Evaluation of recycled concrete aggregate backfill for geosynthetic-reinforced MSE walls-Reference-Cited by-同舟云学术

Evaluation of recycled concrete aggregate backfill for geosynthetic-reinforced MSE walls

Published:2019-08 Issue:4 Volume:26 Page:396-412
ISSN:1072-6349
Container-title:Geosynthetics International
language:en
Short-container-title:Geosynthetics International

Author:

Soleimanbeigi A.¹,Tanyu B. F.²,Aydilek A. H.³,Florio P.⁴,Abbaspour A.⁵,Dayioglu A. Y.⁶,Likos W. J.⁷

Affiliation:

1. Research Scientist, Department of Civil and Environmental Engineering University of Wisconsin, Madison, Wisconsin, USA,

2. Associate Professor, Department of Geotechnical and Geological Engineering, George Mason University, USA,

3. Professor, Department of Civil and Environmental Engineering, University of Maryland, College Park, USA,(corresponding author)

4. Geotechnical Engineer, AECOM, Middleton, WI, USA,

5. Geotechnical Engineer, ECS Ltd., Chantilly, VA, USA,

6. Assistant Professor, Department of Civil Engineering, Istanbul Technical University, Istanbul, Turkey,

7. Gary Wendt Professor, Department of Civil and Environmental Engineering, University of Wisconsin, Madison, Wisconsin, USA,

Abstract

Mechanical and hydraulic properties of recycled concrete aggregate (RCA) were evaluated for use as backfill in mechanically stabilized earth (MSE) walls. Large-scale drained triaxial tests, direct shear tests and pullout tests were performed to obtain mechanical properties of RCA interacting with various geosynthetics. Long-term filtration (LTF) tests were performed to evaluate hydraulic conductivity of RCA-geotextile systems. Results showed that the RCA had an internal friction angle of 49°, which was within the typical range. The RCA-uniaxial geogrid had the highest interface friction angle of 36° – and the interface friction angles of RCA-biaxial geogrid, RCA-nonwoven geotextile, and RCA-woven geotextile were 32°, 26° and 22°, respectively. Reinforced RCA showed comparable pullout capacity to reinforced sand. No slippage was observed between the RCA and geotextiles or geogrids, and the failures occurred mainly due to rupture of the geotextiles and geogrids during the pullout test. Results of the LTF tests showed that, over a filtration period of 2500 h, the ratio of mean hydraulic conductivity of RCA only to that of RCA-nonwoven geotextile and RCA-woven geotextile systems remained between 0.91 and 3.2, suggesting that the clogging of the geotextiles with RCA was minimal.

Publisher

Thomas Telford Ltd.

Subject

Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jgein.19.00025

Reference83 articles.

1. Methodology to evaluate hydraulic compatibility of geotextile and RCA in underdrain systems

2. Acid Treatment Technique for Determining the Mortar Content of Recycled Concrete Aggregates

3. Stormwater solids removal characteristics of a catch basin insert using geotextile

4. Interface Shear Strength Testing of Geogrid-Reinforced Construction and Demolition Materials

Cited by 21 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Comparative Evaluation of the Long-Term Filtration Performance of Recycled Materials in Highway Drainage Systems;Geotechnical Testing Journal;2023-10-13

2. Prediction of non-woven geotextiles’ reduction factors for damage caused by the drop of backfill materials;Geotextiles and Geomembranes;2023-10

3. Characterization of MSW incineration bottom ash for use as structural fill in reinforced soil structures: Geoenvironmental, geotechnical and economical assessment;Waste Management;2023-08

4. Effect of fabric structure on in-plane and through-plane hydraulic properties of nonwoven geotextiles;Geotextiles and Geomembranes;2023-08

5. Mechanical damage of geotextiles induced by recycled construction and demolition waste;Environmental Geotechnics;2023-06-27