Post on 04-Apr-2018
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Geocomposites
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Geocomposites are prefabricated drainage products which
directly replace conventional granular fill. They normally consist
of at least two different components; a three dimensional
polymer core, which acts as the transport medium, and a geotextile
filter fabric which allows liquids to pass into the core but prevents
the surrounding fill from washing in and clogging the core.
Geocomposites need to meet the following criteria
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Terram Geocomposites are proven to stand the test of time,
establishing an impressive track record with extensive use in civil
and architectural projects across the world for over forty years.
Selecting Terram Geocomposites offers many benefits
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BESPOKE MANUFACTURING
Terram has a broad range of off the shelf geocomposite products
to cover most applications. However we are proud of our ability
to manufacture bespoke products to suit specific applications for
your project.
At Terram we have forty years of experience of manufacturing
geosynthetics for demanding applications throughout the global
civil engineering industry. We know how important it is that the
materials you choose to use will perform consistently and reliably
throughout the life of the project.
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geosynthetics that harnesses our extensive knowledge of a
wide range of geosynthetic solutions and marries their specific
properties to solve your problem.
Geotextiles, geogrids and geomembranes are just some of the
products that have combined into geocomposite products
answering the specific problems of our customers; whether it
be soil reinforcement, ground stabilisation, filtration, drainage,
protection or erosion control.
Our technical development team will work with you to develop
your bespoke solution in our facility in South Wales. The product
is developed to your specification then tested to ensure product
performance before being signed off for use in your application.?\oekh[dejikh[m^Wjif[Y_YWj_edoekd[[Zj^[dekhj[Y^d_YWb
team will work with you to understand the problem before
developing the solution.
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Terram Geotextile : Needlepunch.
Needlepunch : Terram Geotextile : Needlepunch.
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Waste management is a demanding environment for
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management drainage requirements, the drainage system must
be capable of draining aggressive liquids and venting volatile
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a vital requirement.
Geocomposites applied to slopes and loaded with fill material,
are subjected to in-plane shear forces; therefore the method
of bonding the core to the geotextiles is also an importantconsideration. All Terram Geocomposites are thermally bonded
to ensure the best join between the constituent materials
and to minimise shear failure.
Terram Geocomposites offer solutions in both landfill capping
and landfill lining applications, effectively replacing traditional
stone drainage layers.
Landfill Caps
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capping membrane and a gas collection layer below. Terram
Geocomposites can be used in either application and offer both
reduced cost and higher, factory constant, performance than
traditional solutions, such as crushed stone.
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collecting and draining any rainwater from the overlying soils.
This will help prevent the overlying soils destabilising through
saturation and, with correct design, assist in protecting the
capping layer from damage or failure.
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provide a free passage for the movement of potentially dangerous
harmful landfill gases, which can then be collected or dispersed.
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polymeric drainage cores, provide protection to possible
damage of the liner from sharp materials within the waste.
WASTE MANAGEMENT
Typical applications include:
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TERRAM GEOCOMPOSITES IN LANDFILL CAP APPLICATION
Gas venting/collection system
Terram Geocomposite
Terram Geomembrane
Terram Geocomposite
Capping soilsWaste
Perforated drainage pipe
Manifold collector pipe
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Basal Landfill Liners
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Terram Geocomposite, more volume for waste is created
within the landfill. Terram Geocomposites installed beneath the
basal lining system will form an effective drainage system for
groundwater, helping prevent many problems associated with
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Leakage Detection
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secondary liners forms an effective leak detection system that
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capacity to collect the discharge until the leak is repaired.
Design Considerations
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Environmental Protection
Terram Geocomposites installed over contaminated soils and
below clean fill, form a capillary break preventing contaminated
water rising to the clean soils; they also form a horizontal
drain that permits the lateral drainage of infiltrated rainwater
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STRUCTURAL DRAINAGE
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or vertical applications, Terram Geocomposites have a time
proven record on projects undertaken by major organisations.
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fabric to the specific application means Terram Geocomposites
offer the perfect blend of drainage capacity and protection.
Quick, easy to handle, efficient and cost effective drainage
systems are necessary in areas of construction such as basements,
culverts, car parks, reservoirs and many other structural andsubsurface applications.
Slopes and Embankments
The drainage function in stabilised earth embankments is
as important as the reinforcement design; drainage at the
toe and crest as well as behind the structure is an important
consideration. Terram offer a range of products suitable for
reinforcement that work effectively with Terram Geocomposites
in the drainage application to offer a total solution for
slope stabilisation.
Typical applications include:
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Concrete retaining
structure
Soil backfill
Terram Geocomposite
Perforated collector pipe
Pavement
Soil backfill
Screed
Shingle
Terram Geotextile filter
Terram Geocomposite
Soil backfill
Terram Geotextile wrapped
perforated land drain
Concrete slab
Blinding
Surface runoff Surface drain
Watertable
TerramGeocomposite
Trench backfill
Porous pipe
Terram Geotextile
Slope
RETAINING STRUCTURES
BURIED STRUCTURES
SLOPES AND EMBANKMENTS
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Retaining Structures
To maintain the stability of a retaining structure it is
important to provide an efficient drainage system behind it.
Terram Geocomposites reduce pore water pressures. This enables
threatening saturated ground conditions to be avoided. Simple
and fast to install, this system cuts the cost of conventional
drainage systems and gives superior performance.
Buried Structures
Terram Geocomposites installed against the external faces of
a buried structure will form a highly effective drainage system
for groundwater. They replace traditional free draining stone
backfills and allow excavated materials to be used as backfill
thus offering savings in terms of materials both imported and
exported from site.
Tunnels
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seepage problems encountered in tunnels.
The Terram Geocomposite intercepts groundwater seepage
between the rock face and the concrete tunnel lining which
is then transported away in a perforated drainage pipe.
SUDS
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as most applications are horizontal. The Terram geocomposite
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resistance to creep. Their use reduces manpower and minimises
the need for heavy materials making them ideal solutions for
these applications.
Concrete lining
Perforated pipe
TerramGeocomposite
Vegetation
Terram Geocomposite
Concrete roof deck
150 - 1500mm substrate
Insulation
Terram RootGuard
GREEN ROOF SUDS
TUNNELS
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Geocomposite drains are used extensively in a number of
applications within highway projects. They offer significant
savings to the contractor in terms of both cost and time.
Geocomposite drains directly replace traditional stone drainage
designs; these are increasingly expensive and cause damage to
the environment, as stone has to be quarried and transported to
site. The excavated materials are often carried from site, normally
to landfill; using space saving geocomposite drains means these
arisings can be used for backfill, offering further savings.
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order to maintain the desired moisture content within the base
and sub-base layers.
The use of the geocomposite fin drain system in this application
provides a fast installation and saves on excavation and backfill.
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Frost protection
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AFiberweb plccompany
Terram Limited
Mamhilad, Pontypool, Gwent
NP4 0YR, United Kingdom
tel+44 (0) 1495 757722
fax+44 (0) 1495 762393
email info@terram.com
www.terram.com
Registered office as above
Registered in England no 2254236
VAT no GB 888 1788 50
FM 22730
TECHNICAL SUPPORTA full range of product data sheets, case studies and project
information request forms are available from Terram technical
support or as downloads from the Terram website. www.terram.com.
IMPORTANT NOTICEThe information contained herein has been prepared in good
faith and is, to the best of our knowledge, accurate in all material
respects. However, it does not purport to be comprehensive and
since the circumstances and conditions in which such information
and the products discussed herein can be used may vary and are
beyond our control, no representation or warranty, express or
implied, whether of merchantability, fitness for purpose or against
patent infringement or otherwise, is or will be made and no
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any of its affiliates or its or their respective directors, officers,
employees or agents in relation to the accuracy or completeness
or use of the information contained herein or any such products
and any such liability is expressly disclaimed.
The information contained herein is offered free of charge and
we give no undertaking to provide any additional, updated or
corrected information.
This brochure is printed on Revive 100 uncoated paper, which is
FSC certified as containing 100% post-consumer reclaimed material.