Two methods of dispersing the salt in the base course are described. If a complete new base is to be constructed, the addition of salt through a centrally located pug-mill is recommended. The salt is admixed in specified amounts at the time of loading for final spreading on the road, followed by standard procedures for spreading and compacting. However, if a partially satisfactory base is already in existence and major horizontal and vertical alignment changes are unnecessary, the sweetened base may be stabilized by road mixing the required amount of salt in place. This may be effected by one of 2 methods: by use of the pulvimixer of multi-press rotary stabilization machine; by use of motor-patrol graders to blade mix the salt and aggregate. In either method, 6 or 7 in. of the existing material is scarified and salt is spread at the predetermined rate by mechanical spreaders. Water is added with water wagons so that moisture content is brought up to near the optimum value. The optimum amount of salt for stabilization is between 0.5 and 1.0 percent based on the dry weight of the aggregate. Excessive amounts of sodium chloride may prove deterimental. The costs of salt stabilization are discussed.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Authors:
    • Meade, R V
  • Publication Date: 1965-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00083799
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 29 1975 12:00AM