Composition of Engineered Cementitious Composite with Local Materials, Composite Properties and Its Utilization for Structures in Developing Countries †
Abstract
:1. Introduction
2. ECC Criteria’s and Properties
2.1. ECC Micromechanics
2.2. ECC Properties
3. Materials and Employed Methodology
3.1. Materials and Specimen Preparation
3.2. Mix Design, Manufacturing, Casting and Specimens
3.3. Testing
3.3.1. Procedures for Mechanical Properties
3.3.2. Test Setup for Flexural Capacity of Slabs
4. Results
4.1. Composite Properties of PC and ECC
4.2. Flexural Behaviour of Slabs with PC and ECC
4.2.1. Load Deflection Curves
4.2.2. Flexural Capacity
5. Conclusions
- PPGF-ECC exhibited notable mechanical property improvements compared to PC, including higher strength, increased energy absorption pre and post peak and enhanced toughness, demonstrating its superior performance.
- Remarkably, the 2% PPGF-ECC showed a significant 45% increase in compressive strength and enhanced toughness, along with the highest STS and F-S values, compared to PCCs C-S, STS and F-S.
- PC was brittle with a sudden graph drop in the flexural test, whereas PPGF-ECC exhibited pseudo ductility after the peak load. PPGF-ECC displayed a cracking pattern with a single large crack and a few small multiple cracks, while the specimen of PCC broke with single large cracks, presenting the brittle nature of the composite.
6. Possible Practical Application
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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S. No | Composite | Fracture Pattern | Composite Behavior | Graphical Image | High Strength | High Deformation | Ref |
---|---|---|---|---|---|---|---|
1 | Ideal ECC | Multiple close cracks | Strain hardening | ✓ | ✓ | [2] | |
2 | ECC | Multiple spaced cracks | Pseudo ductile | ✓ | ✓ | [15] | |
3 | Acceptable ECC or HPFRCC | Single crack | Pseudo ductile | ✓ | ✓ | [16,17] | |
4 | FRC | Single crack | Low ductility | ✗ | ✗ | [18] | |
5 | PC | Broken in two pieces | Brittle | ✗ | ✗ | [18] |
Composite | Compressive Strength (MPa) | Split Tensile Strength (MPa) | Flexural Strength (MPa) |
---|---|---|---|
PC NS | 25 | 1.5 | 2.2 |
2% PPGF NS | 41 | 2.8 | 4.7 |
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Sikandar, A.; Ali, M. Composition of Engineered Cementitious Composite with Local Materials, Composite Properties and Its Utilization for Structures in Developing Countries. Eng. Proc. 2023, 53, 16. https://doi.org/10.3390/IOCBD2023-15179
Sikandar A, Ali M. Composition of Engineered Cementitious Composite with Local Materials, Composite Properties and Its Utilization for Structures in Developing Countries. Engineering Proceedings. 2023; 53(1):16. https://doi.org/10.3390/IOCBD2023-15179
Chicago/Turabian StyleSikandar, Amaan, and Majid Ali. 2023. "Composition of Engineered Cementitious Composite with Local Materials, Composite Properties and Its Utilization for Structures in Developing Countries" Engineering Proceedings 53, no. 1: 16. https://doi.org/10.3390/IOCBD2023-15179