New Concern over Alkali-Aggregate Reaction.
Abstract
There are three reasons why there is new concern over alkali-aggregate reaction: (1) The simple cheap precaution of specifying 'low-alkali cement,' and obtaining it at no increase in price over cement not required to be low-alkali, will no longer be widely available. (2) Aggregates not previously regarded as reactive are being found to have reacted in concrete in old structures and to be associated with significant cracking and damage. (3) Serious early damage to concrete structures has occurred in places where it was previously unknown, especially in north Germany. Aggregate sources and rock type are discussed. A re-examination is made of the state of knowledge and the state of the use of knowledge in this area.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1975
- Accession Number
- ADA010641
Entities
People
- Bryant Mather