Search

Extended Working Time Structure Concrete Repair Material

PRODUCT DESCRIPTION Tasir® Structural Concrete EW is a high early strength, single component, permanent concrete repair material which provides a 45-minute working time. The extended set facilitates deep/large volume pours up to six cubic yards in a single lift. Tasir® Structural Concrete EW......

Send InquiryChat Now

PRODUCT DESCRIPTION

Tasir® Structural Concrete EW is a high early strength, single component, permanent concrete repair material which provides a 45-minute working time. The extended set facilitates deep/large volume pours up to six cubic yards in a single lift. Tasir® Structural Concrete EW produces a repair which is dimensionally stable, develops an integral bond to existing concrete, and restores structural integrity within hours of placement. Tasir® Structural Concrete EW provides increased corrosion protection of steel reinforced structures with migrating corrosion inhibitor technology and very low chloride ion permeability.


extended-working-time-structure-concrete49563363033extended-working-time-structure-concrete56551884282


ADVANTAGES

● 45 minute working time

● One component

● Deep, large volume pours up to six cubic yards

● High six-hour strengths

● Coarse aggregate extension up to 80%

● Excellent freeze/thaw resistance

● Provides permanent concrete and equipment/machinery foundation repair

● Facilitates equipment rebuilds in under 24 hours

● Pumpable

● High bond strength

● Outstanding corrosion resistance for protection and rehabilitation


USES

● Deep, large volume repair of concrete structures and machinery foundations

● Concrete floor toppings and overlays

● Hot weather concrete repair

● Heavy industrial repairs and retrofits


PACKAGING AND YIELD

Tasir® Structural Concrete EW is packaged in heavy-duty polyethylene lined bags or plastic pails and is available in 50 lb. (22.7 kg) units yielding approximately 0.42 cubic feet (11.9 liters) at maximum water, or 0.60 cubic feet (17.0 liters) with a 60% extension using 3/8” pea grav- el. Tasir® Structural Concrete EW is also available in 3,000 lb. (1,360 kg) bulk bags.


SHELF LIFE

One year (packaged in bags) or two years (packaged in pails) in original unopened packaging when stored in dry conditions; high relative humidity will reduce shelf life.

TYPICAL PROPERTIES AT 70°F (21°C)

Compressive Strength, ASTM C 109

6 Hours

3,000 psi (20.7 MPa)

1 Day

4,500 psi (31.0 MPa)

7 Days

6,000 psi (41.4 MPa)

Bond Strength, ASTM C 882

1 Day

2,000 psi (13.8 MPa)

7 Days

2,500 psi (17.3 MPa)

Length Change, extended with pea gravel, ASTM C 157

28 Days Wet

+0.03%

28 Days Dry

-0.05%

Thermal Coefficient of Expansion, ASTM C 531

5.0 x 10-6 in/in/°F (9.0 x 10-6 mm/mm/°C)

Scaling Resistance, ASTM C 672

50 cycles

0

Chloride Ion Permeability, ASTM C 1202

28 Days

Very Low ( <1,000 Coulombs)

Working Time at 70°F (21°C)

45 minutes

*The data shown above reflects typical results based on laboratory testing under controlled conditions. Reasonable variations from the data shown above may result. Test methods are modified where applicable.

 

PLACEMENT GUIDELINES

1. SURFACE PREPARATION: All horizontal and vertical concrete surfaces in contact withTasir® Structural Concrete EW shall be free of oil, grease, laitance, and other contaminants. All horizontal and vertical concrete surfaces must be clean, sound and rough to ensure a good bond. Mechanically roughen concrete surfaces in accordance with ICRI Technical Guideline 03732 to a minimum concrete surface profile roughness (CSP) 6 or greater. Remove all oxidation from exposed reinforcing steel. A perimeter edge and minimum depth of 1/4 inch (6 mm) should be provided for a durable repair. Featheredging is not desirable. Soak concrete surfaces prior to application with liberal quantities of potable water, leaving the concrete saturated and free of standing water, or use Five Star® Bonding Adhesive. Surfaces shall be conditioned to between 35°F and 90°F (2°C and 32°C) at time of placement.

2. FORMWORK: Formwork shall be constructed of rigid non-absorbent materials, securely anchored, liquid-tight and strong enough to resist forces developed during placement. Areas where bond is not desired must be treated with form oil, paste wax or similar material. Joints may be necessary depending on pour dimensions. Any existing joints within the repair area should be maintained. Contact theTasir Products'Engineering and Technical Service Center for further information.

3. MIXING: Wet down mortar mixer (stationary barrel with moving blades) before using and drain excess water. A drill and paddle mixer is acceptable for single bag mixes. With the mixer running add approximately 80% of the pre-measured potable water (total water content is 2½ to 3 quarts potable water per 50 lb. unit) to the mixer. While mixing, slowly add Tasir® Structural Concrete EW and mix to a uniform consistency for three to four minutes. Adjust consistency if necessary, but do not exceed maximum water content stated on the package or an amount that will cause segregation. Addition of coarse aggregate meeting ASTM C 33 should be used for pours greater than 2 inches (50 mm) in depth; add course aggregate before final water adjustment. Do not mix more material than can be placed within 45 minutes. For larger quantities, a ready-mix concrete truck may be used.

4. PLACEMENT PROCEDURES: Whenever possible, place Tasir® Structural Concrete EW full depth from one side of the repair to the other. To ensure optimal bond development, firmly work material into substrate. Placement should be continuous to prevent cold joints between pours. Finish as necessary. For pumping procedures, contact Tasir Products'Engineering and Technical Service Center.

SPECIAL CONDITIONS: For use in cold temperatures,Tasir® Structural Concrete EW must be maintained at a temperature of at least 35°F (2°C). Protect from freezing until a compressive strength of at least 1,000 psi (6.9 MPa) is obtained. Faster strength gain will occur when the Tasir® Structural Concrete EW, mixing water and coarse aggregate have been conditioned to a higher temperature prior to placement. In high temperatures, Tasir® Structural Concrete EW should be kept as cool as possible, but not exceeding 90°F (32°C). Ice cold water should be used for mixing to help maintain sufficient working time.

5. POST-PLACEMENT PROCEDURES: Tasir® Structural Concrete EW shall be kept continuously wet 4 to 24 hours, depending on the volume, depth and placement temperature. Wet curing shall begin as soon as material reaches final set.

NOTE: PRIOR TO APPLICATION, READ ALL PRODUCT PACKAGING THOROUGHLY. For more detailed placement procedures, refer to the Tasir®  installation guidelines or call Tasir Products'Engineering and Technical Service Center at +86-571-87569602.


CONSIDERATIONS

● Never exceed the maximum water content as stated on the package or add an amount that will cause segregation.

● Temperature of surfaces must be between 35°F and 90°F (2°C and 32°C) at time of placement. For cold and hot weather placement, refer to Tasir® instruction.

● For pours exceeding six cubic yards, contact  Tasir®Products'Engineering and Technical Service Center.

● When capping: Tasir® Structural Concrete EW with either cement or epoxy grout, surface temperature shall have cooled down to 90°F (32°C) prior to grout placement.

● For ready-mix truck mixing guidelines, contact Tasir® Products'Engineering and Technical Service Center at  +86-571-87569602.


CAUTION

Contains cementitious material and crystalline silica. International Agency for Research on Cancer has determined that there is sufficient evidence for the carcinogenicity of inhaled crystalline silica to humans. Take appropriate measures to avoid breathing dust. Avoid contact with eyes and contact with skin. In case of contact with eyes, immediately flush with plenty of water for at least 15 minutes. Immediately call a physician. Wash skin thoroughly after handling. Keep product out of reach of children. PRIOR TO USE, REFER TO SAFETY DATA SHEET.

For worldwide availability, additional product information and technical support, contact your local Tasir® distributor, local sales representative, or call the Tasir®Products'Engineering and Technical Service Center at +86-571-87569602.

SKU/PRODUCT CODE

DESCRIPTION

#UNITS/PALLET

UNIT SIZE

SCEW1

Tasir® Structural Concrete EW

56

50 lb. (22.7 kg) Bag

SCEW2

Tasir® Structural Concrete EW

36

50 lb. (22.7 kg) Pail

WARRANTY: “Tasir  PRODUCTS ARE MANUFACTURED TO BE FREE OF MANUFACTURING DEFECTS AND TO MEET FSP’S CURRENT PUBLISHED PHYSICAL PROPERTIES WHEN APPLIED IN ACCORDANCE WITH Tasir’S DIRECTIONS AND TESTED IN ACCORDANCE WITH ASTM AND Tasir STANDARDS. HOWEVER, SHOULD THERE BE DEFECTS OF MANUFACTURING OF ANY KIND, THE SOLE RIGHT OF THE USER WILL BE TO RETURN ALL MATERIALS ALLEGED TO BE DEFECTIVE, FREIGHT PREPAID TO Tasir, FOR REPLACEMENT. THERE ARE NO OTHER WARRANTIES BY Tasir OF ANY NATURE WHATSOEVER, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH THIS PRODUCT. Tasir SHALL NOT BE LIABLE FOR DAMAGES OF ANY SORT, INCLUDING PUNITIVE, ACTUAL, REMOTE, OR CONSEQUENTIAL DAMAGES, RESULTING FROM ANY CLAIMS OF BREACH OF CONTRACT, BREACH OF ANY WARRANTY, WHETHER EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR FROM ANY OTHER CAUSE WHATSOEVER. Tasir SHALL ALSO NOT BE RESPONSIBLE FOR USE OF THIS PRODUCT IN A MANNER TO INFRINGE ON ANY PATENT HELD BY OTHERS.”


Tasir Construction Material&Technology Corporate Headquarters

Tianda Block, Jianggan District, Hangzhou City, Zhejiang Province, China

 

Specifications Subject to Change.

For most current version of datasheet, go to groutmaterial.com

© 2018Tasir Construction Material&TechnologyCp.,Ltd | 08-21-2018 Rev. H | China Owned & Operated

• Tel: +86-571-28119206

• Fax: +86-571-28197878

groutmaterial.com


Hot Tags: extended working time structure concrete repair material, China, suppliers, manufacturers, cheap, made in China
Related Products
Copyright © Zhejiang Taizheng Construction Material Co.,Ltd All Rights Reserved.