Title:
METHOD FOR PREPARING DAMAGE-SELF-REPORTING CONCRETE
Document Type and Number:
WIPO Patent Application WO/2020/200170
Kind Code:
A1
Abstract:
Disclosed is a method for preparing a damage-self-reporting concrete, comprising the steps of dissolving PMMA in chloroform; dissolving CVL in phenyl acetate; then placing same in a vortex mixer for vortex mixing, so as to obtain an oil phase; adding a silica sol to distilled water as a continuous phase, and then subjecting the continuous phase and the oil phase to vortex mixing so as to obtain a pre-emulsion; adding a 1 M HCl solution to the pre-emulsion, and adjusting the pH of the pre-emulsion to 8.0; then subjecting same to an ultrasonic bath under ice bath cooling conditions to form an oil-in-water emulsion; stirring the resulting emulsion in a pre-heated oil bath at 40ºC to evaporate the chloroform, so as to obtain a suspension; cooling the resulting suspension to room temperature, and subjecting same to vacuum filtration to obtain a microcapsule; and adding a dispersion system of the microcapsules to a concrete slurry and stirring same, and casting same so as to obtain the damage-self-reporting concrete. The method combines visual sensing and concrete damage monitoring, that is to say, a color change means that a crack appears, which is intuitional and clear, and same has a high sensitivity and can reduce construction difficulties.
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Inventors:
WANG QING (CN)
LI YAO (CN)
ZHENG XU (CN)
WANG NING (CN)
LI YAO (CN)
ZHENG XU (CN)
WANG NING (CN)
Application Number:
PCT/CN2020/082085
Publication Date:
October 08, 2020
Filing Date:
March 30, 2020
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
C04B28/02; B01J13/02; C04B20/10; C04B41/46
Domestic Patent References:
| WO2001029566A1 | 2001-04-26 |
Foreign References:
| CN110002809A | 2019-07-12 | |||
| CN106046932A | 2016-10-26 | |||
| CN201614518U | 2010-10-27 | |||
| CN1813184A | 2006-08-02 | |||
| DE102010027025A1 | 2012-01-19 | |||
| US5534289A | 1996-07-09 |
Attorney, Agent or Firm:
QINGDAO JINJIA PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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