Research Article

An Experimental Study on Solidifying Municipal Sewage Sludge through Skeleton Building Using Cement and Coal Gangue

Table 2

Chemical composition of coal gangue, clay, and cement (%).

SiO2AL2O3CaOMgOFe2O3K2ONa2O

Clay58.4225.230.510.120.245.322.67
Cement31.7316.3247.521.982.4500
Gangue45.4914.363.010.566.4100