SikaCem®-900 Geo W

• UL listed for drinking water applications

12 months in original, unopened packaging

Store in a dry, covered area, protected from the elements. For optimum performance it is recommended to store the material at temperatures between 5 °C  and 35 °C (41 °F and 95 °F). Protect from moisture. If damp, discard material.

No cracking or severe deterioration with light surface scaling

3.8 – 4.0 L (1.0 – 1.1 US gal) per 29.5 kg (65 lb) bag

117 – 124 L (30.8 – 32.7 US gal) per 907 kg (2000 lb) FIBC

5 °C – 35 °C (41 °F – 95 °F) 

5 °C – 35 °C (41 °F – 95 °F) 

Note: Time begins when last packaging of product is added to mixer.

2 184 kg/m³ (136.4 lb/ft³)

• 0.015 m³ (0.53 ft³) per 29.5 kg (65 lb) bag
• 0.46 m³ (16.2 ft³) per 907 kg (2000 lb) FIBC

Note: Yield figures do not include allowance for surface profile and porosity, or material waste.

Apply SikaCem®-900 Geo W in accordance with the ACI PRC-506 ''Shotcrete - Guide'' publication.

It is important to note that performance of in-place shotcrete relies heavily upon application techniques. Moreover, the shotcrete material, equipment and key personnel should be pre-qualified prior to project start-up to ensure optimum quality of in-place shotcrete. For other applications, contact your local Sika Canada technical representative for more information.

Substrate must be clean and structurally sound.

Remove all deteriorated concrete, dirt, dust, oil, grease, contaminants and other bond-inhibiting materials from the area to be repaired. Saw cut the perimeter edges of the repair area. Remove any and all protruding material such as brick, concrete, mortar, etc. Ensure that any and all leaks are stopped prior to SikaCem®-900 Geo W application.

To ensure optimum repair results, the effectiveness of decontamination and substrate preparation can be assessed by a pull-off test, as per ASTM C1583 requirements.

Place 75 % of required water into mixer and slowly introduce entire bag of SikaCem®-900 Geo W while the mixer is running. Allow SikaCem®-900 Geo W to mix for a minimum of three (3) minutes. Slowly add the balance of required water until the desired slump has been obtained, not exceeding maximum recommended volume of water. Maximum recommended volume of water is 4.0 L (1.1 US gal) per 29.5 kg (65 lb) bag, and 124 L (32.7 US gal) per 907 kg (2000 lb) FIBC. Continue mixing and stop only after material has reached a consistent, homogeneous mix.

At the time of application, surfaces should be saturated surface-dry (SSD) without standing water.

Apply SikaCem®-900 Geo W by wet-mix process shotcrete or troweling for repairing vertical or overhead surfaces. After application, allow it to stiffen for about 10 minutes before removing bumpy areas with a trowel. If applying multiple layers, allow the material to reach initial set. This will take anywhere from 75 minutes to several hours, depending on mix consistency, mix and ambient temperature, wind conditions and humidity. Begin and finish a given patch on the same day.

As per ACI recommendations for Portland cement concrete, curing is required. Curing is particularly critical in rapid moisture loss conditions such as high temperatures, high winds and low humidity. Moist cure with wet burlap and polyethylene, a fine mist of water or other ASTM C309 or C1315 compliant curing compound. Curing compounds can adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings. Moist curing should commence immediately after finishing. Protect freshly applied mortar from direct sunlight, wind, rain and frost.

Clean all tools and equipment after use with water. Once hardened, the product can only be removed mechanically.