Fibertex
geosynthetics solutions encompass Controlled Permeability Formwork (CPF)
liners, designed for concrete surface enhancement in harbour infrastructure
projects.
“The
main functions of Formtex® CPF liners at harbours and ports are to improve the
durability of a concrete structure, to extend its service life and reduce
maintenance costs,” says Clive Hitchcock, CEO, Fibertex SA. “Typical
applications for this material include bridges, tunnels and marine structures.
“Degradation
of concrete structures is normally accelerated by the effects of salt water,
high temperature and increased CO2 levels in the air. However, Formtex design
features ensure that project requirements, demanding a service life of concrete
of more than 120 years, are adhered to.
“Apart
from harbour projects, these liners are also used in water treatment plants,
drinking water tanks, as well as dams and sluices.”
Formtex
is a two-layer CPF liner, consisting of a drainage layer that allows water and
air to escape and a filter layer with a pore size designed to retain cement
particles. When surplus water and air is drained from the surface of the
freshly poured concrete during compaction, the water/cement (w/c) ratio in the
concrete cover is reduced. This results in a denser and stronger concrete, with
a blemish-free surface.
Formtex
CPF liners, which are suitable for the rounded shape of concrete elements, are suitable
for use in the casting of bridge pillars and bridge spans, to ensure high
quality, durability and low maintenance of the concrete elements that need to withstand
highly aggressive environments.
Formtex
also reduces the formation of blowholes and other blemishes on the concrete
surface that normally require extensive deburring after the formwork is removed.
The smooth, dense and strong concrete cover is dust-free and because there are
no release agents, it is an ideal prepared base for further surface treatment
or coatings.
fibertex-formtex-cpf-liners-concrete-surface enhancement-harbour-infrastructure…two
Formtex
CPF liners, which reduce micro bacterial growth, are a highly efficient
alternative to slip agents for fresh water supply structures. CPF liners also
minimise the penetration of graffiti media, making it easy to remove from a
surface.
Formtex
is designed for tensioned, glued or self-adhesive mounting to vertical or
inclined surfaces. Once Formtex is attached, concrete casting is performed as
usual. These liners can easily be removed from the concrete during formwork
striking.
The
Fibertex geosynthetics range encompasses nonwoven and woven geotextiles,
gabions and mattresses, drainage pipes and fittings and erosion control and
cellular confinement solutions. The company also supplies soil reinforcing
products, including geogrids and geocells, as well as geosynthetic clay liners
as part of composite lining systems in modern landfills.
Fibertex
products are manufactured to consistent quality standards at all production facilities
globally and are supported by a technical advisory and back-up service.
Fibertex
manufactures the only nonwoven UV stabilised virgin PP geotextiles in Africa,
with certification for durability of over 100 years.
Suggested
Caption
Fibertex geosynthetics solutions encompass
Controlled Permeability Formwork (CPF) liners, designed for concrete surface
enhancement in harbour infrastructure projects. The main functions of Formtex®
CPF liners at harbours and ports are to improve the durability of a concrete
structure, to extend its service life and reduce maintenance costs. Typical
applications include bridges, tunnels and marine structures.
Apart from harbour projects, these
liners are also used in water treatment plants, drinking water tanks, as well
as dams and sluices.
For further information Clive Hitchcock,
CEO, Fibertex South Africa (Pty) Ltd
16 Van Eck Avenue, Hammarsdale, 3700
Telephone (031) 736 7100 Email CAHI@fibertex.com Web www.fibertex.com
Released by Lindy Morton, Festivitas 083
268 6666 e-mail : festivitas@dbnmail.co.za
June 2019
