Results 131 to 140 of about 1,132 (183)

Performance optimization of black cotton soil stabilized with FGD gypsum and cement via response surface methodology. [PDF]

Sci Rep
Linganagoudar CM, Kumar GS, Ujwal MS, Ullur VS, Pandit P.   +4 more
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SUBGRADE SOIL STABILIZATION WITH GEOSYNTHETICS

2023
Subgrade soil stabilization is the process of improving soil properties to develop shear strength, durability, and fill the interparticle space, etc. Geotextile reinforcement is better than other methods of soil reinforcement. These are synthetic and non-biodegradable materials.
Soumya R Madhavi, Gopal Rao Kulkarni, Divya Nair, Ajay H A   +3 more
openaire   +1 more source

Resilient Properties of Subgrade Soils

Transportation Engineering Journal of ASCE, 1979
Resilient properties of 50 typical Illinois fine-grained soils were evaluated. Soil resilient properties can be related to soil characteristics (texture, plasticity, organic carbon content, AASHTO group index). Current soil classification procedures do not group fine-grained soils into groups with distinctive resilient properties.
Marshall R. Thompson, Quentin L. Robnett
openaire   +1 more source

Permanent Deformation of Subgrade Soils

Analysis of Asphalt Pavement Materials and Systems, 2007
Few research projects have been conducted on the permanent deformation of subgrade soils in China. Based on a comprehensive literature review, a testing procedure to evaluate permanent deformation in subgrade soils is developed and presented in this paper.
Zhong-yin Guo, Hong-liang Zhang, Lin Cong, Qi-ju Gao   +3 more
openaire   +1 more source

Design Subgrade Resilient Modulus for Florida Subgrade Soils

2003
Many agencies still use empirical correlations developed to determine design subgrade resilient modulus based on California Bearing Ratio (CBR), R-Value or Soil Support Value (SSV) for pavement design projects. These relationships do not consider the stress dependency of the laboratory determined resilient modulus value. Backcalculated subgrade modulus
N Bandara, GM Rowe
openaire   +1 more source

Behaviour of Subgrade Soil Reinforced with Geogrid

International Journal of Pavement Engineering, 2004
The beneficial effects of reinforcing subgrade soils with a single layer of geogrid and their behaviour under static and cyclic loading are investigated. Three types of soil and two types of geogrid varying in their stiffness were selected. CBR, static triaxial and unconfined compression tests were conducted by reinforcing the samples at different ...
Moustafa Ahmed Kamel, Satish Chandra, Praveen Kumar   +2 more
openaire   +1 more source

Modification of Highway Soil Subgrades

1994
Major study objectives were to develop highway pavement subgrade stabilization guidelines, examine long-term benefits of chemical stabilizers, such as cement, hydrated lime, and two byproducts from industrial processes, and to establish a subgrade stabilization program in Kentucky. In developing a program, a number of design and construction issues had
Hopkins, Tommy C., Beckham, Tony L., Hunsucker, David Q.   +2 more
openaire   +1 more source

Moisture Flow in Unsaturated Subgrade Soils

Advances in Unsaturated Soil, Geo-Hazard, and Geo-Environmental Engineering, 2011
The rate of moisture flow in an unsaturated soil regime is governed by a single diffusion material parameter, α. The unsaturated diffusivity coefficient controls transient moisture flow conditions within a soil in response to suctions or fluxes imposed at the boundaries of the soil mass.
Daniel Mabirizi, Rifat Bulut
openaire   +1 more source

CBR Strength of Treated Subgrade Soils

2021
Calcium-based stabilizing agents have been extensively used to improve the engineering properties of base and subgrade layers of pavement systems. Recently, polymers and chemical stabilizers have become popular due to cost efficiency, ease of application, and fast curing times.
Hari Kumar Reddy Yarrapureddi, Gokhan Saygili, Mena I. Souliman   +2 more
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Climatic Parameter TMI in Subgrade Soils

Climatic Effects on Pavement and Geotechnical Infrastructure, 2014
This paper evaluates historical climatic data acquired from Mesonet weather stations across Oklahoma for pavement applications. Thornthwaite Moisture Index (TMI), a climatic parameter, is widely used in geotechnical engineering as well as other disciplines to evaluate the changes in moisture conditions in near surface soils in the unsaturated zone.
Er Yue, Lizhou Chen, Rifat Bulut, Qi Cheng   +3 more
openaire   +1 more source