Enhancing compressive strength in concrete with waste ceramic tiles: Effects of selected aggregate modification treatments, water-cement ratio and curing periods for decision tree regression analysis

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Document Type

Article

Source Title

Journal of Engineering Science and Technology

Volume

19

Issue

3

First Page

744

Last Page

761

Publication Date

2024

Abstract

Due to the ceramic tile waste’s (CTW) negative impact on workability, this study incorporated three aggregate modification treatments (AMTs) on the CTWs, namely cement impregnation (CI), sodium silicate soaking (SS), and slurry wrapping (SW). Concrete batches were prepared, with varying CTW replacements of 0%, 25%, and 50% to gravel, and water-cement ratios (w/c) of 0.5 and 0.6. Slump tests and compressive strength tests at curing periods of 7 and 28 days were conducted. Experimental results showed that concrete mixes with CI treatment produced the highest compressive strength, while the concrete batches with 0.6 w/c produced higher compressive strengths. However, concrete mix that considered SW treatment showed a reduction in compressive strength relative to the mix with untreated CTW. The optimum design mix incorporated CI treatment, 25% CTW replacement, and 0.5 w/c. This mix yielded about 16.7% stronger nominal strength compared to the control mix. A decision tree regression (DTR) model was generated to predict the compressive strength based on different combinations for the concrete mix. Based on the model, the AMT showed the most influence on the prediction of compressive strength. Overall results indicate the use of CTW in sustainable concrete production could be further enhanced by CI treatment method.

html

Disciplines

Civil Engineering

Keywords

Cement—Additives—Compression testing; Aggregates (Building materials)—Compression testing

Upload File

wf_no

This document is currently not available here.

Share

COinS