SAQA

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SOUTH AFRICAN QUALIFICATIONS AUTHORITY

REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE:

Execute sampling of soils and gravels for testing

SAQA US ID	UNIT STANDARD TITLE
14546	Execute sampling of soils and gravels for testing
ORIGINATOR
SGB Civil Engineering Construction
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-
FIELD			SUBFIELD
Field 12 - Physical Planning and Construction			Physical Planning, Design and Management
ABET BAND	UNIT STANDARD TYPE	PRE-2009 NQF LEVEL	NQF LEVEL	CREDITS
Undefined	Regular	Level 4	NQF Level 04	15
REGISTRATION STATUS		REGISTRATION START DATE	REGISTRATION END DATE	SAQA DECISION NUMBER
Passed the End Date - Status was "Reregistered"		2018-07-01	2023-06-30	SAQA 06120/18
LAST DATE FOR ENROLMENT		LAST DATE FOR ACHIEVEMENT
2024-06-30		2027-06-30

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.

This unit standard does not replace any other unit standard and is not replaced by any other unit standard.

PURPOSE OF THE UNIT STANDARD

Learners who are assessed as competent against this unit standard will be able to demonstrate competence to sample soils and gravel for standard laboratory testing.

This unit standard will enable learners to identify hazards and protective measures during soils and gravel sampling, identify and prepare resource for sampling, execute sampling, label and transport samples to the laboratory.

The unit standard contributes to the overall competence required of the construction materials tester.

The laboratory test results are used for quality control purposes during the construction and manufacturing processes as well as for final acceptance of the finished products.

Its contribution to socio-economic transformation is that learners would be able to undergo RPL-assessment and thereby receive recognition for previous learning and experience. The employability and career prospects of learners can therefore be enhanced by this qualification. Previously disadvantaged individuals with this qualification can also start their own businesses supplying a construction materials testing service - a process that will accelerate economic transformation and give economic empowerment.

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING

NQF Level 4 in Literacy and Numeracy competencies.

UNIT STANDARD RANGE

Sampling for the following Standard methods of testing road construction materials - TMH 1 (Technical Methods for Highways):

Method A1(a) - The wet preparation and sieve analysis of gravel, sand and soil samples.

Method A1(b) - The dry preparation and sieve analysis of gravel, sand and soil samples

Method A2. - The determination of the liquid limit of soils by means of the flow curve method.

Method A3 - The determination of the plastic limit and plasticity index of soils.

Method A5 -The determination of the percentage of material passing a 0.075 mm sieve in a
soil sample.

Method A6 - The determination of the grain size distribution in soils by means of a hydrometer.

Method A7 - The determination of the maximum dry density and optimum moisture content of gravel, soil and sand.

Method A8 - The determination of the California Bearing Ratio of untreated soils and gravels.

Method A9 - The determination of the California Bearing Ration of lime-stabilized soils and gravels.

Method A10(a) -The determination of the in-place dry density of soil or gravel by the sand replacement method.

Method A10(b) - The determination of the in-place dry density and moisture content of soils and gravels by nuclear methods.

Method A11T -Tentative method for the determination of the maximum dry density and optimum moisture content of graded crushed stone and cohesionless sand by means of vibration compaction.

Method A12T - Tentative method for the determination of the relative density of soils.

Method A14 - The determination of the unconfined compressive strength of stabilized soils, gravels and sands.

Appendix to Method A14 - Procedure for the making of specimens for the determination of the unconfined compressive strength of stabilized soils, gravels and sands.

Method A15(a) - The determination of the cement or lime content of stabilized materials by means of the Ethylene Diamine Tetra Acetate (EDTA) test.

Method A15(b) - The determination of the cement or lime content of cement-stabilized or lime-stabilized materials by means of a flame photometer.

Method A15 (c) - The determination of the lime content of lime -stabilized materials using ammonium chloride.

Method A15(d) -The determination of the cement or lime content of stabilized materials by means of the back titration (acid) method.

Method A16T - Tentative method for the determination of the indirect tensile strength of stabilized materials.

Method A19 - The wet -dry durability test for cement -treated materials.

Appendix to Method A19 - Procedure for the making of specimens of soil-cement for the wet-dry durability test.

Method A20 - The electrometric determination of the pH value of a soil suspension.

Method A21T - Tentative method for the determination of the conductivity of a saturated soil paste and water.

Method A22T - Tentative method for the quantitative determination of acid-soluble sulphates in soils and aggregates by means of a nephelometer.

Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1

Determine the number, size and type of samples.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The number, size and type of tests to be performed are received.

ASSESSMENT CRITERION 2

2. The number, size and type of samples for each test to be performed, are identified in accordance to standard methods.

SPECIFIC OUTCOME 2

Prepare for sampling.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The resources required for sampling are identified and procured in accordance to standard methods.

ASSESSMENT CRITERION RANGE

Tools and apparatus, storage, transport, personnel.

ASSESSMENT CRITERION 2

2. Resources are prepared for the sampling process in accordance to standard methods.

SPECIFIC OUTCOME 3

Execute sampling.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The materials to be tested are identified.

ASSESSMENT CRITERION 2

2. Occupational Health and safety hazards are identified and appropriate steps taken to deal with this in accordance with legislation.

ASSESSMENT CRITERION 3

3. Sampling is executed in terms of Industry norms/standard testing methods/project specifications.

SPECIFIC OUTCOME 4

Label containers and transport samples to laboratory.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Containers are labelled according to organizational requirements.

ASSESSMENT CRITERION 2

2. Sampled materials are transported to laboratory.

ASSESSMENT CRITERION 3

3. Labelled containers are handed over to laboratory staff and receipt acknowledged.

UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS

Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the CETA - ETQA for "The National Certificate in the Supervision of Civil Engineering Construction Processes".

Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the CETA - ETQA.

CETA - ETQA, or other ETQA`s who have a Memorandum of Understanding in place with CETA-ETQA, would be responsible for moderation of learner achievements of learners who meet the requirements of this qualification.

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE

Understand and explain:

The number, size and type of samples for each test to be performed.

The Identification of soils and gravel to be sampled for testing.

The preparation for sampling of soils and gravel to be tested.

Sampling procedures of soils and gravel to be tested.

Labelling and transporting of sampled soils and gravel.

UNIT STANDARD DEVELOPMENTAL OUTCOME

N/A

UNIT STANDARD LINKAGES

N/A

Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING

Identify and solve problems.

Specific Outcome:
Identify material to be sampled.

Assessment criteria:
The materials to be tested are identified.

UNIT STANDARD CCFO WORKING

Work effectively with others.

Specific Outcome:
Label containers and transport samples to laboratory.

Assessment criteria:
Labelled containers are handed over to laboratory staff and receipt acknowledged.

UNIT STANDARD CCFO ORGANISING

Employ self management.

Specific Outcome:
Prepare for sampling.

Assessment criteria:
The resources required for sampling are identified and procured.

UNIT STANDARD CCFO COLLECTING

Manage information.

Specific Outcome:
Label containers and transport samples to laboratory.

Assessment criteria:
Containers are labelled according to organizational requirements.

UNIT STANDARD CCFO COMMUNICATING

Communicate effectively

Specific Outcome:
Label containers and transport samples to laboratory.

Assessment criteria:
Labelled containers are handed over to laboratory staff and receipt acknowledged.

UNIT STANDARD CCFO SCIENCE

Demonstrate scientific and technological competence

Specific Outcome:
Execute sampling.

Assessment criteria:
Sampling is executed in terms of Industry norms/standard testing methods/project specifications.

UNIT STANDARD CCFO DEMONSTRATING

Understand Contextual world-systems.

Specific Outcome:
Execute sampling.

Assessment criteria:
Occupational Health and safety hazards are identified and appropriate steps taken to deal with this.

UNIT STANDARD ASSESSOR CRITERIA

N/A

REREGISTRATION HISTORY

As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015.

UNIT STANDARD NOTES

N/A

QUALIFICATIONS UTILISING THIS UNIT STANDARD:

	ID	QUALIFICATION TITLE	PRE-2009 NQF LEVEL	NQF LEVEL	STATUS	END DATE	PRIMARY OR DELEGATED QA FUNCTIONARY
Core	23974	National Certificate: Construction Material Testing: Soils and Aggregates	Level 4	NQF Level 04	Passed the End Date - Status was "Registered"	2004-02-11	Was CETA until Last Date for Achievement
Elective	48817	Further Education and Training Certification: Construction Materials Testing	Level 4	NQF Level 04	Passed the End Date - Status was "Reregistered"	2023-06-30	CETA
Elective	23975	National Certificate: Construction Material Testing: Bituminous Materials	Level 4	NQF Level 04	Passed the End Date - Status was "Registered"	2004-02-11	Was CETA until Last Date for Achievement

PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD:

This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.

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