Table 3 Specifications of biopolymers.

From: Improving engineering properties of laterite soil using eco-friendly biopolymers: a study on strength and compressibility

Item

Specifications of biopolymers

Xanthan gum

Guar gum

Physical state

White to off-white

White to off-white

pH

6 to 8

5.5 to 7.5

Viscosity (1% solution in 1% KCl)

1400–1800 cps

5010–5300 cps

Moisture content

Max 12%

Max 12%

Particle size

#80–100% pass

#200 − 92% pass

#200 − 97% pass

Ash content

Max 13%

Max 13%