[1] [1] KHOSHNEVIS B. Automated construction by contour crafting: related robotics and information technologies［J］. Automation in Construction,2004,13(1): 5-19.

[2] [2] RAHUL A V,SANTHANAM M,MEENA H,et al. 3D printable concrete: mixture design and test methods［J］. Cement and Concrete Composites,2019,97: 13-23.

[3] [3] HOU S D,DUAN Z H,XIAO J Z,et al. A review of 3D printed concrete: performance requirements,testing measurements and mix design［J］. Construction and Building Materials,2021,273: 121745.

[4] [4] GAO Y. Development status of coal gangue as coarse aggregate of concrete［J］. Development Guide to Building Materials,2022,20(16): 4-6 (in Chinese).

[5] [5] YU L L,WANG A G,ZHONG X F,et al. Progress in the study of mechanical and durability performance of concrete with coal gangue aggregates［J/OL］. Materials Reports,2023: 1-19 ［2024-01-28］. https://kns.cnki.net/kcms/detail/50.1078.TB.20231227.1740.010.html (in Chinese).

[6] [6] WEN J R,LIU X T,LIU K P,et al. Study on clay coal gangue strengthening technology［J］. Bulletin of the Chinese Ceramic Society,2020,39(1): 233-241 (in Chinese).

[7] [7] WANG A G,ZHU Y Y,XU H Y,et al. Research progress of coal gangue aggregate for concrete［J］. Bulletin of the Chinese Ceramic Society,2019,38(7): 2076-2086 (in Chinese).

[8] [8] ZHU Y Y,WANG A G,SUN D S,et al. Characteristics of coal gangue fine aggregates after calcination and its effects on the improvement of mortar properties［J］. Journal of China Coal Society,2021,46(11): 3657-3669 (in Chinese).

[9] [9] XIAO J Z,ZOU S,YU Y,et al. 3D recycled mortar printing: system development,process design,material properties and on-site printing［J］. Journal of Building Engineering,2020,32: 101779.

[10] [10] ZOU S,XIAO J,DING T,et al. Printability and advantages of 3D printing mortar with 100% recycled sand［J］. Construction and Building Materials. 2021,273: 121699.

[11] [11] SAHIN H G,MARDANI-AGHABAGLOU A. Assessment of materials,design parameters and some properties of 3D printing concrete mixtures; a state-of-the-art review［J］. Construction and Building Materials,2022,316: 125865.

[12] [12] ZHANG C,DENG Z C,CHEN C,et al. Predicting the static yield stress of 3D printable concrete based on flowability of paste and thickness of excess paste layer［J］. Cement and Concrete Composites,2022,129: 104494.

[13] [13] WALLEVIK J E. Minimizing end-effects in the coaxial cylinders viscometer: viscoplastic flow inside the ConTec BML Viscometer 3［J］. Journal of Non-Newtonian Fluid Mechanics,2008,155(3): 116-123.

[14] [14] FEYS D,WALLEVIK J E,YAHIA A,et al. Extension of the Reiner-Riwlin equation to determine modified Bingham parameters measured in coaxial cylinders rheometers［J］. Materials and Structures,2013,46(1): 289-311.