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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Bio-Inspired, Internally Cured Cellulose Fiber Reinforced Concrete for Next Generation Infrastructure
Author(s): N. Banthia, O. Onuaguluchi, and D. Cui
Publication: Special Publication
Appears on pages(s):
Keywords: concrete, internal curing, cellulose fiber, desorption, shrinkage, porosity, CT scans
Abstract:One very effective way of enhancing durability of concrete is by refining the microstructure using internal curing. This paper will describe some novel insights into providing internal curing in concrete using inexpensive and recycled engineered cellulose fiber (CF). Such bio-inspired materials also provide self-healing and reduce the continual need for repair and intervention. This study investigates the effect of 0 kWh/t, 100 kWh/t and 185 kWh/t degree of cellulose pulp refinement on fiber morphology, fiber water retention and desorption and fresh and hardened properties of cement composites containing these fibers as internal curing agents. 3-D Dual Scan Computer Tomography (CT) was also used to understand the refinement due to CF addition. It was concluded that CF addition resulted in a higher degree of hydration, pore refinement and interface densification. Results also show that CF can be further refined mechanical to increase the surface fibrillation and this may result in significant further improvement in the internal curing performance.
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