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Microstructures and mechanical properties of hemp fabric reinforced organoclay–cement nanocomposites
Highlights Synthesis of hemp fabric reinforced nanoclay–cement nanocomposites. Mechanical properties increased with addition of nanoclay and hemp. 1wt% nanoclay was optimum in enhancing strength and toughness.
Abstract Cement eco-nanocomposites reinforced with hemp fabric (HF) and nanoclay platelets (Cloisite30B) are fabricated and investigated in terms of XRD, SEM, physical and mechanical properties. Results indicated that the mechanical properties generally increased as a result of the addition of nanoclay into the cement matrix with and without HF. An optimum replacement of ordinary Portland cement by 1wt% nanoclay is concluded from the current work. It is found that, 1wt% nanoclay decreases the porosity and also significantly increases the density, flexural strength and fracture toughness of cement composite and HF reinforced nanocomposite. The microstructural analysis results indicate that the nanoclay behaves not only as a filler to improve microstructure, but also as an activator to promote pozzolanic reaction which modified cement matrix and improved the hemp fabric-matrix adhesion. The failure micromechanisms and energy dissipative processes in HF reinforced cement composite and nanocomposite are discussed in terms of microstructural observations.
Microstructures and mechanical properties of hemp fabric reinforced organoclay–cement nanocomposites
Highlights Synthesis of hemp fabric reinforced nanoclay–cement nanocomposites. Mechanical properties increased with addition of nanoclay and hemp. 1wt% nanoclay was optimum in enhancing strength and toughness.
Abstract Cement eco-nanocomposites reinforced with hemp fabric (HF) and nanoclay platelets (Cloisite30B) are fabricated and investigated in terms of XRD, SEM, physical and mechanical properties. Results indicated that the mechanical properties generally increased as a result of the addition of nanoclay into the cement matrix with and without HF. An optimum replacement of ordinary Portland cement by 1wt% nanoclay is concluded from the current work. It is found that, 1wt% nanoclay decreases the porosity and also significantly increases the density, flexural strength and fracture toughness of cement composite and HF reinforced nanocomposite. The microstructural analysis results indicate that the nanoclay behaves not only as a filler to improve microstructure, but also as an activator to promote pozzolanic reaction which modified cement matrix and improved the hemp fabric-matrix adhesion. The failure micromechanisms and energy dissipative processes in HF reinforced cement composite and nanocomposite are discussed in terms of microstructural observations.
Microstructures and mechanical properties of hemp fabric reinforced organoclay–cement nanocomposites
Hakamy, A. (author) / Shaikh, FUA (author) / Low, I.M. (author)
Construction and Building Materials ; 49 ; 298-307
2013-08-20
10 pages
Article (Journal)
Electronic Resource
English
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