Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2009-12-18
2010-10-26
Marcantoni, Paul (Department: 1793)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C264SDIG043
Reexamination Certificate
active
07820094
ABSTRACT:
A lightweight ready-mix concrete composition that contains 8-20 volume percent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum of components used does not exceed 100 volume percent;. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the composition measured according to ASTM C 143 is from 2 to 8 inches. After the lightweight ready-mix concrete composition is set for 28 days, it has a compressive strength of at least 1400 psi as tested according to ASTM C39.
REFERENCES:
patent: 3021291 (1962-02-01), Thiessen
patent: 3023175 (1962-02-01), Rodman, Jr.
patent: 3214393 (1965-10-01), Sefton
patent: 3257338 (1966-06-01), Sefton
patent: 3272765 (1966-09-01), Sefton
patent: 3547412 (1970-12-01), Klages et al.
patent: 3869295 (1975-03-01), Bowles et al.
patent: 4026723 (1977-05-01), Grof et al.
patent: 4098877 (1978-07-01), Ball et al.
patent: 4265964 (1981-05-01), Burkhart
patent: 4298394 (1981-11-01), Leeming et al.
patent: 4303756 (1981-12-01), Kajimura et al.
patent: 4303757 (1981-12-01), Kajimura et al.
patent: 4412961 (1983-11-01), DiBiasi et al.
patent: 4518550 (1985-05-01), Miettinen et al.
patent: 4725632 (1988-02-01), Vess
patent: 5069907 (1991-12-01), Mixon et al.
patent: 5211751 (1993-05-01), Arfaei et al.
patent: 5238749 (1993-08-01), Cueman et al.
patent: 5288480 (1994-02-01), Gaffar et al.
patent: RE35194 (1996-04-01), Gerber
patent: 5580378 (1996-12-01), Shulman
patent: 5586643 (1996-12-01), Zabron et al.
patent: 5622556 (1997-04-01), Shulman
patent: 5643510 (1997-07-01), Sucech
patent: 5725652 (1998-03-01), Shulman
patent: 5853634 (1998-12-01), Ontkean
patent: 5913791 (1999-06-01), Baldwin
patent: 6030446 (2000-02-01), Doty et al.
patent: 6033731 (2000-03-01), Liebert et al.
patent: 6080796 (2000-06-01), Liebert et al.
patent: 6127439 (2000-10-01), Berghmans et al.
patent: 6160027 (2000-12-01), Crevecoeur et al.
patent: 6242540 (2001-06-01), Crevecoeur et al.
patent: 6800129 (2004-10-01), Jardine et al.
patent: 6833188 (2004-12-01), Semmens
patent: 6851235 (2005-02-01), Baldwin
patent: 6908949 (2005-06-01), Arch et al.
patent: 6969423 (2005-11-01), Li et al.
patent: 2002/0117769 (2002-08-01), Arch et al.
patent: 2004/0065034 (2004-04-01), Messenger et al.
patent: 2004/0231916 (2004-11-01), Englert et al.
patent: 2006/0217464 (2006-09-01), Guevara et al.
patent: 2006/0225618 (2006-10-01), Guevara et al.
patent: 2007/0062415 (2007-03-01), Guevara et al.
patent: 0 652 188 (1995-05-01), None
patent: 2 539 410 (1984-07-01), None
patent: 90/71449 (1997-03-01), None
patent: 98/02397 (1998-01-01), None
patent: 00/02826 (2000-01-01), None
patent: 00/61519 (2000-10-01), None
patent: 01/66485 (2001-09-01), None
Dipl.-Ing. Thorsten et al., High Strength Lightweight-Aggregate Concrete; 2nd Int. PhD Symposium in Civil Engineering, 1998 Budapest, pp. 1-8.
The Use of Styrocell B Beads in Cellular Bricks, Plaster and Lightweight Concrete; Shell Chemicals Europe, Styrocell Bulletin, STY 1.4, Issued Mar. 1998, 1st Edition, pp. 1-8.
Sabaa, B.A., and Sri Ravindrarajah, R., “Controlling freeze and thaw durability of structural grade concrete with recycled expanded polystyrene aggregate”, Proceedings of the Second International Symposium on Structural Lightweight Aggregate Concrete, Jun. 18-22, 2000, Kristiansand, Norway, pp. 709-718.
Sri Ravindrarajah, R. and Tuck, A.J., “Properties of polystyrene aggregate concrete”, Proc. of the 13th Australasian Conf. on the Mechanics of Structures & Materials, Jul. 5-6, 1993, Wollongong, Australia, pp. 705-712.
Sri Ravindrarajah, R. and Tuck, A.J., “Properties of Hardened Concrete Containing Treated Expanded Polystyrene Beads”, Int. J. of Cement Composites, V 16, Dec. 1994, pp. 273-277.
Sri Ravindrarajah, R. and Sivapathasundaram, P., “Properties of Polystyrene Aggregate Concrete Having the Densities of 1300 and 1900 kg/m3”, Journal of the Australian Ceramic Society, 1998, pp. 217-222.
Sri Ravindrarajah, R., “Bearing Strength of Concrete Containing Polystyrene Aggregate”, Proceedings of the 8th RILEM Conference of the Durability of Building Materials & Components, Vancouver, Canada, 1999, pp. 505-514.
Sabaa, B.A., and Sri Ravindrarajah, R., “Investigation of Pull-Out Strength Between Polystyrene Aggregate Concrete and Reinforcing Steel”, Proceedings of the Second International Symposium on Structural Lightweight Aggregate Concrete, Jun. 18-22, 2000, Kristiansand, Norway, pp. 729-736.
Sabaa, B.A., and Sri Ravindrarajah, R., “Impact Resistance of Polystyrene Aggregate Concrete With and Without Polypropylene Fibres”, Proceedings of the Second International Symposium on Structural Lightweight Aggregate Concrete, Jun. 18-22, 2000, Kristiansand, Norway, pp. 719-728.
Naji, B. Sri Ravindrarajah, R. and Chung, H.W., “Flexural Behaviour of Ferrocement-Polystyrene Aggregate Concrete Composites”, Proc. of the First Australasian Congress on Applied Mechanics, Feb. 21-23, 1996, Melbourne, Australia, pp. 351-356.
Naji, B., Sri Ravindrarajah, R. and Chung, H.W., “Impact-Echo Response in Ferrocement-Polystyrene Beaded Concrete Laminates”, Proc. of the Int. Symp. On Non-Destructive Testing in Civil Engineering, Sep. 26-28, 1995, Berlin, Germany, pp. 503-511.
Sri Ravindrarajah, R. and Sivakumar, R., “Effect of Polystyrene Particle Shape on the Properties of Lightweight Aggregate Concrete”, Proceedings of the South African Conference on Polymers in Concrete, Jul. 2000, Kruger National Park, South Africa, pp. 195-203.
Sabaa, B.A., and Sri Ravindrarajah, R., “Compressive and Tensile Strength of “Adjusted Density” Concrete Using Expanded Polystyrene Aggregate”, Proceedings of the South African Conference on Polymers in Concrete, Jul. 2000, Kruger National Park, South Africa, pp. 133-141.
Hughes Rick
Kelley Michael R.
Ladely (Guevara) Tricia
Madish John K.
VanBuskirk Kristen
Marcantoni Paul
Matz Gary F.
NOVA Chemicals Inc.
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