Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Performance Evaluation of Geogrid Reinforced Recycled Marginal Backfill Materials in Triaxial Test Conditions
https://orcid.org/http://orcid.org/0000-0003-1356-473X
The utilization of industrial and construction wastes has become necessary to avoid over-exploitation of natural resources. Steel slag and construction and demolition wastes (CDW) are two such materials explored in the present study for possible geotechnical applications. The performance of the waste materials has been compared to that of conventional fill material sand. A series of static triaxial tests were performed on unreinforced as well as geogrid reinforced dense specimens by applying different confining pressures. The stress–strain response, stiffness, particle breakage and energy absorption capacity of the materials were assessed. Slag exhibited the highest shear strength of all materials. On the other hand, CDW was found to sustain larger strain at failure. Inclusion of geogrid significantly enhanced the apparent cohesion, peak strength, axial strain at failure and the energy absorbing capacity of the materials. However, marginal change in friction angle was obtained. The particle breakage measurements revealed negligible breakage in slag and CDW materials. The triaxial stress–strain response of the materials was further used to back-calculate plastic hardening model parameters. The derived model parameters resulted in fairly accurate estimation of stress–strain response upon its implementation in finite difference package FLAC2D.
Performance Evaluation of Geogrid Reinforced Recycled Marginal Backfill Materials in Triaxial Test Conditions
https://orcid.org/http://orcid.org/0000-0003-1356-473X
The utilization of industrial and construction wastes has become necessary to avoid over-exploitation of natural resources. Steel slag and construction and demolition wastes (CDW) are two such materials explored in the present study for possible geotechnical applications. The performance of the waste materials has been compared to that of conventional fill material sand. A series of static triaxial tests were performed on unreinforced as well as geogrid reinforced dense specimens by applying different confining pressures. The stress–strain response, stiffness, particle breakage and energy absorption capacity of the materials were assessed. Slag exhibited the highest shear strength of all materials. On the other hand, CDW was found to sustain larger strain at failure. Inclusion of geogrid significantly enhanced the apparent cohesion, peak strength, axial strain at failure and the energy absorbing capacity of the materials. However, marginal change in friction angle was obtained. The particle breakage measurements revealed negligible breakage in slag and CDW materials. The triaxial stress–strain response of the materials was further used to back-calculate plastic hardening model parameters. The derived model parameters resulted in fairly accurate estimation of stress–strain response upon its implementation in finite difference package FLAC2D.
Performance Evaluation of Geogrid Reinforced Recycled Marginal Backfill Materials in Triaxial Test Conditions
https://orcid.org/http://orcid.org/0000-0003-1356-473X
The utilization of industrial and construction wastes has become necessary to avoid over-exploitation of natural resources. Steel slag and construction and demolition wastes (CDW) are two such materials explored in the present study for possible geotechnical applications. The performance of the waste materials has been compared to that of conventional fill material sand. A series of static triaxial tests were performed on unreinforced as well as geogrid reinforced dense specimens by applying different confining pressures. The stress–strain response, stiffness, particle breakage and energy absorption capacity of the materials were assessed. Slag exhibited the highest shear strength of all materials. On the other hand, CDW was found to sustain larger strain at failure. Inclusion of geogrid significantly enhanced the apparent cohesion, peak strength, axial strain at failure and the energy absorbing capacity of the materials. However, marginal change in friction angle was obtained. The particle breakage measurements revealed negligible breakage in slag and CDW materials. The triaxial stress–strain response of the materials was further used to back-calculate plastic hardening model parameters. The derived model parameters resulted in fairly accurate estimation of stress–strain response upon its implementation in finite difference package FLAC2D.
Performance Evaluation of Geogrid Reinforced Recycled Marginal Backfill Materials in Triaxial Test Conditions
Int. J. of Geosynth. and Ground Eng.
Sarkar, S. (Autor:in) / Hegde, A. (Autor:in)
01.08.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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