Development of a finite element model for concrete block paving

Abstract

Concrete Block Paving (CBP), which is a predominant construction method used nowadays, is based on the ancient road construction technology “Stone Paving”. The use of CBP is a common sight in most of the developing countries due to its economic adaptability. Although it has emerged as a costeffective paving material, it is yet being developed as a full-fledged construction technique. The aim of this research was to develop a finite element model for CBP and evaluate the deflections in pavement with the application of loads. A three-dimensional finite element model was built to measure the elastic deflection basin with ANSYS finite element modelling software. The reason for developing a finite element model is, as the construction of concrete block pavements for experimenting is costly and challenging, a finite element model simulating the field conditions could be used to overcome these issues and perform further research. Previously developed finite element models and laboratory models were studied. The results obtained from the developed finite element model were verified with the deflection values obtained in a laboratory scaled model. Similar deflection basins could be observed for different load cases. Further studies on the finite element model could be carried out to observe the effect on the deflection of a concrete block pavement with respect to the variation of the block shape.