Lightweight fill can be advantageous in embankment construction for the purposes of reducing (i) bearing pressures on underlying soil foundation, (ii) destabilizing moments constructed earthen slopes, and (iii) earth acting behind retaining walls. This paper investigates merits/limitations particulate expanded polystyrene (EPS) beads mixed with clayey sand (CS) as lightweight fill, considering ...

Deep and high-stress mining results in stress transfers onto the previously placed backfill, mines have recorded several MPa induced backfill stresses. Understanding backfill-rock mass interaction is therefore critical. Previous work considered tabular ore bodies undergoing primarily one-dimensional compression showed how reaction curves could be estimated from oedometer laboratory test results...

Smectite-rich clay is a major engineered barrier (buffer) in repositories for heat-producing highly radioactive waste. It has the form of densely compacted blocks of clay granules and is only partly water saturated from start. The initial porewater is redistributed by the thermal gradient acting in the buffer and additional water is taken up to give ultimately complete saturation. The compactio...

The effect of biodegradation on the consolidation characteristics of an anaerobically digested, dewatered municipal sewage sludge was studied. Maintained-load oedometer consolidation tests that included measurement of the pore fluid pressure response were conducted on moderately degraded sludge material and saturated bulk samples that had been stored under static conditions and allowed to anaer...

Progressively, more dredged sediments are being reused for engineering projects. For example, the Marker Wadden is a new wetland constructed in lake Markermeer, Netherlands, with cohesive originating from bed of lake. Such often dominated by sediment particles varying amounts sand and organic matter. In addition, during after construction process, material consolidates compressed very loose sta...

ABSTRACT: In this paper, a simple mathematical model is proposed to predict the swelling behavior of an expansive soil from Saudi Arabia. The model consists of one equation with many parameters. The main advantage of this model is that only one parameter is needed to run the model. While the other model parameters can be determined using the best fitting curve technique. The testing program inc...

Abstract This paper focuses on the physicochemical changes that happen in cold mix asphalts during curing, and more specifically, while after transitioning to different simulated seasons. Several tests were carried out order better grasp influence of weather (temperature humidity) curing such materials. The mechanical behaviour was assessed using oedometer tests. evolutions extracted binders, a...