Hydromechanical and pore-structure evolution in lime-treated kneading compacted soil
Geo-Congress 2022, CHARLOTTE, NORTH CAROLINA, ETATS-UNIS, 20-/03/2022 - 20/03/2022
A similitude relation to assessing the compressive strength of rammed earth from scale-down samples
Rammed earth (RE) as a construction material fits perfectly into the circular economy concept as the soil is usually taken from excavation works (a waste) and is upcycled to build earthen architecture without adding any other components (unstabilised RE). RE is therefore recoverable at the building end-of-life. For non-common buildings, it is cruci...
Compressive strength and microstructure evolution of lime-treated silty soil subjected to kneading action
Long-term improvement in behaviour of soil subjected to lime treatment depends on the mechanism of its implementation. In-situ lime-treated fine-grained soil is often subjected to ?kneading action' developed by Pad-foot roller. The mechanism underlying the effect of kneading on lime-treated soil remains less investigated. Unconfined Compressive Str...
Structural health monitoring with non-linear sensor measurements robust to unknown non-stationary input forcing
Bayesian filtering based structural health monitoring algorithms typically assume stationary white Gaussian noise models to represent an unknown input forcing. However, typical structural damages occur mostly under the action of extreme loading conditions, like earthquake or high wind/waves, which are characteristically non-stationary and non-Gauss...
United void index for normalizing virgin compression of reconstituted clays
Le cadre de compression intrinsèque qui utilise l'indice des vides pour normaliser la compression vierge des argiles reconstituées a été largement appliqué à des fins académiques et pratiques. Des études antérieures ont montré que les données de l'indice des vides sont dispersées lorsque la contrainte est comprise entre 100 et 1000 kPa. Dans cette ...
Mechanical and mineralogical characteristics of mortars with crushed and river sand
The 13th fib International PhD-Symposium in Civil Engineering , Marne-la-Vallée, FRANCE, 26-/08/2020 - 28/08/2020
Study on the Microstructure of the New Paste of Recycled Aggregate Self-Compacting Concrete
Published in Materials
Previous literature indicates a decrease in the mechanical properties of various concrete types that contain recycled aggregates (RA), due to their porosity and to their interface of transition zone (ITZ). However, other components of the RA concrete microstructure have not yet been explored, such as the modification of the new paste (NP) with resp...
Damage Detection in Tensegrity using Interacting Particle-Ensemble Kalman Filter
Tensegrity structures form a special class of truss with dedicated cables and bars, that take tension and compression, respectively. To ensure equilibrium, the tensegrity members are required to be prestressed. Over prolonged usage, the cables may lose their prestress while bars may buckle, affecting the structural stiffness as well as its dynamic ...
Mechanical and mineralogical characteristics of mortars with crushed and river sand
The aim of this study is to characterize the mixtures of crushed sand and river sand for an optimal use in the formulation of mortars and concretes. Physical, chemical and mineralogical characterization of aggregates was done, followed by the formulation of mortars by substituting 100%, 50% and 0% of river sand by crushed sand. The compressive stre...
High performance illitic clay-based geopolymer : Influence of the mechanochemical activation duration on the strength de...
Demonstrate the feasibility of an illitic clay-based geopolymer is the purpose of this study. If the thermal activation of standard precursors such as kaolin is a well-known process, the reactivity of illitic precursors required the combination of thermal and mechanochemical activation. The structural changes of the precursor material submitted to ...
