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Title: Porous aggregates in concrete: Jurassic limestones
Subtitle: 

Ref Code: IP9/01
Authors: R J Collins

Abstract1: This Information Paper reports on long-term BRE studies of the durability of concrete made from crushed rock sources that at present are little used in concrete. Such information is needed to assess the resource potential of these materials and to give confidence of lifetime performance in structures. After 20 years of unsheltered outdoor exposure, concretes made with crushed Jurassic limestone aggregates have performed well in resisting frost damage and protecting embedded metal. Also, the porosity of the aggregate reduces the expansive effect of alkali silica reactions.

Contents: 

 

Year Published: 2001

ISBN: 978-1-86081-481-5

 

Pages: 8

 

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