THE BENDING STRENGTH OF CEMENT MORTAR WITH AN ADMIXTURE OF POLYVINYL ACETATE /IN POLISH/

A METHOD WAS SOUGHT TO INCREASE THE TENSILE STRENGTH OF CEMENT MORTARS WHEN BENT. THE INFLUENCE OF THE WATER-CEMENT RATIO AND THE INFLUENCE OF THE ADDITIVES - CALCIUM CHLORIDE, SODIUM FLUOSILICATE, ETC., AND RECENTLY POLYVINYL ACETATE - WERE STUDIED. TWO GRADES OF CEMENT 250 AND 350, WERE USED FOR THE INVESTIGATION. THE RATIO OF THE COMPONENTS OF THE MORTAR ADOPTED WERE AS FOLLOWS' 1'1'2 OR CEMENT TO FINE- GRAINED SAND AND COARSE-GRAINED SAND, /WATER-CEMENT RATIO: 0.6/. THE AMOUNT OF HYDROUS EMULSION OF POLYVINYL ACETATE ADDED, THE TIME AND CONDITIONS OF STORING WERE THE VARIABLES IN THESE INVESTIGATIONS. POLYVINYL ACETATE WAS USED AS AN ADMIXTURE IN AMOUNTS OF 2.5 TO 30 PERCENT, CHANGED EVERY 2.5 PERCENT. A DESCRIPTION IS GIVEN OF THE CONDITIONS OF CURING THE SAMPLE BARS /4X4X16CM/, OF THE CHARACTERISTICS OF THE COMPONENTS OF THE MORTARS, AND THE RESULTS OF THE INVESTIGATIONS. AN ADMIXTURE OF THE EMULSION OF POLYVINYL ACETATE WAS FOUND TO CONTRIBUTE TO INCREASED TENSILE STRENGTH WHEN CEMENT MORTARS CURED IN AIR ARE BEING BENT. /CR/

  • Supplemental Notes:
    • No 6, pp 148-155
  • Corporate Authors:

    Cement, Wapno, Gips /Poland

    ,    
  • Authors:
    • Pierzchala, H
  • Publication Date: 1964

Subject/Index Terms

Filing Info

  • Accession Number: 00212411
  • Record Type: Publication
  • Source Agency: Am Concrete Inst Journal & Proceedings
  • Files: TRIS
  • Created Date: Aug 23 1994 12:00AM