James Hardie Technology Limited

James Hardie International Finance B.v.

Shannon Marie Labernik

Hamid Hojaji

Basil Taha Naji

David Leslie Melmeth

Huagang Zhang

Thinh Pham

Xiangdong Feng

Kalynne H Paradis

Chongjun Jiang

Xiangyuan Liu

Amitabha Kumar

Liyan Ma

Chinmay Avinash Gowardhan

Michael John Julius

David John Sharman

Meiling Gong

Amlan Datta

James A McFarlane

Kalynne Andrea Paradis

A low density material and a method for preparing a low-density material and precursor for forming a low-density material are provided. An aqueous mixture of inorganic primary component and a blowing agent is formed, the mixture is dried and optionally ground to form an expandable precursor. Such a precursor is then fired with activation of the blowing agent being controlled such that it is activated within a predetermined optimal temperature range. The firing conditions are also controlled to provide a low density sphere containing a heterogeneous sphere wall structure comprising a combination of amorphous glass and a crystalline phase or gas phase or both.

Engineered low-density heterogeneous microparticles and methods and formulations for producing the microparticles

Cementitious formulations and their products with enhanced reactivity are provided. Formulations in certain embodiments may include at least one calcium source, a reactant and a filler in a hydrated environment, wherein the reactant, in one form, is crystalline silica that has been modified for reactivity. Enhancement of a reactant may include one or more modifications to its content, grind and/or the cement to silica ratio, as well as addition of one or more additives in the formulation, additives in the form of at least one alumina source, defoamer, catalyst and/or a clay.

Cementitious formulations and products

A method of preparing a low-density material and precursor for forming a low-density material is provided. An aqueous mixture of inorganic primary component and a blowing agent is formed, the mixture is dried and optionally ground to form an expandable precursor. Such a precursor is then fired with activation of the blowing agent being controlled such that it is activated within a predetermined optimal temperature range. Control of the blowing agent can be accomplished via a variety of means including appropriate distribution throughout the precursor, addition of a control agent into the precursor, or modification of the firing conditions such as oxygen deficient or fuel rich environment, plasma heating etc.

Methods for producing low density products

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Rancho Cucamonga, CA, United States of America

Shannon Marie Labernik