Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pullout behaviour of polymeric strips embedded in mixed recycled aggregate (MRA) from construction & demolition (C&D) waste – Effect of type of fill and compaction
https://orcid.org/0000-0002-2627-2325
Abstract Recycling and reusing construction and demolition (C&D) waste is the pressing priority, and the use of such non – conventional structural fill in reinforced soil structures (RSS) is gaining momentum. However, the utilisation of mixed recycled aggregate (MRA) from processed C&D waste as structural fill with polymeric strips (PS) and the effect of poorly compacted structural fill on the pullout interaction is not reported. This research presents the viability of using MRA as a structural fill for reinforced soil structures, appraising the physical, mechanical and electrochemical properties of MRA and the pullout behaviour of polymeric strips embedded in MRA at different relative densities in a large-scale pullout box. The results for MRA were compared with those obtained using locally available coarse and fine sands. The test results showed that MRA was alkaline (pH < 9) and had good mechanical properties and shear strength suitable for reinforced soil structures. Pullout testing results exhibited high values of the interface apparent coefficient of friction (μS/GSY) under dense conditions and a 70–80% reduction in loose conditions. The present study reinforces the viability of using MRA as an alternative structural fill with PS and highlights the effect of construction variability on μS/GSY.
Highlights The first study on pullout behaviour of polymeric strip (PS) embedded in MRA as structural fill for RSS. Study to reflect the effect of compaction of structural fill on strip reinforcement. Characterization of MRA was carried out for two C&D waste plants located in Delhi to assess its viability as fill. The peak pullout of PS embedded in MRA was studied and compared with the conventional fill reported in the literature. MRA from C&D waste was found to be suitable as structural fill for RSS.
Pullout behaviour of polymeric strips embedded in mixed recycled aggregate (MRA) from construction & demolition (C&D) waste – Effect of type of fill and compaction
https://orcid.org/0000-0002-2627-2325
Abstract Recycling and reusing construction and demolition (C&D) waste is the pressing priority, and the use of such non – conventional structural fill in reinforced soil structures (RSS) is gaining momentum. However, the utilisation of mixed recycled aggregate (MRA) from processed C&D waste as structural fill with polymeric strips (PS) and the effect of poorly compacted structural fill on the pullout interaction is not reported. This research presents the viability of using MRA as a structural fill for reinforced soil structures, appraising the physical, mechanical and electrochemical properties of MRA and the pullout behaviour of polymeric strips embedded in MRA at different relative densities in a large-scale pullout box. The results for MRA were compared with those obtained using locally available coarse and fine sands. The test results showed that MRA was alkaline (pH < 9) and had good mechanical properties and shear strength suitable for reinforced soil structures. Pullout testing results exhibited high values of the interface apparent coefficient of friction (μS/GSY) under dense conditions and a 70–80% reduction in loose conditions. The present study reinforces the viability of using MRA as an alternative structural fill with PS and highlights the effect of construction variability on μS/GSY.
Highlights The first study on pullout behaviour of polymeric strip (PS) embedded in MRA as structural fill for RSS. Study to reflect the effect of compaction of structural fill on strip reinforcement. Characterization of MRA was carried out for two C&D waste plants located in Delhi to assess its viability as fill. The peak pullout of PS embedded in MRA was studied and compared with the conventional fill reported in the literature. MRA from C&D waste was found to be suitable as structural fill for RSS.
Pullout behaviour of polymeric strips embedded in mixed recycled aggregate (MRA) from construction & demolition (C&D) waste – Effect of type of fill and compaction
https://orcid.org/0000-0002-2627-2325
Abstract Recycling and reusing construction and demolition (C&D) waste is the pressing priority, and the use of such non – conventional structural fill in reinforced soil structures (RSS) is gaining momentum. However, the utilisation of mixed recycled aggregate (MRA) from processed C&D waste as structural fill with polymeric strips (PS) and the effect of poorly compacted structural fill on the pullout interaction is not reported. This research presents the viability of using MRA as a structural fill for reinforced soil structures, appraising the physical, mechanical and electrochemical properties of MRA and the pullout behaviour of polymeric strips embedded in MRA at different relative densities in a large-scale pullout box. The results for MRA were compared with those obtained using locally available coarse and fine sands. The test results showed that MRA was alkaline (pH < 9) and had good mechanical properties and shear strength suitable for reinforced soil structures. Pullout testing results exhibited high values of the interface apparent coefficient of friction (μS/GSY) under dense conditions and a 70–80% reduction in loose conditions. The present study reinforces the viability of using MRA as an alternative structural fill with PS and highlights the effect of construction variability on μS/GSY.
Highlights The first study on pullout behaviour of polymeric strip (PS) embedded in MRA as structural fill for RSS. Study to reflect the effect of compaction of structural fill on strip reinforcement. Characterization of MRA was carried out for two C&D waste plants located in Delhi to assess its viability as fill. The peak pullout of PS embedded in MRA was studied and compared with the conventional fill reported in the literature. MRA from C&D waste was found to be suitable as structural fill for RSS.
Pullout behaviour of polymeric strips embedded in mixed recycled aggregate (MRA) from construction & demolition (C&D) waste – Effect of type of fill and compaction
Agarwal, Apoorva (Autor:in) / Ramana, G.V. (Autor:in) / Datta, Manoj (Autor:in) / Soni, Narendra Kumar (Autor:in) / Satyakam, Rajiv (Autor:in)
Geotextiles and Geomembranes ; 51 ; 405-417
24.01.2023
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Production of Recycled Aggregate Concrete Using Construction and Demolition Waste
| Springer Verlag | 2021