Investigation of the Effect of Nanoclay on Geotechnical Properties of Beach Sands and Its Comparison with Other Conventional Approaches

Farkhondeh, Soroush; Bahrami, Hossein; Ahadiyan, Javad

doi:10.22034/ijcoe.2025.395020.1027

Investigation of the Effect of Nanoclay on Geotechnical Properties of Beach Sands and Its Comparison with Other Conventional Approaches

Articles in Press

Document Type : Original Research Article

Authors

soroush farkhondeh ¹

hossein bahrami ²

javad ahadiyan ³

¹ Master of Civil Engineering, Khorramshahr University of Marine Science and Technology, Khoramshahr, Iran.

² Assistant Professor, Khorramshahr University of Marine Science and Technology, Khoramshahr, Iran.

³ Associate Professor, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

10.22034/ijcoe.2025.395020.1027

Abstract

Due to the expansion of industry and maritime transport, as well as the need for better use of coastal areas, in recent years, studies in this regard have been increased. Beach sandy soils (known also as blown sands), if exposed to the path of water flow, are washed away and do not show sufficient bearing capacity due to their uniform granulation and lack of adhesion. Soil improvement to increase its bearing capacity and enhance its geotechnical properties through new technologies such as nanomaterials has led to successful results in engineering. In this study, the effect of using nano clay on improving the geotechnical properties of beach sand has been evaluated and compared to other methods such as the use of cement and clay with high plasticity properties. The mixture designs used in this study were selected for nano clay 1, 2 and 3% by weight, cement 5, 7 and 9%, and adhesive clay with a combined ratio of 1:9, 1:6 and 1:3. The results indicate the positive impact of nano clay, when used alone, on improving the plasticity and resistance parameters and particularly the proper performance of this material combined with other materials in improving soil properties, so that soil density increased by 1.89 g/cm3 using nano clay 1%. Besides, using nano clay 3%, soil compressive strength increased by about 119 kPa. In this work, the nano clay-cement combined performance was also examined, which indicated an increase in specific weight up to 1.91 g/cm3 in the compaction section.

Keywords

Sandy beach Soil

Soil Improvement

Nano Clay

Cement

Geotechnical Experiments

Subjects