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Post-tensioned concreting: its suitability for and acceptability in Sri Lanka

Hewa Siliyange Athushla Madhubhashana (Department of Building Economics, University of Moratuwa, Moratuwa, Sri Lanka)
B.A.K.S. Perera (Department of Building Economics, University of Moratuwa, Moratuwa, Sri Lanka)
Colombapatabendige Savindi Ranthika Perera (Department of Building Economics, University of Moratuwa, Moratuwa, Sri Lanka)

Journal of Engineering, Design and Technology

ISSN: 1726-0531

Article publication date: 28 March 2019

Issue publication date: 5 August 2019

Abstract

Purpose

Many countries have started to use post-tensioned (PT) concrete because of its sustainability and low cost. However, it is not quite popular in Sri Lanka as the required knowhow and technology are not available within the country. By introducing PT concrete to the country, unwanted costs and time overruns could be eliminated from the construction projects. This paper, therefore, aims to identify the suitability and acceptability of PT concreting for/in Sri Lanka.

Design/methodology/approach

An extensive literature review was first carried out to gather knowledge on PT concreting. The four case studies that followed it included eight semi-structured interviews and a document review. Ten expert interviews were conducted finally to strengthen the findings of the literature review and case studies. Cross-case analysis and NVivo 11 content analysis software were used to analyze the data gathered.

Findings

Findings reveal that PT concreting saves cost and time of construction and that it can have a control over the resources required for construction, which makes it environment-friendly. PT concreting allows thinner concrete sections, extended spans, stiffer walls that resist lateral loads and stiffer foundations that resist the effects of shrinking and swelling soils.

Originality/value

It is found that PT concreting is more suitable for the construction industry in Sri Lanka than traditional concreting.

Keywords

Citation

Madhubhashana, H.S.A., Perera, B.A.K.S. and Perera, C.S.R. (2019), "Post-tensioned concreting: its suitability for and acceptability in Sri Lanka", Journal of Engineering, Design and Technology, Vol. 17 No. 4, pp. 719-735. https://doi.org/10.1108/JEDT-06-2018-0102

Publisher

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Emerald Publishing Limited

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