SikaCem®-900 Geo W

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 between 40°F - 95°F (5°C - 35°C)

Protect from moisture. If damp, discard material.

No cracking or severe deterioration with light surface scaling

136.4 lb/ft³ (2,184 kg/m³)

40 °F - 95 °F  (4 °C - 35 °C) 

7.5 - 7.8 pints per 65 lb bag (3.6 - 3.7 L per bag)

31.7 - 33 US gal per 2200 lb supersack (119.8 - 127.8 L per supersack)

0.115 - 0.119 pints of water per lb of product

40 °F - 95 °F  (4 °C - 35 °C) 

Time begins when product is applied to substrate.

0.53 ft³ (0.015 m³) per 65 lb bag

0.67 yrd³ (0.513 m³) per 2204 lb bulk bag

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

• Surfaces must be clean and sound. Remove all deteriorated concrete, dirt, dust, oil, grease, contaminants and other bond-inhibiting materials from the area to be repaired.
• To ensure optimum repair results, the effectiveness of decontamination and substrate preparation can be assessed by a Pull-Off test (i.e Tensile Adhesion test per ASTM C1583).
• Saw cut the perimeter edges of the repair area.
• Remove any and all protruding material i.e brick, concrete, mortar, etc.
• Ensure that any and all leaks are stopped prior to application.

• ​​​​​​Pour 7.5 pints (3.6 liters) of clean water per 65 lb bag into a suitably sized mixing container.
• Add product to the container while continuously mixing with a low-speed rotary drill (400 - 600 rpm), and paddle or a concrete mixer.
• Add up to an additional maximum 0.3 pint (0.1 liter) of water, if needed, for the desired consistency.
• Do not overwater. Excess water may cause segregation.
• Mix to a uniform consistency, maximum 5 minutes. Thorough mixing and proper proportioning are necessary.

Apply in accordance with the ACI 506 “Guide to Shotcrete” publication.

Performance of in-place shotcrete relies heavily upon application techniques. 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 STM Technical Representative for more information.

OPTIMUM PERFORMANCE

• Product should not be applied when ambient, substrate, and material termperatures are below 40 °F (5 °C) or above 95 °F (35 °C).
• For adverse temperatures, follow ACI recommendations for Cold/Hot Weather Concreting.

FINISH

Depending on the project requirement:

• If needed, a troweling finish can be done following initial set. A smooth finish decreases degradation over time and increases effective flow within the sewer.
• A rough surface finish will allow the product to cure and secreat any additional water to allow more compaction of the finish material.

Contact your local Sika STM Technical Representative for more information.