Laboratory model tests were conducted on circular footings supported by unreinforced and geogrid-reinforced fly ash-sand beds subjected to cyclic loading. An attempt was made in this project to investigate the static and cyclic behavior of unreinforced and geogrid-reinforced two-layer system (i.e., fly ash-sand layer) by conducting load tests in a circular tank of internal dimensions of 500 mm diameter and 390 mm height. The fly ash bed of various thicknesses (0.3B, 0.6B, and 0.9B where B is the diameter of the footing) was placed over the sand with a relative density of 35%. Reinforcement was provided at the interface of the two-layer. Three types of biaxial geogrids were used and results were compared. The static behavior was represented in terms of Bearing Capacity Ratio (BCR) and the cyclic response in terms of Coefficient of Uniform Compression (Cu). The results indicated that with an increase in the fly ash depth in the two-layer system, there is an increase in the BCR(Layered) and further improvement was observed in terms of BCR(Layered RF) by placing the reinforcement at the interface of the two-layer. From the cyclic load test results, the coefficient of elastic uniform compression (Cu) was calculated for the different cases. The Cu value was found to increase in the presence of geogrid reinforcement.