Paul E Fendley

US Patent:

20150315078, Nov 5, 2015

Filed:

Apr 30, 2014

Appl. No.:

14/266748

Inventors:

- Hunt Valley MD, US
Peter TUTBURY - Brisbane, AU
Paul FENDLEY - Cockeysville MD, US
Dennis C. PARKER - Sparks MD, US
Rudolph COETZEE - Paxton MD, US

Assignee:

Active Minerals International - Hunt Valley MD

International Classification:

C04B 28/04
C04B 14/06
C04B 14/00
C04B 28/02

Abstract:

A composition, in the form of a concrete, cement paste, mortar or intermediate thereof, comprising one or more cementitious binder materials present in an amount ranging from 0.5% to 75% by weight of the composition, attapulgite present in an amount ranging from 0.01% to 1.00% by weight of the composition, and optionally water. Although subject to many uses, in some embodiments, the composition is suitable for applications in need or desire of self-consolidating concretes (SCCs), precast concrete, shotcrete, and the like. Although makeable by multiple methods, in some embodiments, the composition is made by mixing the component ingredients. In some embodiments, the composition has one or more properties chosen from superior aggregate suspension, eliminated segregation, improved workability, improved flowability, improved pumpability—or improved overall performance—of concretes.

US Patent:

20150239782, Aug 27, 2015

Filed:

Apr 30, 2014

Appl. No.:

14/266627

Inventors:

- Hunt Valley MD, US
Dennis C. PARKER - Sparks MD, US
Paul FENDLEY - Cockeysville MD, US
Rudolf M. COETZEE - Paxton MD, US
Steven B. FELDMAN - Cockeysville MD, US

Assignee:

Active Minerals International - Hunt Valley MD

International Classification:

C04B 18/12
C04B 14/00
E21B 43/12
C04B 28/04

Abstract:

A composition in the form of a backfill is described. The composition comprises one or more mine tailings present in an amount greater than 50% by weight of the composition, one or more cementitious binder materials present in an amount ranging from 0% to 12% by weight of the composition, attapulgite present in an amount ranging from 0.01% to 4.00% by weight of the composition, and water. The fines content (Fc) of the one or more mine tailings is greater than or equal to 3%. Although subject to many uses, in some embodiments, the composition is suitable for managing tailings to be stored above ground or underground. For example, in some embodiments, the composition is suitable for filling mined out areas.