Research Reports
Report Details
| Title: | Physical and Chemical Stability of Admixtures in Unpaved Road Soils |
| Authors: | Arnold DeCastro, Thomas Edgar, David Foster, and Arthur Boresi |
| University: | University of Wyoming |
| Publication Date: | Mar 1996 |
| Report #: | MPC-96-52 |
| Project #: | MPC-079 |
| TRID #: | 00722159 |
| Keywords: | admixtures, calcium chloride, computer programs, environmental impacts, leaching, lignosulfonate, magnesium chloride, moisture content, motion, physical properties, rain, simulation, soils, stability (mechanics), surface course (pavements), unpaved roads |
| Type: | Research Report – MPC Publications |
Abstract
This project has investigated the performance of the admixtures during and after leaching has occurred. This report presents information in two main areas of investigation. The first is a soil column study to determine downward, one-dimensional solute transport properties and trends of the admixtures lignin sulfonate, magnesium chloride and calcium chloride. The second area is a rain simulation study to evaluate various physical properties of the road surface related to the addition of the admixtures and/or Kaolinite. These properties include infiltration rates, runoff rates, erosion, and upward leaching of the admixtures into the surface runoff water. These two sections of the study allow the effective life of the admixtures to be determined. From the effective life, an admixture application schedule is developed.
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