Paul M Sandberg

6816791, Nov 9, 2004

Oct 15, 2002

10/182114

David F. Myers - Acton MA
Felek Jachimowicz - Brookline MA
Joanna D. Blanchard - Merrimac MA
Neal S. Berke - N. Chelmsford MA
Josephine H. Cheung - Waltham MA
Paul J. Sandberg - Beverly MA
Frank G. Serafin - Peabody MA
Peter V. Coveney - Woodford Green, GB

W. R. Grace Co.-Conn. - Columbia MD

G06F 1900

702 25, 702 32, 73 6172

A novel methodology for rapid, cost-efficient discovery, identification, or improvement of additives and/or admixtures for hydratable cementitious compositions. Multiple formulations comprising hydratable cementitious compositions are deposited into a plurality of receptacles. A first assay output is obtained, such as through x-ray diffraction, which is then correlated to provide a second assay output value corresponding to physical or chemical properties of the cementitious compositions.

6997045, Feb 14, 2006

Dec 19, 2003

10/741747

Olafur H. Wallevik - Reykjavik, IS
Paul Sandberg - Beverly MA, US
David F. Myers - Acton MA, US

W.R. Grace & Co.-Conn. - Columbia MD

G01N 11/14
G01N 11/10

73 5428, 73 5438, 73 5439

Device and methods for rotationally mixing and rheological testing of sample liquids, such as cement particle suspensions, employ mixing blades and shear-resistant members having substantially noncoincident orbital paths. Rheology is assessed by measuring the resistance of the liquid to rotation of the device. Both rheological and calorimetric testing can be performed during mixing, which ensures uniformity of rheology and hence the accuracy of results.

7021123, Apr 4, 2006

Feb 9, 2005

11/054014

Olafur H. Wallevik - Reykjavik, IS
Paul Sandberg - Beverly MA, US
David F. Myers - Acton MA, US

W. R. Grace & Co.-Conn. - Columbia MD

G01N 11/14
G01N 11/10
G01N 11/00

73 5402, 73 5438, 73 5439, 73 5428

Device and methods for rotationally mixing and rheological testing of sample liquids, such as cement particle suspensions, employ mixing blades and shear-resistant members having substantially noncoincident orbital paths. Rheology is assessed by measuring the resistance of the liquid to rotation of the device. Both rheological and calorimetric testing can be performed during mixing, which ensures uniformity of rheology and hence the accuracy of results.

8518176, Aug 27, 2013

Oct 30, 2009

13/119306

Denise A. Silva - Arlington MA, US
Josephine Cheung - Lexington MA, US
Paul Sandberg - Beverly MA, US
Lawrence Roberts - Acton MA, US
Durga V. Subramanian - Lexington MA, US
John L. Gallagher - Bollingham MA, US
Lawrence L. Kuo - Acton MA, US

W. R. Grace & Co.-Conn. - Columbia MD

C04B 18/06

106705, 106DIG 1

Method for suppressing antagonistic hydration reactions in Portland fly ash cement involves the use of unponded fly ash that is pre-hydrated, preferably as an aqueous slurry wherein fly ash, preferably having an alkaline earth metal oxide of at least 10% by weight, is soaked, whereby the hydration reaction of the resultant mixed fly ash and cement is accelerated when these components are mixed together with water to hydrate the cement. Blended Portland cement/fly ash compositions of the invention will also have higher early strength as well as shorter set time compared to untreated blends.

20130125791, May 23, 2013

Jan 14, 2013

13/741071

Paul J. Sandberg - Beverly MA, US

ASH IMPROVEMENT TECHNOLOGY, INC. - Maspeth NY

B28C 5/02

106705, 366336

In-process systems and methods for treating coal combustion products with property-enhancing additives are disclosed. Coal combustion products such as fly ash are collected upon their formation and are contemporaneously treated with additives such as dispersants, rheology modifiers, retarders and accelerators to improve properties of the treated products when they are used in cement, concrete, mortar and other hydraulic mixtures.

20130125799, May 23, 2013

Jan 14, 2013

13/741127

Paul J. Sandberg - Beverly MA, US

ASH IMPROVEMENT TECHNOLOGY, INC. - Maspeth NY

F23G 5/033
B02C 23/08
F23G 5/08
F23J 1/00
F23J 7/00

110342, 241 2431, 110347, 110222, 110218

A method and system for reducing the un-burned carbon content in coal combustion products are disclosed. A coal combustion product is separated into a coarse particle fraction and a fine particle fraction, and the coarse particles are comminuted by milling, grinding or the like. Additives may be added of the coarse particles prior to comminution. The comminuted particles are then co-combusted with coal to burn at least a portion of the un-burned carbon contained in the original coal combustion product.

6500520, Dec 31, 2002

Aug 14, 2000

09/638331

Robert A. Wiercinski - Lincoln MA
Jyoti Seth - Andover MA
Neal S. Berke - Chelmsford MA
Paul J. Sandberg - Beverly MA

W. R. Grace Co. -Conn. - New York NY

D06N 704

428150, 428144, 428351, 428354

Coated articles, methods for making such articles, and waterproofing systems incorporating these. An exemplary coated article comprises a body with surface coating of inorganic particles reactive with hydroxide generated from hydration of concrete or mortar to form hydration products. The articles are designed to be used with cast concrete or masonry. The inorganic particles comprise at least one of (a) aluminum oxide trihydrate; (b) silica dioxide; (c) fly ash; (d) blast furnace slag, (e) silica fume; (f) an alkali or alkaline earth metal salts; or mixture thereof. The particles improve bonding with hydratable cementitious compositions that are cast against the coated surface and allowed to set.

20180022654, Jan 25, 2018

Jul 25, 2017

15/659334

- Dartmouth, CA
Joshua Jeremy Brown - Lower Sackville, CA
George Sean Monkman - Montreal, CA
Paul J. Sandberg - Beverly MA, US

C04B 40/00
B28C 5/46
B28C 7/12
B01F 15/00
C04B 28/02
C04B 40/02
B28C 5/42
G01F 1/86
C04B 22/10
C04B 22/06
G01F 1/00

Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.