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Abstract
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Article Information:
Effect of Pour Size on Concrete Placing Productivity in Nigeria
Olaoluwa Olatunde, Ojo Stephen Okunlola and Adesanya David Abiodun
Corresponding Author: Olaoluwa Olatunde
Submitted: September 07, 2011
Accepted: September 30, 2011
Published: June 15, 2012 |
Abstract:
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Pour size as one of the site factors affecting concreting was examined to determine its effects on
concreting productivity. A total of 167 separate concrete pours were observed on 25 building construction sites
in Lagos, Nigeria,comprising 35 pours placed by crane and skip; 26 pours placed by dumper; 58 pours placed
by wheelbarrow; 37 pours placed by head pan; and 11 pours placed jointly by pump, wheelbarrow and head
pan. Data collected from the daily concrete pours were analyzed to determine operational productivity rates.
The relationship between concreting productivity and pour size was examined using regression analyses to
develop a model relating productivity to pour size. The results showed that irrespective of placing method,
productivity generally increased by 1.1 m3/h for every 10 m3 increase in pour size. It was recommended that
the obtained index of productivity increase per pour size be standardised for use in improving on-site
productivity in the Nigerian construction industry.
Key words: Concreting, Nigeria, placing method, productivity, volume, ,
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Cite this Reference:
Olaoluwa Olatunde, Ojo Stephen Okunlola and Adesanya David Abiodun, . Effect of Pour Size on Concrete Placing Productivity in Nigeria. Research Journal of Applied Sciences, Engineering and Technology, (12): 1649-1658.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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