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. 2016 Jul 23;9(8):611. doi: 10.3390/ma9080611

Table 4.

Green roof material made from dredged material.

Specimens	Material Weight	Water Adsorbed	Unit Weight		Dead Load		Dead Load (Saturated)		Water Retention
Specimens	(lb)	(mL)	(lb/ft³)	(kg/m³)	(lb/ft²)	(kg/m²)	(lb/ft²)	(kg/m²)	(%)
Column 1	2.29	270	52.40	839.30	26.20	127.91	33.02	161.21	26.04%
Column 2	2.39	280	54.72	876.53	27.36	133.58	34.43	168.12	25.85%
Column 3	2.42	270	55.43	887.86	27.71	135.31	34.53	168.61	24.61%
Average	2.36	273	54.18	867.89	27.09	132.27	34.00	165.98	25.50%
Std Dev.	0.06	4.71	1.29	20.74	0.65	3.16	0.69	3.38	0.63%