P A R C H E M C O N S T R U C T I O N S U P P L I E S

Concrete quality & durability

P: 1800 801 108 www.parchem.com.au

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PARCHEM extruded f ibre concrete spacers

Concrete quality and durability are increasingly important due

to the greater expectations of asset owners. The use of poor

quality, low durability spacers can seriously compromise asset

life. With nearly 50 years experience of manufacturing spacers

in our factories located in Europe and Internationally, Frank

manufactures extruded fibre concrete spacers to exacting

standards, using rigorously controlled mixes. This delivers

consistent durability and strength, which is independently tested

and certified.

All standard and Premium grade spacers comply with the

requirements of the new Eurocodes, relevant DIN, BS and

International spacer standards and the European Concrete

Societies Network “Best Practice Guide 3 for spacers. Premium grades can be adapted to specialist applications.

* Both grades are adapted for this application.

Quality you can trust: FRANK-manufactured spacers

Recommended profiles

Application Standard Premium

Structural elements with normal durability yes yes

Structural elements with higher durability no yes

Resistance to high level of sulphate no yes

Acid resistance (down to pH = 2) no yes

Approved for use with potable water yes* yes*

Resistance to fire yes yes

White cement or colour mixtures no yes

Specific customer requirements no yes

Block spacers AO type multi covered spacers offer the flexibility and choice of cover on site. AK types are single cover spacers for use on side forms with quick and easy installation.

Type AKA single cover spacer with two steel clips, ensuring no steel within the cover zone.

Used for supporting vertical reinforcement and due to the shape, has minimal surface

impact.

Type AO MulticoverSingle and multi covered arched based spacer for reduced contact area on vertical surfaces. Available with and without wire.

Bar spacersAll bar spacers are supplied in standard lengths of 330 mm**. The bar spacers are non-tipping and can be laid rapidly and efficiently. Due to their special profiles, FRANK bar spacers provide maximum contact area between the spacer and concrete for bonding.

Type FAHD (triangular)Application stability - Always provide the same concrete cover in any position.

Type FAHSBRail bars to support medium to heavy reinforcement. Reduced surface impact.

Type FAHKBBanana bars to support light to medium reinforcement. Minimal surface impact.

** Recommended max. length 330 mm, according to ‘Best Practice Guide 3’, but can also be supplied in 1.0 m lengths upon request.

Parchem Construction Supplies is proud to be partnering with Max Frank as

National Distributor of both standard and premium concrete fibre spacers in

Australia.

Technologies for the construct ion industry 3

PARCHEM extruded f ibre concrete spacers

We can manufacture spacers with a variety

of cover sizes and with many different

profiles. These can be individually produced

to meet your requirements. FRANK spacers

are designed to maximise the bond with the

concrete and where required, minimise the

surface impact.

Individually designed profiles to meet your requirements

Specification clause

All single and bar spacers shall be produced

in an ISO 9001:2000 approved factory from

extruded fibre reinforced concrete.

Spacer properties shall comply with the

product performance requirements of EN206

and the performance properties of the project

concrete.

The type of single or bar spacer to

be used is detailed on the drawings.

(Note: CAD drawings for all spacers are

available on request.)

High compressive strength and resistance to tipping

Fire resistant

Good dimensional tolerances and resistance to deformation

Excellent bond to concrete with no hairline cracks

Excellent physical and chemical resistance

Low permeability

Material quality Standard Premium

Concrete cover mm 15 - 100* 20 - 100*

Load-bearing capacity KN > 3 > 3

Performance Class Heavy Heavy

Compressive strength MPa 50 and above 60 and above

Permitted tolerances mm ±1 ** ±1 **

Water absorption after 30 min % < 3 < 2

Exposure Class EN 206-1 BS8500/EN206 AS/NZ3600

up to

up to up to

X0, XC3, XD2, XS2,

XF2, XA2 DC2 A, B1

X0, XC4, XD3, XS3,

XF4, XA DC4 A, B, C, U

Fire resistance classification EN 13501-1:2002

A1 - not flammable A1 - not flammable

I.S.A.T. (after 10 minutes) ml/m2/min < 0.5 < 0.25

Chloride diffusion m2/sec x 10-12 < 5.0 < 1.0

Contact adhesion MPa 0.4 0.4

* Other cover depths available upon request** Above 75mm cover tolerance ±2mm

The ability to choose the durability properties of

your spacers, as well

as the optimum profile ensures the ideal

solution for every project.

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PARCHEM Zemdra in ® CPF l ine rs

“What is vital is to strive to achieve the best in cover concrete: “best”

means excellent compaction without trapped air bubbles or bleed

water; it also means not allowing escaping water locally to increase

water-cement ratio, the prevention of leakage of neat cement paste,

and the avoidance of pocket marks and surface blemishes in general.

Achieving all this requires a concentrated effort during placing

and compaction as well as good quality formwork without blobs of

form-release oil on its surface. In this respect, controlled

permeability formwork seems to be beneficial, not

only because it gives a better finish but also because it leads to less

patching, which may be vulnerable to external attack.”

Professor Adam Neville [2006]

Using impermeable faced formwork coated in

release agent causes:

� Trapped air and water in the surface zone

� Softening and contamination of the surface zone

� No early age curing

This results in surfaces with:

� Blowholes and other blemishes

� Increased w/c ratio and reduced cement contents leading to reduced

durability

� Release agent contamination

The problem:

Oiled impermeable faced formwork

The solution:

Zemdrain® CPF liners

“In this respect, controlled permeability formwork seems to be beneficial...”

Using Zemdrain® CPF liners:

� Removes excess air and water from the surface zone

� Avoids the need for the use of a release agent

� Aids early age curing

This results in surfaces with:

� Virtually no blowholes or blemishes

� Decreased w/c ratio and increased cement contents leading to

improved durability

� No surface contamination

Oiled impermeable formwork

Design w/c

higher w/c without Zemdrain®

oiled formwork

Zemdrain® CPF Liner

Design w/cZemdrain®

lower w/c with Zemdrain®

Technologies for the construct ion industry 5

PARCHEM Zemdra in ® CPF l ine rs

� minimisation of blowholes (vertical & inclined surfaces)

� minimisation of biological growth as surfaces are

uncontaminated by release agent residues

� better cured due to early age curing

� improved durability with enhanced resistance to

carbonation, chloride ingress and abrasion

� Reduced w/c ratio

� Increased freeze/thaw resistance

� Proven economic benefits and cost savings over the whole service life.

The use of Zemdrain® considerably increases the potential service life of all

bridge, marine and water retaining

structures. The benefits of replacing impermeable formwork coated in

release agents with Zemdrain® are significant.

The benefits of Zemdrain®

to concrete surfaces:

Specification Clause:

� A Type III Controlled Permeability Formwork Liner (as defined

by CIRIA C511) shall be used to form the surface finish of all

designated concrete surfaces, Zemdrain® MD or equal

approved.

� The approved CPF liner shall have independently certified

supporting test data to confirm the following minimum

improvements to the outer 20 mm of the concrete.

- cement content of 75 kg/m3 greater than the

� control.

� - a minimum improvement of 50 % for surface tensile

strength, ISAT, carbonation and chloride ingress. Liners

without independent verification shall not be approved.

� The CPF liner shall be installed and used in accordance with

the manufacturer‘s recommendations. Release agent use is

not permitted.

� Type III, CPF liners can be reused, subject to inspection

between pours. Before approval for liner reuse is given,

evidence that durability benefits are maintained with reuse

must be submitted.

without Zemdrain® with Zemdrain®

This photograph was taken in a wastewater treatment plant after 10 years service. The superior performance of the Zemdrain® cast surface is obvious.

Zemdrain® lined steel formwork used to cast precast units for a sea wall.

Flat, concave, convex and circular formwork can be lined with Zemdrain®.

Parchem Construction Supplies is proud to be the exclusive distributor of Zemdrain in Australia and New Zealand.

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PARCHEM Notes

Technologies for the construct ion industry 7

If you require further information on any of the products in our range please contact us on:

Sales: 1800 801 108

Alternatively, up to date technical information is available on our website at:

www.parchem.com.au

PARCHEM Contact Us

Please recycle

Customer Service 1800 801 108National Head Office: 7 Lucca Road, Wyong NSW 2259 02 4350 5000

The range of products will vary by location so please contact your nearest store for the range of products in stock.

We’ve got the gear

you need

Beresfield 02 4964 4277

Coffs Harbour 02 6652 3599

Fyshwick 02 6228 1313

Narellan 02 4647 0623

Padstow 02 9771 6626

Penrith 02 4722 9259

Riverstone 02 9627 9133

Tuggerah 02 4352 2287

Wetherill Park 02 9756 5494

Arundel 07 5500 5600

Brendale 07 3889 7600

Gladstone 07 4978 0128

Morningside 07 3902 2300

Springwood 07 3808 8133

Townsville 07 4779 4750

Belmont 08 6279 9799

Berwick 03 9796 1027

Brunswick 03 9380 2400

Campbellfield 03 9308 6133

Dandenong 03 8710 7000

Hindmarsh 08 8241 6000

www.parchem.com.au

New South Wales Queensland

Western Australia

Victoria

South Australia

P: 1800 801 108 www.parchem.com.au

Parchem is dedicated to customer service so please contact us for more information about our range.