Frost-Susceptibility Testing and Predictions for the Raymark Superfund Site

摘要

This project was conducted to assist in predicting the effects of freeze and thawcycling on Tilcon common granular fill during the freezing season. This material is being used as the subbase material in the proposed pavement structure at the Raymark Superfund site in Stratford, Connecticut. Based on the initial laboratory results of the Tilcon material performed at CRREL, the amount of fines passing the no. 200 sieve was found to be in the vicinity of 20%, of which approximately 14% was finer than 0.02 m. Results from the frost heave tests indicate that when the Tilcon material is saturated, based on the rate of heave, the material is classified a high to very high frost susceptible material. In the saturated condition, the material is classified as a low to medium frost susceptible material. Computer simulations were run to predict the amount of frost heave and frost penetration that may be expected on this site during the freezing season. Results from the laboratory frost susceptibility tests and com uter simulations were then used to estimate the amount of cumulative damage to the pavement structure during its design life.