Open Journal of Civil Engineering, 2022, 12, 87-100 https://www.scirp.org/journal/ojce ISSN Online: 2164-3172 ISSN Print: 2164-3164 DOI: 10.4236/ojce.2022.121007 Mar. 23, 2022 87 Open Journal of Civil Engineering Concrete Filled Plastic Stub Columns Strength under Axial Compression Faesal Alatshan 1 , Abdelmajeed Altlomate 2 , Samie Hamad 3 1 Department of Civil Engineering, College of Engineering Technology, Houn, Libya 2 Sirte University, Sirte, Libya 3 Missouri University of Science and Technology, Missouri, USA Abstract The development of Concrete Filled Plastic Tube (CFPT) Stub Columns, is commonly used in the areas where the concrete structures interact with ma- rine and saline environments, compared to regular concrete columns. Several CFPT stub column samples were prepared to investigate their behaviour un- der certain loading conditions. The main objective of this study was to con- duct an experimental investigation to observe the effect of using CFPT with different diameters on the final strength of the concrete columns. In order to achieve this target, two types of loading conditions were applied, including separate load on the concrete and combined load on the concrete and the plastic tube simultaneously. The study revealed a significant improvement in the compressive strength of CFPT columns with different diameters (70 - 100 - 150 mm). Overall results show that the use of CFPT columns provides better mechanical performance compared to ordinary concrete columns. An evalua- tion of using the available calculation methods to predict the load-carrying capacities of CFPT. The study suggested the use of CFPT columns in situa- tions where common concrete may cause significant issues related to its dete- rioration and disintegration in response to severe weather conditions. Keywords Concrete, Plastic, CFPT, Composites, Columns, Compressive 1. Introduction The construction industry is one of the areas that have remarkable research po- tential which is also required to improve the conventional construction prac- tices. Better construction elements are supposed to have better mechanical prop- How to cite this paper: Alatshan, F., Al- tlomate, A. and Hamad, S. (2022) Concrete Filled Plastic Stub Columns Strength under Axial Compression. Open Journal of Civil Engineering, 12, 87-100. https://doi.org/10.4236/ojce.2022.121007 Received: December 9, 2021 Accepted: March 20, 2022 Published: March 23, 2022 Copyright © 2022 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access