FLUORESCENT THIN SECTIONS TO OBSERVE THE FRACTURE ZONE IN MORTAR

There have been relatively few studies of the microstructural details of the fracture zone of propagating cracks in mortars and concretes. The lack of information about the details has hindered the development and validation of fracture mechanics theories based on the micromechanisms of cracking. This report deals with the use of fluorescent thin sections to observe the microstructural details of the fracture zone. A mortar is used to illustrate the technique. It is concluded that the fluorescent thin section technique has the potential of providing a valuable new source of information on the microstructural details of the fracture zone in mortars and concretes, both near the surface and in the interior of specimens.

• Supplemental Notes:
  • This paper was published in Cement and Concrete Research, Volume 14, pp 339-344, 1984.
• Corporate Authors:

  National Bureau of Standards

  Gaithersburg, MD  United States 

  Virginia Highway and Transportation Research Council

  Charlottesville, VA  United States 
• Authors:
  • Knab, L I
  • Walker, H N
  • Clifton, J R
  • Fuller, E R
• Publication Date: 1983-9

Media Info

• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Beams; Concrete; Cracking; Fluorescence; Fracture mechanics; Microstructure; Mortar; Ridesharing; Taxicabs; Test procedures
• Uncontrolled Terms: Concrete beams; Crack propagation; Fracture; Zone
• Old TRIS Terms: Shared ride
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00393813
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Jun 30 1985 12:00AM