公开(公告)号：US20240025810A1

公开(公告)日：2024-01-25

申请号：US18357132

申请日：2023-07-23

Applicant: CEMENTOS ARGOS S.A.

Inventor： Diego Fernando MUÑOZ ,  David Julian SOTELO ,  Carlos Augusto OROZCO ,  Claudia Patricia RODRIGUEZ

IPC: C04B33/04 ,  C04B33/30 ,  C04B33/13

CPC classification number: C04B33/04 ,  C04B33/30 ,  C04B33/13 ,  C04B7/006

Abstract: A method for manufacturing calcined clays comprising extracting and mixing raw clays; dosing a reducing agent to the mixed raw clays and homogenizing the resulting mixture; reducing the particle size of the mixture to less than 10 mm; heating the mixture in a flash dryer or flash calciner until the mixture has between 0% and 5% moisture; calcining the dried mixture from 600 to 900° C., maintaining an oxygen concentration between 1 and 5%; and cooling the calcined clay from 900° C. to 120° C., and uses of such calcined clay resulting from the claimed method in cement and/or a cementitious material for preparing concrete.

公开(公告)号：US20250162940A1

公开(公告)日：2025-05-22

申请号：US18947110

申请日：2024-11-14

Applicant: CEMENTOS ARGOS S.A.

Inventor： Carlos Augusto OROZCO ,  Claudia Patricia RODRÍGUEZ HIDALGO

IPC: C04B14/10 ,  B28C1/16 ,  B28C1/22 ,  C04B7/43 ,  C04B20/00

Abstract: Uses of industrial waste clays for the manufacture of a supplementary cementitious material (SCM), wherein the industrial waste clays are kaolinitic clays selected from reject tails, cyclone tails, overburden/interburden from a refractory, ceramic, paper, oil or kaolin industries are described herein. A supplementary cementitious material (SCM) derived from calcined industrial waste clays wherein the obtained SCM maintain the same performance in comparison with other materials traditionally used and a method for manufacturing said SCM.