By Mohamed Mostafa
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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.
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By Angela Liu
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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.
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By Alide Elkink
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1 October 2013, Build 138
As a result of the Canterbury earthquakes, there have been changes to the requirements for concrete floor slabs. Are you up to date?
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By Graeme Beattie
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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.
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By Alide Elkink
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1 June 2009, Build 112
Natural drying of a concrete slab will take several months and it’s important to ensure fixed floor coverings aren’t installed too soon.
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By Ian Cox-Smith
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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.
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By Neil Lee
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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?
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1 August 2005, Build 89
Concrete shrinks as it sets and will continue to shrink for at least 12 months after placing, depending on drying conditions. About 50% of the shrinkage occurs within the first 4 months.
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