#Gorman brother asphalt emulsion mill series#

The amphiphile molecule (surfactant) prevents droplet coalescence by decreasing the interfacial tension between bitumen and water, thereby stabilizing the system and allowing emulsification.

Surfactants lower the viscosity of the system in comparison to the initial viscosity of the bitumen. According to industrial experience, the proper emulsion for road applications has a high bitumen content, which normally ranges from 60 to 70%, with a unimodal droplet size distribution and an average droplet size ranging from 5 to 15 μm. For phase compatibility, non-ionic, anionic, or cationic surfactants are added at a concentration of 1–2 weight percent of the total bitumen emulsion mass. As an emulsion, bitumen emulsion is considered as an oil in water (O/W) emulsion system with water (or soap) as the continuous phase and bitumen as the dispersed phase. As a result, the cold mix emits less ozone-depleting hydrocarbons. Furthermore, there are fewer hazards of fire and burns, and the process consumes less energy. Bitumen emulsions have a significant advantage over hot bitumen since their operations need less energy because their viscosity is lower than that of hot bitumen. Bitumen emulsions are an innovative method for liquifying bitumen by dispersing it in water. its applications are quite diverse, including cold recycling mixtures, tack coating, and surface treatment. This review paper aims to enable the ultimate potential of bitumen emulsion by further reviewing the research progress of bitumen emulsion manufacturing and discussing the literature available up to now on this topic, in the realm of bitumen emulsion manufacturing and emulsion chemistry.īitumen emulsion is becoming more popular in the pavement construction sector. Therefore, discussing some important issues in this field could be useful to offer a practical guide for bitumen emulsion manufacturers when trying to formulate a well-defined bitumen emulsion to best fit its use in pavement infrastructure rather than to simply to meet standard specifications. Some of them have technical limitations to be utilized for practical industrial application, whereas others are still not understood enough to be applied in bitumen emulsion formulation. Several pre-established formulation procedures have been presented in the literature.

#Gorman brother asphalt emulsion mill series#

Consequently, obtaining the desired product is mostly based on a series of random and tedious trials because of the enormous number of tests that are carried out to meet the required properties, such as emulsion stability, viscosity, droplet size (and distribution), and bitumen emulsion chemistry. The bitumen emulsion formulation process and compositional optimization are subjected to a high number of degrees of freedom. However, there are still scientific and technical obstacles standing against its regular application. One group of those materials is produced by using bitumen emulsion. Our equipment can offer you production capacities that range from one to ten thousand gallons per hour equal to up to forty tons per hour.The global increase of road infrastructure and its impact on the environment requires serious attention to develop sustainable and environmentally friendly road materials. For processing versatility, Charlottes are fully jacketed to permit product heating via low pressure steam or oil during operation. These clearances can be set anywhere from. All Charlotte Mills have externally adjustable rotor and stator gap clearances.

This results in lower long-term costs by using fewer chemicals, less wear on the mills, and faster run times.Īll Charlotte Colloid Mills are designed to process materials up to 400☏ and withstand product throughput pressures up to 150 PSI. The Charlotte Mills are known to produce the same quality products after the first pass through the mill while many other brands must be run through multiple times or through multiple mills to reach the same level of quality that the Charlottes achieve in one pass. Our “G” Series of Charlotte Colloid Mills have been perfected and reengineering over many decades to make them the most durable and energy efficient colloid mills on the market.