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Laboratory Equipment for Production of Modified Bitumen

Modified bitumen started its development since the 60s of the last century. It appeared due to reduction of the service life of the upper layers of pavement as a result of increased axle loads and vehicle traffic. The traditional asphalt concrete was no longer meeting the requirements in terms of durability of pavement. Since the quality of pavement is primarily determined by the properties of bituminous binders, it was concluded that replacing a conventional bitumen with a polymer modified bitumen would be quite feasible.At the first stage researches were carried out, by the help of laboratory equipment, on the effectiveness of using different polymers, as well as the best technology to combine them with bitumen.

Over time, the obtained results were systematized, but scientific researches in the field of modified bitumen have not been stopped even until this day.

GlobeCore offers the UMB-L laboratory equipment to research laboratories, research institutes and enterprises, specializing in the production of asphalt concrete mixtures, construction and repair of roads, bridges and overpasses. This type of equipment is intended for developing recipes of modified bitumens and conducting all kinds of experiments.

The unit operates on the principle of in-line mixing with simultaneous dispersion of bitumen and polymer, which is achieved through a colloid mill.

The advantages of the GlobeCore UMB-L laboratory unit are:

– possibility of carrying out experiments directly at the place of production;

– obtaining prototype samples of modified bitumen with a capacity up to 12 liters per cycle;

– obtaining modified bitumen samples for laboratory analysis without a high consumption of the initial materials (bitumen, polymers, adhesive additives, plasticizers, and others);

– possibility of adding liquid components in the process of preparing modified bitumen;

– rapid adjustment of the technological process of preparing modified bitumen when having the required amount of modifying additives determined;

– possibility to supply the unit as separately, as in a bundle with plants designed to produce modified bitumen on a commercial scale;

– possibility to get consultations of highly-skilled experts as at the stage of selecting equipment, as at the stage of its operation; and

– ease of use.

Laboratory Unit for Bitumen Emulsion Production

In general, laboratory unit can simulate processes on a small scale, occurring in the real world. This is exactly the type of equipment by the help of which the first bitumen emulsion was obtained in the 20s of the last century.

Most of the methods of its production are based on emulsifying bitumen in water, which in the laboratory conditions can be achieved by means of:

– paddle stirrer;

– ultrasound;

– colloid mill; and

– combined method.

GlobeCore offers to laboratories, research institutes and industrial enterprises, specializing in the production of bituminous materials, the UVB-1L laboratory unit, designed for:

– development and testing of bitumen emulsion recipes;

– preparation of laboratory samples (lots) of bitumen emulsions.

The principle of operation of such equipment is based on chafing bitumen particles in between the rotor and the stator of a colloid mill in a gap of 0.5 mm, and creating at the interface of water and bitumen phases a layer of surface-active substance. The application of a colloid mill makes it possible to obtain a highly stable product, which is not always possible in the case of using conventional paddle mixers (are not able to crush bitumen to the necessary level) and ultrasonic vibrations (require a preliminary fine crushing of bitumen).

The advantages of the GlobeCore UVB-1L laboratory unit are:

– control of the samples quality with low consumption of the initial materials (bitumen, water, emulsifiers, and others);

– testing of any bitumen emulsion recipe;

– production of prototype samples of cationic and anionic bitumen emulsions with a maximum capacity up to 20 L/min;

– study of the material properties when modifying additives are added;

– possibility to supply the unit as separately, as in a bundle with bitumen emulsion plants, designed to produce bitumen emulsions on an industrial scale;

– ability to operate in a semi-automatic mode;

– this equipment can be especially helpful to producers of bitumen emulsions who develop their own recipes in accordance with the local regulations;

– possibility to get consultations of highly-skilled experts as at the stage of selecting equipment, as at the stage of its operation; and

– ease of use.