DISTRIBUTION, CHARACTER AND BASIC PROPERTIES OF CHERTS IN SOUTHWESTERN ONTARIO

A STUDY HAS BEEN MADE OF THE CHERTS OCCURRING IN SOUTHWESTERN ONTARIO WITH THE PURPOSE OF ESTABLISHING A CLASSIFICATION SYSTEM FOR USE IN LABORATORY TESTING PROGRAMS, FIELD PERFORMANCE STUDIES, AND THE SUBSEQUENT RATING OF CHERT FOR ALL MINERAL AGGREGATE USES. FIELD RELATIONSHIPS OF NODULAR AND GRAVEL CHERT WERE INVESTIGATED, AND LABORATORY STUDIES MADE OF THEIR MINERALOGY BY PETROGRAPHIC, X-RAY, AND CHEMICAL ANALYSES. PHYSICAL AND MECHANICAL PROPERTIES OF EACH TYPE OF CHERT WERE MEASURED AS WELL AS THE POTENTIAL CHEMICAL REACTIVITY AND RESISTANCE TO FREEZE-THAW DISRUPTION AND VOLUME CHANGE. CHERTS WERE DIVIDED INTO SEVEN TYPES, AND IT WAS CONCLUDED THAT THE METHOD OF CLASSIFICATION EMPLOYED COULD BE USED, BUT AN INTEGRATED KNOWLEDGE OF THE CHARACTER AND BASIC PROPERTIES OF EACH VARIETY IS REQUIRED TO INSURE ACCURATE VISUAL IDENTIFICATION. A MAP IS INCLUDED WHICH SHOWS THE APPROXIMATE LOCATIONS OF GRAVEL PITS, THE PERCENTAGE OF CHERT IN CERTAIN AREAS OF THE PROVINCE, AND OTHER DATA RESULTING FROM THE STUDY. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1966/124/124-004.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Mineral Aggregates and presented at the 45th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Ingham, K W
  • Dunikowska-Koniuszy, Z
• Publication Date: 1966

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 50-78
• Monograph Title: Aggregates for concrete
• Serial:
  • Highway Research Record
  • Issue Number: 124
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Chemical analysis; Chemical reactivity; Cherts; Classification; Freeze thaw durability; Laboratory studies; Laboratory tests; Measurement; Mechanical properties; Mineral aggregates; Mineralogy; Performance; Petrography; Physical properties; Ratings; Utilization; Volume changes; X ray analysis
• Uncontrolled Terms: Field performance
• Geographic Terms: Ontario (Province)
• Subject Areas: Geotechnology; Highways; Research;

Filing Info

• Accession Number: 00217441
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 18 1994 12:00AM