Boral Blue Circle Southern White Cement

Boral Blue Circle Southern White Cement is a high-performance, pure white general purpose Portland cement designed for applications requiring a brilliant white finish. Exceeding the requirements of Australian Standard AS 3972 for Type GP cement, it is produced with controlled colour consistency using a spectrometer, offering a lighter shade than Off White Cement with lightness values of 90-93. This product delivers reliable results in residential, commercial, and decorative projects where enhanced aesthetics and no chemical attack risk are key.

Key features include pure white colour for deeper, clearer oxide tints, high early strength, compatibility with admixtures compliant to AS 1478, other AS 3972-compliant cements, or fly ash per AS 3582.1 for customized properties, and poor resistance to sulfate attack—avoid use in sulfate-prone environments. Available in convenient packaging options such as 20kg multi-walled paper sacks or bulk cement, it suits projects of any scale from DIY decorative work to large-scale architectural finishes.

Technical specifications highlight its exceptional performance:

• Compressive Strength: Achieves 34-44 MPa at 3 days, 45-55 MPa at 7 days (minimum 35 MPa required), and 59-69 MPa at 28 days (minimum 45 MPa required).
• Setting Time: Initial set in 100-180 minutes (minimum 45 minutes), final set in 150-230 minutes (maximum 6 hours).
• Soundness: 0-5.0 mm (maximum 5.0 mm allowed).
• Fineness: 340-420 m²/kg.

For optimal results, follow recommended mix designs:

• General mortar (M3): 1 part cement, 6 parts sand, 1 part hydrated lime.
• Severe exposure mortar (M4): 1 part cement, 4.5 parts sand, 0.5 parts hydrated lime.
• General rendering: 1 part cement, 4 parts sand, 0.5 parts hydrated lime.
• General use concrete: 1 part cement, 2.5 parts sand, 4 parts stone/gravel.
• Higher strength concrete: 1 part cement, 2 parts sand, 3 parts stone/gravel.

Store in a cool, dry environment off the ground with free air circulation to prevent moisture exposure, which can reduce shelf life—test products older than 3 months or dispose if conditions are not ideal. Safety precautions are essential: Avoid dust inhalation with P2 masks, use gloves and goggles, and wash off skin contact immediately. Contains trace Respirable Crystalline Silica and hexavalent chromium; refer to the Safety Data Sheet for full details.

Choose Boral Blue Circle Southern White Cement for durable, high-strength, and visually stunning outcomes in your next project, backed by Australia’s trusted leader in construction materials.