Fulfilling a concrete need
Extensive research at the University of Auckland on carbon fibre-reinforced polymers (CFRP) helps understand how this material can be used for seismic strengthening, increasing existing buildings’ resilience.
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.
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.
Precast concrete floors and earthquakes
By Mohamed Mostafa – 1 February 2020, Build 176, Feature article
Earthquake damaged precast concrete floors are the focus of detailed investigation to help understand the role system response plays on the performance of precast floors. The ultimate goal? To improve building safety and reduce damage.
Precast concrete floors project
By Angela Liu – 1 August 2019, Build 173, Feature article
A national research programme looking into precast concrete floor performance in earthquakes is likely to result in revised guidelines for seismic assessment and retrofit of buildings with precast floors.
Concrete formwork basics
By Concrete New Zealand Inc. – 1 February 2019, Build 170
Concrete can be formed into a variety of intricate shapes with interesting surface finishes, but this relies on quality formwork. Whether using traditional boxing or proprietary formwork, it’s important to get the basics right.
Keeping concrete affordable
By Dr James Mackechnie – 1 December 2018, Build 169
As suitable sand for concrete becomes harder to find, a research programme to review the alkali limits in concrete may also lead to better tests for industry.
Concrete foundation wall reinforcing
By Alide Elkink – 1 August 2018, Build 167
Reinforcing is an integral part of all concrete and concrete masonry. We review NZS 3604:2011 requirements for foundation walls in timber-framed buildings so you can get this right.
Off-the-form concrete surface finishes
By Concrete New Zealand Inc. – 1 April 2018, Build 165
Successful processes to achieve the desired concrete surface finish are now mainstream and can be reproduced by capable tradespeople.
Tolerances tables
By Trevor Pringle – 1 October 2016, Build 156
In Build 155 Within tolerance, we outlined some of the allowable tolerances to work within for a quality result. Here, we’ve summarised that information into convenient tables.
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