TY - JOUR
T1 - Stress and Strain Behavior of Confined Lightweight Concrete using Sand Coated Polypropylene Coarse Aggregate
AU - Purnomo, Heru
AU - Baskoro, Heru
AU - Muslim, Fadhilah
N1 - Funding Information:
The authors express their gratitude to the Ministry of Education, Culture, Research and Technology, Republic Indonesia and Universitas Indonesia for facilitating this study with Prime Basic Research Grant 2020-2021, No. NKB-198/UN2.RST/HKP.05.00/2021.
Publisher Copyright:
© 2021. International Journal of Technology. All Rights Reserved.
PY - 2021
Y1 - 2021
N2 - Plastic waste greatly contributes to environmental pollution; therefore, using plastic waste in various applications, such as in concrete, is an important waste reduction strategy which could be contributed by the construction industry. This study presents the development of a concrete stress and strain model under compression for confined concrete specimens using polypropylene plastic as a substitution for coarse aggregate. Various short-column specimens were analyzed for stress and strain characteristics, effect of steel confinement, and compressive performance. Steel confinement increased the compressive strength and ductility of the section. The parametric identification of a stress-strain model defined for normal concrete was used in the experimental results to obtain new parameter values for the confinement coefficients k1 that are suitable for cylindrical and square lightweight concrete sections. The stress-strain diagrams for lightweight concrete of experimental cylinder and square column specimens, compared with the stress-strain modeled by the modified coefficients, indicate a fairly close agreement.
AB - Plastic waste greatly contributes to environmental pollution; therefore, using plastic waste in various applications, such as in concrete, is an important waste reduction strategy which could be contributed by the construction industry. This study presents the development of a concrete stress and strain model under compression for confined concrete specimens using polypropylene plastic as a substitution for coarse aggregate. Various short-column specimens were analyzed for stress and strain characteristics, effect of steel confinement, and compressive performance. Steel confinement increased the compressive strength and ductility of the section. The parametric identification of a stress-strain model defined for normal concrete was used in the experimental results to obtain new parameter values for the confinement coefficients k1 that are suitable for cylindrical and square lightweight concrete sections. The stress-strain diagrams for lightweight concrete of experimental cylinder and square column specimens, compared with the stress-strain modeled by the modified coefficients, indicate a fairly close agreement.
KW - Compression
KW - Confinement
KW - Lightweight concrete
KW - Polypropylene aggregate
KW - Stress-strain
UR - http://www.scopus.com/inward/record.url?scp=85123092655&partnerID=8YFLogxK
U2 - 10.14716/IJTECH.V12I6.5195
DO - 10.14716/IJTECH.V12I6.5195
M3 - Article
AN - SCOPUS:85123092655
SN - 2086-9614
VL - 12
SP - 1261
EP - 1272
JO - International Journal of Technology
JF - International Journal of Technology
IS - 6
ER -