Preparation method and use method of concrete member hydraulic fracture test device
The invention discloses a preparation method and use method of a concrete member hydraulic fracture test device. A concrete cube test piece with a central penetrating crack is prepared; the prefabricated crack tail and tip of the concrete test piece are symmetrically provided with strain foils; the...
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| creator | CHEN MING ZHOU XUANZHAO XU LIQUN WU JIANXING WU QIONG KAN XIANDONG YUAN BOWEN LIU DETAN SHEN ZHENZHONG |
| description | The invention discloses a preparation method and use method of a concrete member hydraulic fracture test device. A concrete cube test piece with a central penetrating crack is prepared; the prefabricated crack tail and tip of the concrete test piece are symmetrically provided with strain foils; the central penetrating prefabricated crack of the test piece makes contact with a silicone pad of a water sealing device; water pressure is sealed by a steel frame sealing layer, and water inlet and outlet holes are prefabricated in the center of the water-tight steel plate to form a water pressure channel with the central penetrating crack of the concrete test piece; and a fracture water head is formed in the prefabricated crack. The concrete test piece is in contact with a pressure loading systemthrough a biaxial fixing device, and different states of biaxial compressive stresses are formed on the surface of the test piece. The test device has simple structure, feasible operation and feasible technical scheme, and i |
| format | Patent |
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A concrete cube test piece with a central penetrating crack is prepared; the prefabricated crack tail and tip of the concrete test piece are symmetrically provided with strain foils; the central penetrating prefabricated crack of the test piece makes contact with a silicone pad of a water sealing device; water pressure is sealed by a steel frame sealing layer, and water inlet and outlet holes are prefabricated in the center of the water-tight steel plate to form a water pressure channel with the central penetrating crack of the concrete test piece; and a fracture water head is formed in the prefabricated crack. The concrete test piece is in contact with a pressure loading systemthrough a biaxial fixing device, and different states of biaxial compressive stresses are formed on the surface of the test piece. 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A concrete cube test piece with a central penetrating crack is prepared; the prefabricated crack tail and tip of the concrete test piece are symmetrically provided with strain foils; the central penetrating prefabricated crack of the test piece makes contact with a silicone pad of a water sealing device; water pressure is sealed by a steel frame sealing layer, and water inlet and outlet holes are prefabricated in the center of the water-tight steel plate to form a water pressure channel with the central penetrating crack of the concrete test piece; and a fracture water head is formed in the prefabricated crack. The concrete test piece is in contact with a pressure loading systemthrough a biaxial fixing device, and different states of biaxial compressive stresses are formed on the surface of the test piece. The test device has simple structure, feasible operation and feasible technical scheme, and i</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Preparation method and use method of concrete member hydraulic fracture test device |
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