REPORT ON THE FIRST PHASE OF THE LIGHTWEIGHT AGGREGATE RESEARCH

LIGHTWEIGHT AGGREGATE CURRENTLY PRODUCED IN PUERTO RICO WAS EVALUATED FOR USE IN HIGHWAY AND BUILDING CONSTRUCTION. EXPANDED CLAY AND SHALE LIGHTWEIGHT AGGREGATE WERE FOUND SUITABLE FOR SURFACE TREATMENTS, FOR HOT MIX SURFACE COURSES IN ASPHALT PAVEMENTS AND ALSO IN CEMENT CONCRETE FOR BUILDINGS. AS NATURAL SANDS ARE BECOMING SCARCE ON THE ISLAND, THE LIGHTWEIGHT AGGREGATE FINES MAY BE USED AS FINE AGGREGATE TO REPLACE SAND IN CEMENT CONCRETE MIXES. IN FUTURE PHASES OF STUDY SUITABLE SOURCES OF RAW MATERIALS ON THE ISLAND FOR THE PRODUCTION OF LIGHTWEIGHT AGGREGATES WILL BE SOUGHT, AND TESTING PROCEDURES AND STANDARDS FOR PROPER QUALITY CONTROL OF LIGHTWEIGHT PRODUCTS WILL BE DEVELOPED.

• Supplemental Notes:
  • 61 Pp, 4 FiG, 19 TAB, 17 PHOT, 17 REF
• Corporate Authors:

  University of Puerto Rico

  Materials Lab, General Engineering Department
  ,   Puerto Rico 
• Authors:
  • Gandhi, P M
  • Santiago, E R
• Publication Date: 1970-10

Subject/Index Terms

• TRT Terms: Asphalt pavements; Concrete; Construction; Evaluation; Expanded clay aggregates; Expanded shale aggregates; Hot mix asphalt; Lightweight aggregates; Road construction; Surface course (Pavements); Surface treating
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00217887
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 10 1971 12:00AM