An overview of the patented and fully-engineered Stone Strong System of interlocking precast blocks and components.

1. The Innovative Precast Retaining Wall System Bob Lewis Engineering Services Stone Strong Systems Presenter: October 2007

2. Retaining Walls Precast Modular Block  Concept  Components  Design Theory  High Concept Solutions  Technical Support  Construction Details

3. The Concept of Stone Strong  Size/Mass  Scale  Versatility  Engineered  Precast

4. The Concept of Stone Strong  Size/Mass Patent No. 6,796,098 The Largest Retaining Wall Block available on the market to date! 8’ 3’ 3.67’

5. The Concept of Stone Strong  Size/Mass  Scale

6. The Concept of Stone Strong  Size/Mass  Scale  Versatility

7. The Concept of Stone Strong  Size/Mass  Scale  Versatility  Engineered Lifting Loops Recesses Voids Drainage

8. The Concept of Stone Strong  Size/mass  Scale  Versatility  Engineered  Precast

9. Systems Components 96” x 36” x 44” Weight: 6,000 lbs  24 SF Block Patent No. 6,796,098

10. Systems Components 96” x 36” x 44” Weight: 5,400 lbs  24 SF Top Block

11. Systems Components  Mass Extender Block 96”x36”x56” Weight: 10,000 lbs

12. Systems Components  6 SF Block 48” x 18” x 44” Weight: 1,500 lbs

13. Systems Components  3 SF Block 24” x 18” x 44” Weight: 800 lbs 24 SF Block 24 SF Block 24 SF Block 24 SF Block 24 SF Block 24 SF Block 24 SF Block 24 SF Block 6 SF Block 3 SF End Unit End Unit 6 SF Block 6 SF Block

14. Systems Components  End/Corner Block 48” x 18” x 24” Weight: 1,500 lbs

15. Systems Components 48” x 48” x 18” / 90º and 45º  Corner Blocks Patent No. 7,073,304

16. Systems Components  Dual Face Block 96” x 18” x 28” Weight: 3,520

17. Behind Stone Strong  Engineering Manual  Sound Engineering www.stonestrong.com/engineer

18. Design Theory  NCMA Design Manual for Segmental Retaining Walls  AASHTO Bridge Manual  Slopes/Surcharges  Embedment

19. Gravity Walls  Example Calculations COULOMB ACTIVE EARTH PRESSURE COEFFICIENT

20. Gravity Walls  Typical Gravity Wall Limits

21. Gravity Walls  Mass Extender & Tail Extension

22. Gravity Walls  Mass Extender & Tail Extension

23. Gravity Walls  Spreadsheet Solutions Spreadsheet Excel Document

24. Geogrid Reinforced Walls  Interaction Reports

25. Geogrid Reinforced Walls  Interaction Reports  SRWall Software

26. Geogrid Reinforced Walls  Interaction Reports  SRWall Software  Template

27. Construction Details  Detail Library  Web Site  CAD Detail Files Available www.stonestrong.com/engineer

28. Construction Details  Detail Library  Corners / Radius  24SF

29. Construction Details  Detail Library  Corners / Radius  6SF

30. Construction Details  Detail Library  Corners / Radius  Top End / Steps

31. Construction Details  Detail Library  Corners / Radius  Top End / Steps  Base / Embedment

32. Construction Details  Detail Library  Corners / Radius  Top End / Steps  Base / Embedment  Dual Face Block

33. Construction Details  Granual Unit Fill  Frictional interlock between units  Internal drainage  May Extend behind units for cut walls

34. Construction Details  Backfill Compaction!  Proper compaction (and moisture control) is critical part of retaining wall construction.

35. Construction Details  Typical Compaction Requirements  Min 95% of Standard Proctor (ASTM D698, AASHT0 T99)  Cohesive Soils, include moisture limits

36. Construction Details  Typical Compaction Requirements  No reduced compaction requirement behind Face  Less Sensitive to Displacement  Able to Support Compaction Equipment

37. High Concept Solutions  Integrated Structures

38. High Concept Solutions  Integrated Structures  Bridge Abutments

39. High Concept Solutions  Integrated Structures  Bridge Abutments  Tiered Walls

40. High Concept Solutions  Integrated Structures  Bridge Abutments  Tiered Walls  Pipe Penetrations

41. High Concept Solutions  Integrated Structures  Bridge Abutments  Tiered Walls  Pipe Penetrations  Pond Borders

42. High Concept Solutions  Integrated Structures  Bridge Abutments  Tiered Walls  Pipe Penetrations  Pond Borders  Hybrid Applications

43. Poor design yields poor performance, regardless of product!

44. Good Engineering + Well Engineered Product _______________________ Results that STAND UP!

45. Stone Strong Systems  Website  Engineering Manual  Thiele Geotech  Dealer Network www.stonestrong.com/engineer  Technical Support

46. Dealer Locations Dealer Locations

47. The Innovative Precast Retaining Wall System Bob Lewis Engineering Services Stone Strong Systems Presenter: October 2007