Hydration simulation of cement pastes reinforced with carbon nanotubes

被引：7

作者：

Lee, Seon Yeol ^{[1
]}

Nguyen, Van Thong ^{[1
]}

Chung, Sang-Yeop ^{[1
]}

Moon, Jae-Heum ^{[2
]}

Kim, Dong Joo ^{[1
]}

机构：

[1] Sejong Univ, Railway Infrastruct Res Ctr, Dept Civil & Environm Engn, 209 Neungdong Ro, Seoul 05006, South Korea

[2] Korea Inst Civil Engn & Bldg Technol, Dept Struct Engn Res, Goyang 10223, South Korea

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 384卷

关键词：

Hydration; Multiphase voxels; Dissolution rate; CEMHYD3D; MICROSTRUCTURAL DEVELOPMENT; NUMERICAL-SIMULATION; COMPUTER-SIMULATION; DISPERSION STATE; PERCOLATION; POLYMER; MODEL; NANOCOMPOSITES; RESOLUTION; STRENGTH;

D O I：

10.1016/j.conbuildmat.2023.131333

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The study proposed a cement hydration model based on multiphase voxels and a novel dissolution rate to simulate the hydration of a carbon nanotube (CNT)-reinforced cement paste. The proposed multiphase voxels and dissolution rates were validated by considering accelerated or delayed hydration owing to CNTs and superplasticizers. The model can simulate the formation of low-density and high-density calcium silicate hydrates (CSHs) using multiphase voxels and was validated using previous experimental data for cement pastes containing 0.05-0.25 wt% CNTs. The simulation results, including those on the heat flow and heat of hydration, are consistent with the experimental results.

引用

页数：18

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