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  • 1. Ultimate Green Building: Lime & Industrial Hemp Pine Ridge Reservation Badlands, South Dakota May 2008
  • 2. Alex White Plume - Oglala Sioux Tribe Jeremy Briggs - Rapid City, SD Lime Technology Limited American Lime Technology Ultimate Green Building: Lime & Industrial Hemp In cooperation with:
  • 3. Community Center Building Constructed in 2001
  • 4. Wood siding was removed and re-used as shuttering forms for the interior Hemcrete walls
  • 5. A layer of OSB board was under the wood siding. This was also removed then re-used for the temporary support of the exterior Hemcrete wall
  • 6. OSB board is removed carefully then cleaned and set aside
  • 7. Cross-bracing installed to stiffen corners
  • 8. The first interior shuttering forms installed ripped from the 5/8” wood siding secured in place with 8” hex-head deck screws Hex-head deck screws
  • 9. End of Day One – 13 May 2008
  • 10. Mixing Begins…
  • 11. Hemcrete Materials Hemp Shiv Hemp Lime Binder
  • 12. MIX DESIGN: One Bag of Hemp Shiv Two Bags of Hemp Lime Binder Three Buckets of Water
  • 13.  
  • 14. Hemcrete staged on plywood at mixing station Material can rest up to 6hrs before placement
  • 15. Transfer to wheelbarrows
  • 16.  
  • 17. This batch was mixed with too much water and was spread on plywood and allowed to dry-out in the sun for a couple of hours prior to placement
  • 18.  
  • 19. Installation of metal lath
  • 20. This building required the use of metal lath on the exterior due to the wood framing not being encased in Hemcrete. The interior walls did not require metal lath as the Hemcrete material covers the wood framing by four full inches.
  • 21. Re-attach OSB board back over metal lath to keep Hemcrete straight
  • 22. Hemcrete is staged on floor for easy transfer to walls
  • 23. Hemcrete is shoveled in by hand in six inch layers
  • 24. Hemcrete is lightly tamped down with the end of a 2x4 2x4 tamping board
  • 25. Next layer is added
  • 26. Ready for next shuttering form to be installed
  • 27. Alex
  • 28. Hemcrete shown here behind the metal lath after removing the OSB board on the exterior - 30 minutes after placement
  • 29. Finished Hemcrete interior wall after shutter forms are removed 30 minutes after placement
  • 30. End of Day Two – 14 May 2008 120 cubic feet of Hemcrete placed
  • 31.  
  • 32.  
  • 33.  
  • 34.  
  • 35.  
  • 36. Remove the shuttering forms as soon as possible to allow the Hemcrete material to draw in the CO2 from the atmosphere which starts the carbonation process
  • 37. INTERIOR: A two coat lime plaster will be applied directly to this rough surface texture of the Hemcrete after about one week
  • 38. EXTERIOR: The exterior Hemcrete walls will receive a two coat hydraulic lime (½”) render after one week drying time. The new lime render will be finished with a beautiful natural earth limewash
  • 39. End of Day Three – 15 May 2008 200 cubic feet of Hemcrete placed
  • 40. BEFORE
  • 41. AFTER
  • 42.  
  • 43. The Hemcrete Builders
  • 44. www.americanlimetechnology.com