MATEC Web Conf.
Volume 179, 20182018 2nd International Conference on Mechanical, Material and Aerospace Engineering (2MAE 2018)
|Number of page(s)||6|
|Published online||26 July 2018|
Development of Gypsum Block of Energy Conservation and Waste Utilization
Department of Chemical Engineering, Hebei University of Science & Technology, Shijiazhuang, 050018, China
2 Hebei Engineering Research Center of Solid Waste Utilization, Shijiazhuang, 050000, China
a Corresponding author: firstname.lastname@example.org
Waste, parings and scraps (WPS) in shoemaking industry are difficult to deal with by traditional approaches, which will pollute the environment and results in waste of resources if not handled properly. In this paper, WPS, after modification, is used as reinforcing material in gypsum block, in which livestock-waste based retarder is used to control setting time. The result showed that the proper mass ratio of hemi-hydrate gypsum to WPS is 95:5. The optimal dosage of retarder is 0.23% (on the basis of total solid). The addition of modified WPS remarkably improved the characteristics of anti-cracking, water absorption, dry shrinkage and thermal conductivity of the gypsum block, with little decrease in mechanical strength values.
© The Authors, published by EDP Sciences 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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