Effect of Air-Entraining Agent on Rheology of Cement-Based Magnetorheological Pastes

被引：0

作者：

Kim, Junhyung ^{[1
]}

Ferron, Raissa Douglas ^{[2
]}

机构：

[1] Minist Natl Def, Def Installat Agcy, Seoul, South Korea

[2] Univ Texas Austin, Austin, TX USA

来源：

ACI STRUCTURAL JOURNAL | 2024年 / 121卷 / 05期

关键词：

air-entraining agent (AEA); magnetorheological (MR) paste; rheology; small-amplitude oscillatory shear (SAOS); smart material; storage modulus; ADMIXTURES; CONCRETE;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Embedding magnetic particles into cement paste produces a smart material in which the rheological properties of the resultant paste can be actively controlled through the use of magnetorheological (MR) principles. This research investigates the rheological behavior of cement-based MR pastes with and without air entrainment to gain a better understanding of the effects of air-entrained bubbles on MR cement pastes. Such information would be critical for the use of such MR pastes in three-dimensional (3-D) concrete printing applications. It is revealed that the incorporation of entrained air increases the MR response, and this effect is related to the bubble-bridge effect.

引用

页码：3 / 12

页数：10

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