SILICONE STUDY

A LABORATORY STUDY WAS CONDUCTED ON THE EFFECT OF ONE SILICONE, USED AS A SURFACE TREATMENT OR AS AN INTEGRAL ADMIXTURE, ON LIGHTWEIGHT OR HARDROCK CONCRETE. ONE AIR- ENTRAINED LIGHTWEIGHT CONCRETE AND ONE HARDROCK CONCRETE MIXTURE WAS USED. THESE TESTS INDICATE THAT THE SILICONE SURFACE TREATMENTS APPLIED 24 HOURS AFTER PLACING RESULTED IN LOWER STRENGTHS THAN WAS OBTAINED FOR CONCRETE CURED 7 DAYS MOIST FOR BOTH LIGHTWEIGHT AND HARDROCK CONCRETES. A SILICONE SURFACE TREATMENT APPLIED TO AIR-ENTRAINED CONCRETE AT 28 DAYS HAD NO APPRECIABLE EFFECT ON THE DURABILITY OF LIGHTWEIGHT CONCRETE AND WAS DETRIMENTAL TO HARDROCK CONCRETE. WHEN SILICONE WAS USED AS AN INTEGRAL ADMIXTURE, THE COMPRESSIVE STRENGTH OF AIR-ENTRAINED LIGHTWEIGHT CONCRETE VARIED FROM MINUS 21% TO PLUS 22%, DEPENDING ON THE QUANTITY OF SILICONE USED. THE SETTING TIME OF THE CONCRETE WAS RETARDED MORE THAN WOULD ORDINARILY BE DESIRABLE FOR ALL QUANTITIES OF SILICONE ADMIXTURE USED.

  • Supplemental Notes:
    • Hpr-1/3/, 63-9C. The University of Southwestern Louisiana is now the University of Louisiana, Lafayette.
  • Corporate Authors:

    University of Louisiana, Lafayette

    104 University Circle
    Lafayette, LA  USA  70504
  • Authors:
    • Reeves, J W
    • Fournet, J B
  • Publication Date: 1966-1-31

Subject/Index Terms

Filing Info

  • Accession Number: 00211991
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 1 1994 12:00AM