| EPSRC Reference: |
GR/J44650/01 |
| Title: |
ALKALI-SILICA REACTION IN CONCRETE EXPOSED TO SALINE ENVIRONMENTS |
| Principal Investigator: |
Page, Professor C |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Civil & Mechanical Engineering |
| Organisation: |
Aston University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1993 |
Ends: |
30 September 1996 |
Value (£): |
100,435
|
| EPSRC Research Topic Classifications: |
| Civil Engineering Materials |
|
|
| EPSRC Industrial Sector Classifications: |
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
Concrete prism specimens of various controlled alkali levels will be made from cements of systematically varied C3A content and a number of lithologically varied UK aggregates of known susceptibility to ASR (viz chert/flint, siltstone silicified limestone, greywacke and strained granite). Expansions will be monitored over 1 year at 38C and 21/2 years at 20C during exposture tests in saline and non-saline aqueous environments. Detailed analysis of the exposed speciments will be performed by petrographic techniques, SEM/EDXA and complementary methods to elucidate the role of NaC1 in exacerbating ASR expansion under tertain conditions. To assess whether phenomena observed in the laboratory tests are representative of effects of longer field exposure, concrete cores taken from selected regions of ASR - affected structures will be examined as received and after exposure to saline conditions in the laboratory. The results will provide a basis from which to assess the adequacy of existing and proposed specification measures aimed at minimising the risk of ASR in UK concretes which may be exposed to saline environments.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.aston.ac.uk |