Construction & Infrastructure (Industry) Technologies: SHAPE MEMORY ALLOY POWERED HYDRAULIC ACCUMULATOR Monitoring bolt tightness using percussion and machine learning Monitoring Bolt Tightness Using Percussion and Machine Learning Systems and Method Utilizing Piezoelectric Materials to Mitigate or Eliminate Stick-Slip During Drilling Self-stressing shape memory alloy-fiber reinforced polymer patch Rapid Detection and Quantification of Surface and Bulk Corrosion and Erosion in Metals and Non-Metallic Materials with Integrated Monitoring System SELF-HEATING CONCRETE USING CARBON NANOFIBER PAPER SYSTEMS AND METHODS UTILIZING CARBON NANOFIBER AGGREGATE FOR PERFORMANCE MONITORING OF CONCRETE STRUCTURES INTERACTIVE SCALE 4 DIMENTION PRINTING OF REINFORCED CONCRETE Magnetic surfaces and uses thereof