AASHTO R 80-17 (2021) PDF Download
Standard EN Sample
Standard Practice for Determining the Reactivity of Concrete Aggregates and Selecting Appropriate Measures for Preventing Deleterious Expansion in New Concrete Construction
Also Known As:
The AASHTO R 80-17 (2021) standard provides guidelines on identifying potentially reactive aggregates and selecting appropriate measures to prevent deleterious expansion in concrete. The standard covers both alkali-silica reactive and alkali-carbonate reactive aggregates.
For alkali-silica reactive aggregates, the standard suggests several preventive measures. These include avoiding the use of reactive aggregates altogether, limiting the alkali content of the concrete, using blended cement, incorporating supplementary cementitious materials, or using lithium nitrate as an admixture. These measures can be implemented individually or in combination to minimize the risk of expansion associated with alkali-silica reactivity.
On the other hand, the preventive measures for alkali-carbonate reactive aggregates are limited to simply avoiding the use of these reactive rocks in concrete.
| Language(s) | English |
| File Size | 1.2 MB |
