1.1 This test method is used to determine the long-term connection displacement properties between a layer of geosynthetic reinforcement and segmental concrete block units used in construction of reinforced soil retaining walls. The test is carried out under conditions determined by the user that reproduce the connection system at full-scale. The results of a series of tests are used to define a relationship between long-term connection displacement for a segmental unit-geosynthetic connection system and normal load. 1.2 This is a performance test used to determine properties for design of retaining wall systems utilizing segmental concrete units and soil reinforcing geosynthetics, either geotextiles or geogrids. The test is performed on a full-scale construction of the connection and may be run in a laboratory or the field. 1.3 The values stated in SI units are regarded as the standard. The values stated in inch-pound units are provided for information only. 1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
The long-term connection displacement of modular block systems utilizing geosynthetics as the reinforcement is currently being assessed by independent testers. There is no standardized test method for this test.
KeywordsLong-term connection creep; sustained load testing of modular blocks and geosynthetics.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development