Using Recycled Glass and Zeolite in Concrete Pavement to Mitigate Heat Island and Reduce Thermal Cracks

Table 4

Chemical properties of fine aggregate, recycled glass, zeolite, and Portland cement.

Oxide	Fine aggregate	Recycled glass	Zeolite	Portland cement 42.5 R
SiO2 (%)	2.59	71.72	68.81	22.55
Al2O3 (%)	1.09	0.92	14.17	7.12
CaO (%)	95.09	8.50	1.91	61
MgO (%)	—	4.22	1.10	3.56
Fe2O3 (%)	0.92	0.11	1.84	3.81
K2O (%)	0.17	0.45	3.40	0.12
Na2O (%)	—	13.78	—	—