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A Modified California Bearing Ratio Test for Granular Materials
Geotechnical Testing Journal, 1978Abstract It is known that laboratory and field tests, under saturation conditions, yield different California Bearing Ratio (CBR) test values for granular material. This is due primarily to the higher laboratory strength of the specimen confined in a rigid cylinder.
M Livneh, J Greenstein
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Correlation of California Bearing Ratio with Shear Strength Parameters
Transportation Research Record: Journal of the Transportation Research Board, 2007The California bearing ratio (CBR) test is still widely used in the design and analysis of pavements. The CBR test is relatively expensive and time consuming. A method is proposed for correlating CBR values with the undrained shear strength of clay soils, or the effective internal friction angle of noncohesive soils.
Garry H. Gregory, Stephen A. Cross
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Load-Equivalency Factors Based on Extended California Bearing Ratio Method
Transportation Research Record: Journal of the Transportation Research Board, 1999The use of load-equivalency factors (LEFs) in pavement design is well established and represents a major factor in various design procedures. The use of the most commonly known AASHTO LEFs in the Israeli design method, however, leads to an underdesign of approximately 10 percent in pavement thickness or to a reduction of 70 percent in design life. New
Michael Divinsky +2 more
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Water Content Effect on California Bearing Ratio of Cohesive Soil
2020The CBR test is a simple and well-recognized method of assessing the strength of subgrade. There are also many other Geotechnical tests which can be used to ascertain the quality of the subgrade soil, the quality of the soil that is used for subgrade may differ and this may depend on the amount of water that seeps through the soil.
Chigozie Collins Okafor +1 more
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Prediction of California Bearing Ratio Using Particle Swarm Optimization
2019California bearing ratio (CBR) is one of the soul parameters for the pavement designs. CBR value can assess the stiffness and strength of the subgrade. Moreover, it was influenced by various properties such as index properties and compaction characteristics of the soils. The paper aims the viability of the swarm assisted particle optimization (PSO) for
T. Vamsi Nagaraju +2 more
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Prediction of California Bearing Ratio by Reliability Analysis: A Review
2019Reliability analysis is used as a vital tool to predict the uncertainty and take right decisions. It is very important for engineers to predict the behaviour of soil and construction-materials (after construction) used in infrastructures. California Bearing Ratio (CBR) test is performed to measure the strength of soil, is often used as a design ...
Harshita Bairagi +3 more
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Application of Geosynthetic Fibre in Soil and California Bearing Ratio Test
Advanced Science Letters, 2013Geosynthetic fibers are an established family of geomaterials used in a wide variety of civil engineering applications such as pavement systems. In pavement design, CBR ratio count as an important parameter. This study aims to investigate effect of fiber inclusion on CBR ratio.
Chegenizadeh, Amin, Nikraz, Hamid
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Pelatihan Uji Nilai California Bearing Ratio bagi Mahasiswa Teknik Sipil
Jurnal Pengabdian KOLABORATIFCBR (California Bearing Ratio) is a soil-bearing capacity test developed by the California State Highway Department. The principle of this test is penetration testing, which inserting an object into the sample. This way, the strength of the base soil or other materials used to make road pavements can be assessed.
Wardana Galih Pamungkas +2 more
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California Bearing Ratio tests on a lateritic gravel from Kenya
Transportation Geotechnics, 2015Abstract A series of California Bearing Ratio (CBR) tests have been carried out on a lateritic gravel from Kiunyu Quarry in Kenya. Standard CBR tests were carried out at a range of water contents and using three different levels of compaction. These were supported by specialist CBR tests carried out in a CBR apparatus that provided measurement of ...
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Effect of Soil Drainage on California Bearing Ratio of Soaked Clay
International Review of Civil Engineering (IRECE), 2016The quality of pavement is affected mostly by the type of subgrade soil, and in many countries, the subgrade soil is clay. The California Bearing Ratio CBR of clay is generally very low which leads to a thicker layer of pavement and sub base materials. This increase in quantities leads to a significant increase in cost.
Robert G. Nini, Michel Y. Chalhoub
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