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.
Concrete
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Reinventing basic materials
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.
Waste glass in concrete
By Mary Pauwels – 1 October 2009, Build 114, Feature article
A scarcity of locally produced construction aggregate and growing stockpiles of waste glass are being addressed in a unique building project currently under construction in South Auckland.
Tied and tested
1 April 2004, Build 81
Need a few tips on the best way to tie your wires?
Slab-edge insulation
By Trevor Pringle – 1 June 2014, Build 142
A BRANZ slab-edge insulation detail has been revised, minimising the width of the thermal break.
Concrete commitment to innovation
By Adam Leach – 1 August 2015, Build 149
Concrete is an ancient material, but new types are emerging as engineers develop self-healing, self-cleaning and even bendable and translucent versions.
SCMs reduce concrete emissions
By Dr James Mackechnie – 1 April 2022, Build 189, Feature article
New research shows that using natural supplementary cementitious materials (SCMs) with Portland cement can maintain the strength and durability of concrete while reducing carbon emissions. Changes to cement standards may be needed, however, before SCM use can grow.
Timber aids insulation of slab-on-ground floors
By Ian Cox-Smith – 1 June 2007, Build 100
BRANZ has been researching how to improve the insulation of concrete slab-on-ground floors and has found an alternative method which is practical and improves performance.
Formwork
By Des Molloy – 1 October 2010, Build 120
Many builders have had a concrete and formwork failure that they would rather forget. It’s an area of construction where listening to the wisdom of experienced tradespeople is vital, but the following pointers may also help.
Cementing history
By Nigel Isaacs – 1 June 2008, Build 106
First invented in Roman times, cement has undergone a chemical revolution to deliver the Portland cement used extensively today.
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