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A platform for research: civil engineering, architecture and urbanism
Ultra-high performance cement-based composite material for sensor, sensor and preparation method thereof
The invention relates to an ultra-high performance cement-based composite material for a sensor, the sensor and a preparation method thereof, and belongs to the technical field of civil engineering materials, and the ultra-high performance cement-based composite material comprises cement, fly ash, quartz sand, fibers, a water reducing agent, starch gel, water, carbon nanotubes, graphite powder anda surfactant. The tensile strain of the ultra-high-performance cement-based composite material is 3% or above; the defects of brittleness, low tensile strength, poor toughness, easiness in cracking and the like of a common cement-based material are overcome; the strain monitoring range of the manufactured sensor is far larger than that of a sensor made of a common smart cement-based material; thecarbon nano tube and the graphite powder are used as conductive phase materials, the manufacturing cost is low, the sensor is good in compatibility with a concrete structure, excellent in conductivity and smart, stable and reliable in performance, long in service life and easy to manufacture, and due to the addition of the starch gel, shrinkage deformation of the composite material is greatly reduced.
本发明涉及一种用于传感器的超高性能水泥基复合材料、传感器及制备方法，属于土木工程材料技术领域，本发明的超高性能水泥基复合材料包括水泥、粉煤灰、石英砂、纤维、减水剂、淀粉凝胶、水、碳纳米管、石墨粉和表面活性剂。本发明的超高性能水泥基复合材料的拉伸应变为3％以上，克服了普通水泥基材料脆性、抗拉强度低、韧性差、易开裂等缺陷，制作出的传感器应变监测范围远远大于普通机敏水泥基材料的传感器，采用碳纳米管和石墨粉作为导电相材料，造价低，该传感器与混凝土结构物相容性好，具有优异的导电性和机敏性，性能稳定可靠、使用寿命长、制作简单，并且淀粉凝胶的加入，大大减少了复合材料的收缩变形。
Ultra-high performance cement-based composite material for sensor, sensor and preparation method thereof
The invention relates to an ultra-high performance cement-based composite material for a sensor, the sensor and a preparation method thereof, and belongs to the technical field of civil engineering materials, and the ultra-high performance cement-based composite material comprises cement, fly ash, quartz sand, fibers, a water reducing agent, starch gel, water, carbon nanotubes, graphite powder anda surfactant. The tensile strain of the ultra-high-performance cement-based composite material is 3% or above; the defects of brittleness, low tensile strength, poor toughness, easiness in cracking and the like of a common cement-based material are overcome; the strain monitoring range of the manufactured sensor is far larger than that of a sensor made of a common smart cement-based material; thecarbon nano tube and the graphite powder are used as conductive phase materials, the manufacturing cost is low, the sensor is good in compatibility with a concrete structure, excellent in conductivity and smart, stable and reliable in performance, long in service life and easy to manufacture, and due to the addition of the starch gel, shrinkage deformation of the composite material is greatly reduced.
本发明涉及一种用于传感器的超高性能水泥基复合材料、传感器及制备方法，属于土木工程材料技术领域，本发明的超高性能水泥基复合材料包括水泥、粉煤灰、石英砂、纤维、减水剂、淀粉凝胶、水、碳纳米管、石墨粉和表面活性剂。本发明的超高性能水泥基复合材料的拉伸应变为3％以上，克服了普通水泥基材料脆性、抗拉强度低、韧性差、易开裂等缺陷，制作出的传感器应变监测范围远远大于普通机敏水泥基材料的传感器，采用碳纳米管和石墨粉作为导电相材料，造价低，该传感器与混凝土结构物相容性好，具有优异的导电性和机敏性，性能稳定可靠、使用寿命长、制作简单，并且淀粉凝胶的加入，大大减少了复合材料的收缩变形。
Ultra-high performance cement-based composite material for sensor, sensor and preparation method thereof
一种用于传感器的超高性能水泥基复合材料、传感器及制备方法
WANG YOUZHI (author) / TIAN CHANGJIN (author) / DU YEFENG (author) / ZHANG YANAN (author) / QIU KAI (author) / LIU JINZHANG (author) / LYU BIN (author) / ZHOU JIAN (author) / HAN SHAOLONG (author)
2020-09-04
Patent
Electronic Resource
Chinese
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