Effect of Keratin Structures from Chicken Feathers on Expansive Soil Remediation

Table 3

Nomenclature adopted for feather segments-soil mixtures.

Type of fiber	Feather segment; (wt %)	Nomenclature
Natural Soil	0.00	SN
Barbs	0.25	SMB-0.25%
Barbs	0.50	SMB-0.5%
Barbs	1.00	SMB-1%
Barbs	3.00	SMB-3%
Quill	0.25	SMQ-0.25%
Quill	0.50	SMQ-0.5%
Quill	1.00	SMQ-1%
Quill	3.00	SMQ-3%
Total fiber	0.25	SMT-0.25%
Total fiber	0.50	SMT-0.5%
Total fiber	1.00	SMT-1%
Total fiber	3.00	SMT-3%