STABILIZATION OF MATERIALS WITH LOW MECHANICAL PROPERTIES FOR USE IN PAVEMENT LAYERS

TRAITEMENT DES MATERIAUX A FAIBLES CARACTERISTIQUES MECANIQUES POUR EMPLOI EN COUCHES DE CHAUSSEES

THE AIM OF THE RESEARCH IS TO DEVELOP TECHNIQUES OF STABILIZING LOW-QUALITY GRAVEL WITH HYDRAULIC BINDERS SO THAT IT CAN BE USED: IN THE SUBBASES OF HEAVILY-TRAFFICKED ROADS; IN THE ROADBASES OF ROADS BEARING A MODERATE AMOUNT OF TRAFFIC. LABORATORY STUDIES OF THE STABILIZATION OF SOFT GRAVEL-LIMESTONE AND GRAVEL WITH A LOW SAND EQUIVALENT ARE COMPLETED. OBSERVATIONS AND A FOLLOW-UP STUDY OF CONTAMINATED GRAVEL-LIMESTONE (GROUINE) STABILIZED WITH CEMENT WERE CONDUCTED. IN 1979 IT IS PLANNED TO STUDY THE STABLIZATION OF CLAYEY GRAVEL WITH LIME AND WITH A LIME-CEMENT MIXTURE.