Study on simplified classification method of coal gangue used as vegetation concrete coarse aggregate
CHENG Wenqing
WANG Shaojie
LIU Fusheng
ZHU Feng
Abstract：Using coal gangue to replace part of the gravel as coarse aggregate for the preparation of vegetation concrete,a simplified grading method of coal gangue coarse aggregate suitable for preparing vegetation concrete was obtained. The coal gangue with crushing index of less than 17% is grade I,that with crushing index between 17% to 23% is grade Ⅱ,and that with crush-ing index greater than 23% is grade Ⅲ. The failure of gangue vegetation concrete prepared by using grade Ⅱ gangue to replace part of the gravel is the combination of coarse aggregate damage and joint damage,which not only meet the strength requirements, but also achieve the use of coal gangue. The compressive strength of different grades of gangue vegetation concrete under different coal gangue replacement rate was obtained through experiments.
Keywords：coal ganguecrushing indexvegetation concretecompressive strength
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 48-50,54 )