State-of-the-art of the Australian thin bed concrete structural masonry

Dhanasekar, Manicka, Thamboo, Julian, Nzir, Shaid, Nardone, Arlene, & McGoldrick, Tim (2013) State-of-the-art of the Australian thin bed concrete structural masonry. In Dao, Vinh & Dux, Peter (Eds.) Proceedings of the 26th Biennial Concrete Institute of Australia's National Conference (Concrete 2013), Concrete Institute of Australia, Gold Coast Convention and Exhibition Centre, Gold Coast, Queensland, pp. 1-10.

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With a view to minimising the spiraling labour costs, the concrete masonry industry is developing thin layer mortar technology (known as thin bed technology) collaboratively with Queensland University of Technology. Similar technologies are practiced in Europe mainly for clay brick masonry; in the UK thin layer mortared concrete masonry has been researched under commercial contract with limited information published. This paper presents numerous experimental data generated over the past three years. It is shown that this form of masonry requires special drymixed mortar containing a minimum of 2% polymer for improved workability and blocks with tighter height tolerance, both of which might increase the cost of these constituent materials. However, through semiskilled labour, tools to dispense and control the thickness of mortar and the associated increase in productivity, reduction to the overall costs of this form of construction can be achieved. Further the polymer mortar provides several advantages: (1) improved sustainability due to dry curing and (2) potential to construct mortar layers of 2mm thickness and (3) ability for mechanisation of mortar application and control of thickness without the need for skilled labour.

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ID Code: 70203
Item Type: Conference Paper
Refereed: Yes
Keywords: Concrete Masonry, Height Tolerance of Concrete Blocks, Polymer Mortar, Thin Layer Mortared Masonry, Masonry Design & Construction
ISBN: 9781877040733
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 15 Apr 2014 02:05
Last Modified: 18 Jun 2015 02:09

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