Article (Scientific journals)
Compressed Earth Blocks with GRC: fabrication, characterization, modeling, and correlation with microstructural fracture features
Valenzuela, Marian; Leiva, Jorge; Salas, Alexis et al.
2023In Materials Today Communications, 37, p. 107028
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Keywords :
CEB; Compressive strength; Three-point flexural strength; Material modeling
Abstract :
[en] In this study, earth blocks (EB) and compressed earth blocks (CEB) are fabricated and investigated along with the development of a mathematical model of compressive and tensile loads. The investigated specimens are manufactured from a mixture of soil, ground recycled concrete (GRC) powder and water in weight fractions of 4:1:1. EBs are molded and CEBs are obtained by quasi-static compression in wet state. Material samples extracted from the blocks are tested in dry state for compressive strength and three-point flexural strength according to ASTM standards. The results indicate that CEB exhibits 130% higher compressive load capacity and 63% higher tensile strength compared to EB. Furthermore, the proposed and calibrated mathematical model is able to describe the strength and damage behavior of both materials adequately. Finally, microstructural/micromechanical interrelationships with the modeled material response are established based on a characterization of postmortem CEB samples using EDS elemental analysis and SEM micrograph techniques.
Disciplines :
Architecture
Author, co-author :
Valenzuela, Marian
Leiva, Jorge
Salas, Alexis 
Ciudad, Gustavo
Cárdenas, Juan Pablo
Oñate, Angelo
Hunter, Renato
Attia, Shady  ;  Université de Liège - ULiège > Département ArGEnCo > Techniques de construction des bâtiments
Tuninetti, Víctor 
Language :
English
Title :
Compressed Earth Blocks with GRC: fabrication, characterization, modeling, and correlation with microstructural fracture features
Publication date :
01 December 2023
Journal title :
Materials Today Communications
eISSN :
2352-4928
Publisher :
Elsevier BV
Volume :
37
Pages :
107028
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
11. Sustainable cities and communities
Funders :
ANID - Agencia Nacional de Investigación y Desarrollo [CL]
Available on ORBi :
since 06 September 2023

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