A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mean Field Approaches for the Homogenization of Elastic Parameters of Lightweight Cemented Soils
In the field of cement treated soils, the use of Lightweight Cemented Soils (LWCS) i.e., materials that are obtained by mixing air foam with natural soil, water and cement, is of increasing interest. In the paper, the derivation of stiffness modulus of LWCS through a micromechanical approach has been performed. Analytical formulae based on the Mean-Field Eshelby-based Homogenization schemes have been implemented to determine the elastic properties of the homogenized material by taking into account its heterogeneity. The application of Mean Field Approaches requires several input parameters, in particular the foam-induced artificial porosity for LWCS samples, the bulk and shear moduli and Poisson’s ratio for cement-treated samples. The artificial porosity has been evaluated by means of X-Ray micro-CT scans, whereas the bulk modulus of the cemented matrix has been derived by experimental results. The homogenized stiffness moduli, computed for different curing times, are in good agreement with those obtained from experimental results. The proposed model predicts with good accuracy the elastic behaviour of the material.
Mean Field Approaches for the Homogenization of Elastic Parameters of Lightweight Cemented Soils
In the field of cement treated soils, the use of Lightweight Cemented Soils (LWCS) i.e., materials that are obtained by mixing air foam with natural soil, water and cement, is of increasing interest. In the paper, the derivation of stiffness modulus of LWCS through a micromechanical approach has been performed. Analytical formulae based on the Mean-Field Eshelby-based Homogenization schemes have been implemented to determine the elastic properties of the homogenized material by taking into account its heterogeneity. The application of Mean Field Approaches requires several input parameters, in particular the foam-induced artificial porosity for LWCS samples, the bulk and shear moduli and Poisson’s ratio for cement-treated samples. The artificial porosity has been evaluated by means of X-Ray micro-CT scans, whereas the bulk modulus of the cemented matrix has been derived by experimental results. The homogenized stiffness moduli, computed for different curing times, are in good agreement with those obtained from experimental results. The proposed model predicts with good accuracy the elastic behaviour of the material.
Mean Field Approaches for the Homogenization of Elastic Parameters of Lightweight Cemented Soils
Springer Ser.Geomech.,Geoengineer.
Ferrari, Alessio (editor) / Rosone, Marco (editor) / Ziccarelli, Maurizio (editor) / Gottardi, Guido (editor) / Perrotta, Laura (author) / Vitale, Enza (author) / Russo, Giacomo (author)
National Conference of the Researchers of Geotechnical Engineering ; 2023 ; Palermo, Italy
Geotechnical Engineering in the Digital and Technological Innovation Era ; Chapter: 44 ; 359-364
2023-06-17
6 pages
Article/Chapter (Book)
Electronic Resource
English
Chemo-mechanical behaviour of lightweight cemented soils
| Springer Verlag | 2020
Chemo-mechanical behaviour of lightweight cemented soils
| Online Contents | 2019
Lightweight Cemented Soils: Mix Design, Production and Control
| Springer Verlag | 2019
Elastic waves in salt-cemented granular soils
| British Library Conference Proceedings | 2010
Compressibility of lightweight cemented clays
| British Library Online Contents | 2013