Mechanical Properties of Concrete with Burnt Pulverized Chikoko (BPC) as a Sustainable Binder Material

• Author(s): Overo K.E
• Paper ID: 1706679
• Page: 403-409
• Published Date: 20-12-2024
• Published In: Iconic Research And Engineering Journals
• Publisher: IRE Journals
• e-ISSN: 2456-8880
• Volume/Issue: Volume 8 Issue 6 December-2024

Abstract

Burnt Pulverized Chikoko (BPC) has shown potential as a supplementary cementitious material (SCM) for sustainable concrete production. This paper investigates the mechanical properties of concrete incorporating BPC as a partial replacement for cement. A comprehensive literature review provides insights into previous studies on BPC and other calcined clays. This study investigates the compressive strength performance of concrete mixes with varying mix proportions (1:1.5:3 and 1:2:4) under different replacement and admixture levels. The control mix (1:1.5:3) demonstrated consistent strength development, peaking at 27.78 N/mm² at 28 days, while the 1:2:4 mix achieved a slightly lower strength of 25.56 N/mm², highlighting the influence of reduced cement content. Partial replacement of cement (5–20%) showed mixed results: the 1:1.5:3 mix benefited at 5% and 10% replacement levels, achieving up to 30.44 N/mm² at 28 days, while higher replacement levels (15–20%) led to strength reductions due to dilution effects. In contrast, the 1:2:4 mix experienced limited improvements or reductions across all replacement levels. Admixture additions (5–20%) consistently enhanced strength for both mix proportions. The 1:1.5:3 mix achieved a peak strength of 32.89 N/mm² at 15% and 20% admixture levels, while the 1:2:4 mix reached a maximum of 30.22 N/mm² at 20% admixture. The results underscore the significant role of cement content, replacement levels, and admixture dosages in optimizing concrete strength development. These findings highlight BPC's potential as a sustainable alternative for reducing Portland cement usage and enhancing the sustainability of construction practices.

Keywords

Burnt Pulverized Chikoko (BPC), Supplementary Cementitious Material (SCM), Sustainable Concrete, Compressive Strength, Cement Replacement, Admixture

Citations

IRE Journals:
Overo K.E "Mechanical Properties of Concrete with Burnt Pulverized Chikoko (BPC) as a Sustainable Binder Material" Iconic Research And Engineering Journals Volume 8 Issue 6 2024 Page 403-409

IEEE:
Overo K.E "Mechanical Properties of Concrete with Burnt Pulverized Chikoko (BPC) as a Sustainable Binder Material" Iconic Research And Engineering Journals, 8(6)