Sable Marco® Concrete 6000

12 months in original unopened bag

Store in a dry, covered area protected from the elements. If the product has been in contact with water or moisture or contains hardened lumps,
do not use it

2,100 kg/m³ (131 lb/ft³)

Exceeds the strength requirements of ASTM C387 when used at directed.

3.1 L (0.8 US gal) of clean, potable water / 30 kg (66 lb) bag

Between 5 °C (40 °F) and 30 °C (86 °F)

Between 5 °C (40 °F) and 30 °C (86 °F)

Between 5 °C (40 °F) and 30 °C (86 °F)

Approx. 0.014 m³ (½ ft³) per 30 kg (66 lb) bag

For repair works, the surfaces must be free of dirt, dust, grease, and other contaminants. Remove all delaminated or unsound concrete by chipping with a hammer and chisel or using a stiff wire brush. Clean the area to be repaired with clean, potable water, leaving the concrete saturated but free of standing water. Some very porous concretes may require several applications of water to ensure complete saturation.

Pour the contents of a 30 kg (66 lb) bag into a clean container, gradually add clean, potable water while mixing, not exceeding  3.1 L (0.8 US gal). Mix thoroughly until a uniform mixture is achieved. If the mixture is too thick, add a little water at a time, taking care not to thin too much to achieve the desired consistency. Excess water reduces strength and can cause cracking. In cold weather, use warm water to accelerate the set. In hot weather, use cold water to slow the set.

Concrete repairs:

• Placing: After mixing, place and consolidate the concrete evenly within the repair area. Use a straight-edged board to level the surface by moving it in a sawing motion, removing excess material and filling low spots. Allow the concrete to set or wait until bleed water evaporates before proceeding with finishing. The time required will vary depending on weather conditions. 

• Finishing: Once bleed water has evaporated, finish the surface as desired. For a smooth finish, use a wood, magnesium, or aluminum float. For a textured finish, use a broom or brush. When repairing over existing joints or cracks, tool a joint into the fresh mix above the existing joint using a jointer tool. The joint should be approximately half the depth of the repair. Note: Avoid finishing too early or overworking the concrete, as this may cause dusting, cracking, scaling, and a weak surface.

Setting posts:

Dig the hole to the required depth, ensuring it extends below the frost line. Allow approximately 50 mm (2 in) clearance around the post.

Position the post in the hole and pour the mixed concrete around it. Use a level to ensure the post is properly aligned. Cross-brace the post securely while the concrete sets. Allow the concrete to cure for at least 24 hours before removing the bracing and backfilling.

New construction:

• Preparation: Excavate to the required depth to accommodate the base and concrete thickness. Ensure the subgrade is stable, well-compacted, and properly drained. Install standard formwork with a slight slope to direct surface water run-off. Apply a form release-agent to all contact surfaces before placing the concrete.

• Mixing and Placing: Mix the concrete as directed. Pour into the forms and slightly overfill. Use a trowel along the edges to remove air pockets. Tap the forms gently to smooth the sides. Use a straight board to level the surface.

• Finishing: Smooth the surface with a float. Stop when bleed water appears. After the water dries, finish as needed, use a float for a smooth surface or a broom for texture. Use an edging tool to shape the edges. Avoid overworking the surface.

• Jointing: Add joints to help control slabs cracking. Use a jointer while the concrete is soft or saw cut 6 to 18 hours after hardening. Joints should be about 1/5 the depth of the slab and spaced approximately every 2.4 m (8 ft).

Curing involves maintaining the right temperature and humidity levels. Wait for the new material to set, until the surface is hard to the touch. Then keep the material damp or cover it with a polyethylene sheet to prevent the mixing water from evaporating for at least 3 days. Protect from frost for at least 24 hours.

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