Corrosion

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Characterising the Bay of Plenty

By Zhengwei Li 1 April 2017, Build 159

While the Bay of Plenty is enviably sunny and booming, its industrial, marine and volcanic environment is challenging for building materials. BRANZ has started mapping corrosivity across the region to help designers select appropriate materials.

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Why timber eats metal

By Zhengwei Li 1 October 2017, Build 162, Feature article

BRANZ has been investigating what can make metal fasteners and fixings corrode when used in timber. Understanding this can lead to selection of compatible components and less risk of premature failures.

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Concerns with B2 Durability

By Raed El Sarraf 1 October 2017, Build 162, Feature article

The guidance for using structural steel and other metals in Building Code clause B2 Durability is limited, and no Acceptable Solutions are offered. Perhaps there’s a need for an addendum to be incorporated.

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Materials in geothermal areas

By Zhengwei Li 1 April 2017, Build 159

BRANZ monitoring of metallic building materials in Rotorua has improved understanding of their performance in geothermal environments. Continuing work will help building design, construction and maintenance in these areas.

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