In order to provide a new method study the migration behavior of coarse aggregates in compaction process asphalt mixtures, “Intelligent Aggregate Attitude Acquisition System (IAS)” is developed based on 3D printing technology and wireless intelligent sensing technology, (IAA)” prepared as acquisition terminal. The Superpave Gyratory Compaction (SGC) test Internet Things (IOT) sensor are combine...

The premise of this paper is that low water-to-cement ratio (w/c), higher strength concrete may undergo substantial volume changes, especially at early ages (< 24 hours), and the prevention of these volume changes can lead to invisible micro-cracking as well as visible through-cracking. This paper compares the predicted response of concrete undergoing autogenous shrinkage using two different mo...

Transmission characteristics of layers that contain fractal aggregates are investigated. In particular, the modulation transfer functions of these layers are studied in comparison with the case of uniformly dispersed particles. The effects of aggregation type (fractal dimension) and aggregate size are discussed.

Excimcr formation of dinaphthyipropane (DNP) and pyrene fluorescence probes is used to monitor the microfluidity of dodecyisuifate hemimiceiies formed on alumina particles. The efficiency of excimcr formation of both probes indicate that the hemimiceiie environment is considerably less fluid than that of SDS miceiies suggesting a higher structural organization inside the hemimiceiiar aggregate.

Particles of micrometer to nanometer size often aggregate to form branched structures. Such materials include metals and metal oxides as well as biological and polymeric materials (considering the persistence length as a primary unit). Characterization of such structures is difficult since they typically display disordered, irregular features in three dimensions. Branched aggregates display two...

A laboratory study was made of the effects of crushed particles, both coarse and fine aggregate, on the stability of bituminous-aggregate mixtures. Crushed limestone and varying percentages of crushed and uncrushed gravel were used as the coarse aggregate while variation in the shape of the fine aggregate was obtained by using rounded natural sand and crushed-stone sand. These aggregates were u...

The strongest fortresses often disintegrate from the inside. Likewise, soil internal forces play a critical role in initial breakdown process of aggregate, thus accelerating erosion and release colloid particles. To date, research on effect forces, especially separating electrostatic force, aggregate with particle transport is largely inadequate. Therefore, column experiments were used to inves...