Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement-based composite material as well as preparation method and application thereof
The invention discloses a cement-based composite material as well as a preparation method and application thereof. The cement-based composite material is prepared from the following substances in parts by weight: 90 to 100 parts of cement, 450 to 500 parts of fly ash, 100 to 150 parts of quartz sand, 0.6 to 0.8 part of dispersing agent, 0.6 to 0.8 part of defoaming agent, 4.2 to 6 parts of carbon fiber, 6 to 12 parts of nano carbon black, 9 to 12 parts of polyvinyl alcohol fiber, 180 to 200 parts of water and 6 to 12 parts of water reducing agent. The cement-based composite material obtained by the invention has stable piezoresistive effect and high sensitivity to stress deformation, the resistivity change has high regularity, and the deformation condition in a tensile state can be monitored by analyzing the piezoresistive effect; meanwhile, the ultimate tensile strain of the obtained material is stably kept at 3.0% or above, the material has excellent ductility, and the monitoring range of tensile deformation can be greatly widened; the obtained material has low resistivity, and the sensitivity of sensing performance can be improved.
本发明公开了一种水泥基复合材料及其制备方法与应用，水泥基复合材料包括以下重量份数的物质：水泥90～100份，粉煤灰450～500份，石英砂100～150份，分散剂0.6～0.8份，消泡剂0.6～0.8份，碳纤维4.2～6份，纳米炭黑6～12份，聚乙烯醇纤维9～12份，水180～200份，减水剂6～12份。本发明所得水泥基复合材料具有稳定的压阻效应，对受力变形有很高的灵敏度，且电阻率变化具有很强的规律性，通过分析力阻效应能够监测拉伸状态下的变形情况；同时，所得材料极限拉应变稳定地保持在3.0％以上，具有极佳的延性，能够大幅提升拉伸变形的监测范围；所得材料有较低的电阻率，能提高感知性能的灵敏度。
Cement-based composite material as well as preparation method and application thereof
The invention discloses a cement-based composite material as well as a preparation method and application thereof. The cement-based composite material is prepared from the following substances in parts by weight: 90 to 100 parts of cement, 450 to 500 parts of fly ash, 100 to 150 parts of quartz sand, 0.6 to 0.8 part of dispersing agent, 0.6 to 0.8 part of defoaming agent, 4.2 to 6 parts of carbon fiber, 6 to 12 parts of nano carbon black, 9 to 12 parts of polyvinyl alcohol fiber, 180 to 200 parts of water and 6 to 12 parts of water reducing agent. The cement-based composite material obtained by the invention has stable piezoresistive effect and high sensitivity to stress deformation, the resistivity change has high regularity, and the deformation condition in a tensile state can be monitored by analyzing the piezoresistive effect; meanwhile, the ultimate tensile strain of the obtained material is stably kept at 3.0% or above, the material has excellent ductility, and the monitoring range of tensile deformation can be greatly widened; the obtained material has low resistivity, and the sensitivity of sensing performance can be improved.
本发明公开了一种水泥基复合材料及其制备方法与应用，水泥基复合材料包括以下重量份数的物质：水泥90～100份，粉煤灰450～500份，石英砂100～150份，分散剂0.6～0.8份，消泡剂0.6～0.8份，碳纤维4.2～6份，纳米炭黑6～12份，聚乙烯醇纤维9～12份，水180～200份，减水剂6～12份。本发明所得水泥基复合材料具有稳定的压阻效应，对受力变形有很高的灵敏度，且电阻率变化具有很强的规律性，通过分析力阻效应能够监测拉伸状态下的变形情况；同时，所得材料极限拉应变稳定地保持在3.0％以上，具有极佳的延性，能够大幅提升拉伸变形的监测范围；所得材料有较低的电阻率，能提高感知性能的灵敏度。
Cement-based composite material as well as preparation method and application thereof
一种水泥基复合材料及其制备方法与应用
PAN JINLONG (Autor:in) / HAN JINSHENG (Autor:in) / CAI JINGMING (Autor:in) / XU LI (Autor:in) / GU DAWEI (Autor:in)
31.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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