Improvement in CBR value of soil reinforced with nonwoven geotextile sheets

Springer Science and Business Media LLC - 2021
Sanjay Thakur1, B. P. Naveen2, J. P. Tegar3
1Department of Civil Engineering, NRI Group of Institutions Bhopal, Bhopal, 462023, Madhya Pradesh, India
2Department of Civil Engineering, Amity University, Manesar, 122413, Gurgaon, India
3Department of Civil and Environmental Engineering, National Institute of Technical Teachers' Training and Research Bhopal, Bhopal, 462002, Madhya Pradesh, India

Tóm tắt

AbstractGeosynthetics are human made material used to reinforce soils to improve the bearing capacity and permeability of the soil, reducing soil settlement. Geosynthetics application plays a vital role in the highways constructions with no additive layers, such as cement concrete, asphalt concrete, or in a subgrade layer that affects the bearing capacity of unbounded layers. This paper presents the geosynthetics as a tensional material that has been used for reinforcement of clayey soil. Laboratory California bearing ratio (CBR) test samples were prepared with clayey soils. Clayey soil containing unreinforced soil and reinforced soil. The sample comprised thermally bonded nonwoven geotextiles (NW) and superior needle-punched nonwoven geotextiles (SNW) with different characteristics (NW 8, 10, 21, 30 and SNW 14, 25, 62, 75) with three-layered, based on the sample materials to perform defined tests. These tests show that, bearing ratio of reinforced soils with thermally bonded nonwoven geotextiles increases.

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