This document summarizes restoration materials and techniques from several companies for anchoring, strengthening, and stabilizing structures. It discusses approaches that are minimally invasive and reversible such as stress reduction through increased bearing area. Various cement and epoxy-based anchoring systems, strengthening fabrics, and concrete repair materials are described. The document emphasizes that many of these technologies have been used for 15-30 years and have a proven track record in restoring historic and other structures.

1. Start With a Blank Slate

2. Historic Preservation
Restoration Materials
For Anchoring,
Strengthening & Stabilization
www.conspec-rep.com

3. ConSpec Mission:
To combine technology with tradition in both methods
and materials for
innovative, cost effective, engineered
solutions to the repair segment of the built
environment.
LinkedIn
Means, Methods and Materials for Restoration of the Built
Environment

4. AMBEX
CINTEC
HELIFIX
RUREDIL

5.  Historic Credo is to “Do no Harm” and to have
procedure reversible
 Stress Reduction by Increasing Bearing Area for weak
or friable structures
 Breathable Solutions for Concrete & Masonry
 Reasonable Surface Preparation for Substrate and
Grouting
 Ease of Installation

6. •Superplasticizers & Fibers
•Activated Cement – Pyrament
•DryFix Masonry Helical Anchors
•Cement (not epoxy) Capsule Anchors
•Socked Cement Anchors
•Cement Carbon Fiber Strengthening Systems

7. •Epoxy Coated Rebar
•Epoxy road patching materials
•Epoxy Anchors – after 30 years now certification is necessary
to install properly
•Epoxy coatings to mitigate flooring problems

8. CEMENT -> EPOXY -> CEMENT

9. • No One Wants To Be First
• Nobody Wants To Be Last
• Everyone Wants To Be In The Comfortable Middle
As one major owner put it,
“ Amtrak doesn’t do anything that Amtrak
hasn’t done before!”
TRUISM

10. Non resin easy to use concrete anchoring capsuls and self
consolidating concrete repair materials
AAC Cement
CapsuleAnchors &
SCC Concrete Repair
www.ambexcorp.com

11. Insert Capsule
Insert Anchor
Drill & Flush Hole with Water – Once!

12. Overhead – No Wedges Elev Temp Application

13. Seawall in Maine Otis Air Force Base

14. Bridge Signage Over HH Parkway
NYS DOT Approved

15. Erie Canal Lock 6 – 10,000+

16. Sympathetic Structural Stabilization or Strengthening of Masonry Structures
Structural Strengthening
Socked Cement
Anchoring &
Strengthening System
www.cintec.com

17. Anchor Length 3” to 120’ continuously socked

18. Reduced stress on weaker structures

19. Damp, Wet or Underwater Applications

20. Cut Restoration costs from 20 – 80%

21. Cut Time Factor by 20 – 80%

22. Combine With Other Systems for Maximum Benefit

23. 230 Park Avenue Guggenheim

24. First Lutheran Church

25. Goodwin Hotel

26. Hoboken Firehouse

27. MasonryTie System
DryFix, Helibar, Helibeam, Bowtie and other Masonry Rehabilitation
Materials
www.helifix.com

28. Retrofit DryFix Wall Tie

29. Crack Stitching Prep Crack Stitching Install

30. Multiple Helibar to Form Helibeam

31. Penetrate Multiple Joists to Form Web

32. FRCM – Fiber Reinforced Cement Matrix using carbon
or PBO fiber for structural strengthening and
stabilization of concrete and masonry structures
•Fire Resistant
•Breathable
•Application over Damp Substrates
•Ductile not Brittle Failure
•ICC Testing Completed

33. Fabric Comparison

34. Concrete (PBO) <-> Masonry (CARBON)

35. Moisten Cement Parge Coat

36. Embed Mesh Finish Coat

37. 2008 Parking Garage Portland ME

38. Becker Structural
Div. Thornton Tomasetti 11 Years

39. Norwalk Parking Garage Surface Prep

40. Base Coat PBO Fabric

41. Finish Cured
CLASS A Fire Rated

42. Existing Condition Concrete Repair
2010

43. Embed Mesh Finish Coat

44. Project Floor Penetration

45. Slab Strengthening Slab Strengthening

46. Washington Sq. Interior Brick

47. Training Completed Area

48. Boston Guastavino Tile Dome

49. Extrados Strips

50. Chimney Retrofit Chimney Retrofit

51. Base Coat Final Coat

52. CMU – No Ladder
Reinforcement Carbon Strips

53. Edging Final Finish

54.  ICC – ESR 3265
 AC 434
 ACI 549.4R-13
 New York City OTCR 2017-015
 Los Angeles – RR 26047

55.  Cement Silo - External Repair - Northeast
 Cement Silo - Internal Repair - Southeast -
Operating Temperature 450 deg F
 University Club - NYC - CMU Wall
 Cinder Crete slab Containment - Historic -
New York City

56.  Meadowbrook Manor - MA - CMU Wall
Stabilization
 Townhouse NYC - Stucco Strengthening
 Parking Garage with Spray Applied Zinc
 Falling Water – Specified
 Cooling Tower – Specified
 Row-House Fractured Brick Sidewalls -
Specified

57.  All of the technologies presented are at least 15 years
old
 Ruredil – Italy & Europe – US & Canada for past 10 years
 with others 20 plus
 Ambex – 25 years overhead roof anchoring in the mines
in South Africa
 Helifix – DryFix first used in 1990 in NYC
 And some over 30 years
 Cintec – First applications late 70’s with first US
application at Grace Church in NYC in 1990

58. THANK YOU