NZQA registered unit standard
18348 version 4
Page 1 of 3
Title
Demonstrate knowledge of precast and pre-stressed concrete
systems
Level
5
Credits
12
Purpose
People credited with this unit standard are able to describe the
applications and production of precast products, precast
components and cladding, and pre-stressed concrete
production.
Classification
Concrete > Concrete Technology
Available grade
Achieved
Explanatory notes
Legislation and publications relevant to this unit standard include:
Health and Safety in Employment Act 1992;
NZS 3109:1997 Concrete construction, available from Standards New Zealand
(http://www.standards.co.nz).
Outcomes and evidence requirements
Outcome 1
Describe the applications and production of precast products.
Evidence requirements
1.1
The applications of precast concrete products are described in terms of type.
Range
types include but are not limited to – blocks, bricks, floor tiles, roof
tiles, paving flags, kerbs and edgings, block paving, lighting
columns, sewer and water pipes, manhole rings, piles, sleepers.
1.2
The operations and methods used in precast product manufacture are
described in terms of applications and advantages of each method.
1.3
The curing methods used for precast products are described in terms of industry
requirements.
1.4
The production requirements for precast concrete product manufacture are
identified in terms of aggregate storage, batching, mixing, handling equipment
and making moulds.
1.5
Fibrous reinforcing materials are described in terms of types and application.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
18348 version 4
Page 2 of 3
Outcome 2
Describe precast components and cladding.
Evidence requirements
2.1
The applications of precast components and cladding are described in terms of
type.
Range
types include but are not limited to – structural units,
structural/visual units, non-structural cladding panels.
2.2
The operations and methods used in the manufacture of precast concrete
elements and cladding are described in terms of applications and advantages of
each method.
2.3
The curing methods used for precast elements are described in terms of
industry requirements.
2.4
The production requirements for precast concrete production are identified in
terms of aggregate storage, batches, mixing, and handling equipment.
2.5
Methods of mould making are described in terms of materials used and factors
affecting dimensional accuracy.
2.6
Methods for fixing and fastening precast units are described in terms of
materials and components, locating techniques, in situ concrete, and erecting
columns, beams, slabs, cladding and other units.
2.7
Procedure for testing precast concrete units is identified in terms of industry
requirements.
Outcome 3
Describe pre-stressed concrete production.
Evidence requirements
3.1
The grades of concrete for pre-stressed concrete are identified in terms of
tensile strengths of steel.
3.2
The tensile properties of different types of pre-stressing tendon are described in
terms of reinforcing steel.
3.3
Methods of pre-stressing concrete are described in terms of pre-tensioning,
post-tensioning and grouting.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Planned review date
18348 version 4
Page 3 of 3
31 December 2013
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
23 May 2001
N/A
Revision
2
16 July 2004
N/A
Rollover and
Revision
3
25 January 2008
N/A
Rollover and
Revision
4
17 November 2011
N/A
Consent and Moderation Requirements (CMR) reference
0048
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Building and Construction Industry Training Organisation
national.office@bcito.org.nz if you wish to suggest changes to the content of this unit
standard.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016