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CONSTRUCTION WORLD
MARCH
2017
60
PRODUCTS & SERVICES
According to Hannes Engelbrecht, general
manager: inland at CHRYSO Southern
Africa, getting the best results requires
choosing the appropriate release agent,
as there are specific formulations for
all options including timber formwork,
manmade formwork and decorative
concrete, as well as wet or dry precast.
“It is false economy to just use the
cheapest releasing agent available,” says
Engelbrecht, “as the cost is relatively
low when compared to the value of the
formwork or mould. The CHRYSO
®
Dem
range ensures easy, clean release of the
formwork or mould from the concrete,
without damaging either.”
The products reduce the likelihood of
any imperfections and surface damage to
the concrete, such as blow holes, creating
more durable and attractive concrete
surfaces.
“It is important to remember that the
quality of the CHRYSO
®
Dem range ensures
there is no adverse effect on the adhesion
of subsequent finishes and coatings,” he
says. “This allows plaster, paint or other
coatings to be applied to the concrete with
Kemp has an NDT qualification from the
South African Institute of Welding (SAIW),
where he completed modules in Magnetic
Particle Inspection (MPI), Penetrant
Testing (PT), Ultrasonic Testing (PT) and
Radiographic Testing (RT).
He is accredited in terms of Welding
Inspections PCN Level 1 from the African
NDT Centre. Kemp’s experience has been
gained on BS EN (British European) and
AWS (American Welding Society) standard
NDT codes.Kemp commenced his career
in 2002 as an NDT assistant, progressing
to Site Supervisor and Site Manager at
Eskom’s Tutuka Power Station, and then
Site Manager at Kusile Power Station.
He has worked in a range of industrial
sectors, from power generation to mining,
steel, chemical plants, paper mills, and
cement and sugar factories.
His role as NDT Manager at Skyriders
is focused on constantly upgrading and
expanding the company’s inspection
service offering. Kemp is also involved in
training Skyriders personnel to become
multi-skilled in various NDT methods,
researching the latest developments and
technology, and maintaining and sourcing
new client relationships.
New NDT manager
Leading rope-access specialist
Skyriders has appointed Gerhard
Kemp as the Non-Destructive
Testing (NDT) Manager at its
eMalahleni branch in Mpumalanga,
tasked with overseeing the NDT/
inspection division.
Gerhard Kemp.
The CHRYSO
®
Dem range ensures easy, clean release
of the formwork or mould from the concrete, without
damaging either.
Releasing agents for every concrete purpose
Releasing agents are a valuable part of any construction project, ensuring
that concrete does not stick to formwork or moulds; the CHRYSO
®
Dem range
takes this technology another step forward with a brand to suit
every application.
no associated problems; the release agents
are also water repellent, so are not affected
by rain.”
These products do not have any negative
effect on the hydration of concrete as it
cures, and they are inoffensive to apply as
they have very little odour.
The range even includes a vegetable-
based, environmentally friendly release
agent – CHRYSO
®
Dem Bio 10 – which is
biodegradable and non-toxic, making it
safe to use in confined applications such as
mining and tunneling, or any other
poorly ventilated area.
Reducing blow holes is the specialty
of CHRYSO
®
Dem Elio LSM, with its low
viscosity oil lowering the surface tension
against the sides of mould and allowing
air bubbles to escape. CHRYSO
®
Dem Elio
SP is designed for dry precast spun pipe
production with the added benefit of the
release of dry concretes that have been
exposed to the high temperatures of steam
curing. CHRYSO
®
Dem Oleo FW is a mineral-
based release agent suitable for all types of
formwork on site.
“The CHRYSO
®
Dem range is a
fundamental change for an industry that is
accustomed to a one-size-fits-all approach
when it comes to release agents,” says
Engelbrecht. “It is also raising the bar
among users, who will now start to expect
better results.”
Releasing agents are a valuable part of any
construction project, ensuring that concrete
does not stick to formwork or moulds; the
CHRYSO
®
Dem range takes this technology
another step forward with a brand to suit
every application
The range even includes a vegetable-based,
environmentally friendly release agent –
CHRYSO
®
Dem Bio 10 – which is biodegradable
and non-toxic.