB/T 4508-2010: Standard test method for ductility of bitumen
Status: Valid GB/T 4508: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4508-2010 | English | 169 |
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3 days [Need to translate]
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Standard test method for ductility of bitumen
| Valid |
GB/T 4508-2010
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| GB/T 4508-1999 | English | 239 |
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Standard test method for ductility of bitumen
| Obsolete |
GB/T 4508-1999
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| GB/T 4508-1984 | English | RFQ |
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Test method for ductility of petroleum bitumens
| Obsolete |
GB/T 4508-1984
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PDF similar to GB/T 4508-2010
Basic data | Standard ID | GB/T 4508-2010 (GB/T4508-2010) | | Description (Translated English) | Standard test method for ductility of bitumen | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E43 | | Classification of International Standard | 75.140 | | Word Count Estimation | 7,721 | | Date of Issue | 2011-01-10 | | Date of Implementation | 2011-05-01 | | Older Standard (superseded by this standard) | GB/T 4508-1999 | | Quoted Standard | GB/T 4509; GB/T 5304 | | Adopted Standard | ASTM D113-1999, MOD | | Regulation (derived from) | National Standard Approval Announcement 2011 No.1 (Total No.166) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the method for the determination of asphalt ductility. This standard applies to the determination of the asphalt material ductility. | GB/T 4508-2010: Standard test method for ductility of bitumen---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.
Standard test method for ductility of bitumen
ICS 75.140
E43
National Standards of People's Republic of China
Replacing GB/T 4508-1999
Determination of asphalt ductility
Issued on. 2011-01-10
2011-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts the American Society for Testing and Materials standard ASTMD113.1999 "Determination of asphalt ductility" (in English).
This standard is based on ASTMD113. redrafted 1999.
This standard ASTMD113.1999 main technical differences are as follows.
--- The standard delete the reference file ASTMC670, ASTME1, ASTME11 three references (see ASTM
D113.1999 Chapter 2);
--- Because they do not belong to the state content standards, this standard delete meaning and purpose (see ASTMD113.1999 Chapter 3);
--- Because sifting process may affect the ductility of the sample, so this standard sieving deleted the relevant content (see
ASTMD113.1999 5.1);
--- When the temperature of the sample can affect the sample ductility properties of sample time and sample quality-related, so this standard to increase the heating temperature and heating
Between the restriction that "oil asphalt heating oil temperature does not exceed the expected softening point of 90 ℃; sample heating temperature coal tar pitch
Coal tar pitch is expected to not more than the softening point of 60 ℃. Heating time of the sample does not affect the nature of the sample and the sample to ensure adequate
As short as possible on the basis of the flow. "(See the present version 5.2);
--- In order to correctly judge the effectiveness and proper report analyzed data sample parallel data, this report adds to the standard three measured values
The limits. That is, "if the three measured value within 5% of their average value, averaged measurement results as three parallel measurement results
fruit. If the measured value is not less than three times the average of 5%, but two high values \u200b\u200bwithin 5% of the average, the most discarded
Low measured value, whichever is the higher value of the two as the average of the measurement results, otherwise re-determination. "(See Chapter 7 of this edition);
Repeatability and expressed in 1999 in the form of graphs. --- In order to facilitate the use of precision standard, this standard will ASTMD113
Reproducibility repair translated into concrete figures (see Chapter 8 of this release, ASTMD113.1999 7.1).
This standard ASTMD113.1999 reg changes are as follows.
--- The 1.1 "asphalt specimen at a certain temperature at a constant speed to stretch the length of the fracture of the specimen shall comply with the provisions in 5.1
size. ECA special instructions, test temperature is 25 ℃ ± 0.5 ℃, tensile speed of 5cm/min ± 0.25cm/min. "Inside
Yung moved to Chapter 3 of this standard method summary;
--- The standard delete ASTMD113.1999 Chapter 3, meaning and purpose;
--- The increase in Chapter 3, Standard Method summary;
--- The standard delete ASTMD113.1999 in Chapter 8;
--- This standard ASTMD113.1999 Chapter 5 Experimental procedure is divided into two chapters, namely Chapter 5 and Chapter 6 Preparing Real
Inspection step; other chapter number changes accordingly.
This standard ASTMD113.1999 compared to editorial changes as follows.
--- Remove all brackets non-SI units, retained SI units (see text).
This standard replaces GB/T 4508-1999 "Determination of asphalt ductility."
This standard and GB/T 4508-1999 major content changes are as follows.
--- This standard GB/T 4508-1999 range "1.1 asphalt specimen at a certain temperature at a constant speed to stretch at break
The length of the specimen shall conform to the dimensions specified in 5.1. ECA special instructions, test temperature is 25 ℃ ± 0.5 ℃, tensile speed
5cm/min ± 0.25cm/min. "Move to Chapter 3 of this standard method summary;
--- This standard 1999 Edition Chapter 1, the range of "1.2 This standard applies to the determination of the extension of the asphalt, also suitable for the determination of coal
Ductility tar pitch. "To" This standard applies to the determination of ductility of bituminous materials. ";
--- Delete this standard GB/T 4508-1999 Chapter 4, meaning and purpose. Corresponding changes for the subsequent chapter number;
--- The standard delete GB/T 4508-1999 Chapter 4 instruments and materials, "5.5 to 0.3 ~ 0.5mm mesh metal
Net "and make corresponding changes in the subsequent chapter number;
--- This standard removed the restrictions sample heating time, the words "heating time of the sample does not affect the nature of the sample and the sample charge guarantee
As short as possible on the basis of sub-flows. "(See this edition 5.2);
--- The 6.2 sample heating temperature is limited to "tar asphalt heating temperature does not exceed the expected softening point of 60 ℃, petroleum pitch does not exceed
It had expected a softening point of 90 ℃. "(See this edition 5.2);
--- This standard GB/T 4508-1999 5.4 Notes content to "if the extension of the sample is placed in 25 ℃ standard penetration bath
When the constant temperature above the thermometer can be used GB/T 4509 set forth in the thermometer in place "(see this edition 4.4);
--- The GB/T 4508-1999 support plate in 5.7 "metal plate or glass" to "brass plate";
--- The GB/T 4508-1999 "on a sample drawn into a cone" to "sample was drawn into a tapered or linear or cylindrical." (See Excerpts
6.3, GB/T 4508-1999 7.3);
--- The 1999 edition of the standard delete 5.2 "put the melted sample sieved."
This standard by the National Standardization Technical Committee on Petroleum Products and Lubricants made.
This standard by the National Standardization Technical Committee lubricant oil asphalt petroleum products and the Technical Committee.
This standard was drafted. China University of Petroleum (East China) Heavy Oil Research Institute.
The main drafters of this standard. Superficially, car Jinliang.
This standard replaces the standards previously issued as follows.
--- GB/T 4508-1984, GB/T 4508-1999.
Determination of asphalt ductility
WARNING --- This standard does not specify issues relating to security, if needed, before using the user's responsibility to develop the right people
Body safety precautions.
1 Scope
This standard specifies the method for determination of asphalt ductility.
This standard applies to the determination of ductility of bituminous materials.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 4509 asphalt penetration assay
GB/T 5304 Asphalt Thin Film Oven Test Method
3 Method Summary
The melted sample was poured into special molds, cooled to room temperature, and then kept at the test temperature into the water bath, with a hot knife
Slashing up mold sample, mold back into the water bath, and then after a certain time, and then moved to the extension of the test instrument. Asphalt test record
Member at a temperature at a constant rate to the length of the stretch at break. Specimen size shall comply with the provisions in 5.1. ECA special instructions, test
Test temperature is 25 ℃ ± 0.5 ℃, tensile speed of 5cm/min ± 0.25cm/min.
4 Apparatus and materials
4.1 Mould. mold should be given in Figure 1 style design. Specimen mold made of brass by two arcuate end mold and two side modules
A size range shown in Figure 1. The mold assembly.
4.2 water bath. water bath to maintain test temperature of not more than 0.1 ℃, capacity of at least 10L, the specimen is immersed in water depth of not less than
10cm, bath set perforated shelf to support the specimen rack from the bottom of the water bath must not be less than 5cm.
4.3 meter extension. extension for measuring asphalt for those who can satisfy the provisions of 6.1 will continue specimen immersed in water, in accordance with a
Given speed tensile specimens instruments can be used. The instrument should start without noticeable vibration.
4.4 Thermometer. 0 ℃ ~ 50 ℃, indexing is 0.1 ℃ and 0.5 ℃ each one.
Note. If the extension of the sample is placed in 25 ℃ standard penetration constant temperature bath, the above thermometer thermometer can be used instead of GB/T 4509 as stipulated.
4.5 release agent. the mass, the two glycerol and a talc modulation.
4.6 support plate. brass, one side should be polished to a surface roughness of Ra0.63.
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