1. LU-HSW-SD
Course # AIACEST072
2326 Northwood Ave.
Easton, PA 18045
610-559-8182
www.corrosion-tech.com

2. National Terrazzo and Mosaic Association (NTMA) is a Registered Provider
with the American Institute of Architects Continuing Education Systems.
Credit earned on completion of this program will be reported to CES
Records for AIA members. Certificates of completion for non-AIA members
are available on request.
This program is registered with the AIA/CES for continuing professional
education. As such, it does not include content that may be deemed or
construed to be an approval or endorsement by the AIA of any material of
construction or any method or manner of handling, using, distributing, or
dealing in any material or product. Questions related to specific materials,
methods, and services will be addressed at the conclusion of this
presentation.

3. Key Resin Co. History
• Founded in 1993, by Robert Cain, President.
• Bob Cain has been the co-chairman of the National Terrazzo
and Mosaic Association’s (NTMA) Technical Committee since
the mid 1970’s.
• Key Resin offers:
– Epoxy Terrazzo Flooring
– Resinous Flooring Systems
– Moisture Vapor Control Primer, Crack Isolation Membrane
– Full Range of Coatings for Concrete Floors and Walls

4. The purpose of this presentation is to
provide general information which will be
helpful in specifying terrazzo. The
participants will gain an understanding of
the various terrazzo systems and how it
can be utilized in a variety of design
applications.
Course Description

5. Learning Objectives
Upon completion, you will be able to:
Explain WHAT Terrazzo is
You will know the HISTORY of Terrazzo
See WHY to specify Terrazzo
How terrazzo can contribute to project sustainability
Explain the different TYPES of Terrazzo
See that the DESIGN POSSIBILITIES are endless

6. What is Terrazzo
A “poured in place” mortar of portland cement
or epoxy resin mixed with chips of
marble, glass or other aggregate.
Terrazzo flooring is
poured, troweled, cured, ground and polished
to a smooth surface to show the chips.

8. History of Terrazzo
Electric Grinding Machines Introduced
Introduction to Epoxy US Market
Finished by Hand
Galeras Divider Strips
Long & Rich History
Terraces Brought to the US

9. KFC YUM Center
Outstanding
Durability
Why Specify Terrazzo

10. The Children’s
Hospital at
Fitzsimmons
Aurora, CO
Virtually Unlimited
Colors & Design
Possibilities
Why Specify Terrazzo

11. Highly Decorative Appearance
Rockville Town Center Library
Why Specify Terrazzo

12. Lowest Life-Cycle Cost
$0 $20 $40 $60 $80
Epoxy Terrazzo
Polyacrylate Terr.
Sand Cushion Terr.
Quarry Tile
Porcelain Tile
Vinyl Tile
Carpet
Vinyl Sheet
40 Yr. Average Life Cycle Cost
Hershey Story,
Hershey, PA
Why Specify Terrazzo

13. Ease of
Maintenance &
Chemically
Resistant
Casino of the Sun,
Tucson, AZ
Why Specify Terrazzo

14. Fire Proof and
Non-Porous
Prohibiting
Microbial Growth
Goldman Sachs
Cafeteria
Why Specify Terrazzo

15. Plaza las Americas
San Juan, Puerto Rico
Virtually Unlimited Layout Design
Why Specify Terrazzo

16. Types of Terrazzo Flooring
Section 09 66 00
Terrazzo Flooring Systems
Portland Cement &
Bonded Terrazzo
Polyacrylate
Terrazzo
Epoxy (Resinous)
Matrix Terrazzo
Min. thickness 2” 1/2” 3/8”
Interior applications Yes Yes Yes
Exterior applications Yes Yes No
Affected by moisture vapor transmission No No Yes
Accommodates substrate defects Yes No No
Acceptable for use over wood substrate Not Recommended Yes Yes
Vibrant colors available No No Yes
Color uniformity Good Good Excellent
Glass chips recommended No Yes Yes
Chip size limitations No Yes (max. size 2) Yes (max. size 2)
Design flexibility Good Very Good Excellent
Length of cure time 28 days 28 days 2 days
For more information, go to www.ntma.com

17. Cement Based System
Excellent Choice for New
Construction
Requires 3” Depressed Slab
Typical Panel
4’ x 4’
SAND
CUSHION
Types of Terrazzo

18. Cement Based System

19. THIN-SET
New
Construction or
Renovation
Bonds Directly to
Slab
¼” – ⅜” Finished
Thickness
Quicker
Installation Time
Does Not
Require
Depressed Slab
Requires Slab
Preparation Prior
to Installation
Reduced Weight
Types of Terrazzo

20. Types of Thin-Set Terrazzo
Polyacrylate
Cement Modified Acrylate
Epoxy
2 Component Resin
PSI rated at 10,000 +
Excellent Chemical
Resistance
Bright Color Selection
High Compressive
Strength
High Impact Resistant
Allows for Vapor
Transmission

22. Dominant System

23. Design Details

24. Types of Aggregates

25. Design & Detail Specifications
Terrazzo Strips
• Common materials:
– White alloy of zinc, aluminum, brass and plastic are recommended
– Stainless steel are not recommended as it causes problems when
grinding.

26. • Review the Expansion Joints and Control Joints in your floor.
Do this with your flooring contractor!
• Honor all Expansion and Control Joints – Best Option!
– Incorporate joints into the flooring design, if possible.
– Specify areas in floor that may require buried control joints.
» Excessive concrete movement may cause cracks or heaving
even with membrane treatment.
– Long corridor runs should allow for divider strips
perpendicular to the corridor.
Design & Detail Specifications

28. Design & Detail Specifications
Expansion / Isolation Joint
FLEXIBLE URETHANE
SEALANT OVER BACKER
ROD BETWEEN TWO
DIVIDER STRIPS

29. Design & Detail Specifications
STANDARD DIVIDER
STRIP(S) WITH
FLEXIBLE JOINT
FILLER
Saw Cut / Control Joint
FILL SAW CUT
JOINT WITH
100% SOLIDS
RIGID EPOXY

30. Design & Detail Specifications
Construction / Cold Joint
DOWEL IN ACCORDANCE
WITH ACI 302 OR ENGINEER
OF RECORD TO PREVENT
VERTICAL MOVEMENT.
FLEXIBLE EPOXY
JOINT FILLER
NOTE: IF CONSTRUCTION/COLD JOINT HAS NOT
OPENED, STRIPS MAY BE SET BACK TO BACK
EPOXY TERRAZZO

31. Design & Detail Specifications
Buried Control Joint
ELASTOMERIC MEMBRANE
2’ WIDE X 30-35 MILS THICK
BONDED
EPOXY TERRAZZO
FILL SAW CUT JOINT WITH
100% SOLIDS RIGID EPOXY
OPTIONAL FIBERGLASS
FABRIC REINFORCEMENT
NOTE: METHOD MAY ALSO BE USED TO
TREAT CRACKS LARGER THAN HAIRLINE
CONCRETE SLAB

32. WALLSUBSTRATE
GROUT AS REQ’D
CRACK ISOLATION MEMBRANE
(EPOXY ONLY)
GROUT TOP AS REQ’D
4”TO12”
Design & Detail Specifications
Epoxy Terrazzo Floor & Cove Base
CONCRETE SLAB

33. WALLSUBSTRATE
STANDARD DIVIDER STRIP
RADIUS OR CHAMFER
1/4” TO 3/8” EPOXY FLOORING
& BASE WITH 1” RADIUS
CRACK ISOLATION MEMBRANE
(EPOXY ONLY)
GROUT TOP AS REQ’D
CONCRETE SLAB
4”TO12”
Design & Detail Specifications
Epoxy Terrazzo Floor & Cove Base

34. Non-Skid Tread Inserts
Epoxy Terrazzo Tread
Cross Section
Design & Detail Specifications

35. Surface
Preparation &
Installation

36. SURFACE
PREPARATION
The Most Important Factor
in the Success of any
Terrazzo Flooring System Application.

37. Surface Prep – New Concrete
Minimum 28 day cure on standard concrete
Perform moisture testing to confirm suitable levels
Remove all contaminants by chemical cleaning
Concrete Surface Preparation - Follow ICRI Guideline No. 03732
Mechanical bond is important - remove laitance & obtain a
uniform surface texture (ICRI CSP #4-5)
ICRI = International Concrete Repair Institute

39. Sealers /Coatings
Detergent Scrubbing
Grinding
Acid Etching
Shot-Blasting
Scarifying
Scabbling
SP-1--SP-2
SP-3--SP-4
SP-4--SP-5
SP-4--SP-7
0 - 30 mils
30 mils - 1/16 inch
1/16 inch - 1/8 inch
3/16 inch - 1/2 inch
SP-1 SP-2 SP-3 SP-4 SP-5 SP-6 SP-7
System to be applied
Preparation Methods
Self-Leveling
Slurries/Broadcast
Troweled Mortars
Minor Profile Major Profile
Concrete Surface Profile

40. Shot-Blast Machine
Reveals Crack

41. Surface Profile: Shot-Blast Floor
Before & After

42. AFTER SURFACE PREP
REPAIR
BEFORE
COATING

43. Pre-Treat Shrinkage Cracks with Low-Modulus
Primer/Binder and Scrim Cloth
Crack Repair & Joint Treatment

44. Spread Crack Isolation Membrane
over Primed Floor

45. Floor Repairs
• Proper Leveling/Filling
Avoid Dissimilar Materials
Avoid Most Self-Leveling
Underlayments
Depth of Fill can Dictate
Material Choice
Material & Depth will Determine
Cure Time
Make Repair Cosmetically
Acceptable

46. Terrazzo Installation Process
Mix Material

47. Terrazzo Installation Process
Place Material

48. Terrazzo Installation Process
Trowel
(Hand or Power)

49. Terrazzo Installation Process
Dry Grind

50. Terrazzo Installation Process
Wet Grind

51. Terrazzo Installation Process
Grout Coat

52. Terrazzo Installation Process
Hand Detailing

53. Moisture Vapor
Transmission

54. What is MVT?
Moisture Vapor Transmission (MVT) is the
natural migration of moisture vapor
through sub-grade earth and building
components.

55. Moisture Vapor Transmission
Epoxy
Terrazzo
Rubber TilePolymeric Gym Floor

56. Moisture Vapor Transmission
Possible Sources of Moisture
• Slabs-on-Grade with No Effective Vapor
Barrier
• Elevated Slabs using Pan-Type
Construction
• Lightweight Concrete

57. Occurs when a source of moisture and a non-
breathing system on the surface are present.
Moisture Vapor Transmission
Possible Sources of Moisture
• Slabs-on-Grade with No Effective Vapor
Barrier
• Elevated Slabs using Pan-Type
Construction
• Lightweight Concrete

58. Moisture Vapor Transmission

59. Possible Causes of Failure
 Alkali-Silica Reactivity Osmotic Blistering

60. Epoxy Coating Failure:
Moisture Vapor Transmission

61. Testing
Moisture Vapor Transmission
ASTM D-4263 (Plastic Sheet) QUALITATIVE
ASTM F-1869-98 (CaCL) QUANTITATIVE
ASTM F-2170-02 (RH Probe) QUANTITATIVE

62. Moisture Vapor Transmission:
CaCl Moisture Test Kit in Use

63. RH Probe Testing

64. Moisture Vapor Transmission
No MVT
Treatment
required when
RH Probe
Test is
< 80%
Calcium
Chloride
test < 3 lbs.

65. Moisture Vapor Transmission
Prevention
Use Efficient
Vapor Barrier
(10 mil Min.)
Test, Test, Test!
Apply MVT
Treatment to
MVT

66. Moisture Vapor Control
Systems
• Low Permeability MVT Primer
• CaCL test to 8 lbs. and RH up
to 85%
Epoxy
MVT
Primer
• Recommended thickness is
1/8”
• Unlimited moisture protection
Reservoir
System

67. Epoxy MVT Primer

68. Reservoir System
EPOXY
TERRAZZO
CONCRETE SLAB
1/8” RESERVOIR
MVT SYSTEM
Moisture remains below
3 lbs. of CACL or 80% RH

69. Moisture Vapor Transmission: Applying
Epoxy Moisture Prevention Slurry

70. Design
Considerations

72. Simple Terrazzo Design
Office Complex

73. Midd-West High School
Color Selection
Considerations

74. AMC Chula Vista
Terrazzo Floor

75. AMC Chula Vista Terrazzo Floor

76. LEEDing
Terrazzo

77. • Leadership in Energy and Environmental Design (LEED)
– LEED 2009 for Commercial Interiors
• To earn certification, the project team must satisfy a criteria of
seven prerequisites and earn:
• 40-49 points for Basic certification
• 50-59 points for Silver certification
• 60-79 points for Gold certification
• 80+ points for Platinum certification
LEEDing Terrazzo

78. • Use of terrazzo may contribute to LEED Credits in the
following areas:
LEEDing Terrazzo
• Use materials with recycled content
• 100% recycled glass is not recommended
MR Credit 4
• Use of regional materials (500 mile radius)MR Credit 5
• Building reuse credit for reusing existing terrazzo floorsMR Credit 1.2
• Subcontractor working with the GC to reduce
construction wasteMR Credit 2
• Low-Emitting Materials (Flooring Systems)
• Epoxy terrazzo uses 100% solids, zero VOC resins resulting in no air
contaminants
Credit 4.3

79. • Innovation Design Credit (ID Credit 1) - Creative or
innovative design or material application
LEED – Innovation Design Credit
• Epoxy Terrazzo has the lowest life cycle
cost when compared to other flooring
systems.
Life Cycle
Cost Analysis
• Selection of colors and patterns with a
high reflectance may reduce the amount
of lighting required.
Optimize
Energy
Performance

80. LEED Platinum Certified
Green Epoxy Terrazzo
William D. McDowell Observatory

81. Green Epoxy Terrazzo
William D. McDowell Observatory

82. AlgorithmicTapestryinMadison,WI
http://www.damnfineart.com/archives/536

83. This concludes The American Institute of Architects Continuing
Education Systems Course
P.O. Box 2605
138 W. Lower Crabapple
Fredericksburg, Texas 78624
www.ntma.com
info@ntma.com

85. • Section 09 66 23 – Resinous Matrix Terrazzo
• Section 09 67 00 – Fluid Applied Flooring:
– Urethane Cement Systems
• Section 09 67 16 – Epoxy-Marble Chip Flooring
• Section 09 67 23 – Resinous Flooring
– Thin-Film Coatings
– Decorative Broadcast Vinyl-Flake
– Key Luster Metallic
• Section 09 67 26 – Quartz Flooring
Resinous Flooring Categories

86. Urethane Cement
Section 09 67 00
• Will not lose bond due to
moisture vapor transmission
• Withstand heavy & abusive
service
• Unaffected by thermal shock
• Low Maintenance, non-skid
• Resistant to bacterial growth
• Decorative appearance
available.
• Chemically Resistant
Ideal for industrial and
commercial settings including:
Commercial Kitchens
Food Preparation & Service
Food Processing and Packaging
Manufacturing Areas
Detention Facilities

88. Methyl Methacrylate (MMA)
Section 09 67 23
• Rapid Cure over a Wide
Temperature Range
• Indoor/Outdoor Use
• Withstand heavy & abusive
service
• Low Maintenance, non-skid
• Resistant to bacterial growth
• Decorative appearance
available.
• Good Chemical Resistant
Ideal for industrial and
commercial settings including:
Laboratories
Animal Housing & Research
Restrooms & Locker Rooms
Lobbies
Manufacturing Areas
Food/Beverage Processing &
Packaging
Detention Facilities
Pharmaceuticals

90. • 100% Solids Epoxy Coatings
• Chemical Resistant Epoxies
• Epoxy Novolac Coatings
• Polyaspartic Topcoats
• Urethane Topcoats
Coatings & Sealers
Section 09 67 23

91. • Epoxy Primer: 2-6 mils
• Epoxy Body Coat: 8-16 mils
• Epoxy or
Polyurethane Finish: 3-10 mils
13-32 mils
Typical Coating System

92. Epoxy Vinyl Flake Flooring

93. High-Build Coating

94. Key Luster Metallic
Section 09 67 00
• Highly decorative, artistic
appearance.
• Signature product
• Low odor application.
• Seamless and maintenance
free.
• Resistant to bacterial growth
and chemically resistant.
Ideal for commercial and
residential settings including:
Cafes and Coffee Houses
Bars
Restaurant Dining Areas
Retail Storefronts
Residential Kitchens
Lobby Floors and Walls

98. Decorative Quartz Flooring
Section 09 67 26
• Decorative, non-porous,
seamless finish
• Resistant to bacterial growth
• Optional integral cove base
• Chemically Resistant
• Highly Durable
• Easy to maintain
• 1/16” & 1/8” Broadcast Quartz
or 1/4” Troweled Quartz
Ideal for
commercial, industrial, or
institutional settings including:
Animal Care Facilities
Detention Facilities
Food Preparation Areas
Laboratories
Manufacturing Areas
Medical Facilities
Pharmaceutical Plants
Research Facilities
Schools
Shower, Locker, & Toilet Rooms

100. 1/8” Decorative
Quartz Lab
Applications

102. 1/8” Textured Self-Leveling Epoxy
System in Car Dealership Repair Area

103. Key Lastic SQT (Soft Quiet Topping)
Elastomeric Systems

104. Project Lifecycle – Epoxy Terrazzo Color Match
Project Inception Project Completion
CTS Services

105. On-Site Inspection
Office Lobby
Philadelphia, PA

106. Summary
Terrazzo is a cost effective flooring material with
exceptional beauty and ease of maintenance.
Surface Preparation is key to a successful
resinous flooring system.
Proper Concrete Repair before installation
Moisture Vapor Transmission – Test, Test, Test
Key Resin offers all types of resinous flooring
systems for your customers desires.

107. Thank You For
Your Time Today!
Please consider
Key Resin Co.
for your resinous
flooring & wall
requirements.
Phone: (610) 559-8182
www.corrosion-tech.com
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