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BS 1377 : Part 4 : 1990 |
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| California
Bearing Ratio Test (data for density) |
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| Location |
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Job ref. |
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Borehole/Pit no. |
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| Soil description |
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Sample
No. |
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Depth |
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m |
| Sample prep.
method BS1377: Part 4: 1990: 7.2.3/7.2.4/7.2.5* |
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| Preparation
procedure |
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Static,______________layer(s), with/without
tamping* |
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2.5 kg rammer/ 4.5 kg rammer/ vibrating hammer* |
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Specified density* |
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Volume of mould |
Specified effort* |
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________Mg/m3 |
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V________cm3 |
_______layers |
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_______blows
per layer |
| *Calculated
mass of soil required (m1) |
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g |
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| *Mass of mould
+ baseplate + soil (m3) |
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g |
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| *Mass of mould
+ baseplate (m2) |
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g |
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| *Mass of soil
(m3-m1) |
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g |
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| *Soaking time |
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days |
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| *Time for
water to appear at top of sample |
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| *Final
swell |
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mm |
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| *Mass of mould
+ baseplate + soil after soaking (m4) |
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g |
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| *Mass of soil
after soaking (m4-m2) |
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g |
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| Maximum
bearing ratio from plotting chart |
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% |
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| Bulk density
(unsoaked) |
*P=m1/V |
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Mg/m3 |
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Mg/m3 |
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*P=(m3-m2)/V |
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| Moisture
content (w) |
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% |
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| *Dry density
(unsoaked) |
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| Pd=100P/(100+w) |
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Mg/m3 |
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| *Delete as
appropriate |
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Operator |
Checked |
Approved |
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Form 4E |
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