TY - JOUR
T1 - Effects of the incorporation of residue of masonry on the properties of cementitious mortars
AU - Silva, Yimmy Fernando
AU - Lange, David A.
AU - Delvasto, Silvio
N1 - Funding Information:
The authors would like to thank: Universidad del Valle (Colombia), Grupo Materiales Compuestos (GMC), Centro de Excelencia de Nuevos Materiales (CENM, Universidad del Valle), and Colciencias-Minciencias for the support given to the Project 21060 ?Aerogeles sil?ceas obtenidas de la cascarilla de arroz mediante un proceso qu?mico sostenible para aplicaciones en superaislamiento t?rmico de edificaciones? convocatoria 808-2018 Proyectos de Ciencia, Tecnolog?a e Innovaci?n y su contribuci?n a los retos de pa?s-Colciencias. C?digo de Convenio: FP-141-2019. We also acknowledge the support given by professor David A. Lange and the Department of Civil Engineering, University of Illinois in Urbana-Champaign.
Publisher Copyright:
© 2020 All Rights Reserved
PY - 2020
Y1 - 2020
N2 - This research presents the results of an experimental study about the potentiality of using residues of masonry (RM), sampled from construction and demolition waste (CDW), as supplementary cementitious material (SCM). The Portland cement was partially replaced by RM up to 50% in weight (0%, 12.5%, 25%, 37.5% and 50%). Various tests were carried out for: pozzolanic activity (fixed lime and strength activity index), the heat of hydration, setting time, the (autogenous and by drying) shrinkage, and compressive strength. Experimental results shown that the RM has a positive activity because the increase of RM replacement level in the mortars generates a lower heat of hydration and autogenous and drying shrinkage. The fixed lime test at 28 and 180 days, indicated that the RM exhibits pozzolanic activity to some degree, and the Strength Activity Index (SAI) according to ASTM C311, was 77.13% and 84.36% at 7 and 28 days, respectively. These results indicate that RM should be considered appropriate for using as supplementary cementitious material.
AB - This research presents the results of an experimental study about the potentiality of using residues of masonry (RM), sampled from construction and demolition waste (CDW), as supplementary cementitious material (SCM). The Portland cement was partially replaced by RM up to 50% in weight (0%, 12.5%, 25%, 37.5% and 50%). Various tests were carried out for: pozzolanic activity (fixed lime and strength activity index), the heat of hydration, setting time, the (autogenous and by drying) shrinkage, and compressive strength. Experimental results shown that the RM has a positive activity because the increase of RM replacement level in the mortars generates a lower heat of hydration and autogenous and drying shrinkage. The fixed lime test at 28 and 180 days, indicated that the RM exhibits pozzolanic activity to some degree, and the Strength Activity Index (SAI) according to ASTM C311, was 77.13% and 84.36% at 7 and 28 days, respectively. These results indicate that RM should be considered appropriate for using as supplementary cementitious material.
KW - Residue of masonry
KW - hydration heat
KW - pozzolan
KW - shrinkage
KW - supplementary cementitious material
UR - http://www.scopus.com/inward/record.url?scp=85098845782&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85098845782&partnerID=8YFLogxK
U2 - 10.7764/RDLC.19.3.407
DO - 10.7764/RDLC.19.3.407
M3 - Article
AN - SCOPUS:85098845782
VL - 19
SP - 407
EP - 421
JO - Revista de la Construccion
JF - Revista de la Construccion
SN - 0717-7925
IS - 3
ER -