The Geosynthetic Materials Association (GMA) provides engineering support, business development opportunities, educational programming, government relations expertise and industry recognition. GMA influences specifications and lobbies on behalf of member companies. GMA targets key U.S. states to expand the geosynthetics market. The Geosynthetic Materials Association provides a network to exchange information, solve common problems and develop mutually …

27 km of geotextile tubes were installed to reclaim the 4.1 km by 26m wide works platforms and construct the 600,000 m3 dredged sediment containment facility for construction of Lach Huyen Bridge.

In order to meet the project specifications of designing a geogrid reinforced vegetated wirewall with permanent geogrid facing material, A hybrid Vertical Mechanically Stabilized Earth (VMSE) wall using Hilfiker® wire facing baskets and geosynthetic reinforcement was designed. This work consisted of furnishing and constructing Mechanically Stabilized Earth (MSE) retaining walls and Reinforced Soil Slope (RSS) walls. Miramesh® GR is a green mesh facing to provide an instant green face prior to vegetation growth. It is UV coated to provide 75 to 100 year design life for permanent MSE wall face and slope face. It provides surface erosion protection and secondary reinforcement in MSE structures. The erosion protection facilitates establishment of vegetation and provides structural support for the forming of battered and vertical face MSE walls and oversteepened slopes. The secondary reinforcement facilitates compaction and prevents surficial sloughing at the slope face.

From top down, the plan call outs, “4” Hot asphalt concrete pavement, 8” Roadway aggregate, Earthwork geotextile, type III-A, Mirafi® RS280i, 10” Select borrow, Earthwork geotextile, type I-A, Mirafi® H2Ri”

A. Geotextile: a. The geotextile shall be woven from super high-tenacity polypropylene yarns with a weave pattern to maximize strength, water flow, soil interaction and soil retention. The yarns shall be from high-tenacity long-chain synthetic polymers composed of at least 95 percent by weight of polyolefins or polyesters. They shall form a stable network such that the filaments or yarns retain their dimensional stability relative to each other, including selvages. b. The geotextile shall meet the requirements of Table 1. All numeric values in Table 1 except AOS represent MARV in the specified direction. Values for AOS represent maximum average roll values. c. All geotextile products shall have a separation factor of 0.9 or higher per ASTM D422, Modified. d. Approved geotextiles are as follows: Mirafi® RS380i