Preparation and Performance of Novel Functional Shield Residues-Based Unburned and Non-Autoclaved Ceramsite

Zhuo Zhang1, Feng-Jun Zhang1􀀍􀀍􀀍􀀍􀀍, Fa-Zhi Xie1, Wen-Jie Xie1, Yi Ding1, Jin Liu1, Shi-Chao Feng1, Wei Liu2, Lei Zhu3 and Won-Chun Oh3

1Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022, Anhui Province, P.R. China

2Garden Environmental Engineering Co. Ltd., China Railway 13th Bureau Group, Hefei 230051, Anhui Province, P.R. China

3Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Republic of Korea

Abstract

With the continuous expansion of city rail transit construction, the amount of shield residues was increased and caused serious threat to the city image and water quality. In this work, unburned and nonautoclaved ceramsite as well as colour ceramsite were prepared by using shield residues as raw material. The results showed that the water absorption rate of prepared ceramsite was about 30 % and better than that of commercially available sintering ceramsite. The methylene blue solution adsorption effect of prepared ceramsite was also better than sintering ceramsite. The cylinder pressure strength of the prepared ceramsite was about 1.5 MPa and bulk density of prepared ceramsite was about 0.827 g/cm3. After soaking the prepared ceramsite was still not cracked, this was suitable for cultivation as bonsai. The unburned and non-autoclaved ceramsite can effectively solidify shield residue, which can avoid the pollution of water quality and also provide a new way for good use of shield residue for energy saving and environmental protection.

Keywords

Shield residues, Unburned and non-autoclaved ceramsite, Adsorption, Cylinder pressure strength.

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  • Asian J. Mat. Chem. /
  •  2016 /
  •  1(1) /
  •  pp 25-29
  • DOI:http://dx.doi.org/10.14233/ajmc.2016.AJMC-P7