Cymbopogon nardus Leaf Ash as an Alternative Material for Enhancing Concrete Strength

Table 3

XRF test results of CNLA (with mass of 225 mg/cm²) burned at 500°C.

No.	Component	Mass (%)
1	MgO	0.704
2	Al2O3	0.537
3	SiO2	32.0
4	P2O5	2.01
5	SO3	1.16
6	Cl	1.08
7	K2O	11.5
8	CaO	11.0
9	MnO	0.839
10	Fe2O3	1.34
11	CuO	0.0186
12	ZnO	0.129
13	Br	0.0204
14	Rb2O	0.0527
15	SrO	0.0720
16	Dy2O3	0.0471
17	Balance	37.5