The Significance of Critical Degrees of Saturation at Freezing of Porous and Brittle Materials

• "The paper treats the problem of frost resistance as a general problem for all porous materials. The difference between the new way of defining critical degree of saturation (as a materials constant) and the usual way (as functions of a combination of properties of material and environment) is discussed. Possible definitions of moisture conditions are provided. By comparison of the critical degree of saturation and the actual reached in practise the frost resistance can be expressed by a plain figure which makes a rational choice of material possible. The method is exemplified. On basis of the hydraulic pressure theory connections between materials properties and critical degree of saturation are derived. (29 refs.)"

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

Keyword

porosity

pore water pressure

Poisson's ratio

permeability

moisture content

modulus of elasticity

mix proportioning

ice formation

freezing

freeze-thaw durability

deicers

air entraintment

concretes

temperature

water

Publication and Content Type

kon (subject category)

ref (subject category)