"The purpose of this book is to assist Colorado homebuyers and homeowners in reducing damage caused by swelling soils. Although risks from swelling soils cannot be completely eliminated, they can be significantly reduced through proper site investigation, design, construction, landscaping, and maintenance practices. An awareness of these topics may be critical for the Colorado homewoner whose house is built on swelling soils."--Cover.

Pavement construction and maintenance problems due to the presence of sulfates in limestabilized subgrade soils have been widely reported in many transportation projects. In Colorado, problems associated with sulfate-induced distresses have been observed at the Denver International Airport and, more recently, at the U. S. Highway 287 Berthoud By-pass project. It would be desirable if CDOT engineers could count on alternative soil stabilization techniques...

"Results from this report indicate that minor subgrade treatment often is not sufficient to prevent post-construction swelling."--Abstract

The swelling characteristic of Mancos Shale in Western Colorado has caused a great deal of maintenance problems ever since highways were paved. In an attempt to find a method to reduce or prevent this swelling, 19 test sections were included in a contract on IInterstate 70 near Grand Junction. After eight years of evaluation it has been concluded that Asphalt membranes on top of the subgrade and subexcavation and backfilling with an A-4 soil are good...

This set of guidelines generally follows current practice in the Division for obtaining soil profiles and is intended to establish standardized procedures for use by the District Materials Sections in the performance of uniform and adequate soils investigations. It is not design manual. The recommendations presented herein are oriented toward the solution of such problems as pavement design, slope design, slope appearance, cost, landslides, embankment...