Study of the Implementation of Fibrous Materials and Earth in Hollow Body Slab in Reinforced Concrete: Case of Laterite, Borassus aethiopum and Calamus deerratus Woods

Yémalin Daniel Agossou,Edmond Codjo Adjovi,Edem Chabi,S Armel Amadji,Thomas Dekandji Ekpo,Abdelouahab Khelil,Rémi Boissiere

doi:10.1007/s12649-021-01510-1

Abstract

This work enrolls in the context of eco materials. It concerns the field of transformation of local shrub forest resources and lateritic earth with low market values into building materials and is developing a process for the valorization of lateritic nodules, Borassus aethiopum (palmyra) and Calamus deerratus (rattan) in the engineering of modern reinforced concrete structures. The objective of this process is to promote the rational use of these local materials in the realization of the floors of social housing. Experimental studies of physical and mechanical characterizations of the lateritic concrete formulated, of the palmyra and rattan woods were carried out. Through tests of tearing and sliding of the interface between normal concrete and laterite concrete (push-out tests), it has been highlighted the adhesion of palmyra wood to concrete and the contribution of rattan lianas to oppose the longitudinal sliding of the interface between two concretes of different nature. The case study of a hollow body slab in mixed concrete (normal and laterite concrete) reinforced with palmyra and rattan woods, showed the structural effectiveness of lateritic earth, of palmyra and rattan woods for their implementation for the realization of a social housing floor of span, of up to 5 m.

Highlights

Rural communities in developing countries have significant deposits of local building materials among which we have: the palmyra (Borassus aethiopum), rattan (Calamus deerratus) (Fig. 1) and laterite
Statement of Novelty The Borassus aethiopum and Calamus deerratus are monocots, the wood of which is used in a disproportionate way in the realization of the structures of traditional earthen construction
Other researchers have used waste materials to improve the mechanical properties of rammed earth structures [25,26,27,28,29]. It is to reverse this trend, that we propose in this work the study of a possibility of using mixed concrete reinforced, with original reinforcements vegetable palmyra wood and rattan lianas) in a hollow body slab which is of the range of modern structures of housing in urban cities

Summary

Introduction

Rural communities in developing countries have significant deposits of local building materials among which we have: the palmyra (Borassus aethiopum), rattan (Calamus deerratus) (Fig. 1) and laterite. The local materials obtained from these natural resources were used in West Africa in the traditional and semi-modern construction practice, respectively by the villagers and the colonizer to build the housings (Fig. 2). Other researchers have used waste materials to improve the mechanical properties of rammed earth structures [25,26,27,28,29] It is to reverse this trend, that we propose in this work the study of a possibility of using mixed concrete (conventional aggregate concrete and concrete with sand and lateritic gravel) reinforced, with original reinforcements vegetable palmyra wood and rattan lianas) in a hollow body slab which is of the range of modern structures of housing in urban cities.

Objectives

Results

Conclusion