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a premixed formula of Portland cement and sand for use where a thickness of one-two inches is required.Mixing: Empty contents of bag into mortar box, wheelbarrow or mechanical mixer. When mixing by hand form a crater for adding water. Add approximately 4 L (4.24 qts) of clean water per 30 KG (66 lb) bag or enough to achieve a workable mix. Avoid a soupy mix. Excess water reduces strength and durability and can cause cracking. In cold weather use warm water to accelerate the set. Use cold water to slow the set in hot weather.Placing: After mixing, place and consolidate inside the area. Level, moving a straight edged board in a sawing motion across SAKRETE Sand Mix removing any excess and filling low areas. Allow freshly placed material to set or until the surface bleed water evaporates before finishing. Time will vary with weather conditions.
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 soft or saw cut 6-18 hours after hardening. The joint should be 1/5 of the full thickness of the slab and every 8 ft (2.4 m) in both directions. Adjust down for appearances (centering). 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.Pour U-MIX® Sand Mix into a clean wheelbarrow, mortar box, or mixing bucket. Form a crater in the center of the dry mix. Pour clean potable water into the crater at a rate of one quart per 15 pounds of mix. Work the mix with a shovel or hoe adding water as needed to achieve a stiff moldable mixture. Avoid over wetting the mix. Adding excessive water may weaken the mix.
Apply freshly mixed Sand Mix as soon as possible. Do not attempt to re-mix after the initial set. When patching or resurfacing, it is important to clean and dampen the surface of the existing Concrete before applying the new material. When applying new Concrete to old, a liquid Concrete Bonding Agent should be applied. Do not apply if the temperature is expected to fall below 40°F within the next 24 hours. Safety Sand Mix contains Portland Cement. Direct contact may irritate eyes and skin. Wear protective clothing (gloves & safety glasses) when using this product. Wash exposed areas promptly with water. If material gets into eyes, rinse thoroughly with clean water and seek immediate medical attention.80 LB sakrete sand Mix, a blend of Portland cement & washed sand, designed for repair & building jobs of less than 2 inch thickness, can be used for patching steps, sidewalks & floors, can be used as a topping over existing concrete, as a grout for drain tile, as a stucco & as a bedding Mix for laying flagstone or Slate, exceeds astm specification C387. (Source: www.amazon.com)