Articles by: dannik

All posts by dannik

Webinar “Production of Modified Bitumen: the Modern Approach”

June 8, 2021News

Dear associates! You are invited to participate in another free GlobeCore webinar themed as “Production of Modified Bitumen: the Modern Approach” which will take place on July 21–22, 2021.

At this webinar, we will discuss the following matters:

advantages and special features of using modified bitumen;
technical specifications and quality of road bitumen;
technology and equipment for modified bitumen production.

Webinar dates

Date: July 21, Wednesday

Russian — 11:00 AM GMT +3 (for Moscow);
Turkish — 02:00 PM GMT +3 (Istanbul Saati);
English (North America) — 11:00 AM in Eastern time (US and Canada) GMT – 4 (New York local time).

Date: July 22, Thursday

English — 02:00 PM GMT +8 (Hong Kong local time);
Spanish — 08:00 AM GMT- 6 (Hora de Costa Rica);
Portuguese — 02:00 PM GMT +1 (Hora de Luanda);
French — 01:00 PM GMT +2 (Heure de Paris).

Platform: Zoom (one-click registration)

Duration: 60 minutes

Registration Link: globecore.com/register

A New Bitumen Emulsion Complex Commissioned in the Capital of Ghana

August 5, 2019News

For a month (8 June to 8 July this year), GlobeCore engineers visited Accra (Ghana).

The engineers assisted with assembly and commissioning of a full scale bitumen emulsion production complex there. An important part of the complex is GlobeCore equipment for the production of cationic or anionic bitumen emulsions. Note that our company also manufactures storage containers for bitumen emulsions and modified bitumen, bitumen filters and laboratory equipment for the development of binding material formulas. The bitumen emulsion produced complies with quality standards and is successfully used in road construction and repairs. Commissioning was combined with training of the customer’s personnel to operate the equipment.

A similar GlobeCore bitumen emulsion complex has been commissioned in Ghana previously. The facility has been running successfully for two years; the new facility further increases the bitumen emulsion production in this country.

Commissioning of a UVB-1 Unit in Myanmar

July 17, 2018News

On 8 – 13 July 2018, GlobeCore officers visited Myanmar.

The visit was to commission an 8 cubic meter per hour UVB-1 bitumen unit and to train client personnel. This unit is designed for production of cationic and anionic bitumen emulsions, and will be operated in a suburb of Yangon.

The UVB-1 features semi-automatic operation and is equipped with a water phase section, emulsion preparation section, controls and piping to supply water phase solution and thinner. Bitumen emulsion made with GlobeCore equipment fully comply with international quality standards.

Bitumen emulsion and bitumen modification units are available from our company; to receive information or make an order, please refer to the contacts page of our website.

GlobeCore equipment started in Kazakhstan

May 18, 2018News

Road traffic grows rapidly by the year – along with the physical loads on the road top.

This requires the use of economical high quality materials and reliable technologies for road construction and repair. Bitumen emulsion fit the bill perfectly, with several significant advantages over the usual “hot” technologies (efficient use of energy, extension of road construction season, economizing of binding materials etc).

One of the latest startups took place in the city of Kokshetau, Kazakhstan. A 2 m3/hour UVB-1 unit was commissioned on 10-15 May.

You can order bitumen emulsion production and bitumen modification equipment for various production rates and in various designs (containerized, framed, mobile or stationary) from our company. To receive more information, please refer to one of the contacts in the corresponding page of our web site.

Increasing productivity of existing bitumen-emulsion plants

January 18, 2018News

Dear Valued Customers! We would like to remind that GlobeCore provides an opportunity to increase the existing bitumen-emulsion plants performance by introducing an additional block. It has the potential benefits in the form of efficiency and functionality.

It allows to raise the productivity of both GlobeCore plants and plants of other manufacturers. One such project was implemented in Thailand, where the existing equipment was complemented with a water phase extension section.

For questions and inquiries please contact our managers by tapping the contacts.

New adaptable in design UMB-6 plant: provides high quality modified bitumen

September 15, 2017News

Modified bitumen is widely used in road works for construction and repair of road surfaces, also in waterproofing buildings and structures, roofing and pipeline protection.

GlobeCore design department has developed a new UMB-6 plant for mixing in circle of modified bitumen (productivity 6 m3 / h). The design and dimensions of this equipment were adapted for shipping containers by road and by sea. This new plant was a success.

A UMB-6 plant can use any existing additive (in powder, solid, liquid). The bitumen and additives pass through a colloid mill twice in one production cycle which improves the quality of the product without loss of productivity and simplifies the design. It also reduces the number of bitumen pumps, respectively. There are two: one for pumping in, and the other for a colloid mill and pumping out.

If you are interested in purchasing a UMB-6 bitumen modification unit, you can contact one of the contacts.

UVB-10PK Bitumen Complex Commissioned in Ghana

September 4, 2017News

GlobeCore team successfully completed all works according to the contract to supply and commission a UVB-10PK bitumen complex, including operating personnel training.

The main feature of this equipment is versatility. The UVB-10PK can accept and prepare bitumen for further use, produce, store and output all types of bitumen emulsion. This optimizes the time and labor costs of automobile road repairs and construction.

Provided a duly prepared site is available, the bitumen complex can be deployed within two weeks (including commissioning time). Only one operator is required to control operation in normal operation modes (although using hot bitumen and heat carrier makes two operators a better solution).

Other advantages of the UVB-10PK is its ability to perform several operation at the same time and automation of all operating modes. The operator simply selects the mode and starts/stops the equipment.

Improving Bitumen Properties with Additives

March 30, 2017Solutions

Bitumen properties. Petroleum bitumen is widely used in construction. It is due to the versatility of this binding material. And it is successfully used in road works, roofing, waterproofing, sealing, for protection of pipelines, canals etc.

But when used in cold weather conditionsб bitumen becomes brittle, which leads to the rapid failure of bitumen coating. This leads to excess expenditure of bituminous materials. Also, bitumen aging is intensified by sunlight and temperature fluctuations.

The solution is the introduction of additives that can improve the performance properties of road bitumen. For example, adding rubber into bitumen reduces brittleness while increasing temperature and heat resistance. The use of polymers for bitumen modification improves the durability of pavement. These conclusions were made by a long-term observation of the road surfaces dressed with modified bitumen. Also, modifications improve bitumen resistance to deformation at low and high temperatures, water resistance, durability and other characteristics.

First, the use of polymer additives to improve the properties of bitumen was explained by chemical bonds between bitumen and polymers. But the infrared analysis showed the absence of new bonds in bitumen-polymer compositions.

The electron microscopic analysis and optical analysis showed the particle distribution of bitumen and polymer. It was noted that a small portion of polymer (1-2%) dissolves in bitumen oils with low molecular weight. Adding 5-10% of polymer increases particle size due to aggregation, 10-15% of polymer produces a cross-linked structure. When the polymer content exceeds 25%, the bitumen enters the polymer cell structure.

In addition to polymer additives, bitumen cracking resistance is improved by adding oil or oligomers, also called plasticizers, which enhance bitumen properties at low temperatures.

Bitumen Roofing Materials

February 13, 2017Solutions

Bitumen Roofing. Bitumen has been used roofing for many years. Bitumen-impregnated cardboard is the most popular due to its relatively low cost and versatility: this material can be used not only for roofing, but also for waterproofing.

Rolled bituminous materials absorb water quite well and cannot guarantee completely watertight seals. So roofs are made of 3-4 layers of bituminous material.

If the seals are not watertight, water accumulates in the spaces between layers. At subzero temperatures, water expands the already existing microcracks, breaking the roof cover.

The expected time between roof construction and its first repairs is 2-3 years. Repairing the damage is also complicated. This is due to the fact the the location of the water between the layers very seldom coincides with the location of the leak. Every time the number of layers increases, but they gradually break in the cycle of freezing and melting of ice. With time, the costs of repairs exceed the costs of construction and continue growing.

To improve cold resistance and elasticity of a soft roof, special SBS modified bitumen is used. This material is bitumen with a special artificial rubber additive.

A soft roof made with SBS-modified bitumen is stable to high temperatures and UV, and also retains its elasticity at subzero temperature.

GlobeCore has developed and manufactures the UVB-2 type units for bitumen modification. Bitumen produced by this machine fully meets the requirements to roofing and waterproofing operations. UVB-2 units can be used either outdoors under a canopy or indoors in well-ventilated structures.

Modification of Bitumen as a Method to Improve Performance

February 13, 2017Solutions

Modification of Bitumen. The performance of bitumen in road construction can be improved in two ways. First, to improve the production process. Second, to mix bitumen with special additives. At the production stage, tar oxidation is often improved. IT is difficult to do without the process, but it alone is not sufficient. Improving tar oxidation cannot achieve the results required of the modern bitumen materials.

Bitumen application experience shows that the time when bitumen can be used is defined by the time when bitumen remains plastic, i.e. the difference between softening and brittle points. To increase this interval, it is reasonable to reduce settling point and increase softening temperature of the medium.

This can be achieved by one of the following techniques:

mix bitumen with large amount of asphaltene with products containing low molecular aromatic oils with low viscosity and low settling point. Such oils are extracts from selective oil purification, tower bottoms, deasphalting asphalts, etc;
oxidize molten bitumen with air. One drawback of the method is that undesired free bonds form in the reaction, which react with ozone and become the centers of binder destruction;
oxidation by phosphorus oxide or iron chloride. These substances act as catalysts, forming complexes with polar molecules present in asphaltenes and resins. These complexes are poorly soluble in bitumen and form a colloid structure;
Modification of bitumen by special fillers, stabilizers, plasticizers, synthetic polymers etc.

Using fillers improves the strength of road construction bitumen, but reduces plasticity and elasticity of the bitumen compounds. It also increases material viscosity. Antioxidants may be added to bitumen to reduce aging; antipyrene improve fire resistance.

The addition of plasticizers reduces bitumen viscosity and improves its stability in cold weather, stretching and water resistance. At the same time, this additive reduces heat resistance of bitumen. Some of the plasticizers used are transformer, spinning oil, diesel fuel and other oils.