A feasibility study on Usumacinta River sediment-based bricks for resilient housing adapted to both climate change and seismic risks is performed on laterally loaded reduced-scale walls. Mortar formulations with different volume ratios of lime and sand (2/1, 1/2, 1/4, 1/6) are prepared while different types of sediment-based bricks are thoroughly i...
Light earth is a natural insulating material composed of earth and vegetal fibres. It can be used to insulate existing and new buildings to reduce energy and resources consumption, and excavated earth generation by the construction sector. A pedological database is crossed with suitability thresholds in order to evaluate spatially the availability ...
L'Anses a été saisie le 16 novembre 2021 par la Direction générale de la prévention des risques (DGPR) pour la réalisation de l'expertise relative aux impacts sanitaires et environnementaux de matières plastiques biosourcées, biodégradables et compostables. L'expertise relève du domaine de compétences du comité(s) d'experts spécialisé (CES) " Évalu...
The palm oil industry is the leading source of palm oil waste fibers. The disposal of palm oil waste fibers by burning or dumping causes environmental issues such as the emission of CO2 and a diminution in soil fertility. Natural fiber reuse in construction materials such as concrete, mortar and adobe bricks as reinforcement provides a possible eco...
Published in Philosophical transactions of the Royal Society of London. Series B, Biological sciences
The need for a vast quantity of new buildings to address the increase in population and living standards is opposed to the need for tackling global warming and the decline in biodiversity. To overcome this twofold challenge, there is a need to move towards a more circular economy by widely using a combination of alternative low-carbon construction ...
This paper aims to qualify and quantify the various scales of porosities and densities in plant particles packings (hemp shiv) used for building applications. These characteristics are key parameters for the understanding of the mechanical, thermal and acoustical behaviors of particles used as loose aggregates or in bio-based concretes. A study was...
4th International Conference on Bio-Based Building Materials, Barcelone, ESPAGNE, 16-/06/2021 - 18/06/2021
Bio-based materials are an environmentally friendly alternative to classic construction materials, yet their generally low density can lead to poor acoustic properties. The acoustic performance of hemp shiv and sunflower pith composites is therefore analyzed using Kundt's tube. Although the loose aggregates present an exceptional sound absorbing be...
The need for a vast quantity of new buildings to address the increase in population and living standards is opposed to the need for tackling global warming and the decline in biodiversity. To overcome this twofold challenge, there is a need to move towards a more circular economy by widely using a combination of alternative low-carbon construction ...
Increasing environmental concern has put forward the use of flax fibers instead of glass fibers in composite materials. However, durability performances of these bio-fibers remain one of their main issues. This study focuses on the hydrothermal aging of flax fibers. Flax tows were immersed in distilled water at a temperature of 80 °C for different ...
