Work Item
ASTM WK76667
New Test Method for Tensile Strength of Geosynthetic Cementitious Composite Materials GCCM
1. Scope
2.1 The scope of the Committee shall be the formulation of test methods, specifications, guides, practices, terminology, and the dissemination of knowledge dealing with geosynthetics. This would include but not be limited to geotextiles, geogrids, drainage nets, drainage composites, geosynthetic clay liners, geosynthetic erosion control products and sediment retention devices, geosynthetic strips, geofoam and geomembranes.
2.2. The formulation of test methods, specifications, guides, practices and terminology for Geosynthetic related products shall be considered by the Committee by establishment of special subcommittees approved by the Executive Subcommittee.
2.3 The work of this Committee will be coordinated with other ASTM committees or organizations having mutual interest.
Keywords
uncured tensile strength; cured tensile strength
Rationale
A new standard for determining the tensile strength testing method for GCCM materials is needed because the current tensile strength test methods do not deal directly with composite (Multiple element) materials, where the product is both a supple, textile-like material when uncured, then when hardened it becomes a thin shell-like hard structure. Specifically, the speed of testing for the two different phase materials needs to be significantly different. Also, the clamping mechanism may be different for the hardened/hydrated material compared with the uncured/un-hydrated. Notches may need to be cut in the cured specimens to encourage the initial break to occur away from the clamps.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 04-25-2021
Technical Contact: John Paulson
Item: 002
Ballot: D35.05 (22-01)
Status: Will Reballot Item