Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Properties of high-strength porous concrete
A new method of producing high-strength porous concrete has recently been developed in Japan. In this method, porous concrete is produced by coating the coarse aggregates with a high-strength mortar, then applying vibration to fuse them. Porous concrete produced by this method has the following properties. It has a continuous void system with a volume-to-total-void ratio exceeding 85 % and a compressive strength of 20 MPa or greater when water permeability is 2 cm/sec. The porous concrete produced exhibited good durability in freezing and thawing tests (ASTM C666, Procedure B) and, while the amount of drying shrinkage is about 60 %, or smaller than that of conventional concrete, such shrinkage occurring very rapidly.
Properties of high-strength porous concrete
A new method of producing high-strength porous concrete has recently been developed in Japan. In this method, porous concrete is produced by coating the coarse aggregates with a high-strength mortar, then applying vibration to fuse them. Porous concrete produced by this method has the following properties. It has a continuous void system with a volume-to-total-void ratio exceeding 85 % and a compressive strength of 20 MPa or greater when water permeability is 2 cm/sec. The porous concrete produced exhibited good durability in freezing and thawing tests (ASTM C666, Procedure B) and, while the amount of drying shrinkage is about 60 %, or smaller than that of conventional concrete, such shrinkage occurring very rapidly.
Properties of high-strength porous concrete
Fujiwara, H. (Autor:in) / Tomita, R. (Autor:in) / Okamoto, T. (Autor:in) / Dozono, A. (Autor:in) / Obatake, A. (Autor:in)
1998
15 Seiten, 8 Bilder, 1 Tabelle, 10 Quellen
Aufsatz (Konferenz)
Englisch
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