ARDEX K 523™ Self-Leveling Concrete Toping with Aggregate Surface

ARDEX K 523™ is a pourable, polishable, self-leveling topping for fast-track resurfacing of indoor concrete. ARDEX K 523 can be installed from a minimum thickness of 3/8″ (9 mm) up to a maximum thickness of 2″ (5 cm). With black and white aggregates, ARDEX K 523 provides a polished, “aggregate-exposed” surface. Polishing can proceed in as little as 24 hours.

Key Features

A blend of Portland cement, hydraulic cements and specialty black and white aggregates
Resurface indoor concrete
Walk on in 2-3 hours, polish in as little as 24 hours
Use for interior floors only

Standards

Tested in accordance with ASTM C1708

Specification

Installation
Mixing Ratio: 3.25 or 3.75 quarts (3.07 or 3.55 L) of water per 50 lb. (22.7 kg) bag
Coverage: Up to 13 sq. ft. per bag at 3/8” (1.2 sq. m at 9 mm)
Performance
Flow time: 10 minutes
Compressive strength (ASTM C109/mod – air cure only): 6,200 psi (436 kg/sq. cm.) at 28 days
Flexural strength (ASTM C348): 1,100 psi (77 kg/sq. cm.) at 28 days
Walkable: 2 – 3 hours (without E 25); 24 hours (with E 25)
Polishable: 24 hours (without E 25); 48 hours (with E 25)
Available Colors: Gray
VOC: 0
Packaging: 50 lb. (22.7 kg) net weight bag
Storage: Store in a cool, dry area. Do not leave bags exposed to sun.
Shelf life: Nine months, if unopened
Warranty: ARDEX Americas Standard Limited Warranty applies.

Technical specification

Unique ref.ARDEX-K-523
Product familyARDEX Surfaces
Product groupOverlays and Toppings
TypeObject (single object)
Date of publishing2024-02-21
Edition number1

Links

Product urlhttps://www.ardexamericas.com/product/ardex-k-523/
Instruction videohttps://youtu.be/7HRHXGfgTlY
Technical descriptionhttps://ardexamericas2.wpenginepowered.com/wp-content/uploads/2019/02/ARDEX-K-523-Technical-Data-2.pdf

Classification

BIMobject CategoryFlooring - Underlay
IFC classificationFloor
UNSPSC nameCarpet or rug underlays
UNSPSC code30161719
Uniclass 2015 CodePr_35_31_06_80
Uniclass 2015 DescriptionSmoothing and levelling underlay compounds
CSI MasterFormat 2014 Code06 16 26
CSI MasterFormat 2014 TitleUnderlayment
OmniClass Number23-15 17 11 13 11 13
OmniClass TitlePortland Cement Floor Underlayments
CSI UniFormat II CodeB1010
CSI UniFormat II TitleFloor Construction

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States

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