haydite

haydite

[′hā‚dīt]
(materials)
Expanded shale, slate, or clay characterized by low unit weight and satisfactory structural properties; used as an aggregate to produce lightweight structural concrete.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

haydite

A lightweight aggregate, used in concrete, having an expanded cellular structure; produced by heating shale.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Summit Materials recently closed on Buildex Inc., Ottawa, Kan.-based proprietor of the Haydite brand of expanded shale lightweight aggregate.
Each CW tank was filled with graded smooth cobblestone ([empty set], 30-50 mm; height, 80 mm) as the bottom layer, haydite ([empty set], 5-8 mm; height, 100 mm) as the middle layer, and smaller haydite ([empty set], 3-5 mm; height, 120 mm) as the top layer.
Du et al., "Feasibility research on sintering municipal sewage for manufacturing haydite," China Water and Wastewater, vol.
When the bed temperature of the semicoke circulating in the fluidized bed is below 800 [degrees]C, shale ash with a well-developed pore structure and high activity can be obtained and it is suitable for producing building materials such as cement and haydite [16].
Wang and Song [23] investigated the failure criterion of the haydite concrete under triaxial loading.
The ash residue generated from combustion can be used as raw material of cement, haydite and building blocks.