The effect of air entraining agent on cement-based magnetorheological pastes

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Date

2022-08-12

Authors

Kim, Junhyung

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Abstract

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

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