Effect of Fiber Treatments on the Mechanical Properties of Sisal Fiber-Reinforced Concrete Composites

Table 5

Roughness parameters of sisal fiber at different treatment conditions.

Fiber treatment conditions	Ra (μm)	(μm)	(μm)	Rt (μm)
Raw	19.4	−78.6	42.6	121.3
2%–12 hr	25.6	−83.9	45.8	129.7
2%–24 hr	25.7	−93.3	51.2	144.5
2%–48 hr	26.5	−94.0	55.4	149.4
5%–12 hr	26.9	−96.7	57.0	153.7
5%–24 hr	27.0	−103.6	60.3	163.9
5%–48 hr	27.6	−103.9	57.6	161.5
10%–12 hr	27.6	−107.9	51.1	158.9
10%–24 hr	29.9	−110.4	38.7	149.0
10%–48 hr	32.4	−112.4	35.7	148.1