Improving mechanical properties of sand using biopolymers

By H. Khatami, B. O’Kelly. 2013

231 citations recorded by the source corpus.

AbstractNatural polymers (biopolymers) are discussed as environmentally friendly and sustainable grouting chemicals. This paper presents guidelines for selecting potentially useful biopolymers for strengthening cohesionless soil. Agar and six modified starches were identified for further study over a range of concentrations (1–4% agar and 0.5–1% starch). Experimental results demonstrated the compatibility of agar and starch. Depending on the biopolymer concentration, the unconfined compressive strength of the sand treated with agar and starch biopolymers ranged from 158 to 487 kPa. Triaxial compression tests over a range of confining pressures also indicated that the biopolymers effectively increased the cohesion intercept and stiffness of the treated sand.

Subfields: Civil and Structural Engineering, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/38536679d016d493491b92d9cb58253f17190bca

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Civil and Structural Engineering

1. I. Chang
2. Gye-Chun Cho
3. J. Im

In Environmental Engineering

1. I. Chang
2. Gye-Chun Cho

Citations in the corpus

• Geotechnical engineering behaviors of gellan gum biopolymer treated sand (2016, background): “In addition, recent studies have shown the possibility of using gel-type biopolymers, such as agar gum, xanthan gum, and gellan gum, to enhance the strengthening efficiency in geotechnical soil treatment (Chang et al. 2015a, 2015c; Khatami and O’Kelly 2013).”