A Systematic Review on the Performance Characteristics of Sustainable, Unfired Admixed Soil Blocks for Agricultural and Industrial Waste Management

Table 7

Bulk density of unfired admixed soil blocks as reported in the reviewed articles.

Ref.	Binders/fibers	Binder/fiber content (% range)	Initial/unstabilized bulk density (kg/m^3)	Max. bulk density after stabilization (kg/m^3)	Percentage increase (+)/percentage decrease (−)
[8]	Cement	1–1.5	1913.17	1754.94	−8.27
	Sand	1–2.0
	Coconut fiber	0.4–0.8
[28]	9% cement + mineral wool waste	0–4.0	1782	1800	1.01
	9% cement + sisal fiber	0.1–0.4	1782	1764	−1.01
[29]	Cement	5.0–15.0	1854	1930	4.10
	10% cement + bitumen emulsion	2.0–10.0	1904	1968	3.36
	10% cement + calcium silicate	0.5–2.0	1904	2034	6.83
	Slaked lime	5.0–15.0	1836	1817	−1.03
[32]	Cement	3.0–9.0	1547	1674	8.21
[21]	Sugarcane bagasse	0.25–1.0	1951	1867	−4.31
	Coconut husk	0.25–1.0	1951	1857	−4.82
	Oil palm fruit	0.25–1.0	1951	1889	−3.18
[35]	Alkali-resistant glass	0.25–1.0	2040.6	1865.29	−8.59
	Polypropylene	0.25–1.0	2040.6	1812.12	−11.20
	Banana	0.25–1.0	2040.6	1985.18	−2.72
	Jute	0.25–1.0	2040.6	1979.49	−2.99
[38]	Fly ash: rice husk ash	100 : 0–0 : 100	2023.42	2153.33	6.42
[39]	Cement: clay oil	1 : 15	1812	1795	−0.94
	Rice husk ash	0–20