Influence of firing conditions on ceramic products: Experimental study on clay rich in organic matter

Recognition of trigger mechanisms for soft-sediment deformation in the Pleistocene lacustrine deposits of the SantʻArcangelo Basin (Southern Italy): Seismic shock vs. overloading

The objective of this work is to evaluate the effect of rice husk biochar (RHB) and coal fly ash (CAF) on the formation and stability of aggregates, pore size distribution, water retention, swell–shrinkage, consistency limit, and tensile strength of an expansive clayey soil (Vertisol). For this purpose, RHB and CAF are added to the clayey soil at four levels of 0, 2, 4, and 6% by weight, and incubated for 180 days in a glasshouse. Results indicate that the RHB significantly increases macroaggregates with a diameter larger than 0.25 mm and reduces microaggregates with a diameter of

Effect of rice husk biochar and coal fly ash on some physical properties of expansive clayey soil (Vertisol)

Expansive soils are problematic due to the performances of their clay mineral constituent, which makes them exhibit the shrink-swell characteristics. The shrink-swell behaviours make expansive soils inappropriate for direct engineering application in their natural form. In an attempt to make them more feasible for construction purposes, numerous materials and techniques have been used to stabilise the soil. In this study, the additives and techniques applied for stabilising expansive soils will be focused on, with respect to their efficiency in improving the engineering properties of the soils. Then we discussed the microstructural interaction, chemical process, economic implication, nanotechnology application, as well as waste reuse and sustainability. Some issues regarding the effective application of the emerging trends in expansive soil stabilisation were presented with three categories, namely geoenvironmental, standardisation and optimisation issues. Techniques like predictive modelling and exploring methods such as reliability-based design optimisation, response surface methodology, dimensional analysis, and artificial intelligence technology were also proposed in order to ensure that expansive soil stabilisation is efficient.

Emerging trends in expansive soil stabilisation: A review

Measuring the plasticity of clays: A review

Effects of organic matter on the physical and the physicochemical properties of an illitic soil

In order to delineate the significant variables affecting the ultimate uplift shaft resistance of a pile in dry sand, a testing program comprising 64 pullout tests was conducted on open- and closed...

Tension tests on smooth and rough model piles in dry sand

Modelling load–displacement response of driven piles in cohesionless soils under tensile loading

A simplified analytical formulation is presented for the mechanism by which micropiles surrounded by compacted sand control the upward movement of lightweight buildings over expansive soils. This formulation identifies the significant variables influencing the performance of micropile reinforcement. A design methodology for micropile reinforcement utilizing the resulting formulation is proposed and illustrated by a hypothetical example.

Ahmed Shlash Alawneh

Papers

Effects of organic matter on the physical and the physicochemical properties of an illitic soil

Tension tests on smooth and rough model piles in dry sand

Modelling load–displacement response of driven piles in cohesionless soils under tensile loading

Micropile technique to control upward movement of lightweight structures over expansive soils

Enhancement of the Strength and Swelling Characteristics of Expansive Clayey Soil Using Nano-Clay Material