The WeedsWest Group consists of four complementary business lines that provide solutions to the oil, gas, water, and construction industries. The group includes companies that offer equipment, chemicals and additives, automation solutions, and metal fabrication. WeedsWest provides standard and customized equipment for bitumen emulsion and polymer modified bitumen production, as well as turnkey stationary plants.

2. Who we are?
The WeedsWest Group is made up of companies with complimentary
activities in the Oil&Gas, Water and Construction areas.
Currently, the Group integrates four business lines:
WWEquipment works side by side with its clients worldwide, offering a wide range of solutions to
the road pavement industry, guaranteeing the best results in a sustainable manner.
WW Equipment
standard and tailor-made equipment
WW Trading
chemicals and additives supply
WW Automation
turnkey solutions to industrial projects
WW Metalwork
engineering, cutting, prefabrication and welding
Conception
Manufacturing
Installation
Commercialization
Operation and
Management
Maintenance
Consultancy
Development of
global solutions
in engineering for
the road paving
industry.

3. Bitumen Emulsion Process Description
A bitumen emulsion is bitumen, which has been converted to a fine suspension of bitumen droplets
in water, usually by means of a high energy shearing device called a "colloid mill". These droplets
are prevented from agglomerating by the action of chemical emulsifiers which cause the surface
of the droplets to become charged and hence repel each other.
In emulsified form bitumen can be handled at ordinary temperatures and this eliminates the need
for expensive solvents as diluents.

4. Polymer Modified Bitumen Process Description
In the first stage, the hot bitumen is pumped at the required temperature (usually around 185ºC)
into agitated tank. The thermo-plastic rubber is added and stirred for and equal distribution. Following
the mix flows to the mill by gravity.
The mix is passed through the mill to physically reduce the thermo-plastic rubber particles in size
by mechanical shear, accompanied by a significant input of heat energy. This provides rapid and
efficient disintegration of the thermo-plastic rubber particles in the bitumen.
The modification process improves the final characteristics such as:
Lower Thermal susceptibility
Higher cohesion
Higher elastic response
Higher water resistance
Higher resistance to aging
The most common production configuration is the batch production where all chemical products
converge into a reactor followed by recirculation through a high share mill, to achieve homogeneity
and final properties.

5. iBitumen Emulsion Plant
WWEmulpav
WW Emulpav Bitumen Emulsion Production Unit is
reliable, highly efficient, compact and fully automatic.
The WeedsWest EMULPAV standard design plant guarantees a
standard production capacity of 15 ton/h depending on the
final product specification. For lower bitumen content
emulsions it can be up to 20 ton/hour.
FEATURES
V Soap System
V Production Unit
V Additives Dosing System
V Control System
OPTIONS
OPTIONS
O Cooling Exchanger
O Kerosene storage tank
O Emulsions storage tank

6. iBitumen Emulsion Plants
WWEmulpav 8 and WWEmulpav 12
WW Emulpav 8/12 Bitumen Emulsion Production Units are
reliable, highly efficient, compact and fully automatic.
FEATURES
V Soap System
V Production Unit
V Additives Dosing System
V Control System
OPTIONS
OPTIONS
O Hot Oil Boiler
O Cooling Exchanger
O Kerosene storage tank
O Emulsions storage tank
8

7. iPolymer Modified Bitumen Plant
WWModipav
WW Modipav Polymer Modified Bitumen (PMB) plant is
reliable, highly efficient, compact and fully automatic.
The WeedsWest MODIPAV standard design plant guarantees a
lots of possible capacity:
Double pass 8/10/15 ton/hour
Single pass 16/20/30 ton/hour
FEATURES
V Polymer/Rubber dosing
system
V Mill and Pre-Mixer Unit
V Dosing system
V Control System
OPTIONS
OPTIONS
O Pure bitumen storage tank
O Solid sulfur injection system
O Discharge pump
O Maturation tank
O PMB storage tanks

8. iPolymer Modified Bitumen Plant
WWModipav LC15
The WeedsWest MODIPAV LC15 plant guarantees a lots of
possible capacity:
Double pass 8/10/15 ton/hour
Single pass 16/20/30 ton/hour
FEATURES
V Polymer/Rubber dosing
system
V Mill and Pre-Mixer Unit
V Dosing system
V Control System
OPTIONS
OPTIONS
O Pure bitumen storage tanks
O Charge Pump
O Solid sulfur injection system
O Heat Exchanger
O Discharge pump
O Maturation tank
O PMB storage tanks

9. iStationary Plants
WWEmulstat and WWModis-
Regarding to each available space for this purpose and the
desired capacity per customer we can design, supply and
install complete solutions of bitumen emulsion and bitumen
modified by polymers units.
TAYLOR-
-MADE

10. Other Turnkey Equipment

11. Office, Warehouse & Production: Av. Parque Desportivo, 128 4505-688 Caldas S. Jorge, Portugal
Branches: Algeria / Kuwait / Morocco / Mozambique / Nigeria / Saudi Arabia
WeedsWest Global Solutions, S.A. Capital Stock: € 50.000,00 Porto C.R.C. - NIPC 509 888 364
www.weedswest.com | email. info@weedswest.com | tel. +351 256 910 200 Adding value to your projects