Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements

Reinforced concrete structures are typically built in three steps: installing steel reinforcement, assembling formwork, and casting concrete. These steps are carried out sequentially, thus taking time and delaying the project’s operation, leading to reduced economic efficiency. Researching solutions...

Full description

Saved in:
Bibliographic Details
Main Authors: Dac-Duc Nguyen, Ba-Thanh Vu, Nhat-Minh Hoang
Format: Article
Language:English
Published: Tamkang University Press 2025-06-01
Series:Journal of Applied Science and Engineering
Subjects:
Online Access:http://jase.tku.edu.tw/articles/jase-202602-29-02-0003
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1839651405546127360
author Dac-Duc Nguyen
Ba-Thanh Vu
Nhat-Minh Hoang
author_facet Dac-Duc Nguyen
Ba-Thanh Vu
Nhat-Minh Hoang
author_sort Dac-Duc Nguyen
collection DOAJ
description Reinforced concrete structures are typically built in three steps: installing steel reinforcement, assembling formwork, and casting concrete. These steps are carried out sequentially, thus taking time and delaying the project’s operation, leading to reduced economic efficiency. Researching solutions to shorten construction time will contribute to bringing about clear economic efficiency. The study conducted experiments and numerical simulations of cylindrical specimens with a diameter of 250 mm , manufactured using 45 MPa concrete, casting tubulars with thicknesses of 15 mm, 20 mm, and 25 mm , respectively, as formwork, leaving the concrete filled with self-compacting concrete with a strength of 30 MPa . The specimens were tested and simulated in two cases: compression of the total cross-section and compression of the concrete-filled section. The research results show that, in addition to determining the optimal tubular thickness of 15 mm , determining the correlation between the concrete-filled and tubular concrete strength of 1.5 times allows us to use the same concrete production technology to save costs and simplify production.
format Article
id doaj-art-db34b239dbc448ff830b68b246a3231f
institution Matheson Library
issn 2708-9967
2708-9975
language English
publishDate 2025-06-01
publisher Tamkang University Press
record_format Article
series Journal of Applied Science and Engineering
spelling doaj-art-db34b239dbc448ff830b68b246a3231f2025-06-26T07:35:34ZengTamkang University PressJournal of Applied Science and Engineering2708-99672708-99752025-06-0129226727810.6180/jase.202602_29(2).0003Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elementsDac-Duc Nguyen0Ba-Thanh Vu1Nhat-Minh Hoang2Faculty of Civil Engineering, University of Transport and Communications, Hanoi, VietnamFaculty of Civil Engineering, University of Transport and Communications, Hanoi, VietnamViettel Aerospace Institute, Hanoi, VietnamReinforced concrete structures are typically built in three steps: installing steel reinforcement, assembling formwork, and casting concrete. These steps are carried out sequentially, thus taking time and delaying the project’s operation, leading to reduced economic efficiency. Researching solutions to shorten construction time will contribute to bringing about clear economic efficiency. The study conducted experiments and numerical simulations of cylindrical specimens with a diameter of 250 mm , manufactured using 45 MPa concrete, casting tubulars with thicknesses of 15 mm, 20 mm, and 25 mm , respectively, as formwork, leaving the concrete filled with self-compacting concrete with a strength of 30 MPa . The specimens were tested and simulated in two cases: compression of the total cross-section and compression of the concrete-filled section. The research results show that, in addition to determining the optimal tubular thickness of 15 mm , determining the correlation between the concrete-filled and tubular concrete strength of 1.5 times allows us to use the same concrete production technology to save costs and simplify production.http://jase.tku.edu.tw/articles/jase-202602-29-02-0003concrete formworkaxial compressionconcrete shell thicknessconcrete tubularfinite element method
spellingShingle Dac-Duc Nguyen
Ba-Thanh Vu
Nhat-Minh Hoang
Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
Journal of Applied Science and Engineering
concrete formwork
axial compression
concrete shell thickness
concrete tubular
finite element method
title Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
title_full Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
title_fullStr Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
title_full_unstemmed Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
title_short Research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
title_sort research on determining the correlation between the strength of the concrete core and the concrete used as tubular formwork in compressed structural elements
topic concrete formwork
axial compression
concrete shell thickness
concrete tubular
finite element method
url http://jase.tku.edu.tw/articles/jase-202602-29-02-0003
work_keys_str_mv AT dacducnguyen researchondeterminingthecorrelationbetweenthestrengthoftheconcretecoreandtheconcreteusedastubularformworkincompressedstructuralelements
AT bathanhvu researchondeterminingthecorrelationbetweenthestrengthoftheconcretecoreandtheconcreteusedastubularformworkincompressedstructuralelements
AT nhatminhhoang researchondeterminingthecorrelationbetweenthestrengthoftheconcretecoreandtheconcreteusedastubularformworkincompressedstructuralelements