INFLUENCE OF CALCIUM CHLORIDE ON THE DRYING SHRINKAGE OF ALITE PASTE

The drying shrinkage at 55% relative humidity of alite pastes with and without 1% calcium chloride (CaCl2) at equal degrees of hydration was investigated. CaCl2, increases drying shrinkage at all levels of hydration studied. However, the difference in drying shrinkage of pastes with and without 1% CaCl2, decreased with increased hydration. Shrinkage of pastes with CaCl2, decreased with increasing hydration (40 to 75%), whereas shrinkage of pastes without CaC;2, increased with increasing hydration (43 to 62%). A larger weight loss during drying was noted in pastes without CaCl2. Reference is made to the relationship between the observed shrinkage in alite pastes and differences in the pore size distributions of tricalcium silicate pastes with and without CaCl2. /Author/

  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  USA  19428-2957
  • Authors:
    • Berger, R L
    • Kung, J H
    • Young, J F
  • Publication Date: 1976-1

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Filing Info

  • Accession Number: 00129509
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM