DEVELOPMENT OF STRAIN PREDICTION MODELS FOR CONCRETE ROADS

Revathi G M, N. Aravind, Radhakrishna, B.G. Raghavendra Prasad

Abstract: The performance of concrete roads can be monitored in different ways. In order to achieve the continuous and long term monitoring of the pavements, the use of sensor technology is very effective. There are various types of techniques reported to monitor the pavement distress in concrete roads. Sensors are commonly used in the pavements to determine the stress, strain, temperature etc. In this paper, mathematical models are developed using the data reported by Federal Highway Authority (FHWA). The relation between the strain and voltage are used to develop the models. The models are validated each other and also with an independent set of experimental data reported by FHWA. Further, fibre reinforced concrete prisms of grade M40 were cast and cured. The strains in the prisms were measured experimentally by using piezoelectric sensors which were later correlated with the predicted values by the model. The predicted strains were in line with the actual strains measured in the laboratory. The proposed models would be useful in predicting the strains in the concrete structures, roads and white topping roads with the input of single experimental data

Keywords: Continuous and long term monitoring, Sensor Technology, Piezoelectric Sensors, Mathematical models

DOI: https://doi.org/10.15623/ijret.2014.0318043