Daniel Woolfsmith

20080275149, Nov 6, 2008

Apr 28, 2008

12/110417

Tricia G. Ladely - Beaver PA, US
Blain Hileman - New Castle PA, US
Kristen Van Buskirk - Aliquippa PA, US
Rick Hughes - Beaver PA, US
Jiansheng Tang - Westfield IN, US
Daniel Woolfsmith - Bridgeville PA, US

NOVA CHEMICALS INC. - Moon Township PA

C04B 16/08

521 55

Methods of controlling the durability of and/or the amount of air in concrete formulations that include combining cement, water, and optionally aggregates, admixtures and/or additives to form a cement mixture; and adding prepuff particles to the cement mixture to form a concrete formulation. The prepuff particles have an average particle diameter of from 0.2 mm to 3 mm, a bulk density of from 0.015 g/cc to 0.35 g/cc, an aspect ratio of from 1 to 3, and a smooth continuous outer surface. The cured and hardened concrete formulation typically has a relative dynamic modulus of at least 70% determined according to Procedure A of ASTM C666 (2003). The amount of air in the concrete typically increases over the amount of air in similar formulations not containing prepuff particles, as determined according to ASTM C231, based on the volume percent of prepuff. The concrete formulations can be used to make articles.

20090078161, Mar 26, 2009

Sep 17, 2008

12/212059

Daniel Woolfsmith - Bridgeville PA, US
Larry Chappell - Cranberry Township PA, US
Luke Kimble - San Marcos TX, US

NOVA CHEMICALS INC. - Moon Township PA

C04B 14/38
C04B 12/00
C04B 24/26
C04B 7/02
C04B 7/32
C04B 9/00
C04B 7/14
C04B 7/12
C04B 14/10
C04B 14/22

106692, 106816, 524 5, 524 8, 106739, 106801, 106789, 106817, 106811, 106814, 106705

A method of reducing plastic shrinkage cracking in concrete compositions that includes a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water to form a concrete mixture; b) during or after (a), adding 1.5-40 volume percent of prepuff particles to the concrete mixture to form a concrete composition; c) placing the concrete composition in a form; and d) allowing the concrete to set and harden to form a hardened concrete article substantially free of plastic shrinkage cracking. 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 concrete composition has a density of from about 40 to about 135 lb./ft.

20090081446, Mar 26, 2009

Sep 17, 2008

12/212046

Daniel Woolfsmith - Bridgeville PA, US
Michael T. Williams - Beaver Falls PA, US
Rick Hughes - Beaver PA, US
Michael R. Kelley - Butler PA, US
John K. Madish - Beaver Falls PA, US
Kristen Van Buskirk - Aliquippa PA, US
Tricia Guevara Ladely - Beaver PA, US

NOVA CHEMICALS INC. - Moon Township PA

B32B 5/16

428323

A method of placing a concrete compositions including a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water; b) adding 1.5-40 volume percent of prepuff particles to form a concrete composition; and c) pumping the concrete composition to a point higher in elevation than the delivery point of the concrete to place the concrete. The concrete composition contains less than 30 volume percent of other light weighting aggregates and 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 placed concrete measured according to ASTM C 143 is greater than 1 inch and the concrete has a density of from about 40 to about 135 lb./ft.

20100273902, Oct 28, 2010

Jul 6, 2010

12/830637

Tricia G Ladely - Beaver PA, US
Blain Hileman - New Castle PA, US
Kristen Van Buskirk - Aliquippa PA, US
Rick Hughes - Beaver PA, US
Jiansheng Tang - Westfield IN, US
Daniel Woolfsmith - Bridgeville PA, US

NOVA CHEMICALS INC. - Moon Township PA

C04B 24/26

521 55

Methods of controlling the durability of and/or the amount of air in concrete formulations that include combining cement, water, and optionally aggregates, admixtures and/or additives to form a cement mixture; and adding prepuff particles to the cement mixture to form a concrete formulation. The prepuff particles have an average particle diameter of from 0.2 mm to 3 mm, a bulk density of from 0.015 g/cc to 0.35 g/cc, an aspect ratio of from 1 to 3, and a smooth continuous outer surface. The cured and hardened concrete formulation typically has a relative dynamic modulus of at least 70% determined according to Procedure A of ASTM C666 (2003). The amount of air in the concrete typically increases over the amount of air in similar formulations not containing prepuff particles, as determined according to ASTM C231, based on the volume percent of prepuff. The concrete formulations can be used to make articles.