Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Composition
Metco WR is a blend of chemicals in a water-based system that are non-corrosive to concrete and mortar.
Features & Benefits
- Ready-to-Use Product Features
- Features/Benefits
- Easy to use by direct addition to concrete or mortar.
- Reduces required water thereby enhancing hardened properties.
- Normal set times virtually unaffected with normal dosage rates.
- Contains no added calcium chloride or other corrosive agents.
- Takes hard to work concrete to easily placed high slumps.
- Can be used with air entrained systems.
- Excellent for use as a pumping aid.
Applications & Uses
- Markets
- Application Area
- Compatible Substrates & Surfaces
- Typical Applications
- Ready-mix concrete
- Mass concrete
- Job mixed concrete
- Footers
- Grouts
- Flatwork
- Heavily reinforced structural concrete
- High strength concrete.
- Estimating/Coverage
To properly dose with Metco WR, the cement factor or content of the concrete or mortar must be known. Most applications will use 2 oz. (0.06 liter) to 5 oz. (0.15 liter) of Metco WR per 100-lbs. (45 kg) of cement.
- Directions for Use
- Preparation: Normally, standard concrete or mortar mixes should be mixed with an approximately 5% water reduction as a starting point. Add Metco WR and mix for 3 minutes and check for desired slump or flow. Add additional water to make final adjustments and mix for 2 additional minutes. Keep track of water and Metco WR dosage for additional batches. On applications where additional slump or flow is needed, add Metco WR to the standard mix and blend for 3 to 5 minutes. Adjust Metco WR to achieve desired workability. Concrete utilizing Metco WR will flow farther and expect greater form pressures than with standard concrete. Forms should be built accordingly.
Regulatory & Compliance
- Applicable Standards
ASTM C 494, Standard Specification for Chemical Admixtures for Concrete, Types D.
Technical Details & Test Data
- Compressive Strength
Metco WR vs. control at a 4 in. (102 mm) slump.
Age Control Metco WR 1 day 1,300 psi (9.0 MPa) 1,350 psi (9 MPa)
3 days 2,000 psi (14 MPa) 2,170 psi (15 MPa)
7 days 3,000 psi (21 MPa) 3,430 psi (24 MPa)
28 days 4,000 psi (28 MPa) 4,480 psi (31 MPa)
Packaging & Availability
- Packaging
Metco WR is available in 1-gal. (3.8 liter) jugs (4 jugs per case), 5-gal. (18.9 liter) pails, and 55-gal. (208 liter) drums. Metco WR is also available in bulk.
Storage & Handling
- Storage
Keep Metco WR from freezing in storage.