NZQA registered unit standard / 28679 version 1
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Title / Demonstrate knowledge of bituminous surfacings and their uses
Level / 4 / Credits / 6
Purpose / People credited with this unit standard are able to demonstrate knowledge of bituminous surfacings and their uses.
Classification / Infrastructure Works > Generic Bituminous Surfacing
Available grade / Achieved

Explanatory notes

1 Competence in this unit standard requires knowledge of the current editions of the following references:

New Zealand Transport Agency specifications available at http://www.nzta.govt.nz/resources/:

NZTA M1: Specification for Roading Bitumens;

NZTA M6: Specification for Sealing Chip;

NZTA M6 Notes: Notes on Specification for Sealing Chip;

NZTA M10: Specification for Dense Graded and Stone Mastic Asphalts

NZTA M13: Specification for Adhesion Agents;

NZTA M13 Notes: Notes to Specification for Adhesion Agents;

NZTA P3: Specification for First Coat Sealing;

NZTA P4: Specification for Resealing;

NZTA P11: Specification for Open Graded Porous Asphalt;

NZTA P11 Notes: Notes to the Specification for Open Graded Porous Asphalt;

NZTA P17: Performance Based Specification for Reseals;

NZTA P23: Performance Based Specification for Hotmix Asphalt Wearing Course Surfacing;

Chipsealing in New Zealand, New Zealand Transport Agency, available at http://www.nzta.govt.nz/resources/chipsealing-new-zealand-manual/.

2 Definitions

OGPA means open graded porous asphalt.

SMA means stone mastic asphalt.

UTA means ultra thin asphalt.

Outcomes and evidence requirements

Outcome 1

Demonstrate knowledge of bituminous surfacings and their uses.

Evidence requirements

1.1 Types of bituminous mixes are defined, and where and why they are used is explained in accordance with NZTA specifications.

Range types – dense graded, SMA, OGPA, UTA, tack coat;

binders for these mixes.

1.2 Types of chipseals are defined and where and why they are used is explained in accordance with NZTA specifications.

Range types – membrane seals, first coat, reseal, crack seals, texturising, void fills;

binders for these seals.

1.3 Types of slurry and micro-surfacings are defined and where and why they are used is explained in accordance with NZTA specifications.

Range types –slurry types 1 to 4, emulsified, sand, cape seal, micro-surfacing;

binders for these products;

seal used in cape seal and binder design.

Planned review date / 31 December 2019

Status information and last date for assessment for superseded versions

Process / Version / Date / Last Date for Assessment /
Registration / 1 / 19 February 2015 / N/A
Consent and Moderation Requirements (CMR) reference / 0101

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 (CMRs). 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 Infrastructure ITO if you wish to suggest changes to the content of this unit standard.

Infrastructure ITO
SSB Code 101813 / Ó New Zealand Qualifications Authority 2015