Sable Marco® Cement Sand Mix

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.

≈ 2200 kg/m³ (≈ 137 lb/ft³)

12

Note: The following data is representative of typical values achievable under laboratory conditions. Results in the field may vary

4.1 L (1.1 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 (0.5 ft³) per 30 kg (66 lb) bag

A slab of 1 m² (11 ft²) at 13 mm (½ in) thickness requires 30 kg (66 lb).

• New construction: Ensure the area is properly prepared according to project requirements.

• Repairs: Surfaces to be repaired must be sound and clean. Remove all delaminated or unsound concrete using a hammer and chisel or a stiff wire brush. Rinse the area thoroughly 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. If necessary, build a form around the structure to be repaired (in the case of an existing slab or sidewalk). Use a level to ensure the forms are set at the correct height and there is adequate slope for water drainage. For best results, apply a concrete bonding agent to the existing dampened substrate before pouring.

Pour 4.1 L (1.1 US gal) of clean, potable water per 30 kg (66 lb) bag in a clean container. Gradually add the dry ingredients while mixing with a drill fitted with a mixer. Mix thoroughly until a uniform mixture is achieved. If the mixture is too thick, add a litte 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.

• Placing: Once mixed, place and consolidate the material inside the area. Use a straightedge board in a sawing motion to level the surface across Sable Marco® Cement Sand Mix, removing any excess and filling low spots. Allow freshly placed material to set or until the surface bleed water evapourates before finishing. Time will vary with weather conditions.

• Finishing: After bleed water evapourates, finish the surface to the desired texture. For a smooth finish, use a wood, magnesium, or aluminum float trowel. For a textured surface use a broom or brush. Use an edging tool to finish the edges. Avoid finishing too early or excessively working the surface, as this can lead to issues such as dusting, cracking, or surface scaling. NOTE: Stress control joints are placed to control where slabs crack, along a pre-determined path. Use either a hand jointer while the mix is still soft or saw cut 6 to 18 hours after hardening. Joints should be spaced approximately every 2.4 m (8 ft) in both directions and cut to a depth of at least 1/5 the slab thickness. Adjust placement to maintain a clean, symmetrical appearance. Should the repair overlay be placed over an existing concrete joint or break, it is important to tool a joint into the soft mix over the existing joint or break. Use a jointer tool to form a joint half the depth of the repair.

• Filling cracks: After mixing, work the Sable Marco® Cement Sand Mix into the crack with a rod or stick then level the surface with a straight edge. Finish as desired.

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 manually or mechanically.