EFFECT OF WATER SORPTION ON THE DYNAMIC MODULUS OF ELASTICITY OF DESICCATED CONCRETE MATERIALS

The effects of desorption and water sorption on the dynamic modulus of concrete, mortars and hardened portland cement paste are investigated. Desiccation of the latter results in a significant reduction in the dynamic modulus. Cyclic drying and wetting of the concrete system further decreases the modulus value. Shrinkage induced microcracking is proposed as the major mechanism of the modulus variation. It is concluded that the first drying of the concrete system results in some irreversible changes in the structure of the hardened cement paste. (A) /TRRL/

  • Availability:
  • Corporate Authors:

    University of New South Wales

    School of Civil Engineering, Anzac Parade
    Kensington, New South Wales  Australia  2033
  • Authors:
    • Haque, M N
    • COOK, D J
  • Publication Date: 1976-5

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 12 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00165715
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0 85841 118 0
  • Report/Paper Numbers: Uniciv Report No 155Monog Ser
  • Files: ITRD, TRIS
  • Created Date: May 18 1978 12:00AM