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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: Strength Properties of Concrete Made with Granular Material
Author(s): R. Sakurada, K. Terui, M. Miyamoto, A. Ferrari, N. Sasaki, and A. Ishii
Publication: Materials Journal
Appears on pages(s): 147-153
Keywords: fracture energy; PVA fibers; recycled aggregate; remaining concrete; returned concrete; shear performance; tensile strength
Abstract:This paper attempts to manufacture a kind of recycled aggregate by transforming remaining concrete at fresh state into a granular material (GM) in a field test, and reports on the strength characteristics of concrete made with GM. The GM contains fine aggregate (≤ 5 mm [0.20 in.]) and coarse aggregate (5 to 20 mm [0.20 to 0.79 in.]). The fresh ready mixed concrete was used in this field test in substitution of the remaining concrete that was trucking back from the construction site to a concrete mixing plant. The 28-day compressive strength of concrete made with GM can be achieved exceeding 30 MPa (4350 psi), which is the desirable strength for nonstructural concrete. The reinforcement with 1.5% polyvinyl alcohol (PVA) fibers enhanced the splitting tensile and flexural strengths of concrete made with GM by 35% and 21% as compared with the GM concrete without PVA fibers, respectively. The peak load at diagonal shear crack of reinforced concrete (RC) beam without stirrups, made with GM and 1.0% PVA fibers, is 29% higher than that of the control reinforced concrete beam without fibers.
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