POLYMERIZATION MAKES TOUGHER CONCRETE

THE FEASIBILITY AND TECHNIQUES, ARE REPORTED OF IMPREGNATING AND INPLACE POLYMERIZING OF LIQUID MONOMERS IN PREFORMED CONCRETE, AND THE USE OF MONOMERS IN A FRESH CONCRETE MIX, FOLLOWED BY POLYMERIZATION. TWO METHODS OF INITIATING POLYMERIZATION - GAMMA RADIATION AND THERMAL- CATALYTIC - ARE BEING STUDIED. STUDIES INCLUDE DEVELOPMENT OF IMPREGNATION TECHNIQUES AND DETERMINATION OF THE EFFECTS OF VARIOUS POLYMER LOADINGS ON RESULTANT PROPERTIES. THE RADIATION TECHNIQUE PRODUCES GREATER IMPROVEMENTS IN PROPERTIES THAN DOES THE THERMAL-CATALYTIC METHOD. DRAMATIC IMPROVEMENTS IN CONCRETE PROPERTIES RESULTING FROM THE IMPREGNATION-IRRADIATION WITH METHYL METHARCRYLATE ARE DISCUSSED. FOR EXAMPLE, COMPRESSIVE AND TENSILE STRENGTH AND MODULUS OF RUPTURE ARE INCREASED BY 256 TO 290 PERCENT; WATER PERMEABILITY DECREASED TO NEGLIGIBLE VALUES; WATER ABSORPTION DECREASED AS MUCH AS 95 PERCENT; AND RESISTANCE TO ABRASION, CAVITATION, FREEZING AND THAWING, DISTILLED WATER, SOLUBLE SULFATES, AND ACID SHOWED SIGNIFICANT IMPROVEMENTS. /AUTHOR/

• Supplemental Notes:
  • Vol 66, No 10, PP 829-839
• Authors:
  • Dikeou, J T
• Publication Date: 1969-10

Media Info

• Serial:
  • Am Concrete Inst Journal & Proceedings

Subject/Index Terms

• TRT Terms: Abrasions; Absorption; Admixtures; Cavitation (Mechanics); Compressive strength; Concrete; Freeze thaw durability; Gamma rays; Heat radiation; Impregnation (Engineering); Modulus of rupture; Monomers; Polymerization; Tensile strength; Water
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213441
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 16 1970 12:00AM