Sol–gel-entrapped pH indicator for monitoring pH variations in cementitious materials
Sensors for pH evaluation of concrete were made by a sol–gel process with alizarin yellow as pH indicator. The optical absorbance was measured with a visible spectrophotometer coupled with optical fibers. Results showed that the sensors had good reversibility, reproducibility, and fast response time...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2020-11-01
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| Series: | Journal of Applied Biomaterials & Functional Materials |
| Online Access: | https://doi.org/10.1177/2280800020936540 |