Sulphate-generated heave – the effect on structures in Dublin

Author: P. Finnegan (Dublin City Council), P. M. Forde (DBFL Consulting Engineers, Dublin) and A. B. Hawkins (Engineering Geological Consultant, Bristol)

Date published

1st May 2014

First published: 1st May 2014

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Sulphate-generated heave – the effect on structures in Dublin

The Structural Engineer
Sulphate-generated heave – the effect on structures in Dublin
Date published

1st May 2014

First published

1st May 2014

Author

P. Finnegan (Dublin City Council), P. M. Forde (DBFL Consulting Engineers, Dublin) and A. B. Hawkins (Engineering Geological Consultant, Bristol)

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now

During remediation of distressed buildings in Dublin, horizontal cracks more than 20mm wide have been seen in the concrete block sub-structure walls. When pyrite-rich calcareous aggregate oxidises beneath a ground floor slab, it can raise and crack the concrete floor. In addition, it has been found that when tightly compacted fill expands, it may grip the substructure walls such that the whole super-structure is lifted off these support walls.

Additional information

Format:
PDF
Pages:
7
Publisher:
The Institution of Structural Engineers

Tags

Technical Issue 5

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