... resonant frequency relative reduction thin disk nondestructive testing air voids References Gudmarsson   A. , Ryden   N. , and Birgisson   B. , “ Application of Resonant Acoustic Spectroscopy to Asphalt Concrete Beams for Determination of the Dynamic Modulus ,” Materials...

... on the mechanism of sieving analysis. The random distribution of orientations is modeled with a rotation algorithm. Some particular problems such as the issue of “floaters” are solved with an iteration method in the proposed algorithm. Second, the air void phase, which is treated as the second microstructure...

...Isaac L. Howard; Jesse D. Doyle The overall purpose of this paper is to identify the most reliable bulk mixture specific gravity ( G mb ) measurement method for dense graded asphalt concrete that can be used for a wide range of air voids and specimen types. A secondary purpose is to identify ranges...

... process often lead to unstable pavement performance; therefore, its application is highly restricted. This research aims to investigate the compaction procedure for dry process CRM asphalt mixtures using air void content and expansion ratio as the principal indices for evaluation. To evaluate the key...

...Allex E. Alvarez; Amy Epps Martin; Cindy Estakhri Compaction of permeable or porous friction course (PFC) mixtures is generally considered a process without major issues, and field density requirements (or corresponding total air voids [AV] content) are not currently specified for this type of hot...

... as a confirmation test. Test results from the control section were used to establish a correlation between the sand patch tests and the laser texture data. 05 12 2003 12 01 2005 10 08 2005 surface macrotexture segregation air voids nuclear density laser texture data sand patch asphalt...

...ON CÇelik Most bituminous paving researchers agree that high air void content (high permeability) should be avoided in the design and construction of bituminous pavements. Void content in bituminous mixtures is one of the main approaches in determining the optimum binder content. The current design...

...I Ishai; E Tons; AP Chritz An accurate measurement of the maximum specific gravity of bituminous paving mixtures G mm is needed for a reliable air voids analysis of the mixtures in the design and control phases. Since most actual bituminous mixtures combine absorptive aggregates, some difficulties...