Ascertaining the Feasibility of Using Locally Sourced Chicken Eggshell Powder as A Supplementary Cementing Material: An Example from Ghana
地元調達の鶏卵殻粉末の追加セメント材料としての実現可能性の評価：ガーナの事例 (AI 翻訳)
M. Somiah, I. Manu, F. O. Danso, M. Biney
🤖 gxceed AI 要約
日本語
本研究は、ガーナ・タコラディで調達した鶏卵殻粉末（CESP）をコンクリートの追加セメント材料として利用する可能性を評価。CESPを0～20%でセメント代替した試験体で、圧縮強度や元素分析を実施。10%代替までは強度が向上するが、それを超えると性能が低下することを示した。実務向けの回帰モデルも開発。
English
This study assesses the feasibility of using locally sourced chicken eggshell powder (CESP) as a supplementary cementing material in concrete in Ghana. Tests with 0-20% replacement show improved compressive and flexural strength up to 10% replacement, beyond which performance declines. Regression models are provided for practitioners.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では低炭素コンクリートや廃棄物活用の研究が進むが、本件はガーナの事例。途上国におけるセメント代替材料の実証として参考になる可能性がある。
In the global GX context
This paper provides empirical data on eggshell powder as a cement substitute in a developing country context, contributing to global efforts in sustainable construction and embodied carbon reduction.
👥 読者別の含意
🔬研究者:Provides empirical data and regression models for CESP concrete that can inform further studies on alternative cementitious materials.
🏢実務担当者:The regression models offer a practical tool for determining optimal CESP replacement levels in concrete mix design.
🏛政策担当者:Evidence for promoting waste valorization in construction material standards, particularly in regions with abundant eggshell waste.
📄 Abstract（原文）
Although the use of locally sourced Chicken Eggshell Powder (CESP) as a Supplementary Cementing Material (SCM) in concrete is a sustainability measure towards reducing the embodied carbon of concrete and promoting eggshell waste valorization, little is known of studies that evaluated the feasibility of locally sourced CESP as an SCM in Ghana. This study assesses the feasibility of chicken eggshell powder, sourced from poultry and food vendors in Takoradi, Ghana, as a supplementary cementing material in concrete production. Concrete specimens were prepared with Portland limestone cement partially replaced with CESP in proportions of 0%, 5%,10%,15%, and 20%. Tests, including XRF, EDS, and compressive strength tests, were the basis for assessing the performance of fresh and hardened CESP concretes. EDS and XRF analyses revealed essential elements in cements for C-S-H formation during hydration, such as Si, Fe, and Ca in CESP also. A low workability slump, S1: 10-40 mm, was recorded for CESP concretes. Compressive and flexural strengths of concrete improved progressively up to 10% partial replacement, beyond which further increases in partial replacement resulted in diminishing performance for ages, in days, 7, 28, and 63. Density decreased as the percentage of CESP in concrete increased. Empirically, the elemental composition of CESP from Takoradi has been established, likewise the characteristics of CESP concrete with CESP from Takoradi, an area with limited prior investigations. Practically, regression equation models were developed to aid construction practitioners in determining the optimal level of partially replacing cement with CESP in concrete mix at ages 7,28, and 63 days.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.14445/23488352/ijce-v13i5p104first seen 2026-06-29 07:04:20
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