RETARDATION OF THE INCREASE IN MECHANICAL STRENGTH OF SOIL- CEMENT MIXTURES

SOILS HIGH IN CARBONATE, AND SLIGHTLY ALKALINE, DO NOT AFFECT THE NORMAL SETTING AND HARDENING OF THE PORTLAND CEMENT, ALTHOUGH ACID SOILS FREE FROM CARBONATES SERIOUSLY RETARD THESE PROCESSES. THE RETARDATION EFFECTS, HOWEVER, SYSTEMATICALLY DIMINISH WITH INCREASING AGE OF THE MORTARS. THE RETARDATION IS ATTRIBUTED TO THE PRESENCE OF HIGHLY DISPERSED, HIGHLY ACTIVE ADSORBENTS FOR CALCIUM HYDROXIDE. ESPECIALLY THE HIGH CONTENT OF CHERNOZEM IN HUMIC MATERIAL IS RESPONSIBLE FOR THE STRONG ADSORPTION AND REDUCTION IN STRENGTH. TO OVERCOME THESE TROUBLES IN SOIL-CEMENT MORTAR, IT IS RECOMMENDED TO ADD 0.5-1.5 WT. % OF SODIUM CARBONATE, AND CALCIUM HYDROXIDE.

  • Corporate Authors:

    Vestnik Leningradskogo Universiteta

    Seriya Matematika, Mekhanika, Astronomiya
    Leningrad,   USSR 
  • Authors:
    • Samoilov, V G
  • Publication Date: 0

Language

  • English

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Filing Info

  • Accession Number: 00231604
  • Record Type: Publication
  • Source Agency: Highway Research Board Bibliography
  • Files: TRIS
  • Created Date: Aug 15 2004 2:35AM