Macro-defect-free (MDF) cements

Mojumdar, S. C.; Mazanec, Karel; Drábik, M.

doi:10.1007/s10973-005-7045-5

Cited by 31 publications

(2 citation statements)

References 33 publications

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“…The loads were measured and recorded by software connected to the machine and then converted to compressive and flexural strength according to Eqs. (1) and (2). Four replicates of each test were conducted and average values are reported.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…MDF cements are composite materials obtained by mixing, high shear and hot pressing. Because of the high-speed shear and mixing in the manu-facturing process, MDF cements avoid the large pores and defects caused by the residual air and insufficient mixing, which makes MDF cements have unique properties [2]. Calcium aluminate cement (CAC) and polyvinyl alcohol (PVA) are the most widely utilized materials for the production of MDF cements, and the flexural strength can generally reach 150-300 MPa.…”

Section: Introductionmentioning

confidence: 99%

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The effect of carbon nanotubes on the mechanical and damping properties of macro-defect-free cements

Zhang

et al. 2020

Science and Engineering of Composite Materials

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The effect of CNTs on the mechanical and damping properties of macro-defect-free (MDF) cements was studied, and polyvinyl alcohol (PVA) fibers were also studied as a contrast. It was found that the compressive strength of MDF cements was not significantly affected by the two types of fibers. The CNTs enhanced the flexural strength of MDF, while PVA fibers made negative contribution. The strengthening mechanism of flexural strength of MDF cements by CNTs can be summarized as fiber bridging, crack deflection and fiber slippage. For the damping properties, the proper contents of CNTs and PVA fibers improved the loss factor significantly. The interface transition zone (ITZ) between the PVA fibers and matrix was large, which was favorable for fiber slippage. The damping property of MDF cements with CNTs was mainly due to the slippage between the inner tubes of the CNTs rather than the slippage between the CNTs and matrix.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%