Durability Modeling for Enhancing the Service Life of a Building Constructed on a Reclaimed Land in the Sea

Abstract:

In reinforced concrete structures constructed on the coastline of the hypersaline Arabian Gulf water, corrosion of reinforcing steel causes cracking, delamination and spalling of concrete, within a time span of a few years. The King Abdullah Civic Center (KACC), being constructed on a reclaimed land off the coastline in the Eastern region of Saudi Arabia, is a major complex with wharves, quay walls, and breakwater and commercial buildings. To ensure the durability of buildings in the harsh marine environment and to provide a minimum service life of 35 years, a concrete mix in which 70% of Portland cement is replaced by granulated ground blast furnace slag (GGBFS) was recommended based on durability modeling conducted using the software STADIUM^®. Concrete with 70% GGBFS provides for the dual objective of achieving a green concrete and an enhanced service life of the building. Based on durability modelling it was concluded that corrosion inhibitor should be used preferably in the concrete. A detailed experimental program was conducted to assess the durability and strength properties of the 70% GGBFS concrete, with and without corrosion inhibitor. This paper presents the results of experimental investigations and durability modeling conducted for the project. A 70% GGBFS concrete mix without corrosion inhibitor was adopted for the raft foundation and subsequently for the entire building to make it a green concrete building.

• Periodical: Key Engineering Materials (Volume 711)
• Pages: 622-629
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.711.622
• Online since: September 2016
• Authors: K. Rahman Muhammad*, Ibrahim Mohammed, Al Omran Zaki, S. Barry Mohammed, Al Nahdi Fahad
• Keywords: Chloride Attack, Drying Shrinkage, Durability, GGBFS, Inhibitors, Ion Migration, Marine Environment, Service Life, STADIUM^®

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