Unit Code Unit Title
MAS-04 Prepare Mortar and Concrete Mixes

Nominal Hours: 25
Unit Descriptor:
Covers selection, proportioning, mixing, and testing of mortar and concrete for masonry work.

Elements | Performance Criteria

Elements Performance Criteria
1. Select materials 1.1 Identify types and grades of cement, sand, aggregates.
1.2 Select additives as required.
1.3 Ensure materials are clean and suitable.
2. Proportion and mix 2.1 Measure materials accurately.
2.2 Mix mortar and concrete to specified consistency.
2.3 Adjust mix as needed for workability.
3. Test and handle mixes 3.1 Perform slump or consistency tests.
3.2 Transport and store mixes appropriately.
3.3 Clean mixing equipment after use.

Range of Variables

Variables Range
Materials Cement, lime, sand, aggregates, water, plasticizers, retarders.
Mix types Mortar (various ratios), concrete (various grades), specialty mixes.
Mixing methods Manual, mechanical, batching by volume or weight.

Evidence Guide

Area Details
1. Critical aspects of competency Prepares mortar and concrete mixes to specification and tests consistency.
2. Underpinning knowledge Material properties, mix ratios, mixing techniques, testing methods.
3. Underpinning Skills Material selection, measuring, mixing, testing, cleaning.
4. Underpinning attitudes Accuracy, quality focus, cleanliness, responsibility.
5. Resource Implications Mixing equipment, materials, test tools.
6. Methods of Assessment Practical demonstration, questioning, product inspection, supervisor feedback.
7. Context of Assessment Real/simulated site with mixing and testing activities.

Foundation skills

Skills DESCRIPTION
Numeracy Measure materials and calculate mix ratios.
Problem Solving Adjust mix for workability or site conditions.
Planning/Organizing Sequence mixing and testing tasks.

Target Audience

Target Audience Description
Masonry apprentices, workers Individuals preparing mortar and concrete for masonry work.

Recognition of Prior Learning (RPL)

RPL Available Yes

Pre-Requisit

Pre-Requisite None