Category Archives: Construction industry

A Practical Guide for Construction Companies: How to Choose the Correct Container for Bitumen?

Nowadays, the storage and discharge of bitumen can be difficult and expensive operations for your company.  The physical and chemical peculiarities of the material, difficult climatic service conditions, high energy consumption and a need for a long warm up times are some reasons for finding new ways of improving the process and equipment designs.

The high quality equipment offered by GlobeCore for carrying out different operations with bitumen, without damaging its quality, is a solution to the problms listed above.

The easiest way to save and exploit the characteristics of cohesive materials is through the use of modern bitumen storage tanks during the transportation stage of your operation(s). The right choice of bitumen equipment will result in a higher-quality road surface.

That is why the bitumen storage tanks should be constructed in accordance with international standards.  The form and construction of the tanks and equipment will vary depending on the customer’s needs.

For example, bitumen storage tanks are used for holding bitumen.  They are a flexible, portable system, that allows for either temporary, or permanent storage of bitumen products.

The use of storage pits for bitumen have become obsolete and outdated.  They are no longer suitable for use in the storage if bitumen products.  The cost of restoring the bitumen performance characteristics after using such storage methods, can exceed the original cost of the product.  It is therefore, no longer practical to use storage pits for your bitumen products.

The modern producers of bitumen equipment offer new models for bitumen storage and transportation that include both horizontal and vertical tank designs.

Each type has its own advantages and disadvantages as well as peculiarities of how they are used with different and specific types of products.

Horizontal bitumen storage tanks should be used if there is a large enough area for the placement of the bitumen storage tanks.  The storage and the warming up of bitumen can be performed by a coiled heater unit in a special container.  It is easier to comply with the strict requirements and provide monitoring of the product condition in the horizontal bitumen tanks.

The peculiarities of the customer’s business operations, and his own preferences or requirements, can also influence the main characteristics of a bitumen storage tank system.  Normally, horizontal bitumen storage tanks of different size capacity size are made from rolled sheetmetal that is 6 mm thick and sheathed with insulation to retain heat.  There are additional optional components that enhance the storsge units and should be a part of your modern bitumen equipment choices.  Based on the customer’s request, horizontal bitumen storage tanks can be fitted with the following:

  • thermoregisters for warming up of bitumen;
  • electric heating element;
  • temperature monitoring system;
  • Reporting system, responsible for bitumen paste indexes and the extent of fullness of the container;
  • arrangements and tools for operating of a tank and so on.

The vertical type bitumen storage tanks are mostly designed with a circulation system when using modified bitumen.  The vertical tanks can be more economic, occupy less manufacturing area and can be easier to use.  Many companies producing bitumen emulsions often prefer vertical storage tanks.

In the vertical type bitumen storage tanks, the heating system can be powered by  steam, gas, oil, or low temperature electric heaters.  The hot oil running through coiled pipes into the container heats bitumen product.  This process provides an optimal temperature level and control without overheating.

Development of bitumen storage tanks is based on a wide range of principles including:

  • energy efficiency;
  • conservation of the bitumen qualities;
  • reduction of the amount of water in the bitumen storage tank to the absolute minimum while preparing to manufacture asphalt;
  • reduced time for preparation and warming up of bitumen in the storage tank;
  • fire prevention/security;
  • compliance with environmental standards;
  • individual approach to every order.

Machine for bitumen emulsion production

What is a “bitumen emulsion”?

An emulsion a fine dispersion of minute droplets of one liquid in another in which it is not soluble or miscible. In the case of a bitumen emulsion bitumen droplets are distributed in the water. The latter contains a surfactant – an emulsifier for stabilizing the emulsion.


Bitumen emulsion properties

The most important property of bitumen emulsion is the rate of decay on the surface of the mineral material. This serves as an indicator for its use in a particular industry.

During a reaction between cationic bitumen emulsion and a filler decay begins almost immediately. The water is rapidly displaced from the surface of the mineral material and is then evaporated. Upon contact between bitumen emulsion and stone emulsifier decreases in volume, which decrease the stability of the emulsion and produces bitumen.

Uniform distribution over treated surfaces is possible due to the relatively low viscosity of bitumen emulsions, which saves huge volumes or bitumen.


Benefits of bitumen emulsion

Application of bitumen emulsion in construction instead of the traditional “hot” technology allows you to:

  • reduce energy consumption by almost half by eliminating the need for heating before use;
  • conserve bitumen by 20-30%;
  • ensure full adhesion to the base of the road;
  • combine emulsion with wet solids;
  • carry out work from early spring to late autumn;
  • achieve flexibility in conduct of operations.

In addition, the bitumen emulsion is fireproof and environmentally friendly. Its use eliminates the possibility of burns and improves the safety of the workplace.


Bitumen emulsion production

For production of bitumen emulsion GlobeCore company recommends to use the model type UVB-1.

This machine produces bitumen emulsions by passing a mixture of hot bitumen and water through a special dispersing device – a colloid mill (between the rotating rotor and a stationary stator).

The aqueous solution is prepared in a special container where heated water, emulsifier, acid/alkali, add other additives are mixed. The resulting solution is then thoroughly mixed.

At the customer’s request, the machine can be custom made:

  • RAMS;
  • sea container with space for an operator (mobile and stationary models);
  • container coated in leather panels (mobile and fixed version).

Model type UVB-1 can be manufactures with different production rates, allowing you to choose the right model for a small repair shop or a full asphalt plant.

What emulsions may be prepared using model UVB-1?

Model UVB- 1 is intended for all types of bitumen emulsions:

  • road works with emulsifier, viscous oil, and shale bitumen;
  • waterproofing with high viscosity oil emulsifier for waterproofing work , including Roofing and hydraulic;
  • treatment with high viscosity emulsifier and natural and synthetic rubber ( latex ) for water-emulsion paints;
  • Special purpose (greasing of precast concrete parts in the manufacturing process, metal tool cooling in the machining and fabrication process, etc.).