Impacts of anisotropy coefficient and porosity on the thermal conductivity and P-wave velocity of calcarenites used as building materials of historical monuments in Morocco  

作　　者：Abdelaali Rahmouni Abderrahim Boulanouar Younes El Rhaffari Mohammed Hraita Aziz Zaroual Yves Géraud Jamal Sebbani Abdellah Rezzouk Bassem S.Nabawy 

机构地区：[1]Laboratory of Solid State Physics,Department of Physics,Faculty of Science Dhar El Mahraz,Sidi Mohamed Ben Abdellah University,Fez,Morocco [2]Laboratory of Applied Sciences,National School of Applied Sciences,Abdelmalek Essaadi University,Al Hoceima,Morocco [3]Laboratory of Civil Engineering and Environment,Higher School of Technology of Salé,Mohammed V University,Rabat,Morocco [4]Department of Physics,Higher Normal School,Mohammed V University,Rabat,Morocco [5]Laboratory of Materials,Nanotechnologies and Environment,Faculty of Science,Mohammed V University,Rabat,Morocco [6]University of Lorraine,ENSG,UMR 7359-GeoRessources,Nancy,France [7]Mechanics and Materials Team,Faculty of Science,Mohammed V University,Rabat,Morocco [8]Geophysical Sciences Department,National Research Centre,Cairo,Egypt

出　　处：《Journal of Rock Mechanics and Geotechnical Engineering》2023年第7期1687-1699,共13页岩石力学与岩土工程学报（英文版）

摘　　要：It is essential to study the porosity,thermal conductivity,and P-wave velocity of calcarenites,as well as the anisotropy coefficients of the thermal conductivity and P-wave velocity,for civil engineering,and conservation and restoration of historical monuments.This study focuses on measuring the thermal conductivity using the thermal conductivity scanning(TCS)technique and measuring the P-wave ve-locity using portable equipment.This was applied for some dry and saturated calcarenite samples in the horizontal and vertical directions(parallel and perpendicular to the bedding plane,respectively).The calcarenites were selected from some historical monuments in Morocco.These physical properties were measured in the laboratory to find a reliable relationship between all of these properties.As a result of the statistical analysis of the obtained data,excellent linear relationships were observed between the porosity and both the thermal conductivity and porosity.These relationships are characterized by relatively high coefficients of determination for the horizontal and vertical samples.Based on the thermal conductivity and P-wave velocity values in these two directions,the anisotropy coefficients of these two properties were calculated.The internal structure and the pore fabric of the calcarenite samples were delineated using scanning electron microscopy(SEM),while their chemical and mineral compositions were studied using the energy dispersive X-ray analysis(EDXA)and X-ray diffraction(XRD)techniques.

关 键 词：Moroccan historical monuments Calcarenite Thermal conductivity P-wave velocity POROSITY Anisotropy coefficient Water saturation 

分 类 号：P314[天文地球—固体地球物理学]