CIEDE2000 colour difference formula for surface colour analysis of low-carbon grey and white portland cement pastes with high-volume GGBS replacement
CIEDE2000色差式を用いた高炉スラグ高含有の低炭素灰色および白色ポルトランドセメントペーストの表面色分析 (AI 翻訳)
Payam Shafigh, Poh-Yee Loh, Yong Jin, Soon Poh Yap
🤖 gxceed AI 要約
日本語
本研究は、高炉スラグ（GGBS）を普通および白色ポルトランドセメントに置換した低炭素セメントペーストの色彩をCIEDE2000色差式で分析した。水養生白色セメントが最も色の均一性が高く、普通セメントが低かった。GGBS添加により普通セメントの明度は上昇し白色セメントは低下した。赤色顔料添加で色差が大幅に低減し、高含有GGBSでも製品表面色への影響が抑制されることを示した。
English
This study analyzes the surface colour of low-carbon cement pastes with high-volume GGBS replacement using CIEDE2000. Water-cured white cement had highest colour uniformity, while ordinary cement had lowest. GGBS increased lightness in ordinary cement and decreased in white cement. Adding red iron oxide pigment significantly reduced colour differences, showing high GGBS replacement is feasible without compromising colour in construction products.
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CO2削減のため高炉スラグ混入セメントが広く利用され、本研究は高含有GGBSによる色変化を定量化し建築製品への適用可能性を示す。建設分野の脱炭素化に寄与する知見。
In the global GX context
As the global construction sector seeks low-carbon alternatives, this study provides data on aesthetic implications of high-volume GGBS in cement, important for market acceptance of low-carbon concrete.
👥 読者別の含意
🔬研究者:Provides colourimetric data on GGBS cement pastes useful for material scientists and concrete technologists.
🏢実務担当者:Helps construction product manufacturers assess colour impact when switching to low-carbon cement blends.
📄 Abstract（原文）
Abstract The global movement towards sustainable concrete is accelerating the adoption of low-carbon cement within the construction sector. Many engineering properties of low-carbon cement-based materials (CBMs) containing supplementary cementitious materials have been extensively studied and are well understood, but information regarding colour properties is limited. In this study, a colour analysis was conducted on cement paste incorporating ground granulated blast furnace slag (GGBS) as replacement material for ordinary Portland cement (OPC) and white Portland cement (WPC). The replacement levels were set at 0%, 30%, 50% and 70% by OPC or WPC volume. Results from CIEDE2000 colour difference formula (∆ E 00 ) showed that the water-cured WPC paste had highest colour uniformity (∆ E 00 = 0.10 ± 0.03), whereas the OPC paste had the lowest (∆ E 00 = 1.29 ± 0.76). GGBS addition increases the lightness ( L *) of the OPC paste but decreases the L * of the WPC paste at similar rates. The highest colour difference (∆ E 00 ) between a control mix (has only OPC or WPC) and mixes containing 70% GGBS was approximately 7. When red iron oxide pigment was added, the ∆ E 00 value dropped to approximately 3.7 for the WPC mix and 1.5 for the OPC mix. This result shows that a notable colour change was observed when Portland cement was replaced with high-volume GGBS in the cement pastes, but this colour difference was considerably reduced in pigmented mixtures. This interesting result reveals that in construction products, Portland cement can be replaced with high-volume GGBS without compromising the products’ surface colour.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41598-026-56426-4first seen 2026-06-13 04:58:10
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。