Study on the measures of durability for the tropical marine bridge based on British Standard

Author(s): S. Liu, L. Q. Tu, S. K. Li, M. Q. Qin
Paper category: Proceedings
Book title: Proceedings of the Seventh International Conference on Concrete under Severe Conditions – Environment and Loading
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 501-512
Total Pages: 12
Language : English

Abstract: Penang second bridge in Malaysia is designed as a cable-stayed bridge based on British specification. The reinforced concrete structure elements involving spun pile, steel pile, bored pile, pile cap, pier, pylon, box girder and so on are complex and massive. The service environment of these concrete elements is tropic and marine. Workability, hydration heat and permeability of concrete are the keys for the quality control of concrete. For the requirement of service life of 120 years for this bridge, some measures improving the durability have been proposed in this article. Environmental category and action, condition of raw materials in local, characteristics of elements and requirements of durability indexes for British standard are introduced. Especially, a comparison between British and China’s specification has been made in this article. Mix proportion has been optimized and pulverize fuel ash cement-GGBS-silica fume binder is adopted to prepare mixes for different structure elements. The results indicate that the total mass of cementitious materials is only 410 kg/m3 for pylon concrete of G50. The service life for different structure has been predicted based on the Fick’s second Law, and which the reliability of boundary condition has been taken into account. Finally, the measures of durability for Penang second bridge have been set up.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00