-SQA- SCOTTISH QUALIFICATIONS AUTHORITY NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION GENERAL INFORMATION. -Module Number Session

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1 -SQA- SCOTTISH QUALIFICATIONS AUTHORITY NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION GENERAL INFORMATION -Module Number Session Superclass- TK -Title- PLANT OPERATIONS: PRODUCING PRODUCTS FROM PROCURED MATERIALS (PILING) -DESCRIPTION GENERAL COMPETENCE FOR UNIT: Interpreting instructions, planning, organising and adopting safe working practices to produce materials and components for specialist bored or driven works. OUTCOMES (Elements of Competence) 1. interpret technical information to produce materials and components for specialist bored or driven works; 2. select materials for specialist bored or driven works; 3. select components for specialist bored or driven works; 4. prepare materials for specialist bored or driven works; 5. prepare components for specialist bored or driven works; 6. install structural components for specialist bored or driven works; 7. apply materials to produce structural components for specialist bored or driven works. This unit incorporates the standards of the CITB Lead Body. CREDIT VALUE: 1 NC Credit ACCESS STATEMENT: This module forms part of the level II SVQ in Construction: Plant Operations - Bored or Driven Works, details of which are given in the Support Notes, under Progression. There is no access statement for this module but it is designed to complement the other units in the SVQ and candidates would normally be expected to be receiving complementary industrial experience in a related field

2 For further information contact: Committee and Administration Unit, SQA, Hanover House, 24 Douglas Street, Glasgow G2 7NQ. Additional copies of this unit may be purchased from SQA (Sales and Despatch section). At the time of publication, the cost is 1.50 (minimum order 5). 2

3 NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION STATEMENT OF STANDARDS UNIT NUMBER: UNIT TITLE: PLANT OPERATIONS: PRODUCING PRODUCTS FROM PROCURED MATERIALS (PILING) Acceptable performance in this unit will be the satisfactory achievement of the standards set out in this part of the specification. All sections of the statement of standards are mandatory and cannot be altered without reference to SQA. OUTCOME (ELEMENT OF COMPETENCE) 1. INTERPRET TECHNICAL INFORMATION TO PRODUCE MATERIALS AND COMPONENTS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) Technical information derived from given sources, relates to the production of materials and components to be used for piling. Corrective actions are implemented to established practicable piling data and procedures. Oral or written instructions are correctly interpreted and implemented. RANGE STATEMENT Information sources: drawings; specifications; site plans; piling programme; manufacturers' technical information; statutory regulations; oral and written instructions; current health and safety legislation and official guidance. Corrective actions: drawings, specification and piling programme amendments. Calculations: multiplication; division; addition; subtraction. Locations: site - new and existing. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: extracting information from information sources; taking off dimensions, component sizes, component positions and bar marks from steel labels; taking off types of materials and components; determining mix proportions of concrete; 3

4 (viii) identifying the piling method; the application of amendment piling method; demonstrating responsibilities with regard to current health and safety legislation and official guidance; calculating from given information sources capacities, volumes, quantities, linear measurement and datum levels. Oral or written evidence of knowledge and understanding of: types and purpose of information sources; methods of checking inaccuracies in information sources; assessment and identification of potential risk to ill health; purpose of identifying piling method; procedure for amendments and options; purpose of pre-piling planning; types of materials used for bored and driven piling. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 2. SELECT MATERIALS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) The selection of materials complies with the specification in terms of quantity, quality and type. Corrective actions are implemented to establish utility of materials. Oral or written instructions are correctly interpreted and implemented. RANGE STATEMENT Information sources: drawings; site details; symbols; abbreviations; specifications; manufacturers' technical information; oral and written instructions; current health and safety legislation and official guidance. Corrective actions: defective (non-match) materials; material replacement procedures. Materials: sand; aggregates (natural and artificial); ordinary Portland cement; bentonite. Safety: personal protection legislation; materials handling regulations. Location: site - new and existing. 4

5 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: selecting materials; adopting recommended procedures where risk to health and safety exists. Oral or written evidence of knowledge and understanding of: types and purposes of information sources; types of cement used in piling activities; reasons for grading aggregates for concrete work; reasons for using bentonite; the characteristics, uses and limitations of bentonite; assessment and identification of potential risk to ill health; responsibilities with regard to statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 3. SELECT COMPONENTS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) The selection of components complies with the specification in terms of quantity, quality and type. Corrective actions are implemented to establish practicable piling data and procedures. Oral or written instructions are correctly interpreted and implemented. RANGE STATEMENT Information sources: site location and detailed drawings; specifications; reinforcement schedules; steel reinforcement labelling systems; manufacturers' technical information; oral and written instructions; current health and safety legislation and official guidance. Corrective actions: defective (non-match) components; component replacement procedures. Components: steel bars (reinforcement); saddles/stirrups; tie steel; spacer blocks; tremie pipes; steel casings (temporary and permanent); pile covers (temporary); pre-cast piles. Safety: personal protection legislation; materials handling regulations. Location: site - new and existing. 5

6 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: selecting components; adopting recommended procedures where risk to health and safety exists. Oral or written evidence of knowledge and understanding of: (viii) (ix) types and purposes of information sources; types of tremie pipes and attachments available; reasons for using tremie systems; purpose of temporary pile covers; types and sizes of steel casing available for permanent and temporary installations; characteristics, uses and limitations of the components in the range; methods for reporting defects in components; assessment and identification of potential risk to ill health; responsibilities with regard to statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 4. PREPARE MATERIALS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) (g) (h) The preparation of materials for piling activities conforms with material instructions or specifications. Materials are identified as applicable for piling activities. Preparation of materials is achieved in an industrially effective time determined by material processes and work schedules. The selection of tools, plant and equipment is appropriate to the work. Corrective actions are implemented in response to problems with materials or equipment. Work areas are kept free from debris on completion of activities. Working methods and activities optimise the use of available materials and manpower. Work method and activities satisfy current legislation. RANGE STATEMENT Information sources: drawings; specifications; piling programme; oral and written instructions; current health and safety legislation and official guidance; manufacturers' technical information. Tools and equipment: hand tools; mechanical mixers; storage tanks (bentonite). 6

7 Materials: Portland cement; aggregates (graded); sand; bentonite. Preparation processes: gauging; weighing; batching; mixing; testing bentonite (specific gravity); testing concrete; mixing by hand; mixing by mechanical mixer. Safety: personal protection legislation; materials handling regulations; machine operating procedures; HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. Location: site - new and existing. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: (viii) (ix) (x) (xi) manually handling bulk and bagged materials; gauging, weighing and mixing concrete materials by hand and mechanical methods; carrying out tests on concrete mixes including the slump test; making test cubes; transporting and conveying concrete to required locations; grading aggregates (sieve analysis); mixing bentonite slurry to given specification; measuring specific gravity of bentonite slurry; carrying out filtering/screening of bentonite slurry to eliminate waste products; checking slurry tank capacities; recommended procedures adopted where risk to health and safety exists. Oral or written evidence of knowledge and understanding of: (viii) (ix) (x) (xi) (xii) (xiii) (xiv) types and purpose of information sources; reasons for and methods of establishing correct proportions for concrete mixes; effect of incorrect proportioning; importance of water in mixing operations; reasons for using bentonite slurry; characteristics of bentonite and the importance of specific gravity and viscosity; reasons for testing concrete and the methods and equipment used for testing; actions to be taken to protect materials during storage and inclement weather; procedures for handling, transporting and placement of ready mixed materials; types of mixers suitable for mixing concrete materials; method of preparing bentonite for piling activities; assessment and identification of potential risk to ill health; reasons for grading aggregates for replacement and compaction piling activities; responsibilities with regard to statutory regulations. 7

8 All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 5. PREPARE COMPONENTS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) The preparation of components conforms with specifications/manufacturers' technical information. (b) The quantity of components is sufficient and minimises wastage. (c) The quality of components conforms with specifications. (d) Corrective actions are implemented in response to problems with components or equipment. (e) Work areas are kept free from debris on completion of activities. (f) Working methods and activities are correct in terms of: optimising the use of available materials and manpower; satisfying current legislation. RANGE STATEMENT Information sources: site location; drawings; specification; piling programme; schedules; reinforcement detail drawings; oral and written instructions; manufacturers' technical information; bar labelling; current health and safety legislation and official guidance. Tools and equipment: hand tools; portable power tools. Components: steel reinforcement; tie steel. Preparation processes: sorting; measuring; marking; cutting; bending; cleaning; assembling. Safety: personal protection legislation; manual handling regulations; machine operating procedures; abrasive wheel regulations; HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. Location: site - new and existing. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: preparing components including sorting, measuring, marking, cutting, bending, assembling, extending and cleaning; adopting recommended procedures where risk to health and safety exists. Oral or written evidence of knowledge and understanding of: 8

9 (viii) (ix) types and purposes of information sources; types and safe use of power supply including transformer; types of portable power tools and equipment suitable for cutting steel; reasons for cleaning steel and the type of equipment and methods used for this activity; methods of cutting steel using hand tools; methods of tying steel reinforcement for fabrications including extending; assessment and identification of potential risk to ill health; reasons for using steel as a reinforcement; responsibilities with regard to statutory regulations. All the performance criteria must be met and all items is the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 6. INSTALL STRUCTURAL COMPONENTS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) Components are positioned and secured to conform with a specification or instructions. The selection of tools and equipment is appropriate to the work. Corrective actions are implemented to prevent problems for personnel with materials or equipment. Work is completed to agreed time schedules. Work methods and activities are correct in terms of: optimising the use of available materials and manpower; satisfying current legislation. RANGE STATEMENT Information sources: site locations; component locations; drawings; specifications; manufacturers' technical information; statutory regulations; oral and written information; schedules; bar labels; current health and safety legislation and official guidance. Components: steel reinforcement; tie steel; extending fittings. Installation processes: manual handling; mechanical handling; fabricating (extending); tying; positioning and securing. Structures: piles; retaining walls. Locations: new and existing. 9

10 Safety: personal protection legislation; materials handling regulations; mechanical lifting regulations; HSW Act(Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: installing fabricated reinforcement using manual and mechanical lifting methods; positioning and securing fabricated reinforcement; adopting recommended procedures where risk to health and safety exists. Oral or written evidence of knowledge and understanding of: (viii) (ix) (x) (xi) types and purpose of information sources; assessment and identification of potential risk to ill health; types of mechanical lifting equipment used for handling and transporting steel fabricated components; importance of using kinetic methods of lifting when manually handling fabrications; types of fixings, uses and methods of fixing fabricated reinforcement; different steel ties and where to use them; different bar sizes; methods of bending basic stirrups, saddles and bar ends; need to be able to use banksman signals during direction of lifting and transporting fabrications using mechanical equipment; procedures for extending bar fabrications methods and fixings to ensure stability and secure connections; responsibilities with regard to statutory regulations. All the performance criteria must be met and all items in the range statement covered. OUTCOME (ELEMENT OF COMPETENCE) 7. APPLY MATERIALS TO PRODUCE STRUCTURAL COMPONENTS FOR SPECIALIST BORED OR DRIVEN WORKS PERFORMANCE CRITERIA (a) (b) (c) (d) (e) (f) The method of application produces the specified structural components. Corrective actions are implemented to prevent problems for personnel with materials or equipment. The selection of tools, plant and equipment is appropriate to the work. Work is completed to agreed time schedules. Work areas are kept free from debris on completion of activities. Work methods and activities are correct in terms of: 10

11 optimising the use of available materials and manpower; minimising damage to the natural environment; minimising damage to the built environment; satisfying current legislation. RANGE STATEMENT Information sources: drawings; specifications; symbols; schedules; manufacturers' technical information; schedules; piling programme; oral and written information; current health and safety legislation and official guidance. Materials: concrete; aggregates; bentonite. Equipment: vibrating pokers; pumping equipment; compressed air equipment. Processes: handling; transporting; placement; vibrating; application and recovery (bentonite); cleaning. Structures: piles; retaining walls. Locations: new and existing. Safety: personal protection legislation; machine operating procedures; HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: handling and transporting materials using manual and mechanical methods; placing and compacting materials to specification; operating plant and equipment involved with the bentonite processes including irrigation; recovery and filtration/cleaning; adopting recommended procedures where risk to health and safety exist. Oral or written evidence of knowledge and understanding of: (viii) (ix) types and purpose of information sources; reasons for using tremie pipes and equipment when placing concrete; methods used to compact concrete and the reasons for compaction; methods used to compact natural and artificial aggregates and the reasons for compaction; types of equipment used for compaction and vibration; importance of coverage of steel reinforcement; effect of vibration upon reinforcement and formwork; methods used to assess full compaction; the advantages and disadvantages of using ready mixed concrete on-site; 11

12 (x) (xi) (xii) (xiii) (xiv) (xv) (xvi) (xvii) the effects of aggregate type and size on the operation of vibrating pokers; safety requirements governing the placing of concrete; the importance of bentonite in piling activities and the reason for its use; the method of operating plant and equipment for the bentonite processes; the importance of viscosity, specific gravity, cleaning and recovery of bentonite; assessment and identification of potential risk to ill health; responsibilities with regard to current health and safety legislation and official guidance; responsibilities with regard to statutory regulations. All the performance criteria must be met and all items in the range statement covered ASSESSMENT In order to achieve this unit, candidates are required to present sufficient evidence that they have met all the performance criteria for each outcome within the range specified. Details of these requirements are given for each outcome. The assessment instruments used should follow the general guidance offered by the SQA assessment model and an integrative approach to assessment is encouraged. (See references at the end of support notes). 12

13 Accurate records should be made of the assessment instruments used showing how evidence is generated for each outcome and giving marking schemes and/or checklists, etc. Records of candidates' achievements should be kept. These records will be available for external verification. SPECIAL NEEDS In certain cases, modified outcomes and range statements can be proposed for certification. See references at end of support notes. Copyright SQA 1994 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 13

14 NATIONAL CERTIFICATE MODULE: UNIT SPECIFICATION SUPPORT NOTES UNIT NUMBER: UNIT TITLE: PLANT OPERATIONS: PRODUCING PRODUCTS FROM PROCURED MATERIALS (PILING) SUPPORT NOTES: This part of the unit specification is offered as guidance. None of the sections of the support notes is mandatory. NOTIONAL DESIGN LENGTH: SQA allocates a notional design length to a unit on the basis of time estimated for achievement of the stated standards by a candidate whose starting point is as described in the access statement. The notional design length for this unit is 40 hours. The use of notional design length for programme design and timetabling is advisory only. PURPOSE This unit is designed to enable the candidate to develop skills and knowledge related to producing components for specialist bored or driven piling work. SQA publishes summaries of NC units for easy reference, publicity purposes, centre handbooks, etc. The summary statement for this unit is as follows: This module will help you to acquire the skills and knowledge necessary to interpret technical information for the selection and preparation of materials and components and to install structural components and apply materials in the production of structural components for specialist bored or driven piling work. CONTENT/CONTEXT The candidate successfully completing this module will require underpinning knowledge and skills relating to the interpretation of technical information to facilitate the selection, preparation and installation/application of materials and components for specialist bored or driven piling work. The unit would be offered to candidates from the construction and related services industries. The skills are transferable within different working environments but the unit is primarily aimed at candidates whose normal place of work would be a site or similar environment. The range statement is applicable to all areas of construction and other related or similarly structured industries. The competences and underpinning knowledge gained in successfully completing this unit would be transferable across a range of disciplines within the built environment. 14

15 The unit deals with selecting, preparing and installing components and selecting, preparing and applying materials and is complemented by units dealing with related aspects of work in Construction: Plant Operations - Bored or Driven Works. It should be delivered as part of a structured programme of training and orientated to the context of the candidate's work and area of responsibility. APPROACHES TO GENERATING EVIDENCE The achievement of the underpinning knowledge required for this unit would be assisted by the use of slides and videos, and hands-on experience. Tutors/trainers should demonstrate practical elements step-by-step until the candidate feels confident enough to attempt them on his or her own, and the safety factors should be thoroughly emphasised. Supervisors and employers could also play an important part in assisting candidates to generate evidence. ASSESSMENT PROCEDURES Candidates will be able to provide evidence of performance using a variety of methods. These will include: - Performance at work (recorded in Candidate's Assessment and Evidence Record or other methods). - Performance in training (recorded in Candidate's Assessment and Evidence Record or other methods). - Simulated exercises (skills/progress test results). - Past achievement/experiences eg letters of endorsement; past certificates. Evidence gathering from the workplace will be the preferred method; however there may be situations where this is inappropriate or the evidence is insufficient. Supplementary evidence will also be required to demonstrate the underpinning knowledge related to the competences in the unit. For detailed guidance on assessment, reference should be made to the publications listed at the end of the Support Notes and to the Assessment Guidance Notes available for the delivery of the Scottish Vocational Qualification of which this module is a component. PROGRESSION This unit forms part of the level II SVQ in Construction: Plant Operations - Bored or Driven Works. Each module is a separate unit and the modules are not necessarily taken in a prescribed order, although there is a logical sequence to the acquisition of the skills and knowledge concerned. To gain the award, the candidates must successfully complete all of the following modules: 15

16 Plant Operations: Servicing and Repairing Plant and Equipment (Servicing and Minor Adjustments) Plant Operations: Providing Dimensional Positioning (Checking and Transferring Reference Marks) Plant Operations: Loading and Unloading Materials and Components (Slinging/Signalling) Plus Option Plant Operations: Providing Specialist Bored or Driven Works (Piling) Or Option Plant Operations: Producing Products From Procured Materials (Piling) RECOGNITION Many SQA NC units are recognised for entry/recruitment purposes. For up-to-date information see the SQA guide 'Recognised and Recommended Groupings'. REFERENCES 1. Guide to unit writing. 2. For a fuller discussion on assessment issues, please refer to SQA's Guide to Assessment. 3. Procedures for special needs statements are set out in SQA's guide 'Students with Special Needs'. 4. Information for centres on SQA's operating procedures is contained in SQA's Guide to Procedures. 5. For details of other SQA publications, please consult SQA's publications list. Copyright SQA 1994 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 16