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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.:

US 11780776 B1

PDFFull Text
Date of Patent:
Oct. 10, 2023

Filed:

Jan. 16, 2023

High-strength glass-ceramic-based lightweight aggregates and preparation method thereof

Applicant:

Wuhan University of Technology, Wuhan, CN;

Inventors:

Yunpeng Liu, Wuhan, CN;

Wenhao Wan, Wuhan, CN;

Fazhou Wang, Wuhan, CN;

Shuguang Hu, Wuhan, CN;

Assignee:

WUHAN UNIVERSITY OF TECHNOLOGY, Wuhan, CN;

Attorney:

WPAT, P.C

Primary Examiner:

Kevin E Yoon

Assistant Examiner:

Marites A Guino-O Uzzle

Int. Cl.
CPC ...
C03B 1/00 (2006.01); C03B 19/06 (2006.01); C03C 1/00 (2006.01); C03C 10/16 (2006.01); C04B 14/22 (2006.01); C04B 18/02 (2006.01); C04B 33/132 (2006.01); C04B 33/13 (2006.01); C04B 111/40 (2006.01); C03C 10/00 (2006.01); C04B 38/00 (2006.01);
U.S. Cl.
CPC ...
C04B 33/132 (2013.01); C04B 14/22 (2013.01); C04B 18/023 (2013.01); C04B 18/027 (2013.01); C04B 33/13 (2013.01); C04B 33/131 (2013.01); C03B 1/00 (2013.01); C03B 19/063 (2013.01); C03C 1/002 (2013.01); C03C 10/0063 (2013.01); C03C 10/16 (2013.01); C03C 2204/00 (2013.01); C04B 38/009 (2013.01); C04B 2111/40 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/442 (2013.01); C04B 2235/445 (2013.01); Y02P 40/60 (2015.11);
Abstract

The invention discloses high-strength glass-ceramic-based lightweight aggregates and the preparation method thereof. The mass ratio of raw material components is 50-70 parts of engineering muck, 20-40 parts of glass, 3-7 parts of calcium carbonate, 3-7 parts of magnesium oxide, and 2-10 parts of a nucleating agent; the nucleating agent is at least one of calcium fluoride, titanium dioxide, and chromium oxide. After crushing, mixing, and granulating, spherical particles with a particle size of 10-12 mm are formed; and then the product can be obtained after drying, sintering, and cooling. The obtained lightweight aggregate from the invention has a diopside matrix which provides high strength and a low water absorption rate at low densities. Moreover, waste glass and engineering muck could be utilized with high value.

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