Characterization of tunnel excavated earth-based mortars for rammed earth repair
The aim of this work is to study the possibility to reuse the tunnel excavated earth in order to elaborate earth-based mortar for rammed earth reparation. The tunnel excavated earth-based mortars were compared with raw earth based-mortars, largely used in practice. The cement was used as stabilizer...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/20/e3sconf_evf2021_01001.pdf |
| _version_ | 1818218157482967040 |
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| author | Ghorbel Elhem Nouali Mohammed |
| author_facet | Ghorbel Elhem Nouali Mohammed |
| author_sort | Ghorbel Elhem |
| collection | DOAJ |
| description | The aim of this work is to study the possibility to reuse the tunnel excavated earth in order to elaborate earth-based mortar for rammed earth reparation. The tunnel excavated earth-based mortars were compared with raw earth based-mortars, largely used in practice. The cement was used as stabilizer and the hemp fibers were used to diminish the cracking due to shrinkage. The mechanical, thermal and hydric properties of mortars were characterized after 28 days. The mortars were maintained in hydrothermal chamber at controlled conditions, 20 ± 2 °C and 50 ± 5 HR. The obtained results show that the mechanical performances increase with the increase of cement by earth ratio. While, the increase of cement content affects negatively the thermal conductivity of earth-based mortars. Whereas, the thermal properties were improved with the addition of natural fiber. The excavated earth-based mortars show higher mechanical performances and good thermal properties compared to raw earth-based mortars. |
| first_indexed | 2024-12-12T07:19:18Z |
| format | Article |
| id | doaj.art-14ad18854de64a96b65a0293c0ffff4e |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-12T07:19:18Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-14ad18854de64a96b65a0293c0ffff4e2022-12-22T00:33:26ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013530100110.1051/e3sconf/202235301001e3sconf_evf2021_01001Characterization of tunnel excavated earth-based mortars for rammed earth repairGhorbel Elhem0Nouali Mohammed1Laboratoire de mécanique et matériaux du génie civil (L2MGC), CY Cergy Paris Université (EA4114)Laboratoire de mécanique et matériaux du génie civil (L2MGC), CY Cergy Paris Université (EA4114)The aim of this work is to study the possibility to reuse the tunnel excavated earth in order to elaborate earth-based mortar for rammed earth reparation. The tunnel excavated earth-based mortars were compared with raw earth based-mortars, largely used in practice. The cement was used as stabilizer and the hemp fibers were used to diminish the cracking due to shrinkage. The mechanical, thermal and hydric properties of mortars were characterized after 28 days. The mortars were maintained in hydrothermal chamber at controlled conditions, 20 ± 2 °C and 50 ± 5 HR. The obtained results show that the mechanical performances increase with the increase of cement by earth ratio. While, the increase of cement content affects negatively the thermal conductivity of earth-based mortars. Whereas, the thermal properties were improved with the addition of natural fiber. The excavated earth-based mortars show higher mechanical performances and good thermal properties compared to raw earth-based mortars.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/20/e3sconf_evf2021_01001.pdf |
| spellingShingle | Ghorbel Elhem Nouali Mohammed Characterization of tunnel excavated earth-based mortars for rammed earth repair E3S Web of Conferences |
| title | Characterization of tunnel excavated earth-based mortars for rammed earth repair |
| title_full | Characterization of tunnel excavated earth-based mortars for rammed earth repair |
| title_fullStr | Characterization of tunnel excavated earth-based mortars for rammed earth repair |
| title_full_unstemmed | Characterization of tunnel excavated earth-based mortars for rammed earth repair |
| title_short | Characterization of tunnel excavated earth-based mortars for rammed earth repair |
| title_sort | characterization of tunnel excavated earth based mortars for rammed earth repair |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/20/e3sconf_evf2021_01001.pdf |
| work_keys_str_mv | AT ghorbelelhem characterizationoftunnelexcavatedearthbasedmortarsforrammedearthrepair AT noualimohammed characterizationoftunnelexcavatedearthbasedmortarsforrammedearthrepair |