Summary

This is a specifications document from the Louisiana Department of Transportation and Development Maintenance Division for Expanded Clay Aggregate, 3/16 inch, used for crack sealing in asphaltic pavement and Portland Cement Concrete Pavement. The specification establishes material requirements and grading standards for the aggregate product, identified as Product ID 11497 and MS 274-005, revised as of September 16, 2021.

The material must conform to specific gradation requirements and be sourced from an approved source listed on the Approved Materials List (AML) for Aggregates. The gradation specifications require 100 percent passing through 3/4 inch, 1/2 inch, and 3/8 inch sieves, with progressively lower passing percentages through finer sieves: 95-100 percent through No. 4, 35-80 percent through No. 8, 15-50 percent through No. 16, 5-30 percent through No. 30, 0-20 percent through No. 50, and 0-15 percent through No. 100. Material sampling will be conducted in accordance with the Materials Sampling Manual. No pricing, funding, or contract term information is included in this technical specifications document.