This study investigates the effect of moisture conditioning on the Indirect Tensile Strength (ITS) of asphalt concrete. As a first step, cylindrical samples of 100 mm diameter and 50 mm thick were prepared using a Superpave gyratory compactor. Next, the samples were conditioned using Moisture Induced Susceptibility Test (MIST) device at different numbers of moisture conditioning cycles. In the ...

pavement permanent deformations due to lack of shear strength in mixture are a major reason of rutting. any simple test to determine mixtures resistance to permanent deformation isn’t distinguished in the 1st level of superpave mix design method and prevalent methods for evaluating mixture rut resistance are expensive and time-consuming. two aggregate types, gradations, asphalt cements and fill...

For gyratory compaction, the concept of locking point was initially developed to identify compactability asphalt mixes and alleviate potential aggregate crushing in mold. Most previous studies on were based specimens’ height change. Recent have indicated that cold mix mixtures could be determined by rotation angle range indicator using SmartRock. However, or change ultimately reflects a volume....

The energy loss by a test gyratory particle in a cold plasma in the presence of homogeneous magnetic field is considered. Analytical and numerical results for the rate of energy loss are presented. This is done for strong and weak fields (i. e., when the electron cyclotron frequency is either higher, or smaller than the plasma frequency), and in case, when the test particle velocity is greater ...

Comminution by gyratory crusher is the first stage in size reduction operation mineral processing. In copper industry, these machines are widely utilized, and their reliability has become a relevant aspect. To optimize design to improve availability of crushers, it necessary calculate power torque accurately. The discrete element method (DEM) been commonly used several mining applications power...

There are a sufficient number of works devoted to modeling crushing machines. Nevertheless, the fact that there large working conditions, and ongoing development science technology, require continuous improvement specification models intended for processes those devices concerned. However, few studies related single-roll gyratory crushers. Such crushers promising use in mines crush rocks laid d...

The objective of this research was to develop a new method for predicting the number roller passes and degree compaction asphalt layer from perspective energy. relationship between energy density quantified using gyratory compactor. Prediction models utilization coefficient product rolling resistance were established based on test section. prediction procedure proposed. Test results showed pred...