Marking method for microbial self-repairing of concrete cracks based on fluorescent material
A technology of fluorescent materials and marking methods, applied in the field of building materials, to achieve the effect of improving color discrimination
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0024] Sample: Concrete specimen size 100mm×100mm×100mm, demoulding for 24 hours, water-cement ratio 0.50, sand rate 36%, adding carbonic anhydrase in the form of bacteria powder to replace sand, replacement rate 5%, standard condition curing 28d .
[0025] Europium nitrate solution preparation: according to the chemical reaction formula Prepare 10ml of deionized water, 0.7ml of 68% nitric acid, 0.765g of Eu 2 o 3 . Dilute 0.7ml of concentrated nitric acid with 10ml of deionized water, pour it into a 25ml three-necked flask, and weigh 0.495g of Eu with a purity of 99.99%. 2 o 3 Add the white powder, stir at room temperature on a magnetic stirrer for 2h, measure the pH value of the solution, weigh 0.270g of Eu with a purity of 99.99% 2 o 3 Add the white powder, stir the solution for 2 hours in a water bath at 60°C, and measure the pH value of the solution. When the pH value of the solution is 7, the reaction is complete. Transfer the reaction solution to a 100ml volumetr...
Embodiment 2
[0029] Sample: The size of the concrete specimen is 100mm×100mm×100mm, the water-cement ratio is 0.50, and the sand rate is 36%. Carbonic anhydrase is added in the form of bacterial powder to replace the sand, and the replacement rate is 5%, and the standard condition is maintained for 28 days.
[0030] Europium nitrate solution preparation: according to the chemical reaction formula Prepare 15ml of deionized water, 1.75ml of 68% nitric acid, 1.913g of Eu 2 o 3 . Dilute 1.75ml of concentrated nitric acid with 15ml of deionized water, pour it into a 50ml three-necked flask, and weigh 1.238g of Eu with a purity of 99.99%. 2 o 3 Add the white powder, stir at room temperature on a magnetic stirrer for 2h, measure the pH value of the solution, weigh 0.675g of Eu with a purity of 99.99% 2 o 3 Add the white powder, stir the solution for 2 hours in a water bath at 60°C, and measure the pH value of the solution. When the pH value of the solution is 7, the reaction is complete. Tr...
Embodiment 3
[0034]Sample: The size of the concrete specimen is 100mm×100mm×100mm, the water-cement ratio is 0.50, and the sand rate is 36%. Carbonic anhydrase is added in the form of bacterial powder to replace the sand, and the replacement rate is 5%, and the standard condition is maintained for 28 days.
[0035] Europium nitrate solution preparation: according to the chemical reaction formula Prepare 20ml of deionized water, 0.7ml of 68% nitric acid, 0.765g of Eu 2 o 3 . Dilute 1ml of concentrated nitric acid with 20ml of deionized water, pour it into a 50ml three-necked flask, and weigh 0.500g of Eu with a purity of 99.99%. 2 o 3 Add the white powder therein, stir at room temperature on a magnetic stirrer for 2h, measure the pH value of the solution, weigh 0.265g of Eu with a purity of 99.99% 2 o 3 Add the white powder, stir the solution for 2 hours in a water bath at 60°C, and measure the pH value of the solution. When the pH value of the solution is 7, the reaction is complete....
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com