SORPTION MEASUREMENTS ON HARDENED CEMENT PASTE

ADSORPTION MEASUREMENTS WITH WATER WERE PERFORMED ON HARDENED CEMENT PASTE. THE ADSORPTION ISOTHERMS OBTAINED WERE EVALUATED WITH THE AID OF THE BRUNAUER, EMMETT, AND TELLER METHOD. AFTER STORAGE OF EQUAL DURATION AND FOR THE SAME WATER/CEMENT RATIO CEMENT PASTE SPECIMENS OF CLASS 375 AND CLASS 275 PORTLAND CEMENT CONTAIN THE SAME AMOUNT OF GEL. THEY DIFFER IN THE AMOUNT OF PORE SPACE, HOWEVER. THE VOLUME OF THE PORE SPACE FOR CEMENT PASTE WITH W/C EQUAL TO 0.5 AND W/C EQUAL TO 0.65 INCREASES WITH ADVANCING AGE. FOR CEMENT PASTE WITH W/C EQUAL TO 0.3 THIS VOLUME ATTAINS A MAXIMUM AFTER 28 DAYS' HYDRATION AT 20 C. A RELATIONSHIP BETWEEN THE PRESENT MEASUREMENTS AND THE STRENGTH OR THE CREEP PROPERTIES OF THE CEMENT PASTE IS DISCUSSED. /AUTHOR/

• Supplemental Notes:
  • Vol 19, No 10, PP 493-496
• Authors:
  • Splittgerber, H
  • Wittmann, F
• Publication Date: 0

Media Info

• Serial:
  • Zement-Kalk-Gips
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Adsorption; Cement; Concrete hardening; Creep properties; Gels; Hardness; Hydration; Isotherms; Measurement; Pastes; Pore space; Portland cement; Strength of materials; Water cement ratio
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00212508
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 1 1970 12:00AM