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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: Flexural Crack Width of Reinforced Concrete Beams with Roof Tile Waste Aggregate
Author(s): Mwangi Martin Macharia, Yuko Ogawa, Katsumi Yamaguchi, Kenji Kawai, and Ryoichi Sato
Publication: Special Publication
Appears on pages(s): 83-102
Keywords: porous ceramic-roof material waste aggregate; portland blast furnace slag cement-type B; internal curing; flexural crack width
Abstract:Flexural crack widths of Portland blast furnace slag cement-type B RC beams internally cured with porous ceramic-roof material waste aggregate (PCA) were experimentally investigated. The water-cementitious materials ratios (W/CM) were 0.50, 0.35 and the replacement ratios of porous ceramic coarse aggregate (PCCA) were 0, 10%, 20% and 0, 20%, 30% respectively, of the total coarse aggregate volume. In addition, the effects of fine aggregate replacement of 12% with porous ceramic fine aggregate (PCFA) were investigated in the case of W/C=0.50. The results showed that PCA contributed to improved compressive, splitting tensile strengths and fracture energies independent of the replacement ratio of PCA and W/CM. In addition, the flexural crack widths in the case of W/C=0.50 were almost the same as those of the reference beam, while in the case of W/C=0.35, the internal curing effect of PCA contributed to decrease in the flexural crack width, independent of the replacement ratio.
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