Some aspect of swelling and shrinking behaviour of active clay formations

Engineering problems associated with active clay formations, having a large swelling and shrinking potential,

are existing in different regions of Romania.

ln the general framework of the active clays behaviour, the present paper describes some particular aspects of swelling

and shrinkage processes.

The differences between swelling potential relationship obtained by two different methods are presented and discussed.

 

Engineering problems associated with active clay formations, having a large swelling and shrinking potential,

are existing in different regions of Romania.

ln the general framework of the active clays behaviour, the present paper describes some particular aspects of swelling

and shrinkage processes.

The differences between swelling potential relationship obtained by two different methods are presented and discussed.

 

Swelling pressure tests were accomplished using the available standard techniques, as well a special developed cell pres-

sure equipment.

Attention is drawn on the stages of shrinkage process as related to the soil structure. lt was found that, in a general case,

there are three distinct stages: initial, normal and residual shrinkage.

Laboratory investigations have shown that in soils with an anisotropic structure, the directional variation of shrinkage

strains is elliptical in shape, with the inaxirnurn shrinkage normal to particle orientation.


Engineering pro …


AUTORI: Popescu M.E.
RIG ANNO:1976 NUMERO:4
Numero di pagine: 221


Allegato: https://associazionegeotecnica.it/wp-content/uploads/2011/02/rig_1977_4_221.pdf
Allegato:
Articolo completo: https://associazionegeotecnica.it/wp-content/uploads/2011/02/rig_1977_4_221.pdf