Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bonding behavior of high-strength lightweight aggregate concrete
The bonding behavior of Lightweight aggregate concrete (LWAC) was investigated experimentally. Pullout tests were carried out to measure the bond strengths of three groups of specimens with the compressive strength levels of 60, 40 and 20 MPa, respectively. Measurements were performed in parallel on the normal weight concrete specimens with the same levels of compressive strengths for comparisons. Test results have shown that the difference of the bond failure pattern between the LWAC and normal weight concrete is significant as the compressive strength of concretes is less than 40 MPa. The corresponding bond strengths of LWAC are relatively lower than those of the normal weight concrete. As the compressive strength of concretes is relatively high (> 40 MPa), the bond failure pattern of normal weight concrete is similar to that of LWAC. The bond strengths of LWAC will be higher than those of normal weight concrete because it possesses higher mortar strength. Finally, the use of stirrups leads to about 20 % increase of the bond strength for both concretes at any strength levels.
Bonding behavior of high-strength lightweight aggregate concrete
The bonding behavior of Lightweight aggregate concrete (LWAC) was investigated experimentally. Pullout tests were carried out to measure the bond strengths of three groups of specimens with the compressive strength levels of 60, 40 and 20 MPa, respectively. Measurements were performed in parallel on the normal weight concrete specimens with the same levels of compressive strengths for comparisons. Test results have shown that the difference of the bond failure pattern between the LWAC and normal weight concrete is significant as the compressive strength of concretes is less than 40 MPa. The corresponding bond strengths of LWAC are relatively lower than those of the normal weight concrete. As the compressive strength of concretes is relatively high (> 40 MPa), the bond failure pattern of normal weight concrete is similar to that of LWAC. The bond strengths of LWAC will be higher than those of normal weight concrete because it possesses higher mortar strength. Finally, the use of stirrups leads to about 20 % increase of the bond strength for both concretes at any strength levels.
Bonding behavior of high-strength lightweight aggregate concrete
Chen, How-Ji (Autor:in) / Huang, Chung-Hur (Autor:in) / Kao, Zhang-Yu (Autor:in)
2002
12 Seiten, 8 Bilder, 1 Tabelle, 8 Quellen
Aufsatz (Konferenz)
Englisch
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