Abstract
This paper presents results which are part of a larger study on the influence of two admixtures (methyl hydroxy ethyl cellulose, MHEC, and polyvinyl acetate, PVA) on properties of water contained in pores and capillaries of cementitious materials subjected to freezing and thawing. An attempt has been made to explain some aspects of frost deterioration based on the Everett and Hynes model of phase transition. The Differential Scanning Calorimetry technique was used to record the process of water to ice transition in cementitious composites, which were initially subjected to different curing conditions including freezing and thawing.
A study of the phase transition of water in polymer modified concrete revealed variations in the ice concentration depending upon the mix composition and number of freezing and thawing cycles. It has been found that admixtures have strong effects on the phase transition particularly after prolonged exposure to alternate freezing and thawing.
A study of the phase transition of water in polymer modified concrete revealed variations in the ice concentration depending upon the mix composition and number of freezing and thawing cycles. It has been found that admixtures have strong effects on the phase transition particularly after prolonged exposure to alternate freezing and thawing.
| Original language | English |
|---|---|
| Pages (from-to) | 199-202 |
| Journal | Building and Environment: the International Journal of Building Science and its Applications |
| Volume | 32 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - May 1997 |
Keywords
- ice formation
- polymer modified concrete
- admixtures