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A COST-EFFECTIVE METHOD FOR CRACK DETECTION AND MEASUREMENT ON CONCRETE SURFACE
crack detection depth camera image processing stereovision
2018/3/6
Crack detection and measurement in the surface of concrete structures is currently carried out manually or through Non-Destructive Testing (NDT) such as imaging or scanning. The recent developments in...
DEFORMATION MONITORING OF RETROFITTED SHORT CONCRETE COLUMNS WITH LASER SENSOR
Concrete Column Laser Sensor Deformation Monitoring
2016/11/11
This paper presents one of the applications of monitoring mechanical tests carried out in Construction Materials Laboratory of Istanbul Technical University. In Turkey, as in many countries, large amo...
AUTOMATIC THICKNESS AND VOLUME ESTIMATION OF SPRAYED CONCRETE ON ANCHORED RETAINING WALLS FROM TERRESTRIAL LIDAR DATA
LiDAR point cloud retaining wall rock bolts shotcrete feature extraction volume calculation
2016/11/11
When ground conditions are weak, particularly in free formed tunnel linings or retaining walls, sprayed concrete can be applied on the exposed surfaces immediately after excavation for shotcreting roc...
OPTIMAL IMAGE STITCHING FOR CONCRETE BRIDGE BOTTOM SURFACES AIDED BY 3D STRUCTURE LINES
Image Stitching 3D Structure Line Concrete Bridge Inspection
2016/7/27
Crack detection for bridge bottom surfaces via remote sensing techniques is undergoing a revolution in the last few years. For such applications, a large amount of images, acquired with high-resolutio...
Modelgen: Mining Explicit Information Flow Specifications from Concrete Executions
Dynamic analysis specification mining information flow
2016/5/24
We present a technique to mine explicit information flow specifications from concrete executions. These specifications can be consumed by a static taint analysis, enabling static analysis to work even...
Crack detection at concrete construction units from photogrammetric data using image processing procedures
Photogrammetry Change detection Tracing
2015/8/20
Cracks on the surface of a concrete construction are measured and evaluated by a digital photogrammetric method. Knowing these
cracks, the behaviour of the construction, especially using textile rein...
Monitoring Crack Origin and Evolution At Concrete Elements Using Photogrammetry
Change Detection Tracing High resolution
2015/7/15
Controlling and monitoring of crack origin and evolution of concrete elements is an important task in research of building materials.
The efficiency of the reinforcement to the bearing capacity depen...
Measurement of Shrinkage In Concrete Samples By Using Digital photogrammetric Methods
Calibration Close Range Adjustment
2015/7/14
This paper shows the use of digital photogrammetry for measurement of shrinkage in concrete sample (4x4x22 cm) during the hydration
process. A vision system consist of two digital video cameras was e...
MEASUREMENT OF DEFLECTIONS IN CONCRETE BEAMS BY CLOSE-RANGE DIGITAL PHOTOGRAMMETRY
digital photogrammetry deflection measurement structural testing
2015/3/13
MEASUREMENT OF DEFLECTIONS IN CONCRETE BEAMS BY CLOSE-RANGE DIGITAL PHOTOGRAMMETRY.
Interfacial Strength Between Prestressed Hollow Core Slabs and Cast-in-Place Concrete Toppings
Interfacial Strength Prestressed Hollow Core Slabs Cast-in-Place Concrete Toppings
2014/10/22
The horizontal shear strength of the interface between prestressed concrete hollow core slabs and cast-in-place concrete topping slabs was evaluated through a set of 24 push-off experiments. The push-...
ENHANCING CONCRETE BARRIER REFLECTIVITY WITH A FOCUS ON RECYCLED GLASS AGGREGATE REPLACEMENT
CONCRETE BARRIER REFLECTIVITY RECYCLED GLASS AGGREGATE REPLACEMENT
2014/10/22
Increased accident rates during the nighttime and wet weather conditions on theUnited States highways necessitate the enhancement of highway concrete barrier visibility. The visibility of these deline...
PERFORMANCE EVALUATION OF EXISTING STEEL AND CONCRETE GIRDER BRIDGES THROUGH NON-DESTRUCTIVE LIVE-LOAD TESTING
EXISTING STEEL CONCRETE GIRDER BRIDGES NON-DESTRUCTIVE LIVE-LOAD TESTING
2014/10/22
Traditional evaluations of a bridge behavior are based upon assumptions of material properties, load distributions in the bridge deck, any quantified structural damage from visual inspections, and the...
Anchorage of Carbon Fiber Reinforced Polymers to Reinforced Concrete in Shear Applications
Carbon Fiber Reinforced Polymers Reinforced Concrete Shear Applications
2014/10/22
Due to ongoing deterioration and lack of maintenance, a need to rehabilitate and lengthen the serviceable lifetime of deteriorated structures has grown. The crucial cause in the deterioration of our i...
Ultrasonic Detection Algorithm Research on the Damage Depth of Concrete after Fire
Concrete Fire damage Damage depth Ultrasonic wave
2014/4/10
To measure the depth of fire-damaged concrete by ultrasonic method, it was traditionally assumed that the concrete of the fire-damaged structural member could be simply classified into damaged layer a...
THE TRANSFORMATION FROM GREEN TO CONCRETE CITIES; A REMOTE SENSING PERSPECTIVE
Green Cities Concrete Cities Remote Sensing Google Earth GeoEye Transformation Analysis
2014/4/24
Cities especially in developing countries have been experiencing dramatic transformation as a result of rapid urbanization. For instance, the rate of urbanization in Kenya since independence in 1963 i...