DEFORMATION AND FAILURE OF HARDENED CEMENT PASTE AND CONCRETE SUBJECTED TO SHORT TERM LOAD /IN RUSSIAN/

A BASIC FEATURE OF CRACK DEVELOPMENT IS THAT IN THE VICINITY OF THE END AREA OF THE CRACK THE MATERIAL IS ALWAYS DEFORMED BEYOND THE ELASTIC LIMIT. THIS EXCLUDES THE POSSIBILITY OF DESCRIBING THE PROCESS BY CLASSICAL METHODS OF THE THEORY OF ELASTICITY AND OPENS THE WAY FOR NEW CONCEPTS ABOUT THE MECHANICS OF CONTINUOUS MEDIA. THE NATURE OF THE INTERACTION BETWEEN THE PARTICLES IN THE END AREA OF THE CRACK ACQUIRES CONSIDERABLE IMPORTANCE IN THIS RESPECT. THE PRESENT STUDY, WHICH TAKES AS ITS STARTING POINT A MATHEMATICAL MODEL DEVELOPED BY LEONOV AND PANASYUK FOR DEFINING THE STRENGTH OF THE INTERPARTICLE BONDS IN THIS AREA, APPLIES METHODS OF FRACTURE MECHANICS TO CONCRETE AND HARDENED CEMENT PASTE IN COMPRESSION. A SIMPLIFIED MODEL OF A BRITTLE POROUS MATERIAL IS INTRODUCED AND USED TO DERIVE SOLUTIONS OF CRACK PROPAGATION IN THE NEIGHBORHOOD OF ONE AND TWO PORES. THE MONTE CARLO METHOD IS USED TO ANALYZE CRACK PROPAGATION IN MATERIAL WITH RANDOMLY DISTRIBUTED PORES. THE THEORETICAL PREDICTIONS ARE COMPARED WITH EXISTING EXPERIMENTAL RESULTS.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Supplemental Notes:
  • Vol 1, No 1, PP 123-137, 5 FIG, 15 REF
• Authors:
  • Zaitsev, J V
• Publication Date: 1971-1

Media Info

• Serial:
  • Cement and Concrete Research
  • Volume: 1
  • Issue Number: 1
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement paste; Compression; Concrete; Concrete hardening; Cracking; Deformation; Failure; Fracture mechanics; Hardness; Loading and unloading; Mathematical models; Monte Carlo method; Pores; Probability theory
• Uncontrolled Terms: Crack propagation; Fracture; Pores
• Old TRIS Terms: Loading time
• Subject Areas: Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00214021
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 3 1971 12:00AM