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Application

Used to produce bonded, unbonded and floating screeds for internal locations. It can also be used for large repairs to existing cement/sand screeds. Suitable for situations where early foot traffic and rapid hardening is required.

Description

A special cement used in place of Portland Cement in cement: sand screeds for producing a rapid setting and drying floor screed that can be used as a bonded screed, an unbonded floor screed laid onto a membrane, or a floating screed laid onto compressive quilt or insulation material. It will be dry after 24 hours at 20°C to receive floor finishes, regardless of thickness.


Features and benefits:

  • Walkable in three hours.
  • Receives ceramic and natural stone tiles directly after 24 hours.
  • Install carpet, wood and vinyl floorcoverings after 24 hours, or just, four hours for carpet and vinyl when smoothed with ARDEX A 55.
  • Passes BRE Screed (ISCR) Testing after six hours.
  • After just one day, achieves the acceptable minimum compressive and tensile bending strengths attained by an ordinary cement screed after 28 days.


Screed thickness:

The following thicknesses are recommended for screeds using ARDEX A 35:

  • Bonded screeds: Minimum 15 mm (design thickness up to 40 mm).
  • Unbonded screeds: Minimum 50 mm.
  • Floating screeds: Minimum 75 mm (minimum 65 mm in lightly loaded (domestic) locations).
  • Screed repairs: Can be applied to the full thickness of the existing cement/sand screed.


Mix proportions:

  • Heavy duty: A 1:4 mix is recommended where a very heavy duty floor is required.
  • Standard: A 1:5 mix is recommended for all normal screeding situations.

General information

Material

Cement

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

-

Manufacturer guidance

Recommended thickness for type of screed needed:


Bonded: 20-40mm

Unbonded: 50mm+

Floating Domestic: 65mm+

Floating Commercial: 75mm+

Warranty description

Ten year

Uniclass

Pr_35_31_06_69 Quick-drying levelling screed mixesPrimary

CAWS

M10/115 Cement:sand levelling screeds

M10/130 Proprietary quick drying levelling screeds

M10/4 Cement:sand levelling screeds

M10/7 Proprietary quick drying levelling screeds

M40/20 Existing backgrounds/ bases generally

M40/320 Existing concrete/ screeds

Product range

Floor Screeds

Specification data - Quick-drying levelling screed mixes

Cement

Portland.

Coarse aggregate

0–8 mm sand.

Guidance for specification option:

Recommended by BS 8204-1: 2003+A1: 2009, classified to BS EN 13139 standards.

Fine aggregate

Required.

Admixture

Not permitted.

Mix

1:4 Cement:Sand.

Bonded

15–40 mm.

Unbonded

50+ mm.

Floating floor

75+ mm.

Guidance for specification option:

Commercial areas.

65+ mm.

Guidance for specification option:

In lightly loaded/domestic locations.

Drying time

3—24 hours.

Manufacturer guidance

  • 3 hours: Walkable.
  • 24 hours: Receives ceramic and natural stone tiles.
  • After 24 hours: Install carpet, wood and vinyl floorcoverings.

Compressive strength - 1 day

25.0 N/mm².

Compressive strength - 28 days

40.0 N/mm².

TensileStrength

7.0 N/mm².

Manufacturer guidance

After 24 hours.

Standards

To BS 8204-1, BS 5385-3 and BS 8000-9.

Sustainability data

Country of product manufacture

United Kingdom

Manufacturing plant location

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

0.96 kg CO₂ eq/kg

Recyclability

For disposal considerations see Health and Safety Datasheet at www.ardex.co.uk.

EPD

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
IFC
-

1

Revit

Revit 2016

1

Third party certifications

EPD

ARDEX A 35 Environmental Product Declaration (EPD)

Literature

ARDEX Tiling Guide

ARDEX Tiling Guide

ARDEX Fast Track Floor Screed Brochure

ARDEX Fast Track Floor Screed Brochure

ARDEX Datasheets Booklet

ARDEX Datasheets Booklet

ARDEX RIBA CPD Seminars Brochure

ARDEX RIBA CPD Seminars Brochure

ARDEX Screed Thickness Guide

ARDEX Screed Thickness Guide

ARDEX Screed Drying Times

ARDEX Screed Drying Times

ARDEX A 35 Sustainability Data Sheet

ARDEX A 35 Sustainability Data Sheet

ARDEX 10 YEAR UK PRODUCT WARRANTY

ARDEX 10 YEAR UK PRODUCT WARRANTY

Case studies

British Museum - London

British Museum - London

King's Cross Railway Station

King's Cross Railway Station

Piccadilly Circus Underground Station - London

Piccadilly Circus Underground Station - London

Savoy Hotel Restoration Project

Savoy Hotel Restoration Project

Burj Khalifa - Dubai

Burj Khalifa - Dubai

Madrid Airport

Madrid Airport

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