Strength Enhancement, Ductility, and Confinement Effectiveness Index of Fly Ash-based Geopolymer Concrete Square Columns

IF 0.9 Q3 ENGINEERING, MULTIDISCIPLINARY

Journal of Engineering and Technological Sciences Pub Date : 2022-07-18 DOI:10.5614/j.eng.technol.sci.2022.54.4.11

Herwani Herwani, I. Imran, B. Budiono, Ediansjah Zulkifli

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引用次数: 1

Abstract

Geopolymer concrete is an environmentally friendly construction material that has the potential to be applied in building structures. It is important to understand the structural behavior of geopolymer concrete. This paper presents an experimental investigation into the performance of structural elements of geopolymer concrete under concentric axial loads. The specimens were twelve square columns with a size of 170 x 170 mm and a height of 480 mm. The study variables were the tie spacing and the compressive strength of unconfined geopolymer concrete (f’c). The test results showed that the increase in f'cc was not as significant as the increase in unconfined concrete compressive strength (f'c). The value of strength enhancement (K) tended to decrease. The column ductility (m) and confinement effectiveness index (Ic) had optimum values. The effect of increasing the tie spacing (s) decreased the K, Ic, and m values of the column. The proposed f’cc formulation for geopolymer concrete is compatible.

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粉煤灰基地聚合物混凝土方柱的强度增强、延性及约束效能指标

地质聚合物混凝土是一种环境友好的建筑材料，具有应用于建筑结构的潜力。了解地质聚合物混凝土的结构行为非常重要。本文对地质聚合物混凝土结构构件在同心轴向荷载作用下的性能进行了试验研究。试样为12根尺寸为170 x 170 mm、高度为480 mm的方柱。研究变量为无侧限地质聚合物混凝土的连接间距和抗压强度。试验结果表明，f’cc的增加不如无侧限混凝土抗压强度的增加显著。强度增强值（K）呈下降趋势。柱的延性（m）和约束有效性指数（Ic）具有最佳值。增加连接间距的影响降低了柱的K、Ic和m值。所提出的用于地质聚合物混凝土的f'cc配方是相容的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Engineering and Technological Sciences ENGINEERING, MULTIDISCIPLINARY-

CiteScore

2.30

自引率

11.10%

发文量

审稿时长

24 weeks

期刊介绍： Journal of Engineering and Technological Sciences welcomes full research articles in the area of Engineering Sciences from the following subject areas: Aerospace Engineering, Biotechnology, Chemical Engineering, Civil Engineering, Electrical Engineering, Engineering Physics, Environmental Engineering, Industrial Engineering, Information Engineering, Mechanical Engineering, Material Science and Engineering, Manufacturing Processes, Microelectronics, Mining Engineering, Petroleum Engineering, and other application of physical, biological, chemical and mathematical sciences in engineering. Authors are invited to submit articles that have not been published previously and are not under consideration elsewhere.