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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Statistical Modelling of Natural Concretes made with Marine Pozzolans
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Abstract:New Zealand has one major source of fly ash and no steel manufacturing plants that are currently capable of producing blast furnace slag for the manufacture of cement. New Zealand does, however, have an abundant supply of natural pozzolans. Natural pozzolans were used in the construction
of the country’s infra-structure as far back as 70 years ago. Over the past 10 years improved processing techniques and a better understanding of fine powder technology has allowed the commercial development of “highly reactive pozzolans”. A locally processed natural pozzolan is now the preferred concrete durability enhancing agent, achieving comparable performance to that of condensed silica fume. This paper reports on the development of a statistical model for predicting the service life of marine and harbour structures built with concrete containing natural pozzolans. The statistical approach predicts a range of expected times to corrosion initiation, rather than a single value, and allows owners and asset managers to better manage risk in a realistic manner.
Concrete Institute of Australia, International Partner Access.
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