Study on the Construction Waste Composition and Strength Mechanism of Recycled Mixture

Table 3

Elemental composition and content of RCA obtained by X-ray energy spectrum analysis.

Element	No.1 weight	No.2 weight	No.3 weight	Average weight	No.1 atomic	No.1 atomic	No.1 atomic	Average atomic
O	68.34	70.02	72.94	70.43	83.38	79.45	89.12	83.99
C	14.13	14.72	12.56	13.8	9.8	8.77	7.24	8.6
Si	9.88	8.41	7.63	8.64	2.66	5.31	1.46	3.14
Ca	5.48	5.77	4.9	5.38	2.41	3.23	1.29	2.31
Mg	1.63	0.81	1.48	1.31	1.31	2.43	0.67	1.47
Fe	0.54	0.27	0.49	0.44	0.44	0.81	0.22	0.49