Abstract
Stabilized mixes are used in the construction of bearing layers in asphalt and concrete pavement structures. Two nondestructive methods: resonant frequency method and ultrasonic pulse velocity method, were used for estimation of elastic properties of fly ash–stabilized mixes. Stabilized mixes were designed containing sand from the river Drava and binder composed of different share of cement and fly ash. The aim of the research was to analyze the relationship between the dynamic modulus of elasticity determined by different nondestructive methods. Data showed that average value of elasticity modulus obtained by the ultrasound velocity method is lower than the values of elasticity modulus obtained by resonant frequency method. For further analysis and enhanced discussion of elastic properties of fly ash stabilized mixes, see Dimter et al. [1].
Highlights
Stabilized mixes are used in the construction of bearing layers in asphalt and concrete pavement structures
Data accessibility resonant frequency method ultrasonic pulse velocity method Raw data collected during measurement, calculated, analyzed, tabulated and plotted The samples of stabilized mixes were prepared and treated as described in Ref. [1]
For UPV method, the time for the ultrasound to pass through the specimen is measured electronically and is registered in the oscilloscope
Summary
Stabilized mixes are used in the construction of bearing layers in asphalt and concrete pavement structures. The aim of the research was to analyze the relationship between the dynamic modulus of elasticity determined by different nondestructive methods. For UPV method, the time for the ultrasound to pass through the specimen is measured electronically and is registered in the oscilloscope. Both tests were performed on three identically prepared samples. The data of dynamic modulus of elasticity, derived from both methods in laboratory tests, can be used in analysis and design of the pavement structure in mechanistic-empirical methods, especially for unconventional stabilized materials such as fly ash. Comparision between dynamic modulus of elasticity in cement stabilized mixes, obtained from different nondestructive methods, is limited. This data can be usefull as guidelines to select suitable parameters of stabilized mixes in the development of further experiments (for instance: content of binder, the binder composition, curing time, temperature treatment)
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