Details
Original language | English |
---|---|
Article number | 242 |
Number of pages | 11 |
Journal | Innovative Infrastructure Solutions |
Volume | 9 |
Issue number | 7 |
Early online date | 7 Jun 2024 |
Publication status | Published - Jul 2024 |
Abstract
Owing to its availability and affordability, lateritic soils are one of common building materials widely used for the development of infrastructures in sub-tropical and tropical regions. Their engineering properties are mostly influenced by such factors including climate, vegetation, typography, and parent rock. Seeking a proper method to improve the bearing ability of lateritic soils is still of interest. The present work deals with the use of low-energy and alternative pozzolan based-geopolymer binder for the lateritic gravel’s stabilization for road construction in tropical countries. The stabilization ratio of 0 up 15 wt% were made and labelled LS0, LS5, LS10 and LS15, respectively. The synthesized products were characterized using several analytical techniques including mineralogical, geotechnical, and physical characteristics. The results revealed the efficiency of geopolymer binders to improve the load-bearing capacity of gravelly soils. Optimal characteristics are obtained with the samples made with 10 wt% of the geopolymer binder (IP ≤ 20, CBR > 164.2 and density between 1.8 and 2). This allowed us to classify LS5 as a foundation layer material for T1–T3 traffic, LS10 and LS15 for the base layer of T1–T3 traffic and a foundation layer above T3. The use of the natural pozzolan based geopolymer, subject to a durability study, appears as an eco-efficient way for the stabilization of lateritic gravel for road construction in tropical nations in the same way as hydraulic binders.
Keywords
- Geopolymer binder, Geotechnical properties, Gravelly soil, Load bearing, Road construction
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Engineering
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Engineering(all)
- Engineering (miscellaneous)
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In: Innovative Infrastructure Solutions, Vol. 9, No. 7, 242, 07.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Improvement of the bearing capacity of lateritic gravel by a geopolymer binder
T2 - road construction in tropical countries
AU - Mousi, Joseph Bikoun
AU - Kamwa, Rolande Aurelie Tchouateu
AU - Nemaleu, Juvenal Giogetti Deutou
AU - Tome, Sylvain
AU - Gérard, Martine
AU - Etoh, Marie Annie
AU - Oyong, Claudia Pamella Manou
AU - Etame, Jacques
N1 - Publisher Copyright: © Springer Nature Switzerland AG 2024.
PY - 2024/7
Y1 - 2024/7
N2 - Owing to its availability and affordability, lateritic soils are one of common building materials widely used for the development of infrastructures in sub-tropical and tropical regions. Their engineering properties are mostly influenced by such factors including climate, vegetation, typography, and parent rock. Seeking a proper method to improve the bearing ability of lateritic soils is still of interest. The present work deals with the use of low-energy and alternative pozzolan based-geopolymer binder for the lateritic gravel’s stabilization for road construction in tropical countries. The stabilization ratio of 0 up 15 wt% were made and labelled LS0, LS5, LS10 and LS15, respectively. The synthesized products were characterized using several analytical techniques including mineralogical, geotechnical, and physical characteristics. The results revealed the efficiency of geopolymer binders to improve the load-bearing capacity of gravelly soils. Optimal characteristics are obtained with the samples made with 10 wt% of the geopolymer binder (IP ≤ 20, CBR > 164.2 and density between 1.8 and 2). This allowed us to classify LS5 as a foundation layer material for T1–T3 traffic, LS10 and LS15 for the base layer of T1–T3 traffic and a foundation layer above T3. The use of the natural pozzolan based geopolymer, subject to a durability study, appears as an eco-efficient way for the stabilization of lateritic gravel for road construction in tropical nations in the same way as hydraulic binders.
AB - Owing to its availability and affordability, lateritic soils are one of common building materials widely used for the development of infrastructures in sub-tropical and tropical regions. Their engineering properties are mostly influenced by such factors including climate, vegetation, typography, and parent rock. Seeking a proper method to improve the bearing ability of lateritic soils is still of interest. The present work deals with the use of low-energy and alternative pozzolan based-geopolymer binder for the lateritic gravel’s stabilization for road construction in tropical countries. The stabilization ratio of 0 up 15 wt% were made and labelled LS0, LS5, LS10 and LS15, respectively. The synthesized products were characterized using several analytical techniques including mineralogical, geotechnical, and physical characteristics. The results revealed the efficiency of geopolymer binders to improve the load-bearing capacity of gravelly soils. Optimal characteristics are obtained with the samples made with 10 wt% of the geopolymer binder (IP ≤ 20, CBR > 164.2 and density between 1.8 and 2). This allowed us to classify LS5 as a foundation layer material for T1–T3 traffic, LS10 and LS15 for the base layer of T1–T3 traffic and a foundation layer above T3. The use of the natural pozzolan based geopolymer, subject to a durability study, appears as an eco-efficient way for the stabilization of lateritic gravel for road construction in tropical nations in the same way as hydraulic binders.
KW - Geopolymer binder
KW - Geotechnical properties
KW - Gravelly soil
KW - Load bearing
KW - Road construction
UR - http://www.scopus.com/inward/record.url?scp=85195603454&partnerID=8YFLogxK
U2 - 10.1007/s41062-024-01575-6
DO - 10.1007/s41062-024-01575-6
M3 - Article
AN - SCOPUS:85195603454
VL - 9
JO - Innovative Infrastructure Solutions
JF - Innovative Infrastructure Solutions
SN - 2364-4176
IS - 7
M1 - 242
ER -