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cast_1.jpg (756×1008 2018/05/08 23:23 132.6 KB)

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C.A.S.T. Research
Fig. 1. Model wall panel formwork (C.A.S.T. photo).

cast_2.jpg (756×1008 2018/05/08 23:23 119.3 KB)

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C.A.S.T. Research
Fig. 2. Model wall panel formwork (C.A.S.T. photo).

cast_3.jpg (864×648 2018/05/08 23:23 77.3 KB)

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C.A.S.T. Research
Fig. 3. Completed wall panel plaster casts (C.A.S.T. photo).

cast_4.jpg (648×441 2018/05/08 23:23 93.5 KB)

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C.A.S.T. Research
Fig. 4. Placing blockouts and interior supports prior to stretching in fabric in full scale wall panel formwork (C.A.S.T. photo).

cast_5.jpg (663×474 2018/05/08 23:23 83.5 KB)

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C.A.S.T. Research
Fig. 5. Securing fabric and placing reinforcenment in full scale wall panel formwork (C.A.S.T. photo).

cast_6.jpg (864×648 2018/05/08 23:23 144.4 KB)

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C.A.S.T. Research
Fig. 6. Placing concrete in full scale wall panel formwork (C.A.S.T. photo).

cast_7.jpg (756×1008 2018/05/08 23:23 120.5 KB)

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C.A.S.T. Research
Fig. 7. Completed concrete wall panels (C.A.S.T. photo).

cast_8.jpg (550×740 2018/05/08 23:23 111.3 KB)

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C.A.S.T. Research
Fig. 8. Close up view of panel finish (C.A.S.T. photo).

cast_9.jpg (319×213 2018/05/08 23:23 13.1 KB)

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C.A.S.T. Research
Fig. 9. Formwork for full scale wall panel (C.A.S.T. photo).

cast_10.jpg (696×864 2018/05/08 23:23 72.1 KB)

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C.A.S.T. Research
Fig. 10. Completed full scale concrete wall panel (C.A.S.T. photo).

cast_11.jpg (430×643 2018/05/08 23:23 44.7 KB)

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C.A.S.T. Research
Fig. 11. Completed full scale reverse cast GFRC panel. (C.A.S.T. photo).

cast_12.jpg (424×654 2018/05/08 23:23 55.7 KB)

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C.A.S.T. Research
Fig. 12. Filtration of excess water and air bubbles through geotextile fabric (C.A.S.T. photo).

cast_13.jpg (682×411 2018/05/08 23:23 33.5 KB)

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C.A.S.T. Research
Fig. 13. Schematic isometric and section. (C.A.S.T. photo).

cast_14.jpg (560×365 2018/05/08 23:23 29.2 KB)

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C.A.S.T. Research
Fig. 14. Ribbed one-way slab fabric formwork system (C.A.S.T. photo).

cast_15.jpg (255×340 2018/05/08 23:23 19.3 KB)

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C.A.S.T. Research
Fig. 15. Model beam formwork (C.A.S.T. photo).

cast_16.jpg (800×600 2018/05/08 23:23 108.9 KB)

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C.A.S.T. Research
Fig. 16. Completed beam plaster casts (RPS photo).

cast_17.jpg (690×576 2018/05/08 23:23 64.5 KB)

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C.A.S.T. Research
Fig. 17. Model truss formwork (C.A.S.T. photo).

cast_18.jpg (1024×403 2018/05/08 23:23 49.9 KB)

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C.A.S.T. Research
Fig. 18. Completed truss plaster casts (C.A.S.T. photo).

cast_19.jpg (440×655 2018/05/08 23:23 48.5 KB)

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C.A.S.T. Research
Fig. 19. Plywood deck and fabric formwork for full scale variable section concrete beam (C.A.S.T. photo).

cast_20.jpg (904×837 2018/05/08 23:23 134.1 KB)

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C.A.S.T. Research
Fig. 20. Completed full scale variable section concrete beam (C.A.S.T. photo).

cast_21.jpg (413×575 2018/05/08 23:23 52.4 KB)

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C.A.S.T. Research
Fig. 21. Fabric formwork for full scale variable section concrete ‘pinch’ beam (C.A.S.T. photo).

cast_22.jpg (1024×672 2018/05/08 23:23 93.7 KB)

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C.A.S.T. Research
Fig. 22. Completed full scale variable section concrete ‘pinch’ beam (C.A.S.T. photo).

cast_23.jpg (971×499 2018/05/08 23:23 40.9 KB)

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C.A.S.T. Research
Fig. 23. Close up view of completed full scale variable section concrete ‘pinch’ beam (C.A.S.T. photo).

cast_24.jpg (576×529 2018/05/08 23:23 56.2 KB)

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C.A.S.T. Research
Fig. 24. Close up view of variable section concrete ‘pinch’ beam finish (C.A.S.T. photo).

cast_25.jpg (763×544 2018/05/08 23:23 80.8 KB)

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C.A.S.T. Research
Fig. 25. Plywood deck and fabric formwork for variable section beam (C.A.S.T. photo).

cast_26.jpg (1127×448 2018/05/08 23:23 91.3 KB)

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C.A.S.T. Research
Fig. 26. Completed full scale variable section concrete beam (C.A.S.T. photo).

cast_27.jpg (1474×422 2018/05/08 23:23 121.3 KB)

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C.A.S.T. Research
Fig. 27. Concrete beam installed at C.A.S.T. (RPS photo).

cast_28.jpg (1052×328 2018/05/08 23:23 51.6 KB)

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C.A.S.T. Research
Fig. 28. Testing of variable section concrete beam (C.A.S.T. photo).

cast_29.jpg (1125×592 2018/05/08 23:23 112.5 KB)

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C.A.S.T. Research
Fig. 29. Testing of variable section concrete truss (C.A.S.T. photo).

cast_30.jpg (666×929 2018/05/08 23:23 86.5 KB)

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Casa Dent
Fig. 1. Casa Dent - a private villa in Culebra, Puerto Rico (C.A.S.T. photo).

cast_31.jpg (660×932 2018/05/08 23:23 92.3 KB)

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Casa Dent
Fig. 2. Casa Dent - a private villa in Culebra, Puerto Rico (C.A.S.T. photo).

cast_32.jpg (431×649 2018/05/08 23:23 51.9 KB)

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Casa Dent
Fig. 3. Casa Dent - a private villa in Culebra, Puerto Rico (C.A.S.T. photo).

cast_33.jpg (663×930 2018/05/08 23:23 60.1 KB)

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Casa Dent
Fig. 4. Casa Dent - a private villa in Culebra, Puerto Rico (C.A.S.T. photo).

cast_34.jpg (251×197 2018/05/08 23:23 11.6 KB)

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Casa Dent
Fig. 5. Casa Dent - a private villa in Culebra, Puerto Rico (C.A.S.T. photo).

cast_35.jpg (281×654 2018/05/08 23:23 39.7 KB)

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C.A.S.T. Research
Fig. 35. Completed full scale column (C.A.S.T. photo).

cast_36.jpg (446×651 2018/05/08 23:23 25 KB)

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C.A.S.T. Research
Fig. 36. Completed full scale column (C.A.S.T. photo).

cast_37.jpg (557×418 2018/05/08 23:23 85.7 KB)

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C.A.S.T. Research
Fig. 37. Step 1 – Geotextile fabric hung from a frame (C.A.S.T. photo).

cast_38.jpg (360×257 2018/05/08 23:23 19.2 KB)

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C.A.S.T. Research
Fig. 38. Step 2- Uniform layer of GFRC is applied (C.A.S.T. photo).

cast_39.jpg (559×419 2018/05/08 23:23 56.2 KB)

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C.A.S.T. Research
Fig. 39. Step 3 – Resulting funicular shell is inverted to form mold (C.A.S.T. photo).

cast_40.jpg (558×400 2018/05/08 23:23 44.5 KB)

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C.A.S.T. Research
Fig. 40. Step 4 – Thin-shell funicular GFRC vault produced from mold (C.A.S.T. photo).

cast_41.jpg (661×559 2018/05/08 23:23 61.6 KB)

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C.A.S.T. Research
Fig. 41. Simple perimeter frame used to support fabric mold to form double curvature funicular thin-shell vault (C.A.S.T. photo).

cast_42.jpg (458×561 2018/05/08 23:23 39.6 KB)

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C.A.S.T. Research
Fig. 42. Fabric mold stretched lengthwise in frame to form double curvature funicular thin-shell vault (C.A.S.T. photo).

cast_43.jpg (543×554 2018/05/08 23:23 55.7 KB)

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C.A.S.T. Research
Fig. 43. Placing concrete and carbon grid in fabric mold to form double curvature funicular thin-shell vault (C.A.S.T. photo).

cast_44.jpg (1086×815 2018/05/08 23:23 87.1 KB)

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C.A.S.T. Research
Fig. 44. Removing 3 cm (1.2 in) vault from formwork. (C.A.S.T. photo).

cast_45.jpg (1127×724 2018/05/08 23:23 61.7 KB)

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C.A.S.T. Research
Fig. 45. Completed double curvature funicular thin shell vault (C.A.S.T. photo).

cast_46.jpg (1125×324 2018/05/08 23:23 51.7 KB)

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C.A.S.T. Research
Fig. 46. Perimeter frame with “keel” on which fabric is hung (C.A.S.T. photo).

cast_47.jpg (1133×358 2018/05/08 23:23 38.9 KB)

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C.A.S.T. Research
Fig. 47. Fabric stretched lengthwise in frame for double-curvature lenticular thin-shell vault (C.A.S.T. photo).

cast_48.jpg (1125×621 2018/05/08 23:23 72.5 KB)

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C.A.S.T. Research
Fig. 48. Placing concrete and carbon grid (Portland cement mortar mix used) for double-curvature lenticular thin-shell vault (C.A.S.T. photo).

cast_49.jpg (372×496 2018/05/08 23:23 40.2 KB)

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C.A.S.T. Research
Fig. 49. Placing concrete and carbon grid (Portland cement mortar mix used) for double-curvature lenticular thin-shell vault (C.A.S.T. photo).

cast_50.jpg (1126×498 2018/05/08 23:23 78.3 KB)

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C.A.S.T. Research
Fig. 50. Completed double-curvature lenticular thin-shell vault (C.A.S.T. photo).

cast_51.jpg (602×394 2018/05/08 23:23 38.9 KB)

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C.A.S.T. Research
Fig. 51. Fabric for forming rigid molds (C.A.S.T. photo).

cast_52.jpg (552×377 2018/05/08 23:23 23.6 KB)

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C.A.S.T. Research
Fig. 52. Simple open frame to support fabric (C.A.S.T. photo).

cast_53.jpg (268×201 2018/05/08 23:23 17.6 KB)

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C.A.S.T. Research
Fig. 53. Coated woven polyethylene fabric is stretched and secured to the open frame (C.A.S.T. photo).

cast_54.jpg (537×418 2018/05/08 23:23 37.2 KB)

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C.A.S.T. Research
Fig. 54. A uniform thickness of fiber-reinforced shotcrete is placed over the fabric (C.A.S.T. photo).

cast_55.jpg (560×420 2018/05/08 23:23 31.4 KB)

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C.A.S.T. Research
Fig. 55. Completed prototype plastic-coated mold (C.A.S.T. photo).

cast_56.jpg (649×379 2018/05/08 23:23 26.7 KB)

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C.A.S.T. Research
Fig. 56. Compression vault floor slab (C.A.S.T. photo).

cast_57.jpg (269×704 2018/05/08 23:23 23.4 KB)

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C.A.S.T. Research
Fig. 57. Hanging sheet of fabric used as mold to produce thin-shell wall panels (C.A.S.T. photo).

cast_58.jpg (560×747 2018/05/08 23:23 32 KB)

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C.A.S.T. Research
Fig. 58. Thin-shell curtain wall constuction (C.A.S.T. photo).

cast_59.jpg (489×712 2018/05/08 23:23 30.7 KB)

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C.A.S.T. Research
Fig. 59. Thin-shell curtain wall constuction (C.A.S.T. photo).

cast_60.jpg (321×704 2018/05/08 23:23 44.1 KB)

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C.A.S.T. Research
Fig. 60. Hanging sheet of polyolefin geotextile used as mold to produce thin-shell wall panels (C.A.S.T. photo).

cast_61.jpg (804×556 2018/05/08 23:23 72.1 KB)

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C.A.S.T. Research
Fig. 61. Thin-shell panel cast from a sheet of hanging geotextile fabric used as mold (C.A.S.T. photo).

mark_west.jpg (375×250 2018/05/08 23:23 69.4 KB)

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Mark West
Professor, University of Manitoba, Winnipeg, MB.

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