AASHTO M 216 PDF download

Standard Specification for Quicklime and Hydrated Lime for Soil Stabilization (ASTM Designation: C 977-18)

AASHTO M 216 – Standard Specification for Quicklime and Hydrated Lime for Soil Stabilization (ASTM Designation: C 977-18)

This specification pertains to quicklime and hydrated lime, either high calcium, dolomitic, or magnesian lime, for use in stabilization of soils. (See Notes 1 and 2.)
Note 1 – Quicklime and hydrated lime act on clay soils and may render such soils suitable for highway construction and other load-bearing applications. In most cases, lime causes finely divided clay particles to agglomerate into coarser particles, which improves load-bearing properties, and subsequently the lime-treated soil hardens by chemical reaction.
Note 2 – No attempt is made to present requirements for by-product lime, commercial lime slurry, etc. Specification requirements for these materials could be better determined on a local basis.