Solidia Technologies, Inc.

Rutgers, the State University of New Jersey

Holcim Technology Ltd

Lafarge

Asahi Kasei Construction Materials Corporation

Vahit Atakan

Richard E Riman

Sadananda Sahu

Sean Camron Quinn

John P Kuppler

Deepak Ravikumar

Kenneth Michael Smith

Devin Patten

Xudong Hu

Nicholas J DeCristofaro

Daniel Castoro

Omkar Deo

Qinghua Li

Ahmet Cuneyt Tas

Surojit Gupta

Anuj Seth

Larry E McCandlish

Günther Walenta

Vincent Meyer

Cédric Comparet

Orlando Narine

David Vuong

Nicholas Decristofaro

Sean Quinn

Kenneth R Smith

Jitendra Jain

Oguzhan Oflaz

Francis Henn

Alan Blacklock

Dawid Zambrzycki

George Matthew Perry

Gunther Walenta

Cedric Comparet

Yoshihito Fukasawa

Daniel Castro

Ling Tang

Cekdar Vakifahmetoglu

Thomas E Nye

Dan Castoro

Christopher J Grootenboer

Thomas Schuler

Sadanada Sahu

Andres Martiny

Takayuki Kamata

Katsuhiko Kanno

Shalendra Narine

Andrea Cecilia Montoya Jimenez

Steven Jensen

Mark Scantlebury

Jorge Mora

Emanuel Rojas

Tom Schuler

Hirotaka Takase

Kenneth M Smith

Larry E Mccandlish

George Perry

Alan Thomas Blacklook

Devin M Patten

John Kuppler

Tang Ling

The invention provides methods and compositions that prevent, mitigate or delay the onset of corrosion of iron or steel (e.g., plain carbon steel) components used as reinforcement or otherwise at least partially embedded in carbonated concrete composite materials and objects based on carbonatable calcium silicate cement.

Mitigation of corrosion in carbonated concrete based on low-calcium silicate cement

Synthetic pozzolans are produced using local materials to provide a cementitious material that is uniform in chemistry and properties independent of the location where the materials are obtained. Two methods of production are described. One is a high temperature process in which materials are processed in a semi-molten or molten state. The second process is a low temperature aqueous process.

Synthetic pozzolans

The invention provides composite materials comprising novel bonding elements exhibiting unique microstructures and chemical compositions, and methods for their manufacture and uses, for example, in a variety of concrete components with or without aggregates in the infrastructure, construction, pavement and landscaping industries.

Composite materials and bonding elements from carbonation of calcium silicate and methods thereof

A method of curing a low Ca/Mg cement composition is described that includes providing a predetermined quantity of the low Ca/Mg cement composition in uncured form; and reacting the uncured low Ca/Mg cement composition with a reagent chemical for a time sufficient to cure said cementitious material, wherein said reagent chemical is a compound synthesized from COand comprises dicarboxylic acids, tricarboxylic acids, or alpha-hydroxycarboxylic acids.

Cement chemistries

The invention provides novel paving stones and construction block composite materials and methods for preparation thereof. The paving stones and construction block composite materials can be readily produced from widely available, low cost precursor materials by a production process that involves compacting in a mold that is suitable for large-scale production. The precursor materials include calcium silicate, for example, wollastonite, and particulate filler materials which can comprise silicon dioxide-rich materials. Additives can include calcium carbonate-rich and magnesium carbonate-rich materials. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as colorants such as particles of colored materials, such as, and pigments (e.g., black iron oxide, cobalt oxide and chromium oxide). These paving stones and construction block composite materials exhibit visual patterns similar to stone as well as display compressive strength and water absorption equal to or better than that of stone.

Pavers and block composite materials and methods of preparation thereof

The invention provides novel apparatus and processes for gas flow and conditioning to achieve optimal COcuring of articles of composite materials (e.g., precast objects made of carbonatable calcium silicate-based cements), with solid interior or having hollow interior ducts, channels and chambers or otherwise being hollowed out, as well as the precast objects so made, which are suitable for a variety of applications in construction, pavements and landscaping, and infrastructure.

Conditioned curing systems and processes thereof

A bonding element, a bonding element matrix and composite materials with a wide range of attractive properties that may be optimized, including, but not limited to, mechanical properties, thermal properties, magnetic properties, optical properties and nuclear properties, as a result of a first layer and second layer structure or core, first layer, and second layer structure of the bonding elements, as well as methods for making the bonding elements and the corresponding ceramic and/or composite materials.

Bonding element, bonding matrix and composite material having the bonding element, and method of manufacturing thereof

The invention provides novel aerated composite materials that possess excellent physical and performance characteristics of aerated concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact.

Aerated composite materials, methods of production and uses thereof

The invention provides novel articles of composite materials having hollow interior channels or passageways, or otherwise being hollowed out, and formulations and methods for their manufacture and uses. These hollow core objects are suitable for a variety of applications in construction, pavements and landscaping, and infrastructure.

Composite materials, methods of production and uses thereof

The invention encompasses equipment used to condition a recirculating gas stream in order to cure a COComposite Material (CCM) and processes that use such equipment to cure the CCM. The gas conditioning equipment allows for a process that controls, reduces or eliminates the rate-limiting steps associated with water removal during the curing of a composite material. The equipment may include, but will not be limited to, control over the temperature, relative humidity, flow rate, pressure, and carbon dioxide concentration within the system; which includes the conditioning equipment, any vessel containing the CCM, and the material itself. Flow rate control can be used as a means to achieve uniformity in both gas velocity and composition.

Method and apparatus for the curing of composite material by control over rate limiting steps in water removal

The invention provides a novel, steam-assisted production methodology and associated compositions and methods of use in the manufacture of carbonatable or non-carbonatable metal silicate or metal silicate hydrate (e.g., calcium silicate or calcium silicate hydrate) compositions. These metal silicate compositions and related phases are suitable for use hydraulic, partially hydraulic or non-hydraulic cement that sets and hardens by a hydration process, a carbonation process or a combination thereof, and may be applied in a variety of concrete components in the infrastructure, construction, pavement and landscaping industries.

Steam-assisted production of metal silicate cements, compositions and methods thereof

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 &#x3bc;m to 1000 &#x3bc;m; 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 &#x3bc;m to 10.0 &#x3bc;m 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&#xd7;(0.50+absolute dry density)is 2.0 N/mmor greater.

Lightweight composite materials produced from carbonatable calcium silicate and methods thereof

The invention provides a curing system that is useful for curing materials that consume carbon dioxide as a reagent. The system has a curing chamber that contains the material to be cured and a gas that contains carbon dioxide. The system includes apparatus that can deliver carbon dioxide to displace ambient air upon loading the system, that can provide carbon dioxide as it is needed and as it is consumed, that can control carbon dioxide concentration, temperature and humidity in the curing chamber during the curing cycle and that can record and display to a user the variables that occur during the curing process. A method of curing a material which requires COas a curing reagent is also described.

Curing systems for materials that consume carbon dioxide and method of use thereof

Growing community of inventors

West Windsor, NJ, United States of America

Vahit Atakan