Construction of Hard Landscaped Surfaces

Overview

Framework:
RQF
Level:
Level 3
Unit No:
L/617/1475
Credits:
8
Guided learning hours:
60 hours

Assessment Guidance

Learning Outcome 1:

The learner will practise transferring information from scale plans and marking out geometric and irregular shapes, levels and gradients working from a datum point and running line.
Learners must also be able to demonstrate that they can establish a suitable sub-base for subsequent work, according to drawing specifications.

Learning Outcome 2:

Learners will evaluate current construction standards and regulations and detail the various sources of information. Industry terminology will be defined, and a variety of materials will be identified.
Potential problems will be explored, and a working plan drawn up to overcome these issues.

Learning Outcome 3:

Learners will construct a range of rigid paved surfaces using materials such as: flag stones or pavers (natural and artificial), concrete, tarmac.
Learners will construct a range of flexible hard surfaces using materials such as: gravels/aggregates, hoggin, bark chip and other loose materials, including edgings.

Learning Outcome 4:

earners will be able to evaluate an area of paving and produce a schedule of works for its maintenance and upkeep. They will perform a range of basic repairs and maintenance tasks.

Aim

The learner will gain an understanding of how to construct an area of paving from setting out to completion and maintenance using a range of materials both rigid and flexible.

Health and safety and legislation for the works will be underpinned throughout this unit.

Unit Learning Outcomes

1.

Be able to set out hard landscaping works

Setting out landscaping
• reading drawings and plans
• use of tape measures
• automatic levelling
• calculation of diagonals
• setting out corner pegs
• checking against drawn information

Setting out vertical controls
• establishing levels from drawings
• location of a datum
• transfer of vertical control point
• setting up profile boards
• calculation of traveller height

• construction of traveller

Assessment Criteria

  • 1.1

    Set out hard landscaping on plan.

  • 1.2

    Set up vertical controls for excavation to reduced level and sub bases.

    (Setting out accurate to within +/- 10mm

    Reduced level accurate to within +/- 20mm)

2.

Understand the processes involved in excavation for landscaping.

Excavation for landscaping
• manufacturers specifications and installation instructions
• structural engineers reports
• building regulations
• planning constraints
• conservation areas


Pavement construction technology
• reduced levels for excavation
• level and compaction of reduced levels
• removal of topsoil layers
• geotextile membranes, to stabilise soil
• sub base layers, spreading of loads
• compaction of subbases
• sand blinding to surface of sub base
• sand/cement bedding layers
• hard landscaping pavement
• jointing and pointing


Excavation issues
• soft spots, removal and back filling
• excessive ground water, barrier and removal
• weed control
• tree roots, tree preservation orders
• ground stabalisation
• obstructions, drainage pipes, communication
• water pipework, gas services, electrical cables
• sloping ground, support
• disposal of excavated materials

Assessment Criteria

  • 2.1

    Explain the construction standards and regulations for hard landscaping.

  • 2.2

    Describe the pavement layers and and their uses.

  • 2.3

    Explain the issues associated with the excavation of ground.

3.

Be able to construct pavements.

Construction of pavements
• construction of a paved surface area to a provided specification and drawing
• completion of observation record by tutor and learner
• measurements for higher order grading

Construction of free draining surfaces
• excavation and installation of edging kerbs
• clearing and laying of flexible surface materials
• completion of observation record by tutor and learner
• measurements for higher order grading

Assessment Criteria

  • 3.1

    Construct rigid hard surfaces to a given specification.

  • 3.2

    Construct free draining surfaces to a given specification.

    Horizontal or laid to falls hard landscaped surfaces have a horizontal tolerance of +/- 10 mm.

4.

Be able to maintain paved surfaces.

Maintaining landscaped surfaces
• landscaping survey on site
• identification of problems
• report writing
• maintenance report
• maintenance schedules produced

Carry out maintenance works
• reference to maintenance schedules or plans
• Coshh assessments if chemicals used
• risk assessment
• barriers to areas
• undertake maintenance activities
• maintenance schedule updated

Assessment Criteria

  • 4.1

    Explain maintenance operations required on paved surfaces.

  • 4.2

    Carry out routine maintenance to paved surfaces.