The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1977
Filed:
May. 24, 1976
Applicant:
Inventors:
Frank J Ball, Charleston, SC (US);
David V Braddon, Charleston Heights, SC (US);
Lynden J Stryker, Mount Pleasant, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 90 ; 106 97 ; 106314 ; 106315 ;
Abstract
Disclosed herein are low porosity aggregate-containing cement compositions comprising hydraulic cement containing substantially no calcium sulfate at least 0.1% alkali bicarbonate by weight based on dry ground cement, and at least 0.1% of a lignosulfonate or sulfonated lignin by weight based on dry ground cement, said aggregate-containing cement composition having been made at a water-to-cement ratio of between 0.4 and 0.15. Also, disclosed are methods for producing these low porosity aggregate-containing cements.