Elements and Performance Criteria

Arches may be designed for walls of:

regular gauge

random regular

random rubble

Joints in stone arches may be:

dry

cement mortar

Quality Assurance requirements may include:

workplace operations and procedures

quality of materials

control of handling procedures

use and maintenance of equipment

attention to specifications of work

OH&S requirements to be in accordance with State/Territory legislation and regulations and may include:

workplace environment and safety

protective clothing and equipment

use of tools and equipment

handling of materials

working platforms and scaffolding

Personal protective equipment may include:

boots

safety glasses/goggles

ear plugs/muffs

dust masks/respirators

gloves

leather apron

Tools plant and equipment may include but are not limited to:

measuring tape/rule

hammer

spirit level

square

chisel

hand saws

power saws

masonry saws

straight edge

power leads

concrete mixer

shovels

string line

trowels

mortar board

gin poles

shear legs

Critical Aspects of Evidence
It is essential that competence is observed in the following aspects:
demonstrate compliance with Occupational Health and Safety regulations applicable to workplace operations
indicate compliance with organisational policies and procedures
select and use tools and equipment to carry out construction process
apply organisational quality procedures and process within the context of constructing stone arches to walls or columns
adopt and use safe and effective procedures to set out and set up arch centre to specification
give particular attention to support of centre and method of lowering when arch complete
identify and where applicable, mark each cut stone for arch location
use safe and effective procedures to handle and place each stone
form arch to specification and, where applicable, apply mortar to joints
identify typical faults and problems that occur and necessary action taken to rectify
interactively communicate with others to ensure safe and effective workplace operations
complete arch construction including finish to specifications

Pre-requisite Relationship of Units
Pre-requisites for this unit are:
BCG1006A Use small plant and equipment
BCG1007A Erect and dismantle restricted height scaffolding
BCG1008A Use simple levelling devices

Underpinning Knowledge and Skills
A knowledge of:
workplace and equipment safety requirements including relevant statutory regulations, codes and standards
drawings and specifications
design of arches
stone construction of arches
methods of constructing arches
mortar mix composition
range of mortar additives including plasticiser/s and/or their application
Building Code of Australia and AS3700 Masonry in Buildings
types of stone and characteristics
cutting of stone
measuring and levelling
plant, tools and equipment
scaffolding and lifting equipment
worksite communications
The ability to:
work safely
organise work
read and interpret drawings
use plant, tools and equipment
measure and set out work
lay stone
handle materials safely
communicate effectively

Resource Implications
The following resources should be provided
site location for proposed activity
materials relevant to proposed activity
hand/power tools, plant and equipment appropriate to construction processes
drawings and specifications relevant to proposed activity
Scaffolding appropriate to construction processes

Method of Assessment
Competency should be assessed through direct observation of application to tasks and questions related to underpinning knowledge.
Competency should be assessed under general guidance checking at various stages of the process and at completion of the activity performance criteria and specifications.

Context of Assessment
Competency may be assessed in the workplace or simulated workplace setting.
Assessment shall be while tasks are undertaken either individually or as part of a team under limited supervision.

Communicating ideas and information
(2)

Collecting analysing and organising information
(2)

Planning and organising activities
(2)

Working with others and in teams
(1)

Using mathematical ideas and techniques
(3)

Solving problems
(3)

Using technology
(2)