Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate
The use of segmental retaining wall units as the facing column for mechanically stabilized earth (MSE) retaining walls has increased noticeably all over the world. Hollow and solid, both types of modular block units are used in dry-stacked facing columns. Nowadays, Hollow concrete units are being i...
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| Format: | Conference or Workshop Item |
| Language: | en |
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2011
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| Online Access: | http://eprints.um.edu.my/12821/1/Frictional_Behaviour_of_Segmental_Retaining.pdf http://eprints.um.edu.my/12821/ |
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| author | Bhuiyan, M.Z.I. Hj Ali, F. Salman, F.A. |
| author_facet | Bhuiyan, M.Z.I. Hj Ali, F. Salman, F.A. |
| author_sort | Bhuiyan, M.Z.I. |
| building | UM Library |
| collection | Institutional Repository |
| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | The use of segmental retaining wall units as the facing
column for mechanically stabilized earth (MSE) retaining walls has increased noticeably all over the world. Hollow and solid, both types of modular block units are used in dry-stacked facing columns. Nowadays, Hollow concrete units are being implicated frequently because of its cost- ffectiveness and other technical advantages. The cavities of hollow concrete units are filled with natural (fresh) aggregates for better shear resistance. The use of fresh aggregates as in-fillers in retaining wall constructions is
expensive and unsustainable (annihilation of natural resources). This study mainly focuses on frictional behavior of newly designed and manufactured precast "I" blocks infilled with fresh and recycled aggregates. A series of tests were performed using a specially designed & fabricated direct shear apparatus to assess the frictional behavior of infilled blocks under different normal loading conditions. The tests were executed based on the exiting ASTM and National Concrete Masonry Association (NCMA) test
protocols. Test results were outlined in the form of shear stress displacement relationship to compare the effect of recycled aggregate against the fresh aggregate. Shear capacity envelopes were also plotted using Mohr-Coulomb failure criteria to find out the angle of friction for each case. Test results revealed that the angle of friction of the blocks infilled with the recycled aggregate is almost equal to those with the fresh aggregate. |
| format | Conference or Workshop Item |
| id | my.um.eprints-12821 |
| institution | Universiti Malaya |
| language | en |
| publishDate | 2011 |
| record_format | eprints |
| spelling | my.um.eprints-128212015-02-25T01:08:35Z http://eprints.um.edu.my/12821/ Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate Bhuiyan, M.Z.I. Hj Ali, F. Salman, F.A. TA Engineering (General). Civil engineering (General) The use of segmental retaining wall units as the facing column for mechanically stabilized earth (MSE) retaining walls has increased noticeably all over the world. Hollow and solid, both types of modular block units are used in dry-stacked facing columns. Nowadays, Hollow concrete units are being implicated frequently because of its cost- ffectiveness and other technical advantages. The cavities of hollow concrete units are filled with natural (fresh) aggregates for better shear resistance. The use of fresh aggregates as in-fillers in retaining wall constructions is expensive and unsustainable (annihilation of natural resources). This study mainly focuses on frictional behavior of newly designed and manufactured precast "I" blocks infilled with fresh and recycled aggregates. A series of tests were performed using a specially designed & fabricated direct shear apparatus to assess the frictional behavior of infilled blocks under different normal loading conditions. The tests were executed based on the exiting ASTM and National Concrete Masonry Association (NCMA) test protocols. Test results were outlined in the form of shear stress displacement relationship to compare the effect of recycled aggregate against the fresh aggregate. Shear capacity envelopes were also plotted using Mohr-Coulomb failure criteria to find out the angle of friction for each case. Test results revealed that the angle of friction of the blocks infilled with the recycled aggregate is almost equal to those with the fresh aggregate. 2011-09 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.um.edu.my/12821/1/Frictional_Behaviour_of_Segmental_Retaining.pdf Bhuiyan, M.Z.I. and Hj Ali, F. and Salman, F.A. (2011) Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate. In: 2011 IEEE Symposium on Business, Engineering and Industrial Applications, 25-28 Sep 2011, Langkawi. |
| spellingShingle | TA Engineering (General). Civil engineering (General) Bhuiyan, M.Z.I. Hj Ali, F. Salman, F.A. Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title | Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title_full | Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title_fullStr | Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title_full_unstemmed | Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title_short | Frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| title_sort | frictional behaviour of segmental retaining wall units infilled with recycled concrete aggregate |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/12821/1/Frictional_Behaviour_of_Segmental_Retaining.pdf http://eprints.um.edu.my/12821/ |
| url_provider | http://eprints.um.edu.my/ |