Evaluation of Engineered Cementitious Composites (ECC) Reinforced with Cellulose Nanocrystals
Publication: Tran-SET 2022
ABSTRACT
This study evaluated the influence of cellulose nanocrystal (CNC) addition on the compressive strength of engineered cementitious composites (ECC). CNC was added to ECC mixtures at 0.5, 1.0, 1.5, and 2.0 wt.% of cement. CNC was synthesized from rice husk following an acid hydrolysis process. Transmission electron microscope (TEM) and X-ray diffraction (XRD) were carried out to characterize CNC nanocrystals. A compression test was performed to analyze the properties of ECC mixtures. TEM results showed that the length of CNC was in the range of 76–150 nm. The XRD results also showed a 55% crystallinity index in the developed CNC. Moreover, the highest compressive strength of 43.1 MPa was obtained at 2.0 wt.% of CNC, which was higher than normal concrete strength, i.e., 30 MPa.
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Tran-SET 2022
Pages: 85 - 92
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Published online: Dec 13, 2022
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