Keywords
Citation
(2001), "Method of measurement", Facilities, Vol. 19 No. 1/2. https://doi.org/10.1108/f.2001.06919aab.019
Publisher
:Emerald Group Publishing Limited
Copyright © 2001, MCB UP Limited
Method of measurement
Method of measurement
Keywords: Construction industry, Concrete, Maintenance
As most construction professionals will know, attempting to pre-determine the depth and area of deteriorated or damaged concrete before breaking out is complete, is not a precise science. This in turn makes it difficult to accurately quantify the volume of work and time needed to complete the project.
Given this scenario, bills of quantities can therefore only be regarded as approximate, with the accuracy of the quantities depending upon the degree of initial survey, sampling and other test data available prior to the contract documents being produced.
It is only by following thorough assessment of the extent of structural deterioration and accurate diagnosis of its causes that a true quantification of concrete repair work is possible, but this continues to be a notoriously difficult area of construction measurement.
It was exactly for this reason that the Concrete Repair Association (CRA) originally produced its now well established "Standard method of measurement for concrete repair". The detailed 44-page document was specifically devised to provide a uniform basis for measuring concrete repair and for fully itemising all aspects of the work involved, but has traditionally carried a £15.00 price tag.
In the interests of assisting the origination of clearer bills of quantities for concrete repair work, however, the association has recently decided to make copies available to professionals free of charge.
The publication deals with the measurement of surface cleaning; surveying; concrete repairs; crack repairs; pore/blow hole fillers; levelling mortars/fairing coats; coatings and resin injection. It also itemises time-related elements such as provision of access and site facilities and includes a useful specimen bill of quantities.
Free copies of the publication can be obtained from CRA, Association House, 235 Ash Road, Aldershot, Hants GU12 4DD. Tel: +44 (0) 1252 321302; Fax: +44 (0) 1252 333901; E-mail: john.fairley@associationhouse.org.uk www.concreterepair.org.uk