CBRT: California Bearing Ratio Tests - Data

• Class: Samples, Amalgamated Specimens and Laboratory Test Scheduling

Heading	Unit	Type	Example	Description
LOCA_ID		ID	327-16A	Location identifier
SAMP_TOP	m	2DP	24.55	Depth to top of sample
SAMP_REF		X	24	Sample reference
SAMP_TYPE		PA	U	Sample type
SAMP_ID		ID	ABC121415010	Sample unique global identifier
SPEC_REF		X	1a	Specimen reference
SPEC_DPTH	m	2DP	24.55	Depth to top of test specimen
CBRT_TESN		X	1	Test reference
CBRT_TOP	%	2SF	6.4	CBR at top
CBRT_BASE	%	2SF	5.2	CBR at bottom
CBRT_MCT	%	MC	15	Moisture content at top after test
CBRT_MCBT	%	MC	14	Moisture content at bottom after test
CBRT_IMC	%	MC	21	Initial moisture content
CBRT_BDEN	Mg/m3	2DP	1.84	Initial bulk density
CBRT_DDEN	Mg/m3	2DP	1.6	Initial Dry density
CBRT_SURC	kPa	0DP	10	Surcharge pressure applied
CBRT_SKDT		X	4 days in tap water	Details of soaking
CBRT_SWEL	mm	1DP	3	Amount of swell recorded during soaking (if applicable)
CBRT_REM		X		Test specific remarks
FILE_FSET		X	FS16	Associated file reference (eg test result sheets)

Notes - 3

• CBRT_SWEL should be used to report the amount of swelling recorded on the specimen in each test.
• CBRT_IMC allows the initial moisture content of the CBR test sample to be recorded which may differ from the after test moisture content especially if the sample is pre-soaked.
• CBRT_REM allows commentary for the addition of test specific remarks. For example, where CBR is tested at natural moisture content, natural moisture content % and natural moisture content -2% or to include details of whether curve correction was applied.