PULP WASTE AND HERBICIDE MAKE LOW-COST STABILIZER

A study is reported of two miles of dirt (low-volume) road bases experimentally stabilized with lignin sulfonate papermill waste and herbicide mixture. One gal. of herbicide (labelled for use with asphalt and concrete) was mixed in 200 gal. of lignin sulfonate and applied at a rate of 1- 1.2 gal per sq. yd. of road base to a 6-in. depth by pulverizer. Application was made at 8 locations. Some road sections were left untreated for comparison. The ideal road base consists of 25 percent coarse material, 25 percent sand and 50 percent clay or fine material. Sometimes gravel, lime or clay is hauled in. It is preferable to apply an impervious seal over the material because the lignin is water soluble. In a typical application, the road is shaped with a grader and base material of the correct consistency is scarified to a 6-in. depth. A pulverizer then passes through the road to reduce soil particles to a maximum size of 1 in. Following the integral application of the lignin sulfonate within the base course, the road is rolled with a rubber-tire roller to seal moisture and material. Afterward, the road is additionally compacted to proper density. One or two days later, aseal coat of lignin sulfonate is applied at a rate of 0.15 to 0.20 gal. per sq. yd. on top of the lignin sulfonate base. An impervious seal coat from 0.5 to 1.50 in. thickness is placed on top of the road.

  • Corporate Authors:

    Scranton Publishing Company

    434 South Wabash Avenue
    Chicago, IL  United States  60605
  • Publication Date: 1975-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00098479
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 30 1975 12:00AM