Influence of thermal cycles on the fracture properties of fiber reinforced polymer concrete

被引：0

作者：

Departamento de Engenharia Mecânica e Gestão Industrial, Instituto de Engenharia Mecânica e Gestão Industrial, Universidade do Porto, Rua do Barroco, 174-214, Leça do Balio, Portugal ^{[1
]}

机构：

[1] Departamento de Engenharia Mecânica e Gestão Industrial, Instituto de Engenharia Mecânica e Gestão Industrial, Universidade do Porto, 174-214, Leça do Balio, Rua do Barroco

来源：

J Polym Eng | 2006年 / 6卷 / 605-616期

关键词：

Fiber reinforced polymer concrete; Freeze-thaw cycles; Polymer concrete;

D O I：

10.1515/POLYENG.2006.26.6.605

中图分类号：

学科分类号：

摘要：

In this study the fracture behaviour of fiber reinforced polymer concrete, subjected to freeze-thaw and thermal degradation, is discussed in order to compare the behavior of this material with conventional cement concrete. The specimens were subjected to freeze-thaw and higher temperature cycles in a climatic chamber and then tested according to RILEM standards. Evaluation of the stress intensity factor, Kic, and of the critical crack tip opening displacement CTODc, was conducted with the Two Parameter Method (TPM). The fracture energy, Gf, of the specimens was also evaluated. Polymer concrete was reinforced with short glass and carbon fiber with 1% and 2% in mass respectively to determine whether the reinforcement increases the performance of the material. Unlike positive thermal cycles, which affect the material properties, freeze-thaw cycles do not deteriorate the material properties significantly.

引用

页码：605 / 616

页数：11

共 13 条

[1] Junjian C., Vipulanandan C., Behavior of carbon fiber polymer concrete, CIGMAT 2000, (2000)
[2] Griffiths R., Ball A., An assessment of the properties and degradation behaviour of glass-fibre-reinforced polyester polymer concrete, Composites Science and Technology, 60, pp. 2474-2753, (2000)
[3] Bubani M., Soraru G., Tasssone P., Mechanical durability of a polymer concrete: A vickers indentation study of the strength degradation process, Proceedings of 5th International Congress on Polymers in Concrete, (2001)
[4] Letsch R., Behaviour of polymer mortars at constant and changing temperatures, Proceedings of 5th International Congress on Polymers in Concrete, (2001)
[5] Reis J.M.L., Ferreira A.J.M., Fracture properties of polymer concrete, Proceedings of 8th Portuguese Conference on Fracture, pp. 417-421, (2002)
[6] Reis J.M.L., Ferreira A.J.M., Fracture behavior of glass fiber reinforced polymer concrete, Polymer Testing, 22, 2, pp. 149-153, (2003)
[7] Shah S.P., Carpinteri A., Notched beam test: Mode i fracture toughness, Fracture Mechanics Tests Methods for Concrete, pp. 3-10, (1991)
[8] Fracture mechanics of concrete. Determination of fracture energy of mortar and concrete by means of three point bend tests on notched beams, RILEM Recommendation, Materials and Structures, 18, 106, pp. 285-296, (1985)
[9] Planas J., Elices M., Towards a Measure of Gf: An Analysis of Experimental Results, Fracture Toughness and Fracture Energy of Concrete, pp. 381-390, (1986)
[10] Tavares C.M., Ribeiro M.C., Figueiredo M., Ferreira A.J.M., Fernandes A.A., Bending characteristics of resin concrete, Materials Research, 6, (2003)

← 1 2 →