Assessment of concrete mixtures for durability design of concrete in marine environments

Search Swinburne Research Bank

Home

List of Titles

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/222017

Check Swinburne's subscriptions for full text availability

Title: Assessment of concrete mixtures for durability design of concrete in marine environments
Author(s): Aly, Tarek; van Zyl, Gideon; Sanjayan, Jay
Abstract: This paper reports the findings of a study undertaken to investigate the effect of concrete mixture proportions on the properties of concrete for the assessment of concrete durability in a marine environment. Three binder types, 100% general purpose Portland cement (Type GP), 65% slag blended cement and 30% fly ash blended cement, each blended with different proportions of condensed silica fume (SF), were investigated. Various chemical admixtures combined with and without permeability and/or shrinkage reducing admixtures were used to produce normal and super workable concrete mixes with fixed low water to binder ratios. Several laboratory tests for assessing water permeability (DIN 1048), initial and secondary Sorpitivity (ASTM C1585), water absorption (BS 1881-122), rapid chloride permeability (ASTM C1202), chloride ion diffusion coefficient (NT Build 433) and drying shrinkage (AS1012.13) were conducted to ascertain the effect of admixtures on the hardened and plastic properties of concrete. The compressive concrete strength has been determined in accordance to AS1012 at 3, 7, 28 and 56-day for all mixes. Analysis of the test results revealed some guidance for concrete mix designers to follow in order to achieve the durability parameters required for marine environments.
Publication type: Conference paper
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Sustainable Infrastructure
Source: Proceedings of 'Concrete 2011: Building a Sustainable Future', the 25th Biennial Conference of Concrete Institute of Australia, Perth, Australia, 12-14 October 2011, paper no. 35.2
Publication year: 2011
Keyword(s): Absorption; Chloride ion diffusion; Fly ash; Rapid chloride permeability; Slag; Shrinkage; Silica fume; Sorpitivity; Water permeability
Publisher: Concrete Institute of Australia
Publisher URL: http://www.concrete2011.com.au/
Peer reviewed