Abstract
Carbide slag is a solid waste which is difficult to handle. When it is used to substitute for lime to produce autoclaved aerated concrete (AAC) block without necessary treatments, the aeration efficiency is low and density of the AAC block is high. Besides, the initial mechanical strength of the block is lower because of lower curing temperature in static placing stage. The influence of hot water and pre-curing process (50 °C, 5 h) before static placing phase were investigated in this paper. The results show that when the substitution ratio of carbide slag for lime is below 50%, the performance of the AAC block is good enough to reach the level of standard GB11968-2006. As the substitution ratio is 38%, the compressive strength is 5.55 MPa with a dry density of 620 kg/m3. The application of carbide slag as substitution for lime is realized in production of AAC block and the production cost is well reduced.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
J.T. Hao, X.F. Jiang, H.W. Yang, et al., Research progress and application of carbide slag. J. Guangzhou Chem. Ind. 8, 45–46, 122 (2013)
Y. Zhang, X.W. Gong, W.W. Duan, Economy analysis on the application of autoclaved aerated concrete blocks. J. China Concr. Cem. Prod. 5, 60–62 (2010)
C.W. Du, G.Z. Li, Preparation and modification of fly ash aerated concrete block. J. Fly Ash. 4, 21–23 (2013)
C.X. Cao, Application on carbide slag in autoclaved fly ash aerated concrete. J. Zhuanwa. 5, 42–44 (2016)
F.Q. Zhao, J.Q. Liu, Q. Li et al., Study of foamed concrete from activated ash/slag blended cement. J. Adv. Mater. Res. 160–162, 821–826 (2010)
H.-H. Feng, Q. Huang, S.-H. Qu, The application study of fly ash content light foam concrete. J. Appl. Chem. Ind. 45(3), 520–524 (2016)
B. Cai, C. Dong, L. Liu, Z. Zhang, Analysis of lime production and energy consumption in China. J. Environ. Eng. 1, 124–127, 131 (2012)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Fuqiang, H., Xing, T., Fengqing, Z. (2018). Application of Carbide Slag in Autoclaved Aerated Concrete. In: Han, Y. (eds) Advances in Energy and Environmental Materials. CMC 2017. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-13-0158-2_85
Download citation
DOI: https://doi.org/10.1007/978-981-13-0158-2_85
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0157-5
Online ISBN: 978-981-13-0158-2
eBook Packages: EnergyEnergy (R0)