Olive Stone Ash as Secondary Raw Material for Fired Clay Bricks

Table 1

Carbonate content, organic content, and CNHS analysis of raw materials.

Sample	Carbonate content (%)	Organic matter content (%)	%C	%H	%N	%S
OSA	39.54 ± 0.89	11.83 ± 0.12	11.60 ± 0.01	0.40 ± 0.02	0.012 ± 0.0	0.0
Clay	7.36 ± 0.33	2.29 ± 0.09	2.25 ± 0.01	0.34 ± 0.004	0.05 ± 0.002	0.032 ± 0.008

Determined according to ASTM D-2974.