Mechanical and thermal performance of cementitious composites incorporating SiO2-encapsulated n-octadecane microcapsules and carbon nanomaterials

2026-08-04

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Yuxuan Wang

Liguo Wang *

Shan Gao

Han Wang

Liqun Lu

Zhiyong Liu

Fengjuan Wang

Mengying Yang

Jinyang Jiang

DOI：10.1016/j.jobe.2026.116997

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Abstract

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• SiO2@n-OD microcapsules showed high latent heat and leakage resistance. • MWCNTs and CNFs improved pore structure and interfacial continuity. • Repeated cycling confirmed stable short-term thermal buffering. • SiO2 shells and carbon nanomaterials balanced thermal and mechanical performance.

Keywords:

Phase change microcapsules

Carbon nanomaterials

Hydration kinetics

Mechanical compensation

Mechanical and thermal performance of cementitious composites incorporating SiO2-encapsulated n-octadecane microcapsules and carbon nanomaterials

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