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Pavement joint grout

PCI Pavifix® 1K Extra

Technical Data Sheet 265Edition April 2017

for natural stone and engineered stone

PCI Pavifix 1K Extra is suitable to grout paversand flagstones from natural stone and artificialstone as well as clinkers and narrow joints from3 mm.

For floors.

For outdoor use.

For joint width from 3 mm.

For water-permeable grouting of

mosaic pavers, small pavers, large

pavers as well as flagstones from

natural stone, artificial stone, outdoor

ceramic and clinkers.

For natural stone slabs insensitive

to staining!

Only suitable on water-permeable

substructures!

For floor surfaces in private areas

exposed to pedestrian traffic and

occasional vehicular traffic such as

parking lots, garden paths, garage

entrances and terraces.

Fields of application

Also suitable for wet grouting artificial

stone pavers and flagstones.

Can be wet grouted, therefore high

filling volume even with narrow joints.

Single component, ready

for immediate use.

Wear resistant, permanent resistance

to weathering, material does not get

flushed out.

Crack-free curing and setting without

shrinking.

Water permeable, accumulated water

(e.g. rain) quickly trickles into the

ground. The surfaces are not

completely sealed.

Resistant to frost and weathering.

Features and benefits

Technical Data Sheet


Material

Application

* At +23°C and 50% relative humidity. Higher temperatures reduce, lower temperatures increase the times given.

Material base ready-to-use sand mixture with polybutadiene binding agent

Density approx. 1.7 g/cm³

Colour beige, grey and anthracite

Storage dry, no permanent storage over +30°C

Shelf life in closed unit min. 18 months

Packaging size 25 kg unit (evacuated aluminium bag in pail)colour beige, stock no. 1020/4colour anthracite, stock no. 1022/8colour grey, stock no. 1021/1

Consumption (at 30 mm joint depth and 5 mm joint width)- mosaic pavers (6 x 6 cm) approx. 8.5 kg/m²- small pavers (10 x 10 cm) approx. 5 kg/m²- large pavers (16 x 16 cm) approx. 3.1 kg/m²- flagstones (30 x 30 cm) approx. 2.0 kg/m²

Joint width from 3 - 50 mm

Joint depth

- when exposed to pedestrian traffic min. 30 mm- when exposed to vehicular traffic min. 40 mm- when bedded in PCI Pavifix DM min. 15 mm

Processing temperature +5°C to +30°C (substrate temperature)

Proccessing time* approx. 45 minutes

Curing times*

wet grouting

- walkable after* approx. 30 hoursjoints filled by means of a rubber float

- walkable after* approx. 24 hours- able to bear weight after* approx. 3 - 7 days

Temperature resistance -20°C to +60°C

Technical data

Beige** Subject to variations in colour due to print.

Grey* Anthracite*

Colours

The substructure must be water-

permeable!

The entire pavement structure must

comply with the actual stress

demands and rules of technology.

In case of exposure to moderate

loads, installation can be carried out

in sand, lava or stone chippings; it is

important to thoroughly compact the

substructure when laying the pavers

on stone chippings, pavers must be

embedded in the stone chippings up

to approx. 1/3, if necessary stones

can be supportively fixed by adding

crushed sand. In general: joint grouts

cannot compensate strong

movements of pavers and flagstones.

In case of exposure to heavy loads,

installation is to be carried out in

bonded construction e.g. with PCI

Pavifix DM drain mortar.

A bonding slurry with e.g. PCI

Flexmörtel S2 Rapid must be applied

to the reverse of ceramic flagstones.

Place flagstones in a drainage mortar,

e.g. PCI Pavifix DM. Joints must be

water permeable after the installation!

Preparation of substrate



Required joint depth

- when exposed to pedestrian traffic:

minimum 30 mm

- when exposed to vehicular traffic:

minimum 40 mm

It is important for the reconstruction

of existing pavements to obtain the

required joint depth by blasting the

joints clean and to remove any

contamination from the stone sides.

Thoroughly pre-wet the surfaces

and sides of pavers or flagstones

until the covering can no longer

absorb water. Repeated pre-

wetting might be necessary!

Special care must be taken in case

of rough surfaces and at high

outside temperatures. Do not allow

the surface to dry up during the

application. We recommend to

repeat the pre-wetting process

depending on the ambient

temperatures.

Preparation of substrate

Joints from 3 - 8 mm

�1 Using a hard rubber broom, press PCI

Pavifix 1K Extra into the joints by

applying pressure. Make sure that joints

are completely filled.

�2 Then actively support the filling of the

joints by means of water from a hose.

Guide the water jet along the joints if

they are very narrow. Slumped joints

can be immediately filled with fresh joint

grout. Make sure that joints are

completely filled.

The remaining grout on the pavement

surface must be thoroughly removed

with a soft broom (e.g. coconut

broom) working diagonally across the

surface preventing the joints from

being washed out.

Joints from 8 mm

�1 Using a hard rubber broom, press PCI

Pavifix 1K Extra into the joints by

applying pressure. Make sure that joints

are completely filled.

�2 The remaining grout on the pavement

surface must be thoroughly removed

with a soft broom (e.g. coconut

broom) working diagonally across the

surface preventing the joints from being

washed out.

Fresh, unused material (no residues of

grout) can be filled into the container

and covered with water up to the

thickness of a thumb. Use up this

material within max. 4 weeks. At the

time of application, apply material to

the surface by adding water and

install as described above.

Application procedure of PCI Pavifix 1K Extra

Thoroughly pre-wet stone surface and joint sides before grouting. Cut vacuum bag open and pour fresh material onto the surface.



Press PCI Pavifix 1K Extra into the joints using a hard rubber broom. Support the filling of joints from 3 - 8 mm by means of water from a hose.Guide the water jet along the joints if they are very narrow. Fill slumpedjoints immediately with fresh material.

Remove all grout residues with a soft broom.



Wear suitable protective gloves and

eye/face protection during the

application.

Do not apply at temperatures below

+5°C. The best temperature for

grouting with PCI Pavifix 1K Extra is

between +15°C to +20°C.

Clean tools with PCI Univerdünner

universal thinner immediately after

use; when the product has cured it

can only be removed by mechanical

scraping.

Depending on the surface conditions

it might be possible that different

colour effects occur (e.g. intensified

colour, slightly shiny surface) at the

contact points of PCI Pavifix 1K Extra

binding agent and stone surface. This

especially applies to light-coloured

and open-cell stones. These colour

effects can be practically avoided by

pre-wetting the surface! Should a

shiny film still be visible it will fade

after a while. Due to the variety of

stone types currently available on the

market a general statement on the

colour effect cannot be made.

In case of coverings with chamfer

only fill the joint up to the lower edge

of the chamfer. The area of the

chamfer is not allowed to be filled

because otherwise the material might

break open here.

Protect grouted areas from driving

rain!

Loads acting on the pavement due to

utilisation can cause the paver to

separate from the joint grout.

Please follow the recommendations

issued by the manufacturer of pavers.

Not suitable for paths and/or road

areas exposed to trucks and/or

busses.

In case of higher loads acting on the

pavement it is required to carry out

grouting with PCI Pavifix PU. Please

contact the PCI technical help-line.

The permeable joint should be

cleaned to prevent the growth of

green algae on the pore space.

Cleaning with high-pressure water jet

(no earlier than 7 days) should only be

done with a flat fan nozzle. Distance

of nozzle to the substrate at least

20 cm. Do not use road sweepers for

cleaning.

PCI Pavifix 1K Extra develops a

noticeable characteristic odour during

the curing phase and/or after being

exposed to wetness.

Please note

Keep out of reach of children. Avoid

contact with eyes and skin. Wear

suitable protective gloves (e.g. cotton

gloves soaked in nitrile). In case of

contact with skin immediately wash skin

with plenty of water and soap.

For further information: see PCI Material Safety DataSheet.

Information on the safe use

Technical Data Sheet No. 265 (April 2017), Any subsequent publication supersedes this edition. German edition October 2016; the latest edition is always available on the Internet under www.pci-augsburg.de

PCI Augsburg GmbHPiccardstr. 1186159 AugsburgP.O.B. 10 22 4786012 AugsburgGermanyTel. +49 (821) 59 01-0Fax +49 (821) 59 01-372www.pci-augsburg.de

In view of widely varying site conditions and fields ofapplication of our products this technical data sheetis meant to provide general application guidelinesonly. This information is based on our presentknowledge and experience. The customer is notreleased from the obligation to conduct carefultesting of suitability and possible application for theintended use. The customer is obliged to contact thetechnical help-line for fields of application notexpressly stated in the technical data sheet under"Fields of Application". Use of the product beyondthe fields of application as stated in the technicaldata sheet without previous consultation with PCIand possible resulting damages are in the sole responsibility of the customer. All descriptions,

drawings, photographies, data, ratios, weights a.o.stated herein can be changed without advance noticeand do not represent the condition of the product asstipulated by contract. It is the sole responsibility ofthe recipient of our products to observe possibleproprietary rights as well as existing laws andprovisions. The reference of trade names of othercompanies is no recommendation and does notexclude the use of products of similar type. Ourinformation only describe the quality of our productsand services and are no warranty.Liability is accepted for incomplete or incorrectparticulars in our data sheets only in the event ofintent or gross negligence, without prejudice toclaims under product liability laws. All transactionsare subject to our Terms of Sale and Supply.

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