Hydric characterisation of rammed earth samples for different lime concentrations

2nd International Conference on Sustainable Development in Civil, Urban and Transportation Engineering

地球科学;运输工程;经济学

Soudani, Lucile^1,2 ; Fabbri, Antonin^1 ; Woloszyn, Monika^2 ; Grillet, Anne-Cécile^2 ; Morel, Jean-Claude^3

LGCB-LTDS, UMR 5513 CNRS, ENTPE, Université de Lyon, Vaulx-en-Velin

69100, France^1

LOCIE, Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Chambéry

73000, France^2

School of Energy Construction and Environment, Faculty of Engineering, Environment and Computing, Coventry University, United Kingdom^3

关键词: High relative humidities;    Lime concentration;    Mechanical behavior;    Moisture storage;    Presence of water;    Rammed earth;    Saturated state;    Water uptake;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/143/1/012010/pdf
DOI  :  10.1088/1755-1315/143/1/012010

来源: IOP

【 摘 要 】

The rehabilitation of ancient rammed earth houses, as well as the use of earthen materials in modern constructions, are a growing matter of concern, especially in area such as Rhône-Alpes, France, where 40% of old constructions are in rammed earth. A current pathology observed for this type of construction is related to the rising damps, for which the water from the ground is absorbed by the wall. This situation leads to a very saturated state. As it has been proven that the compressive strength is altered by the presence of water in the pores, a better understanding on high relative humidity range is necessary to be able to predict the mechanical behavior of buildings and thus ensure a better risk assessment. The present study describes experimental results of the water uptake experiments and moisture storage at high relative humidities.