Weathering effects on themanufacturing process of GRC material

• Autorzy: Ho C. Y. , Lee Y.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Weathering effects on the weight and shrinkage strain of GFRC composite material are experimentally investigated in this paper. The five samples with different percents of glass fibers are chosen to test the effectsof humidity on the deformation of GRC. Design/methodology/approach: These samples are exposed to the environment with different humidity. Findings: GRC was considered for the fabrication of 30m high telecommunication towers. Other structural suchas pedestrian bridges, roof elements and floor slabs were also studied. Practical implications: The experimental results show that the effect of weight change on strain at dryenvironment is more significant than wet environment, and GFRC with 5% of glass fiber obviously reduces theweight change and strain. Originality/value: In this paper the variation of absorbing water rate, edabsorbing water rate, shrinkage strain, weight change, temperature, expansion strain and temperature change rate of GRC material with time wasexperimentally investigated.

Słowa kluczowe

EN

composites; GRC; humidity; strain

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 2
• Strony: 241--246
• Opis fizyczny: Bibliogr. 8 poz., wykr.

Twórcy

autor

Ho C. Y.

autor

Lee Y.

• Department of Mechanical Engineering, Hwa Hsia Institute of Technology, Taipei 235, Taiwan,

Bibliografia

• [1] F. Branco, J. Ferreira, L. Calado, Structural Behaviour of Prestrssed GRC Towers, Proceedings of the 12 International Congress of the Internation Glassfibre Reinforced Concrete Association, Dulin, 2001, 13-23.
• [2] F. Branco, J. Ferreira, J. Brito, J. Santos, Building Structures with GRC, Proceedings of the CIB Word Building Congress, Wellington, New Zealand, 2001.
• [3] F. Branco, J. Ferreira, J. Brito, J. Santos, The Use of GRC as a Structural Material, Proceedings of the Symposium „Mechanics of Composite Materials and Structures”, Coimbra, 1999.
• [4] J. Viegas, Production Control of GRFC Structural Components in Portugal, Proceedings of the 12 International Congress of the Internation Glassfibre Reinforced Concrete Association, Dulin, 2001, 33-40.
• [5] D. Cian, B. Della Bella, Structural Applications of GRC for Precast Floors, Proceedings of the 12th International Congress of the Internation Glassfibre Reinforced Concrete Association, Dulin, 2001, 41-52.
• [6] Z. Guan, Y. Jiang, Y. Tanabasi, H. Huang, Reinforcement Mechanics of Passive Bolts in Conventional Tunnelling, International Journal of Rock Mechanics and Mining Science 44 (2007) 625-636.
• [7] P. Purnell, J. Beddows, Durability and Simulated Ageing of New Matrix Glass Fibre Reinforced Concrete, Cement and Concrete Composites 27 (2005) 875-884.
• [8] P. N. Balaguru, S. P. Shah, Fiber-Reinforced Cement Composites, McGraw-Hill, Inc., 1992.