[en] This work reports the mechanical, durability and insulating properties of novel geopolymer composites made of iron-rich laterite and sugarcane bagasse fibers with sodium silicate as a hardener. The results showed that the addition of fibers was beneficial for improving the fracture behavior of iron-rich laterite based geopolymer from brittle to ductile. The 28days compressive strength ranges from 50MPa to 14MPa with the content of fibers. The modulus of elasticity was improved by 50% with only 3wt% of fibers. The geopolymer composites perform well after 20 wet-dry cycles with the improvement of its ductility. The 28days thermal conductivity decreases from 0.77W/mK to 0.55W/mK with the fibers content.
Disciplines :
Civil engineering
Author, co-author :
Nkwaju, Rachel; MIPROMALO
Djobo, Jean Noël; MIPROMALO
Nouping, Nadia; MIPROMALO
Huisken, William; University of Douala > ENSET > Mechanical laboratory and adapted materials
Deutou, Juvenal; MIPROMALO
Courard, Luc ; Université de Liège - ULiège > Département ArGEnCo > Matériaux de construction non métalliques du génie civil
Language :
English
Title :
Iron-rich laterite-bagasse fibers based geopolymer composite: Mechanical, durability and insulating properties
Publication date :
2019
Journal title :
Applied Clay Science
ISSN :
0169-1317
eISSN :
1872-9053
Publisher :
Elsevier, Netherlands
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
SeRaMa
Funders :
ARES CCD - Académie de Recherche et d'Enseignement Supérieur. Coopération au Développement [BE]
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