As a dust palliative, calcium chloride keeps dusty, unpaved roads from creating clouds of dust, thereby reducing the health hazards from asthma and other respiratory ailments. Calcium chloride is hygroscopic and because of its affinity for atmospheric moisture, it works well to control dust.ĭirt roads are some of the most expensive roads to maintain. Liquid Calcium ChlorideĬalcium chloride is a very basic chemical with unique attributes that allow it to be used in many applications. These relationships allow Peckham to expand their knowledge base and expertise and to help customers solve unique problems and tackle difficult jobsite conditions. Peckham has built close relationships with some of the largest emulsifier suppliers around the world. We have extensive experience in both the application and the production of emulsions, and our technicians understand how critical the quality of the emulsion is. This means customers are provided with emulsion that meets their specific need on time, every time.Įmulsions have long been used for chip seals and cold mix pavements as well as other pavement maintenance uses. Because of the large storage capacity of these locations, Peckham has the capability to produce many grades of emulsion simultaneously. Peckham produces both anionic and cationic emulsions at our facilities in New Windsor, NY and Athens, NY. Municipalities and private clients – in both new road construction and in countless maintenance projects – have used Peckham’s emulsions extensively.
ASPHALT EMULSION FULL
Emulsions are versatile and may be used for chip seal, cold mix paving, full depth reclamation, base stabilization, cold in-place recycling, tack coat, micro surfacing, soil encapsulation and other more specialized uses.
Therefore, to ensure higher dynamic modulus and bonding ability of emulsion residue, asphalt emulsion with small droplets size is recommended.Peckham manufactures and supplies a complete line of asphalt emulsions that are used throughout the Northeastern U.S. Besides, the ϕ m of asphalt emulsion is decreased with the increasing asphalt droplet size. The dynamic modulus and bonding ability of emulsion residue can linearly increase with the ϕ m of asphalt emulsion. Results showed that the residue properties of different asphalt emulsions could be significantly different due to the various film structure of emulsion residue formed under ambient temperature drying. The relationship between the film properties and ϕ m of asphalt emulsion was studied to reveal the mechanism for the different film formation properties of asphalt emulsions.
The maximum packing fraction of asphalt droplets ( ϕ m) formed during drying was proposed to quantitatively characterise the film structure of emulsion residue. The dynamic modulus and bonding ability of emulsion residue were studied to characterise the film formation properties of asphalt emulsion.
Nevertheless, the importance of these properties is not fully understood yet. The film formation properties of asphalt emulsion under ambient temperature drying are important to the mechanical properties of cold asphalt emulsion mixture.
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