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Title: Porous aggregates in concrete
Subtitle: Sandstones from NW England

Ref Code: IP6/04
Authors: R J Collins

Abstract1: Long-term durability studies have been undertaken on concrete made from crushed rock at present little used in concrete, in order to assess the resource potential of these materials and to give specifiers and clients confidence of lifetime performance in structures. Concretes made with porous sandstone aggregates have mostly performed well in resisting frost damage and protecting embedded metal. Aggregates producing poorer performance had high shrinkage and were uneconomic to use because of poor strength development of concrete. However, it is concluded that a significant proportion of sandstones from NW England constitute a valuable resource and no special testing is needed.

Contents: 

 

Year Published: 2004

ISBN: 978-1-86081-694-9

 

Pages: 6

 

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