ASTM D5889/D5889M-16
土工合成粘土衬里的质量控制标准实施规程
Standard Practice for Quality Control of Geosynthetic Clay Liners
- 标准号
- ASTM D5889/D5889M-16
- 发布
- 2016年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM D5889/D5889M-18
- 当前最新
- ASTM D5889/D5889M-18(2022)
- 引用标准
- ASTM D1505 ASTM D4439 ASTM D4632/D4632M ASTM D5199 ASTM D5261 ASTM D5887 ASTM D5890 ASTM D5891/D5891M ASTM D5993 ASTM D5994/D5994M ASTM D6243/D6243M ASTM D6496/D6496M ASTM D6693/D6693M ASTM D6768/D6768M ASTM D792 ASTM D882
- 适用范围
4.1 GCLs must be properly manufactured in a manner consistent with a minimum level of quality control as determined by in-house testing of the final product. This practice suggests the types of tests, the methods of the testing and the minimum testing frequencies.
(A) The tests on the bentonite are to be performed on the as-received material before fabrication into the GCL product.(B) Cert letter from component manufacturer or QA from GCL manufacturer, or both. Cert letters must arrive and be checked before the components are used for the GCL production.(C) If the moisture content from the bentonite added during production did not change, the mass per unit area and moisture content of the bentonite (evaluated according to 1.3 in Table 1) can be used to determine the values of the finished GCL product.(D) Components from finished GCL product should not be separated and tested, because the production process may alter the properties of the components.(E) MARV–minimum average roll value, only evaluated for a one-year production period with an average value minus 2 standard deviations. If the production period is less than one year, for example, for job-specific products, a MARV value may not be able to be evaluated, then the minimum value shall be reported.(F) Dried bentonite should be defined as 08201;% moisture content.(G) Internal shear testing (Test Method D6243/D6243M) may be applicable to quality control of the bonding strength of non-needle-punched reinforced and stitch-bonded GCLs.(H) This test is not applicable for multi-component GCLs (for example, products with geomembrane backing(s), geofilm backing(s), or polymer backing(s)).4.2 It should be clearly recognized that manufacturers may perform additional tests or at greater frequency than required in this practice, or both. In this case, the manufacturer's quality control plan will then take precedence over this practice. The quoted tests and test methods in Table 1 must appear in the QC plan and the QC report.
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