CPC C04B 41/501 (2013.01) [C04B 41/009 (2013.01); C04B 41/4558 (2013.01)] | 5 Claims |
1. A method for reinforcing weathered stone relics by using low temperature plasma to activate calcium hydroxide in carbon dioxide atmosphere, comprising the following steps:
(1) removing attachments on a surface of stone relics;
(2) dispersing calcium hydroxide in an isopropanol aqueous solution with a volume concentration of about 5%-5.5% to obtain a saturated reinforcement solution, wherein the calcium hydroxide has a particle size of lower than about 6.5 μm;
(3) spraying the reinforcement solution obtained in step (2) on a weathered layer of the stone relics;
(4) spraying the stone relics sprayed with reinforcement solution obtained in step (3) with cold plasma with a temperature lower than about 50° C. generated from the nozzle of a low temperature plasma source loaded with carbon dioxide; and
(5) repeating steps (3) and (4) 10-15 times.
|