SAQA 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.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Demonstrate an understanding of and adjust concrete mix design 
SAQA US ID UNIT STANDARD TITLE
116591  Demonstrate an understanding of and adjust concrete mix design 
ORIGINATOR
SGB Civil Engineering Construction 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Civil Engineering Construction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  5 
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
2026-06-30   2029-06-30  

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 
The qualifying learner is capable of:
Integrating knowledge and understanding of factors affecting concrete specifications and concreting materials with skills for planning, organising and controlling a range of activities associated with concrete production and monitoring the quality of concrete produced. Demonstrate knowledge of: Use of concrete trial mix tables, Concrete slump test procedures, Concrete test cube procedures, Concrete properties, Techniques for mixing concrete, Different grades of concrete and aggregate sizes, correct use of admixtures and the effect of admixtures on stripping times

The competencies contained in this unit standard form part of the Elective learning of this qualification and extend beyond the mechanical completion of tasks associated with mixing concrete and contribute towards the professional development of the learner by equipping him/her with enhanced knowledge and skills for adjusting concrete mix design when supervising precast concreting activities ensuring all work is carried out in accordance with health and safety legislation and completed in accordance with specifications and industry standards.

This unit standard further contributes to socio-economic transformation in that learners will be able to undergo RPL-assessment and receive recognition for previous learning and experience, thereby enhancing the employability and career prospects of learners within the Civil Engineering Construction field. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
The following competencies will support the learner in the achievement of this unit standard:
Language and Communication in an official language at NQF Level 3
Language and Communication in a second official language at NQF Level 2
Mathematics literacy at NQF Level 3
Computer literacy at NQF Level 2
Read and interpret drawings and specifications at NQF Level 4. 

UNIT STANDARD RANGE 
The typical scope of this unit standard:

Assessment against this unit standard must be undertaken on site. On site refers to a wide range of building and construction environments within which trade skills are required, and includes concrete production and concrete construction sites.

Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Demonstrate an understanding of the factors affecting the concrete specification. 
OUTCOME RANGE 
Includes environmental, exposure, legal, structural and other aspects affecting the requirements for concreting. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
The clients brief / specification for the concrete is understood 

ASSESSMENT CRITERION 2 
The critical criteria for the specification of the concrete is understood and explained in terms of quality of product and cost. 

ASSESSMENT CRITERION 3 
Special materials required are identified in terms of durability, economy or other reasons 
ASSESSMENT CRITERION RANGE 
Special materials include but are not limited to: granulated ground blast furnace slag, fly ash, condensed silica fume, metakaolin, chemical admixtures and pigments.
 

SPECIFIC OUTCOME 2 
Select the most appropriate available materials. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Identify the suitable available concreting materials, obtain or test to determine those physical properties for mix design and suitability, and their unit cost, delivered to site. 

ASSESSMENT CRITERION 2 
Determine which of the available materials comply with the specification and any other requirements 

SPECIFIC OUTCOME 3 
Supervise production of concrete and concreting operations. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Select the most economical of these materials and design and make a trial mix or mixes 

ASSESSMENT CRITERION 2 
Adjust the mix to obtain the optimum fresh and hardened concrete properties and the most economical mix in terms of overall concreting costs (not just material costs). Confirm the cube strengths at, at least 7 and 28 days. 

ASSESSMENT CRITERION 3 
Calculate mix proportions and report both one bag and one cubic metre mixes. 

SPECIFIC OUTCOME 4 
Conduct fresh concrete test (slump). 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
The required test is conducted in accordance with normal concrete testing procedures. 

ASSESSMENT CRITERION 2 
The results of the test are recorded and reported in accordance with work place requirements 

SPECIFIC OUTCOME 5 
Prepare and test a concrete cube. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
The moulds are prepared filled and cured in accordance with normal concrete testing procedures. 

ASSESSMENT CRITERION 2 
The required test is conducted and results reported in accordance with normal concrete testing procedures when the concrete reaches required maturity. 


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 this unit standard or a similar unit standard at a higher NQF Level.
  • 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 
  • Use of concrete trial mix tables
  • Concrete slump test procedures
  • Concrete test cube procedures
  • Knowledge of Concrete properties, the uses of concrete for a range of structural applications and the appearance of concrete in terms of colour, texture and time-related changes
  • Techniques for mixing concrete
  • Different grades of concrete and aggregate sizes,
  • The correct use of admixtures and the effect of admixtures on stripping times
  • The purpose, function and uses of different types of concrete
  • Different types of specialised concrete, characteristics and use
  • The differences between normal concrete and specialised concrete and techniques for mixing, placing and curing specialised concrete 
    		•

    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:
  • Demonstrate an understanding of the factors affecting the concrete specification
  • Select the most appropriate available materials

    Assessment criteria:
  • The critical criteria for the specification of the concrete is understood and explained in terms of quality of product and cost.
  • Identify the suitable available concreting materials, obtain or test to determine those physical properties for mix design and suitability, and their unit cost, delivered to site. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others

    Specific outcome:
  • Conduct fresh concrete test (slump)
  • Prepare and test a concrete cube

    Assessment criteria:
  • The results of the test are recorded and reported in accordance with work place requirements
  • The required test is conducted and results reported in accordance with normal concrete testing procedures when the concrete reaches required maturity. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Employ self management

    Specific outcome:
  • Demonstrate an understanding of the factors affecting the concrete specification
  • Supervise production of concrete and concreting operations

    Assessment:
  • The critical criteria for the specification of the concrete is understood and explained in terms of quality of product and cost.
  • Select the most economical of these materials and design and make a trial mix or mixes 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Manage information

    Specific outcomes and assessment criteria:

    Demonstrate an understanding of the factors affecting the concrete specification
  • Special materials required are identified in terms of durability, economy or other reasons

    Supervise production of concrete and concreting operations
  • Calculate mix proportions and report both one bag and one cubic metre mixes. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively

    Specific outcome:
  • Conduct fresh concrete test (slump)

    Assessment criteria:
  • The results of the test are recorded and reported in accordance with work place requirements 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Demonstrate scientific and technological competence


    Specific outcome:
  • Demonstrate an understanding of the factors affecting the concrete specification
  • Select the most appropriate available materials

    Assessment criteria:
  • The critical criteria for the specification of the concrete is understood and explained in terms of quality of product and cost.
  • Determine which of the available materials comply with the specification and any other requirements 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Understand contextual world-systems

    Specific outcomes and assessment criteria:

    Select the most appropriate available materials
  • Determine which of the available materials comply with the specification and any other requirements

    Supervise production of concrete and concreting operations
  • Select the most economical of these materials and design and make a trial mix or mixes 
    		•

    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 
    Supplementary information:
    The following Acts and regulations are relevant:
  • Occupational Health and Safety Act 1993
  • SABS (South African Bureau of Standards) 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  49017   National Certificate: Construction Materials Testing  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  CETA 
    Elective  49016   National Certificate: Construction: Concreting  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  CETA 
    Elective  65949   Further Education and Training Certificate: Supervision of Construction Processes  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  CETA 
    Elective  49053   National Certificate: Supervision of Construction Processes  Level 4  Level TBA: Pre-2009 was L4  Passed the End Date -
    Status was "Reregistered"     		 2018-06-30  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. AVUXENI COMPUTER ACADEMY KZN 
    2. Big Tree Group 
    3. Certified Training Solutions (Pty) Ltd 
    4. Eastcape Training Centre 
    5. Eskilz College (Pty) Ltd 
    6. Novi General Services 
    7. Pro Skills Development (Pty) Ltd 
    8. Raubex Construction Pty (Ltd) 
    9. SEDA Construction Incubator Trust 
    10. Sonani Training and Communications 
    11. South African Value Education (Pty) Ltd 
    12. Thabomeleng 
    13. Training Force (Pty) Ltd 
    14. Zama Training & Development cc 


    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.