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Mechanical properties of lightweight polymer concrete with steel fiber
This study was performed to evaluate the mechanical properties of steel fiber reinforced lightweight polymer concrete. An unsaturated polyester resin, synthetic light-weight aggregates, heavy calcium carbonate and steel fiber were used. The following conclusions were drawn. (1) Unit weight ranged between 1.020 and 1.160 kg/m3 and was largely dependent upon the fiber content ratio. It was dependent upon the magnitude of the concrete strengths. (2) Compressive and splitting tensile strengths ranged between 26.38 MPa and 34.52 MPa and 3.33 MPa and 6.08 MPa, respectively. It increased compressive strength by 9.3 % to 30.9 % and splitting tensile strength by 26.7 % to 82.6 % compared to that of lightweight polymer concrete without steel fiber content, respectively. (3) Load-deflection curve observed that the flexural load and deflection were increased with the increase of fiber content. This may be attributed to the influence of the crack-arresting effect of the fibers. (4) Toughness was increased with an increase in fiber content. The increase in the value of the flexural fracture toughness is due to fiber pull-out and fiber debonding in the fracture process.
Mechanical properties of lightweight polymer concrete with steel fiber
This study was performed to evaluate the mechanical properties of steel fiber reinforced lightweight polymer concrete. An unsaturated polyester resin, synthetic light-weight aggregates, heavy calcium carbonate and steel fiber were used. The following conclusions were drawn. (1) Unit weight ranged between 1.020 and 1.160 kg/m3 and was largely dependent upon the fiber content ratio. It was dependent upon the magnitude of the concrete strengths. (2) Compressive and splitting tensile strengths ranged between 26.38 MPa and 34.52 MPa and 3.33 MPa and 6.08 MPa, respectively. It increased compressive strength by 9.3 % to 30.9 % and splitting tensile strength by 26.7 % to 82.6 % compared to that of lightweight polymer concrete without steel fiber content, respectively. (3) Load-deflection curve observed that the flexural load and deflection were increased with the increase of fiber content. This may be attributed to the influence of the crack-arresting effect of the fibers. (4) Toughness was increased with an increase in fiber content. The increase in the value of the flexural fracture toughness is due to fiber pull-out and fiber debonding in the fracture process.
Mechanical properties of lightweight polymer concrete with steel fiber
Sung, C.Y. (author) / Youn, J.N. (author)
2004
7 Seiten, 2 Bilder, 8 Tabellen, 7 Quellen
Conference paper
English
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