CONCRETE POLISHING SYSTEM SPECIFICATIONS
PART 1 GENERAL
A. SPECIFICATIONS FOR POLISHED CONCRETE
1. This specification includes specific requirements for concrete mix, placement and
protection of concrete work. It is the General Contractors, GC responsibility to insure all
trades are aware of proper care for and protection of concrete surface during construction
to insure the best quality finish product.
2. GC is to provide posted rules at jobsite for concrete floor protection. Concrete surface
must be fully and uniformly protected for 28 days after pour.
3. No satisfactory chemical or cleaning procedure is available to remove petroleum based or
other deep stains from within the concrete surface (including many oils, fuels, paint
products, glues, or other penetrating stains). Prevention is therefore essential.
4. GC to provide for and insure maintenance of protection system to protect concrete surfaces
1.02 WORK IN THE SECTION APPLIES TO POLISHING CONCRETE FLOOR SURFACES TO A
DESIRED FINISH WITH INCORPORATION OF CONCRETE DENSIFIER(S)
1.03 RELATED WORK:
A. Section Cast in Place Concrete
B. Section Concrete Hardening/Sealing
1. Submittal Packages: Prior to commencement of work submit all data sheets and M.S.D.S
2. Contract Closeoout Submittals: Provide 2 copies of the recommended cleaning and
maintenacne instrcutions for the installed Floor system to the Owner’s Representative
D. QUALTIY ASSURANCE
1. Installer Qualifications: Installer should be an established company regularly engaged in
the installation of densified concrete floor systems with a minimum of 3 years experience.
Contractor shall furnish documentation regarding the successful completion of projects of
similar magnitude and complexity.
2. Single Source Repsonsibility: All required materials and installation personnel to be
provided by the same company.
3. The system manufacturer shall certify applicator.
E. DELIVERY, STORAGE, AND APPLICATION OF PRODUCT
1. Delivered materials to the site shall be in factory-sealed containers, clearly labeled and
marked with manufacturer’s name, address, batch number, and date of manufacture.
Material Safety Data Sheets must accompany materials upon arrival.
2. Store materials in accordance with manufacturer’s printed instructions. Furthermore,
materials to be used in conjunction with the application of this system shall be stored
indoors, protected from damage and maintained at a temperature no lower than 55
F. CONCRETE MIX DESIGN
1. Concrete Mixture shall be 3000 PSI or higher, non-air entrained.
a. Any admixtures, plasticizers, or anything taking the place of Portland-based cement
shall be kept to a minimum.
b. Confirm there is NO Slag or Fly Ash in the mix – as these materials will affect the
c. The cement shall be Portland Cement type 1, conforming to ASTM C 150.
d. Maintain concrete temperature below 85 degrees. Keep concrete as cool and moist
for as long as possible. In essence, decrease rate of hydration and drying to
e. Wet cures are most suitable, but if this cannot be achieved, use a dissipating cure
and seal. If the cure and seal has not dissipated before grinding has begun, extra
cost may be incurred for its removal.
f. Use one source for cement, aggregates and pozzolans throughout the job. Monitor
and control incoming material consistency. Do not use calcium chloride-based
admixtures. Non-chloride admixtures may be used.
g. Wash out all drums before loading. Keep slumps consistent with a maximum of 5.
Minimize driver added water maintaining a .45 water content ratio.
h. Place concrete to achieve as true and smooth a top surface as possible. Mounds or
dips are not acceptable. GC shall control overall flatness and levelness, including on
sloping areas to within tolerances permitted by specification – ASTM E1155.
i. Floor flatness (FF) rating of at least 40 and level (FL) rating of 30. Slab shall be
protected from indention, contaminants and footprints during pour and curing.
j. Prepare construction joints: joints saw cut spacing 30-35 times at slab thickness (4”
slab would have cuts 10’-12’ on center). Cut 1/8 – 3/16 wide, cut 1/3 the concrete
thickness is ideal. If a softcut saw or an “early entry saw” is used the same day then
25% is typically adequate. If the cuts are done the next day then the full third is
recommended. To leave concrete undamaged from sawing, conventional saw cutting
must be delayed, usually 4 to 12 hours but not so long that uncontrolled cracking of
concrete could occur. Fill all joints full depth with polyurea or equal.
k. Expansion Joints: Use felt board with “Cap Strips” see
(http://www.formtechinc.com/other_expansionjoint.htm ) when pouring to establish
joint width and for easy removal. Fill joints with closed cell backer rod at least 125%
larger than joint width, caulk with Pecora Dyna Flex Urethane or equal. Joint sealant
thickness to be ½ of the joint and tooled to be slightly concave.
1.04 PROJECT/SITE CONDITIONS
A. Floor areas to be polished are to be free and clear of all obstacles including racking, fixtures
and temporary equipment and materials in order to provide an open and uninhibited concrete
B. Protection: General Contractor shall protect areas to receive concrete finish at all times during
construction to prevent oils, dirt, metal, excessive water and other potentially damaging
materials from affecting the finished concrete surface. Protection measures listed below shall
begin immediately after the concrete slab is poured.
1. All hydraulic powered equipment shall be diapered to avoid staining of the concrete.
2. All vehicle parking shall be prohibited on the finish slab area. If necessary to complete
their scope of work; drop cloths shall be placed under vehicles at all times.
3. No pipe-cutting machine shall be used on the finish floor slab.
4. Steel shall not be placed on the finish slab to avoid rusting.
5. Acids and acidic detergents will not come in contact with slab.
6. All painters will use drop cloths on the concrete. If paint gets on the concrete, it must be
7. All trades will be informed that the slab must be protected at all times.
8. A minimum of 28 days of cure on new concrete should be provided before system
installation is initiated.
9. The best degree of concrete floor flatness and levelness should be strived for since the
floor finish may enhance imperfections such as high and low spots resulting from
placement and finishing. A floor flatness rating of 40 +/- 5 and a floor levelness of 35 +/- 5
is required on newly placed concrete.
10. Block off areas to traffic for the duration of the system’s installation.
11. Ensure that adequate lighting has been installed to support surface preparation and
1.06 THE INSTALLER SHALL FURNISH A SINGLE SOURCE WARRANTY FOR THEIR SYSTEM
FOR A PERIOD OF
A. one-year minimum.
1. Titus Restoration Services, Inc.
a. 323 Bell Park Drive Woodstock, GA 30188
b. Contact: Melinda Evans 678-494-6893
c. E-mail – firstname.lastname@example.org
2. Substitutions: This is a closed specification, no substitutions allowed for system or
A. Concrete Densifier:
1. Titus HP2 Concrete Densifier
B. Concrete Sealer:
1. 1. Titus HP2 Stain Guard
PART 3 EXECUTION
A. Verification of Conditions: Examine surfaces scheduled to receive the work of this section for
defects that will adversely affect the execution and quality of the work. Ensure attendance at a
per-installation meeting will be attended by at least the Landlord or Developer, General
Contractor and Installer so they agree to the condition of the existing slab prior to performing
the work. Do not proceed until unsatisfactory conditions are corrected. Provide in writing to
Owner a list of the conditions, if any.
B. New Concrete: Confirm that a minimum of 28 days has elapsed before installation
1. can begin. Also confirm if curing agents or hardening agents have been applied.
A. Advise all other contractors, vendors and others working in the areas completed that
the concrete slab surface is the finished floor and is to be protected accordingly.
B. Do not allow chemical spills, cutting of materials or sliding of steel to occur on the
finished surface because damage can occur.
C. Follow system manufacturer’s instruction for cleaning to ensure proper protection from
dirt and debris
A. Request acceptance by Owner’s Representative for the finished floor.
B. Correct all unacceptable work to the satisfaction of the Owner’s Representative.
A. Examine floor to receive polished concrete floor system.
B. Notify Architect or building representative of conditions that would adversely affect
installation or subsequent use.
C. If during the examination a divot is found use a standard stainless steel brush with water to
clean out the divot. While the divot is still damp pour in the Rockite (this is expanding,
anchoring cement. Go to www.rockite.com for more information on product).
D. Do not begin surface preparation or installation until unacceptable conditions are corrected.
E. Verify the Following for New Concrete Floors:
1. Floor Finish:
a. Slabs and flatwork shall be placed and finished monolithically.
b. Strike off and laser screed slabs to true, plane surfaces at required elevations.
c. Thoroughly compact concrete with vibrators, floats, and tampers to force coarse
aggregate below the surface. d. Power trowel with no hand finishing.
d. Pan float
e. Steel finish.
f. Surface should not be burned due to excessive toweling.
g. Imprints are not acceptable (i.e. boots, foreign objects dropped into concrete).
2. Floor and Joints:
a. Free of debris and excessive dirt, dust, clay, and mud.
3. Floor Surface Profile:
a. Floor Flatness Number (FF): 40 + / – 5.
b. Floor Levelness Number (FL): 35 + / – 5
4. Concrete Compressive Strength: 3,500 psi to 5,000 psi.
5. Lightweight Concrete: Not allowed if aggregate exposure is required.
6. Concrete Curing: Minimum 8 days water cured or dissipating curing compound applied.
7. Concrete Adjacent to Floor Penetrations: Troweled flat and level with surrounding
8. Concrete Adjacent to Drains, clean-outs, etc: Finish level to the top of the structure.
2.05 3.05 SURFACE PREPARATION
A. Protection: Protect surrounding areas and adjacent surfaces from the following:
1. 1. Minimal accumulation of slurry from grinding and polishing.
2. 2. Contact with overspray of concrete densifier.
3. 3. Contact with overspray of concrete sealer.
4. Surface Preparation: Prepare surfaces in accordance with installer’s instructions.
5. Clean Surfaces: Remove dirt, dust, debris, oil, grease, curing agents, bond breakers,
paint, coatings, and other surface contaminants which could adversely affect installation of
polished concrete floor system.
2.06 3.06 INSTALLATION
A. Install polished concrete floor system in accordance with installer’s instructions at locations
indicated on the Drawings.
B. Specify Aggregate Exposure:
1. Cream/Sand/Medium Aggregate/Full Aggregate Exposure
2. Specify Shine: Horiba Gloss Reading: Low (20-30), Medium (30-40), High (50 or higher)
3. Preparation Step:
a. Remove existing floor coatings (if present, Installer should be notified to adjust pricing)
b. Start the grinding phase a diamond grit and hardness based on the floor conditions.
c. Wet polish to a hone.
d. Apply concrete densifier to total saturation.
e. Remove residue of concrete densifier dried on floor surface.
4. Final Polish: Wet polish until desired surface sheen meets the requirements listed above.
a. Apply concrete stain protection.
b. Burnish in between each coat.
4. Edge Finishing:
1. Specify edge finishing: Polished Edges / Painted Edges
2.07 3.07 FIELD QUALITY CONTROL
A. Inspect completed polished concrete floor system with Owner, Contractor, Architect
(as-needed), and Installer.
B. Review procedures with Architect (as-needed) to correct unacceptable areas of completed
polished concrete floor system.
2.08 3.08 PROTECTION
A. Protect completed polished concrete floor system from damage until Substantial Completion.
1. Do not allow vehicle and pedestrian traffic on unprotected floor.
2. Do not allow construction materials, equipment, and tools on unprotected floor.
B. Immediately remove mortar splatter, spilled liquids, oil, grease, paint, coatings, and other
surface contaminants which could adversely affect completed polished concrete floor system.
C. Repair damaged areas of completed polished concrete floor system to satisfaction of Owner or