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Impact of multi-walled carbon nanotubes on wood sawdust extract cement mortar

    Ekaterina Karpova Affiliation
    ; Gintautas Skripkiūnas Affiliation
    ; Grigory Yakovlev Affiliation
    ; Asta Kičaitė Affiliation

Abstract

It is well known that organic waste materials deteriorate the performance of concrete. The impregnation of organic aggregates and their application in combination with other chemical admixtures and mineral additives are used in order to improve the concrete properties in case of their modification by organic components. The current research is focused on the evaluation of impact of multi-walled carbon nanotubes (MWCNT) on the properties of cement systems prepared based on wood sawdust extract (WSE). The setting time, density, consistency, flexural and compressive strength, water absorption tests were undertaken. The retardation effect of (WSE) on the initial and final setting time of cement paste was observed. The additional modification of cement paste with WSE by MWCNT in the dosage of 0.005% by weight of cement (bwoc) did not show the significant changes in initial and final setting time. The application of MWCNT in the dosage of 0.005% bwoc contributed to the increase of early strength of cement mortar prepared with WSE.


First published online 14 April 2020

Keyword : waste materials, concrete, nanomodification, carbon nanotubes

How to Cite
Karpova, E., Skripkiūnas, G., Yakovlev, G., & Kičaitė, A. (2019). Impact of multi-walled carbon nanotubes on wood sawdust extract cement mortar. Engineering Structures and Technologies, 11(4), 119-124. https://doi.org/10.3846/est.2019.12334
Published in Issue
Dec 31, 2019
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This work is licensed under a Creative Commons Attribution 4.0 International License.

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