Search results for "Atterberg limits"

showing 2 items of 2 documents

Geomaterials in green building practices: comparative characterization of commercially available clay-based plasters

2013

Three pre-mixed powdered clay-based (earthen) plasters produced in Europe and specifically designed for wall undercoating were analyzed in this paper. These materials are commercially available and successfully employed in green building practices all over the world. Their compositional and textural characteristics, as well as plastic behaviour were investigated through a multi-analytical approach: X-ray powder diffraction (XRPD), polarized light microscopy (PLM), X-ray fluorescence spectrometry (XRFS), scanning electron microscopy equipped with an energy dispersive spectrometer (SEM-EDS), mercury intrusion porosimetry (MIP), grain-size distribution (GSD) and semi-empirical tests (Atterberg…

Energy Dispersive SpectrometerEarth building materialGlobal and Planetary ChangePolarized light microscopyFluorescence spectrometrySoil ScienceMineralogyGeologyClay-based plasterCompositional and textural characterizationAtterberg limitsRaw materialPollutionEarthen plasterCharacterization (materials science)Green buildingearth plaster geomaterialsGeomaterialgeomaterialsTerra rossaearth plasterEnvironmental ChemistrySettore GEO/09 -Georis. Miner.e Appl.Mineral.-Petrogr. per l'Ambi.ed i B.Cult.Earth-Surface ProcessesWater Science and Technology
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Influence of Bacteria <i>Pseudomonas fluorescens</i> on the Properties of Latvian Clay

2014

Wide varieties of bacteria are able to produce extracellular polymeric substances (EPS) which are mostly composed of polysaccharides. It is suggested that EPS substances can alter certain clay soil properties due to their ability to adhere to the surface of mineral particles. Most common used microorganisms by the researchers for this purpose are of either genus Bacillus or genus Pseudomonas. In this study growth of bacteria P. fluorescens AM PS11 culture in locally obtained clay is studied for the purpose of establishing their influence on rheological properties of clay. An attempt to evaluate it has been made using FT-IR and XRD. Change in plasticity of clay using Atterberg limits method …

chemistry.chemical_classificationMaterials sciencebiologyMechanical EngineeringMicroorganismPseudomonas fluorescensAtterberg limitsGenus PseudomonasPolysaccharidebiology.organism_classificationcomplex mixturesExtracellular polymeric substanceRheologychemistryMechanics of MaterialsGeneral Materials ScienceFood scienceBacteriaKey Engineering Materials
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