Rapid Determination of Layer Properties of Pavements from Surface Wave Method

Trr No. 1377 Pavement Design, Management, And Performance, pp. 159-166

Comprehensive Evaluation of Five Sensors Used To Measure Pavement Deflection

Trr No. 1355 Pavement Design, Management, And Performance, pp. 27-36 The main two parameters studied were the accuracv and precision of each sensor. These parameters were studied in a laboratory environment to minimize the effects of uncertainties that mav affect the results. Various impact shapes und duration were investigated. The magnitude of deflection was also varied over a wide range. In…

Mechanistic quality management of hot mix asphalt layers with seismic methods

Use of resilient modulus test results in flexible pavement design

The state of practice in designing pavements in the United States is primarily based on empirical or simple mechanistic-empirical procedures. Even though a number of state and federal highway agencies perform resilient modulus tests, only few incorporate the results in the pavement design in a rational manner. A concentrated national effort is on the way to develop and implement mechanistic pav…

A simple method for determining modulus of base and subgrade materials

Use of Instrumented Dynamic Cone Penetrometer in Pavement Characterization

The dynamic cone penetrometer data had been conventionally used for estimating the base and subgrade California bearing ratio. In recent years, a need for developing mechanistic pavement design procedures has been emphasized. However to develop mechanistic pavement design procedures, measuring engineering properties of pavement layers is essential. Two modifications to the existing dynamic cone…