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SAMPLE RETAINING WALL SPECIFICATION www.naturalstonewallsolutions.com © Natural Stone Wall Solutions, Inc. 2014 SCOPE Work includes furnishing and installing a prefabricated modular natural stone retaining wall system to the lines and grades designated on the construction drawings. REFERENCES The following standards and specifications listed below form a part of this specification where applicable. 1. Stone and Concrete Retaining Wall Units. 1. ASTM C 140 H Sampling and Testing Concrete Masonry Units. 2. ASTM C 94 – ReadyHMixed Concrete 2. Geosynthetic Reinforcement. 1. ASTM D 4595 HTensile Properties of Geotextiles by the WideHWidth Strip Method. 2. ASTM D 5262 HTest Method for Evaluating the Unconfined Creep Behavior of Geosynthetics. 3. GRI:GG1 H Single Rib Geogrid Tensile Strength. 4. GRI:GG5 H Geogrid Pullout. 3. Soils. 1. ASTM D 698 H Moisture Density Relationship for Soils, Standard Method. 2. ASTM D 422 H Gradation of Soils. 3. ASTM 4318 H Atterberg Limits of Soil. 4. Drainage Pipe. 1. ASTM 3034 H Specification for Polyvinyl Chloride (PVC) Plastic Pipe. 2. ASTM D1248 H Specification for Corrugated Plastic Pipe. MODULAR STONE RETAINING WALL A. Stone: Natural quarry dimension stone such as granite and untreated bulk architectural aged or quarried fieldstone. B. Reinforcement: Epoxy coated reinforcement bars to be sized and spaced per specification. In conformance to ASTM A934. C. Concrete: Concrete shall have compressive strength of no less than 4,000 PSI. In conformance with ASTM C33 and ACI 301H10. D. Geogrid: Geogrid reinforcement shall be manufactured for soil reinforcement composed of high molecular weight, high tenacity, polyester multifilament yarns which are woven in tension and finished with a PVC coating. E. Drainage: Drainage weep holes made of PVC 2” diameter schedule 40 pipe and tied to 4” diameter flexible perforated drainpipe. The wall shall have weep holes at spacing as specified.
