Cemkel™ is a one-step, ready to use mixture. Just add water - nothing more. For uniform mix, use paddle or drum-type mechanical mortar mixers. Do not mix for more than 5 minutes. Place grout immediately after mixing. Do not mix more grout than can be placed within the alloted work time.

The temperature of the grout and the atmosphere, and the configuration of the area to be grouted, can each or in combination affect the time during which grout can be successfully worked. To be safe, complete grouting within 20 minutes of the mixing of water to the batch.

First remove all dirt, oil, grease or contaminants from surfaces to be grouted. Then remove all loose material.

Metals which will come in contact with grout must be de-rusted, or freed of paints, oils and greases. To avoid entrapment of air, provide air relief openings where required. Prior to placement of grout, thoroughly soak or dampen all concrete areas to be grouted. Then remove excess water from voids and holes.

For machinery bases and column base plates: Follow standard forming procedures which permit complete and proper placement of fluid grout, including use of head forms. All support elements should be anchored to prevent movement. Do not remove supports until grout has sufficiently hardened. Wood surfaces which absorb moisture should be prevented with forming oils. When grouting edges of concrete which are less than 1 inch thick, cut edges back to form a uniform butt.

Follow the standard grouting procedure and recommendations of ACI for the placement and curing of concrete. Use chains, rods, or tamping devices to compact grout, taking care to remove all air voids. For optimum results air temperature should be near 72°. Pour grout quickly and continuously, striking off exposed areas. Finished Cemkel™ should be cured for 72 hours for case plate application.

Kelken Cemkel™ is packaged in 55 lb. bags to yield 0.49 cubic foot of grout when mixed to a plastic consistency. When mixed to pourable consistency. When mixed to pourable consistency as per directions, one sack will yield approximately .47 cu. ft. of grout - 57.5 sacks = 1 cu. yd.

Kelken Cemkel™ meets or exceeds the following specifications:
· CRD-C-621-89 Specification for Non-Shrink Grout
· CRD-C-614 Method of Test for Time of Setting of Grout Mixtures
· ASTM-C-109 Standard Test for Compressive Strength of Hydraulic Cement Mortars
· ASTM-C-266 (CRD-C-222) Standard Test for Time of Setting of Hydraulic Cement by Gillmore Needle
· ASTM-C-232 (CRD-C-827) Standard Test Method for Bleeding of Concrete
· ASTM-C-827 Standard Test Method for Early Volume Change of Cementitious Mixtures.

Documents evaluating compliance with specifications by an independent testing laboratory are available.

Expansion at Pourable Consistency (ASTM-C-827) x (CRD-C-621)

Temperatures between 50° and 80°F (10°C - 27°C) have no effect on the grouting procedure.

When temperatures fall below 50°F around the area to be grouted, the mixing water and the dry grout should be warmed to not more than 80°F. Use ACI-306-87 "Standard on Cold Weather Concreting" as a guide, however when temperatures of 80°F or more prevail, the grout and mixing water should be cooled as per ACI-305-89 "Standard on Hot Weather Concreting", (Do not add accelerators to Kelken Cemkel™. Grouted surfaces that are exposed to the atmosphere should be treated with a clear curing compound in order to prevent rapid shrinking and cracking. If damp curing is applied, keep the grout moist for at least 24 hours.