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Rubber is a natural polymer of Isoprene (usually cis-
Rubber is also known as an elastomer.
It can be defined as a sticky, elastic solid
Produced from a milky liquid known as latex
Produced artificially Synthetic rubber.
Types of Rubber
Coagulated by weak acetic acid
after removing the impurities.
It is then passed through rollers
to get creep rubber.
It is then processed to get
commercial rubber compounds.
General purpose synthetic rubber
Stryene Butadiene Rubber (SBR)
Special purpose synthetic rubber
Have special qualities to suit
Characteristics of rubber
Acid & alkaline resistant
Doesn’t conduct to heat
Chemically Resistant to many fluids including many water, weak
acids & alkalis
Poor conductor of heat & electric
Consists of isoprene molecules fitted together in loosed chains
Consisting long chains of one or more type of molecules
Contain long chains of hydrogen and carbon molecules
Rubber go through vulcanization through adding sulfur which result
in a hard, durable material with great mechanical properties.
This create a chemical links between the chains.
Rubber has many uses that makes rubber & recycled rubber
products a valuable sustainable material.
Rubber is being used as repairing material in United States
Pave roads & bridge
Surface of roads are upgraded with ground rubber material
Playgrounds with rubber flooring
Not only safer but its own aesthetic value
Used & re-purposed for protective gear
Create fibers for clothing & outerwear
Lower the budget in construction
Green Materials/ Eco Friendly Materials
Rubber is produced naturally which is a definite green
material as rubber recycling has become more
There is market demand which keeps vast amounts of
rubber out of landfills
Importance of Recycled Rubber
Reclaiming & recycling rubber uses less energy than
producing a new rubber.
Recycling rubber reduces the demand for new
natural rubber which may keep rubber tree
plantations from expanding into sensitive tropical
Keeping rubber out of landfills protects
environments as well as human health
Tire fires in landfills will cause pollution & pose a
significant safety hazard.
Can be obtained in different types of color
Have great eye appeal
Easily shaped, hence allow designer to create
Can also be engineered with antimicrobial
Forming cross-link between polymer chains
Less sticky, more durable
Tires, shoe soles, hoses, conveyer belts & hockey pucks
(Hard vulcanized rubber)
Bowling balls, saxophone mouth pieces
Can be called ebonite & vulcanite
Nature of the rubber
Can be compressed & stressed
NON reactive to acid & alkaline
Heat & electrical insulator
FIRE & BURN
• Strong, rough & resilient
against a variety of
• Can last longer with proper
• Soft to touch
• relieve stress fatigue
associated with standing
or walking for long periods
• Safety of children
• Resistant to burns
• Non toxic
• Will not release noxious fumes
into the air in case of fire.
• Depends on the thickness
• Can act as a powerful sound
• Better choice as environmental
impact is concerned
• Rubber materials have
high initial cost.
•Dirt will builds up easily on rubber
•Needed to cleaned it often to be
•Have a very distinct odor that
isn't pleasing to everyone.
•Will dissipate in time in
• Resistant to most staining
•Detergent & other abrasive
cleaning liquid which may
• Grease will have a drastic
negative effect if not wiped
Used to a large extent in public and
industrial buildings because of their good
wearing qualities, resiliency (i.e., elasticity)
and noise insulation.
Made up of pure rubber mixed with fillers,
such as cotton fibre, granulated cork or
asbestos fibre and the desired colouring
Manufactured in the form of sheets or tiles,
in a variety of patterns and colours.
Most all rubber-based glues and bonding agents are made of
rubber mixed with other compounds.
Suited as a bonding element because of its flexibility.
Some types of bonding compounds made with rubber are
used as sealants.
However rubber adhesive is extremely flammable.
It is not suitable for bonding in high temperature situations
It is generally used where dampness is an issue because of its
might be damaged by other solvents, such as oil and grease,
and not suitable for bonding heavy pieces.
Used extensively in standard construction
applications, buildings & structural steel bearings
Synthetic fibres are added to the base rubber
compounds to create an internal stiffening like steel
This mesh structure delivers enhanced
tensile & compressive
Rubber bearing pads has been used in:
Bridge bearing masonry pads
Handrail bearing pads
Pads between steel beams, girders, grates & columns
Pads between bridge and roof beams and substructures
Shock and vibration isolation
Heavy equipment mounting pads
Railway tie pad applications
Pads underneath concrete vaults
A mid-structure separation which designed to relieve
stress on building materials caused by building
Thermal expansion & contraction caused by
Sway caused by wind,
It marks a gap through all building assemblies
including walls, floors, decks, planters & plazas, etc.
because the joint bisects the entire structure.
Used to bridge the gap & restore the building
assembly functions while being able to accommodate
the expected movements.
Both natural & synthetic rubber is not widely use
in the construction industry.
However, it is mainly used in household &
Therefore, rubber industry have a bright future
for rubber industry.
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