STABILIZATION WITH CEMENT AFTER PREGRANULATION WITH LIME. STABILIZATION OF WET COHESIVE SOIL WITH LIME. V. 3

STABILISATION AU CIMENT APRES PREGRANULATION A LA CHAUX. TRAITEMENT DES SOLS COHESIFS HUMIDES PAR LA CHAUX. V.3

The stabilization of cohesive soil with lime gives the soil greater workability, thanks to granulation and because of this, the incorporation of a proportion of cement in this soil previously stabilized with lime is made easier. It seems therefore possible, thanks to pregranulation with lime, to extend stabilization with cement to soils more cohesive than those presently stabilized. The effects of pregranulation on different aspects of cement stabilization were studied from the point of view of aptitude to compaction, bearing capacity (CBR), uniaxial and diametrical compressive strength, and durability. On the whole the influence of pregranulation is slightly to highly favourable except in the case of soil containing organic matter and as regards the stability of mixtures where the soil is stabilized with silt in the presence of freezing-thawing cycles. The study of various variables (dry bulk density, moisture content, proportions of lime and cement, type of lime and cement, time between addition of lime and that of cement and between addition of cement and compaction) on the strength obtained has shown the important role of the moisture content at compaction stage that, in some cases, can be responsible for the unexpected behaviour of soil-cement mixtures. On the whole, cement pregranulation, particularly if drying due to lime stabilization is taken into account, leads to a marked improvement in the stabilization of cohesive soil with cement and widens the range of soils able to be stabilized with cement.

  • Corporate Authors:

    Road Research Centre, Belgium

    Boulevard de la Woluwe 42
    B-1200 Brussels,   Belgium 
  • Authors:
    • VERHASSELT, A
  • Publication Date: 1978

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 95 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00314740
  • Record Type: Publication
  • Source Agency: Centre de Recherches Routieres (CRR)
  • Report/Paper Numbers: Rap Rech 178/VA1978 Monograph
  • Files: ITRD, TRIS
  • Created Date: Oct 27 1980 12:00AM