Bionic self-repairing concrete and preparation method thereof

• Main Authors: XIE XIANGMING, YAO CHUKANG, QIU XIAOYAN, ZHAO YALING, YU QINGSHAN, HU LEI, LI YI
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2019
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TREATMENT OF NATURAL STONE

The invention discloses bionic self-repairing concrete and a preparation method thereof. The bionic self-repairing concrete is characterized by being prepared from the following raw materials in partsby weight: 240 to 360 parts of cement, 180 to 250 parts of active admixture, 1300 to 1600 parts of aggregate, 60 to 90 parts of mesoporous bioactive glass composite microspheres, 20 to 30 parts of calcium peroxide microspheres, 20 to 30 parts of carbon nanotubes, 8 to 16 parts of polycarboxylate water reducing agent and 190 to 220 parts of water. The bionic self-repairing concrete provided by theinvention has a rapid self-repairing capability, can continuously and automatically repair micro-cracks or micro-damages of different deep layers in the concrete, promotes the continuous increase ofthe matrix strength after crack repairing, and improves the strength and durability of the concrete. The self-repairing concrete has the advantages of being wide in repairing range, rapid in repairingand lasting in repairing. 本