Structural Behavior of Geopolymer Concrete Thin Wall Panels Based on Metakaolin and Recycled Concrete Aggregate



Wissam Kadhim AlsaraJ1, Shaimaa Hasan Fadhi1, Sahar Jabbar Alserai1, *
1 Civil Engineering Department, Mustansiriyah University, Baghdad, Iraq

Abstract

Introduction:

Due to the current popularity of reinforced concrete (RC) wall construction and the new published codes for concrete, RC walls have become just as important structural elements as beams, slabs and columns.

Methods:

This paper presents the structural behavior of geopolymer concrete thin wall panels based on metakaolin and recycled concrete aggregate subjected to axial eccentric uniformly distributed loading with varying aspect ratios (AR=H/L) and steel reinforcement ratios. The experimental program includes testing of five two-way thin geopolymer concrete wall panels; fixed at all sides and applying the load axially with eccentricity equal to the wall thickness/6.

Results and Conclusion:

The results indicate that the load-carrying capacity of the geopolymer concrete wall panels increased to about 63% with a decrease in AR (H/L) from 1.875 to 0.75. The lateral deflection decreased to about 50% with a decrease in AR (H/L) from 1.875 to 0.75. Also, the results show that the load-carrying capacity of the geopolymer concrete wall panels increased to nearly 48% with an increase in the steel reinforcement ratio from 2.32% to 3.38%. The lateral deflection also decreased by 20% with an increase in the steel reinforcement ratio to 3.38%. The results show that locally manufactured Metakaolin can be used for producing Geopolymer concrete.

Keywords: Concrete Wall, Eccentric Load, Two-way Action, Geopolymer concrete, Recycled Concrete Aggregate, Thin Wall Panels, Aspect Ratio, Geopolymer Thin Wall Panels.


Abstract Information


Identifiers and Pagination:

Year: 2019
Volume: 13
Publisher Item Identifier: EA-TOCIEJ-2019-25

Article History:

Received Date: 01/05/2019
Revision Received Date: 27/06/2019
Acceptance Date: 10/07/2019
Electronic publication date: 23/08/2019
Collection year: 2019

© 2019 AlsaraJ et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at Department of Civil Engineering, Mustansiriyah University, Baghdad, Iraq; Tel: +6947706870924; Emails: mesget86@gmail.com; sahar24civil@gmail.com