Preventing concrete pollution
Concrete wastewater can be lethal to aquatic life and can land those responsible with a fine, so make sure you keep it out of stormwater.
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By Nigel Clarke – 1 December 2009, Build 115
Concrete wastewater can be lethal to aquatic life and can land those responsible with a fine, so make sure you keep it out of stormwater.
By David Hindley – 1 April 2022, Build 189, Feature article
World-class research, award-winning designs and a new mindset are all helping New Zealand manufacturers, architects and designers take a fresh approach to those most fundamental of building materials – concrete, steel and timber.
By Graeme Beattie – 1 December 2011, Build 127
Lessons from the Canterbury earthquakes mean that all concrete floor slabs must now be reinforced with steel bars or welded mesh with a reasonable degree of ductility.
By Robert Jansson – 1 June 2014, Build 142, Feature article
Fire spalling can drastically reduce the fire resistance of a concrete structure. During a PhD study, significant differences in spalling behaviour of concrete were found under different test conditions.
By Derek Chisholm – 1 December 2012, Build 133
Whether it is surplus material or demolition waste, the reuse of concrete is actively encouraged. A best practice guide outlines how to do this.
1 August 2013, Build 137
One of the keys to good-quality cured concrete is correct vibration after it’s poured. This compacts it and consolidates the mix by removing trapped air. But how do you get it right?
By Neil Lee – 1 February 2006, Build 92, Feature article
Fresh concrete contains significiant water which evaporates over time. Installing floor coverings on the floor slab before it’s dry is a recipe for disaster, so how do you know if it’s dry enough?
By Derek Chisholm – 1 February 2016, Build 152
There are plenty of things to consider when laying a concrete floor slab. Timing, the right amount of water and aftercare are all important.
By Trevor Pringle – 1 August 2013, Build 137, Feature article
All concrete is not the same. By considering four key factors, you can specify and create quality dense reinforced concrete that will pass the test of time outside.
By Chris Munn, Dr Dave Dowdell – 1 October 2014, Build 144
Allied Concrete’s efforts in developing an EPD provide lessons for other companies to learn from and are timely with the Australasian EPD® Programme’s launch.