Temperature Compensation in Deformation Testing for Smart Concrete Structures

2006 ◽  
pp. 1503-1506
Author(s):  
Xian Hui Song ◽  
Li Xia Zheng ◽  
Zhuo Qiu Li
Keyword(s):  
Temperature Compensation ◽  
Concrete Structures ◽  
Smart Concrete

A study on thermal self-diagnostic and self-adaptive smart concrete structures

2000 ◽  
Vol 30 (8) ◽  
pp. 1251-1253 ◽  
Author(s):  
Mingqing Sun ◽  
Zhuoqiu Li ◽  
Qingping Liu ◽  
Zhigang Tang ◽  
Darong Shen
Keyword(s):  
Concrete Structures ◽  
Smart Concrete ◽  
Self Adaptive

scholarly journals Damage detection, localization and quantification in conductive smart concrete structures using a resistor mesh model

2017 ◽  
Vol 148 ◽  
pp. 924-935 ◽  
Author(s):  
Austin Downey ◽  
Antonella D’Alessandro ◽  
Micah Baquera ◽  
Enrique García-Macías ◽  
Daniel Rolfes ◽  
...  
Keyword(s):  
Damage Detection ◽  
Concrete Structures ◽  
Mesh Model ◽  
Smart Concrete

Smart Concrete, Sensors and Self-Sensing Concrete Structures

2008 ◽  
Vol 400-402 ◽  
pp. 69-80 ◽  
Author(s):  
Hui Li ◽  
Jin Ping Ou
Keyword(s):  
Carbon Fiber ◽  
Carbon Black ◽  
Health Monitoring ◽  
Compressive Strain ◽  
Concrete Structures ◽  
Embedded Sensors ◽  
Effect Of Temperature ◽  
Temperature And Humidity ◽  
Sensing Performance ◽  
Smart Concrete

Smart concrete technology provides a new alternative way for health monitoring of reinforced concrete structures. In this paper, the piezoresistivity of two kinds of smart concrete filled with carbon black or carbon fiber was studied, and two types of embedded sensors were fabricated using the smart concrete with favorable piezoresistivity. The sensing performance, the measuring methods and the response to environmental temperature and humidity of embedded sensors were investigated. A compensation circuit was incorporated to reduce the effect of temperature and humidity on the output of embedded sensors. The sensors were embedded in concrete beams and columns to monitor the structural compressive strain under field conditions. Experimental results indicate that the embedded sensors fabricated using smart concrete filled with carbon black or carbon fiber feature favorable sensing performance (gauge factors are 55.28 and 138 respectively). The self-sensing concrete components embedded with these sensors can realize the monitoring of their local compressive strain. It therefore can be concluded that the prepared smart concrete and the developed embedded sensors have great potential to be used for health monitoring and damage assessment of concrete structures.

Hybrid composite rebars for smart concrete structures

1997 ◽  
Author(s):  
R. K. Krishnamoorthy ◽  
Abdeldjelil Belarbi ◽  
K. Chandrashekhara ◽  
Steve E. Watkins
Keyword(s):  
Hybrid Composite ◽  
Concrete Structures ◽  
Smart Concrete

scholarly journals Automated crack detection in conductive smart-concrete structures using a resistor mesh model

2018 ◽  
Vol 29 (3) ◽  
pp. 035107 ◽  
Author(s):  
Austin Downey ◽  
Antonella D’Alessandro ◽  
Filippo Ubertini ◽  
Simon Laflamme
Keyword(s):  
Crack Detection ◽  
Concrete Structures ◽  
Mesh Model ◽  
Smart Concrete

Temperature Compensation in Deformation Testing for Smart Concrete Structures

2006 ◽  
Vol 326-328 ◽  
pp. 1503-1506 ◽  
Author(s):  
Xian Hui Song ◽  
Li Xia Zheng ◽  
Zhuo Qiu Li
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Health Monitoring ◽  
Difference Method ◽  
Temperature Compensation ◽  
Concrete Structures ◽  
Fiber Reinforced Concrete ◽  
Experimental Results ◽  
Measured Deformation ◽  
Different Characteristics

Carbon fiber reinforced concrete (CFRC) structures exhibit both strain sensibility and temperature sensibility, which are coupled with each other when used in traffic or health monitoring for concrete structures. This coupling property results in inaccurateness of measured deformation. In this paper Four-probe Difference Method is used to detach the above two effects according to loaded conditions of structures and different characteristics of the two effects. The theoretical and experimental results indicate that the method is feasible and effective.

Research Progress of Smart Concrete Structures Reinforced by Shape Memory Alloy

2012 ◽  
Vol 226-228 ◽  
pp. 1157-1160 ◽  
Author(s):  
Di Cui ◽  
Yan Zhang ◽  
Ping Guan
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Concrete Beams ◽  
Concrete Structures ◽  
Concrete Columns ◽  
Research Progress ◽  
Self Monitoring ◽  
Development Direction ◽  
Seismic Damping ◽  
Smart Concrete

As a smart material, the study of shape memory alloy in civil engineering mainly in the self-monitoring and self-repairing of concrete beams, earthquake resistance and reinforcement of concrete columns, seismic damping of concrete structures, etc. The development of shape memory alloy and its main features are outlined; research progress of the shape memory effect and superelasticity of shape memory alloys in smart concrete application are introduced; the factors which affect the development of smart concrete structure and the development direction are pointed out.

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