ELASTIC MODULI OF HARDENED PORTLAND CEMENT AND TRICALCIUM SILICATE PASTES: EFFECT OF POROSITY

AN UNDERSTANDING OF SUCH IMPORTANT PROPERTIES OF CONCRETE AS ELASTICITY, CREEP AND DRYING SHRINKAGE REQUIRES KNOWLEDGE OF THE ELASTIC MODULI OF THE HARDENED PORTLAND CEMENT PASTE BINDER. THE ELASTIC MODULI OF HARDENED PORTLAND CEMENT PASTES DEPEND ON BOTH THE POROSITY AND THE ELASTIC MODULI OF THE CONSTITUENT SOLID PHASES. A RESONANCE FREQUENCY METHOD WAS DEVELOPED FOR USE WITH THIN (1-2MM THICKNESS) SLABS OF HARDENED PORTLAND CEMENT AND TRICKLEIUM SILICATE PASTES. ELASTIC MODULI CALCULATED FROM THE RESONANCE FREQUENCIES WERE STRONGLY POROSITY DEPENDENT; POISSON'S RATIO WAS NOT. /PCA/

• Authors:
  • Helmuth, Richard A
  • Turk, Danica H
• Publication Date: 0

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Binders; Calcium compounds; Concrete; Concrete hardening; Creep; Drying; Modulus of elasticity; Poisson ratio; Porosity; Portland cement; Resonance frequency; Shrinkage; Silicates
• Uncontrolled Terms: Hardened concrete
• Old TRIS Terms: Concrete creep; Poissons ratio
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213643
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 210
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM