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PRELIMINARY STUDY OF ACACIA DEALBATA LOGS FOR USE IN CONSTRUCTION: VISUAL CHARACTERIZATION AND NON-DESTRUCTIVE TESTING

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dc.creatorCLAUDIO ANDRÉS MONTERO NAHUELCURA
dc.creatorALEXANDER IGOR OPAZO VEGA
dc.creatorMANUEL ERNESTO SUAZO URIBE
dc.date2025
dc.date.accessioned2025-10-29T13:22:04Z
dc.date.available2025-10-29T13:22:04Z
dc.date.issued2025
dc.description.abstractTHIS STUDY PROVIDES A PRELIMINARY MECHANICAL CHARACTERIZATION OF MINIMALLY PROCESSED ACACIA DEALBATA LOGS TO ASSESS THEIR POTENTIAL VALORISATION AS A BY-PRODUCT OF INVASIVE SPECIES MANAGEMENT. A TOTAL OF 45 LOGS (90-143 MM DIAMETER) FROM TWO HARVEST SEASONS GROUPS, SPRING (17 LOGS, 2.0 M) AND WINTER (28 LOGS, 2.4 M), WERE VISUALLY SELECTED AND EVALUATED FOR DYNAMIC MODULUS OF ELASTICITY USING LONGITUDINAL STRESS WAVE AND TRANSVERSE VIBRATION TESTS. TESTING WAS CONDUCTED IN TWO MOISTURE CONTENT STATES: AIR-DRIED (> 12%) AND KILN-DRIED (? 12%). SIGNIFICANT DIFFERENCES BETWEEN THE TWO GROUPS NECESSITATED SEPARATE ANALYSES AND SUGGESTED A RELATIONSHIP BETWEEN HARVESTING SEASON AND PHYSICAL-MECHANICAL PROPERTIES. ALTHOUGH DYNAMIC PROPERTIES INCREASED POST-KILN DRYING, INITIAL DYNAMIC MODULUS OF ELASTICITY VALUES WERE LOWER DUE TO ELEVATED INITIAL MOISTURE CONTENT. VISUAL CHARACTERISTICS EXHIBITED WEAK CORRELATIONS WITH DYNAMIC PROPERTIES, WHEREAS HIGH CORRELATIONS WERE OBSERVED BETWEEN ADJUSTED DYNAMIC MODULUS OF ELASTICITY VALUES FOR BOTH MOISTURE STATES (R > 0,90 FOR LONGITUDINAL STRESS WAVE; R > 0,70 FOR TRANSVERSE VIBRATION). ADJUSTED DYNAMIC MODULUS OF ELASTICITY VALUES (18,29/14,00 GPA FOR LONGITUDINAL STRESS WAVE; 16,32/12,69 GPA FOR TRANSVERSE VIBRATION) WERE COMPARABLE TO PRIOR STUDIES AND SUPPORT A POTENTIAL CLASSIFICATION OF ACACIA DEALBATA (MIMOSA) LOGS FOR STRUCTURAL APPLICATIONS.
dc.formatapplication/pdf
dc.identifier.doi10.22320/s0718221x/2025.23
dc.identifier.issn0717-3644
dc.identifier.issn0718-221X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/14274
dc.language
dc.publisherMADERAS: CIENCIA Y TECNOLOGIA
dc.relation.uri10.22320/s0718221x/2025.23
dc.rightsOPEN ACCESS
dc.subjectSmall-diameter logs
dc.subjectDynamic modulus of elasticity
dc.subjectAcoustic testing
dc.subjectAcacia dealbata
dc.titlePRELIMINARY STUDY OF ACACIA DEALBATA LOGS FOR USE IN CONSTRUCTION: VISUAL CHARACTERIZATION AND NON-DESTRUCTIVE TESTING
dc.typeARTÍCULO
dspace.entity.typePublication
oaire.licenseConditionCC BY 4.0
ubb.EstadoPUBLICADA
ubb.Otra ReparticionLABORATORIO DE ADHESIVO Y MATERIALES COMPUESTOS
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA CIVIL Y AMBIENTAL
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS DE LA CONSTRUCCION
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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