California bearing ratio


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California bearing ratio

A ratio used in determining the bearing capacity of a foundation; defined as the ratio of the force per unit area required to penetrate a soil mass with a 3 sq in. (19.4 sq cm) circular piston at the rate of 0.05 in. (1.27 mm) per min to the force required for corresponding penetration of a standard crushed-rock base material; usually determined at a penetration of 0.1 in. (2.54 mm).

California bearing ratio (CBR)

The bearing ratio of soil determined by comparing the penetration load of the soil to that of a standard material. The method covers evaluation of the relative quality of subgrade soils but is applicable to sub-base and some base course materials (ICAO). The term is typically used in airfield construction.
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Tenders are invited for Conducting Benkleman Beam Test (as per IRC 81) and California Bearing Ratio Test (as per IS-2720, Part-XXXI) and different soil parameters test as per standerd guidelines for Birnagar Aranghata Road from 2.00 KMP to 7.00 KMP of Ranaghat Highway sub-division under Nadia Highway Division-II in the district of Nadia during the year 2016 2017.
In addition, field tests will be conducted including cone penetration tests (CPTs), falling head permeability, lagoon packer, pressuremeter, plate load, field California bearing ratio (CBR), and thermal resistivity tests.
Tenders are invited for Conducting Benkleman Beam Test ( as per IRC 81) and California Bearing Ratio Test (as per IS 2720, Part-XXXI) and different soil parameters test as per standerd guidelines for Santipur- Kalna Ghat Road from 0.00 Km to 8.00 Km of Ranaghat Highway sub-division under Nadia
Tenders are invited for Conducting Benkleman Beam Deflection Test (as per IRC-81) and California Bearing Ratio Test (as per IS-2720, Part-XXXI) and different soil parameters tests as per standard guidelines of Sl.

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