(28K) ABSTRACT: In the last few years, stabilisation of pavement materials has become one of the most common methods of pavement rehabilitation. To this effect, pozzolans (such as lime and cement) have been used to enhance the engineering properties of the pavement materials. Also, ground granulated blast furnace slag (GGBFS or Slag), alkali activated slag (eg. […]

(505K) ABSTRACT: This paper looks at the new method of monitoring the effectiveness of vertical moisture barriers based on the ARRB Walking Profiler. It was found to be an accurate, relatively rapid and cost effective means of monitoring the performance of vertical moisture barriers, which are used alongside pavements to minimise the damaging effects of expansive […]

(194K) ABSTRACT: Vertical moisture barriers are used to minimise the differential movement of pavements on expansive soil subgrades. This paper discusses two types of barrier: (1) the geomembrane barrier, developed for alluvial expansive soils, and (2) the lime and fly ash grout curtain, for residual expansive soils.