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Engineering (Bio)Materials through Shrinkage and Expansion

Mian Wang1, Wanlu Li1, Guosheng Tang1

  • 1Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA.

Advanced Healthcare Materials
|June 17, 2021
PubMed

Keywords:
3D fabrication4D fabricationbiomedical applicationshape-shiftingsize-shiftingstimuli-responsive

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Shrinkage in Concrete01:27

Shrinkage in Concrete

Shrinkage in concrete is primarily due to water loss from evaporation, hydration of cement, or carbonation, leading to a reduction in volume. The volumetric contraction results in volumetric strain in concrete. However, in practice, shrinkage is measured as linear strain, which is one-third of the volumetric strain.
When concrete is still in its plastic state, it can undergo a decrease in volume by about 1% of its absolute volume. This decrease is known as plastic shrinkage. It arises either...
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