MATEC Web Conf.
Volume 142, 2018International Conference on Materials Applications and Engineering 2017 (ICMAE2017)
|Number of page(s)||6|
|Section||Building Materials and Properties|
|Published online||08 January 2018|
Preparation of Autoclaved Foamed Concrete Block from Fly Ash and Carbide Slag
Hebei University of Science & Technology, Shijiazhuang 050018, PR China
2 Hebei Engineering Research Center of Solid Wastes Utilization
* Corresponding author: firstname.lastname@example.org
To achieve the comprehensive utilization of solid waste and reduce costs, fly ash, carbide slag, and low-clinker cement were used to produce lightweight foamed concrete block. Granulated blast-furnace slag (GBFS) was used as composition correction material in the block. The effects of curing temperature and dosage of low-clinker cement on the performance of foamed concrete block were investigated. The optimal material proportioning is obtained: fly ash 58.5%, carbide slag 20%, GBFS 10%, gypsum 1.5% and low-clinker cement 10%. The proper curing regime is “temperature rising 4h-180°C constant temperature 4h-natural cooling”. The results indicate that the compressive strength of the block reaches 3.55 MPa while the density is 616.9 kg/m3. The performance of the product meets JC/T 1062-2007 (China professional standard of foamed concrete block).
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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