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. 30, 2020
Filed:
May. 18, 2015
Solidia Technologies, Inc., Piscataway, NJ (US);
Asahi Kasei Construction Materials Corporation, Tokyo, JP;
Vahit Atakan, West Windsor, NJ (US);
Sadananda Sahu, Cleveland, OH (US);
Hirotaka Takase, Tokyo, JP;
Takayuki Kamata, Tokyo, JP;
Katsuhiko Kanno, Tokyo, JP;
Yoshihito Fukasawa, Tokyo, JP;
Omkar Deo, Piscataway, NJ (US);
David Vuong, Piscataway, NJ (US);
SOLIDIA TECHNOLOGIES, LTD., Piscataway, NJ (US);
ASAHI KASEI CONSTRUCTION MATERIALS CORPORATION, Tokyo, JP;
Abstract
An aerated composite material produced from carbonatable calcium silicate compositions (carbonation cured AAC) that has a compressive strength equivalent to autoclaved aerated concrete (ordinary AAC) at substantially the same density and a process of production of the same are provided. The composite material of the present invention comprises: a plurality of bonding elements, each including a core comprising calcium silicate, a first layer which partially or fully surrounds the core and is rich in SiO, and a second layer which partially or fully surrounds the first layer and is rich in CaCO; a plurality of filler particles having their particle sizes ranging from 0.1 μm to 1000 μm; and a plurality of voids; wherein the plurality of bonding elements and plurality of filler particles together form a bonding matrix and are substantially evenly dispersed in the matrix and bonded together, the plurality of voids are bubble-shaped and/or interconnected channels, a pore volume with a radius of 0.004 μm to 10.0 μm in the plurality of voids is 0.30 ml/composite material 1 g or less, and a estimated compressive strength expressed by the following formula (1): estimated compressive strength (absolute dry density=0.50)=compressive strength×(0.50+absolute dry density)is 2.0 N/mmor greater.