Precast Modular Block Retaining Wall Specification
PRECAST MODULAR BLOCK RETAINING WALL Section 32 32 16 4 1/13/2016 . 4. Soils . a. AASHTO M 145 – AASHTO Soil Classification System. b. AASHTO T 104 – Standard Method of Test for Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate. c. AASHTO T 267 – Standard Method of Test for Determination of Organic Content in Soils