貝殻を利用した高強度・高速硬化セメントの開発（Oyster cement: Scientists study shellfish to make stronger, faster-curing building material）

2026-05-05 パデュー大学

＜関連情報＞

• https://www.purdue.edu/newsroom/2026/Q2/oyster-cement-scientists-study-shellfish-to-make-stronger-faster-curing-building-material/
• https://pubs.acs.org/doi/10.1021/acs.chemmater.5c03115

カキ礁を模倣して性能向上セメントを生成する Mimicking Oyster Reefs to Generate Cements with Enhanced Performance

Mitchell E. Meger,Collin R. Scott,and Jonathan J. Wilker
Chemistry of Materials  Published February 19, 2026
DOI:https://doi.org/10.1021/acs.chemmater.5c03115

Abstract

Oysters construct reef structures by bonding together with cement. This unique adhesive is made from mostly inorganics (∼85% CaCO₃) with a minor portion of organics (∼12%). Phosphorylated proteins may be a key component within this binder. Such insights are used here to design a new class of biomimetic polymer-modified cements. Systematic variations to the polymer design, functional groups, polymer loading, CaCO₃ content, particle size, and cure temperature are all examined. Commercial masonry sealants provide benchmarks. The optimized system was examined alone and also in combination with commercial mortar mix. Significant enhancements to adhesion and compressive strength were found. These results show that a biomimetic approach to designing cement is a promising route to higher performance in one of the most widely produced man-made materials.