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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Execute laboratory testing pertaining aggregates 
SAQA US ID UNIT STANDARD TITLE
14540  Execute laboratory testing pertaining aggregates 
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
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 in the executing standard laboratory testing pertaining to aggregate materials used in the Construction Industry.

This unit standard will enable learners to identify hazards and protective measures during aggregate testing, prepare aggregate samples for testing, identify and apply the required apparatus during testing, take readings and record these, execute calculations and record these, finalize test results.

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 
The following Standard methods of testing road construction materials - TMH 1 (Technical Methods for Highways):
  • Method B1 - The determination of the aggregate crushing value.
  • Method B2 - The determination of the 10 per cent fines aggregate crushing value.
  • Method B3 - The determination of the Flakiness Index of a coarse aggregate.
  • Method B4 - The sieve analysis of aggregates, including the determination of the material passing the 0,425 and 0.075 mm sieves.
  • Method B6 - The determination of the organic impurities in sand for concrete.
  • Method B7 - The determination of the Treton impact value of aggregate.
  • Method B9 - The determination of the bulk density of coarse and fine aggregate.
  • Method B10 - The determination of the shrinkage properties of concrete aggregate.
  • Method B11 - The determination of the adhesion of bituminous binder to stone aggregate by means of the chemical immersion test (Riedel & Weber)
  • Method B12 - The determination of the effect of soluble deleterious material in fine aggregate for concrete.
  • Method B13 - The determination of the fineness modulus of fine aggregates.
  • Method B14 - The determination of the dry bulk density, apparent relative density and water absorption of aggregate retained on a 4,75 mm sieve.
  • Method B15 - The determination of the dry bulk density, apparent relative density and water absorption of material passing the 4,75 mm sieve.
  • Method B 16T - Tentative method for the quantitative determination of the total water-soluble salts in soils and aggregates.
  • Method B17T - Tentative method for the quantitative determination of water-soluble sulphates in soils and aggregate.
  • Method B18(a) - The determination of the average least dimension of aggregates by direct measurement.
  • Method B18(b)T - Tentative method for the determination of the average least dimension of aggregates by computation.
  • Method B19 - The determination of the sand equivalent of aggregates. 

  • Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Plan the execution of the testing. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Instructions are received on the number and types of testing to be executed. 

    ASSESSMENT CRITERION 2 
    2. A testing programme is prepared in consultation with the laboratory manager and agreed upon. 

    ASSESSMENT CRITERION 3 
    3. Resources are identified as required in standard methods of testing and procured in consultation with the laboratory manager. 

    SPECIFIC OUTCOME 2 
    Prepare sampled material for testing. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Instructions requesting laboratory test are matched with labels attached to bags/containers holding material samples. 

    ASSESSMENT CRITERION 2 
    2. Material samples are prepared according to standard methods of testing. 

    SPECIFIC OUTCOME 3 
    Execute the laboratory tests. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The apparatus are prepared/calibrated according to the standard methods of testing. 

    ASSESSMENT CRITERION 2 
    2. Occupational Health and Safety hazards are identified and suitable action to protect staff or eliminate the hazards has been taken. 

    ASSESSMENT CRITERION 3 
    3. The laboratory tests are executed according to standard methods of testing. 

    SPECIFIC OUTCOME 4 
    Record and store test readings. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Laboratory test readings are recorded on suitably prepared stationary in line with details contained in standard methods of testing manuals. 

    ASSESSMENT CRITERION 2 
    2. Recorded results are stored in laboratory filing system. 

    SPECIFIC OUTCOME 5 
    Execute calculations and record results. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Calculations are executed in terms of standard methods of testing. 

    ASSESSMENT CRITERION 2 
    2. Calculation results are plotted and recorded on prepared stationary in terms of standard methods of testing. 

    SPECIFIC OUTCOME 6 
    Store and communicate test results. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Recorded test results are stored in laboratory filing system. 

    ASSESSMENT CRITERION 2 
    2. Laboratory test results are communicated to relevant stakeholders/management. 


    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 Certificates in Construction Materials Testing".
  • 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:
  • Planning the execution of laboratory testing for aggregate materials.
  • Preparing sampled materials for testing for aggregate materials.
  • Executing the laboratory tests for aggregate materials.
  • Recording and storing test readings for aggregate materials.
  • Executing calculations and recording results for aggregate materials.
  • Storing and communicating test results for aggregate materials. 

  • 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:
    Plan the execution of the testing.

    Assessment criteria:
    A testing programme is prepared in consultation with the laboratory manager and agreed upon. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others.

    Specific Outcome:
    Store and communicate test results.

    Assessment criteria:
    Laboratory test results are communicated to relevant stakeholders/management. 

    UNIT STANDARD CCFO ORGANISING 
    Employ self management.

    Specific Outcome:
    Prepare sampled material for testing

    Assessment criteria:
    Material samples are prepared according to standard methods of testing. 

    UNIT STANDARD CCFO COLLECTING 
    Manage information

    Specific Outcome:
    Record and store test readings.

    Assessment criteria:
    Laboratory test readings are recorded on suitably prepared stationary in line with details contained in standard methods of testing manuals. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively

    Specific Outcome:
    Store and communicate test results.

    Assessment criteria:
    Laboratory test results are communicated to relevant stakeholders/management. 

    UNIT STANDARD CCFO SCIENCE 
    Demonstrate scientific and technological competence.

    Specific Outcome:
    Execute calculations and record results.

    Assessment criteria:
    Calculations are executed in terms of standard methods of testing. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Understand Contextual world-systems.

    Specific Outcome:
    Store and communicate test results.

    Assessment criteria:
    Laboratory test results are communicated to relevant stakeholders/management. 

    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  48817   Further Education and Training Certification: Construction Materials Testing  Level 4  NQF Level 04  Reregistered  2023-06-30  CETA 
    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  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.
     
    1. IZWE TRAINING AND DEVELOPMENT 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.