Concrete aggregates awareness

This training standard will enable trainees to develop their knowledge of aggregates, how and when they’re used, and the practical impacts and consequences of using different aggregates.

CITB has developed this standard in discussion with industry


Minimum 1 day of 6 learning hours


This training standard will enable trainees to develop their knowledge of aggregates, how and when they’re used, and the practical impacts and consequences of using different aggregates.  


  • different types of aggregates
  • impact on value
  • quality dimensions
  • environmental impacts
  • sustainability
  • do's and don'ts.

Occupational relevance

Training delivered against this standard would be relevant to the following occupational groups:

  • operative and craft
  • supervision
  • management and leadership.

Candidate pre-requisites

There are no candidate pre-requisites as part of this standard. However experience of using and testing concrete would be beneficial.


As a minimum, course instructors must be able to demonstrate that, in relation to this standard, they have:

  • a train the trainer or instructional techniques course certificate
  • successfully completed training to this standard
  • at least 2 years relevant industrial experience
  • a verifiable CV.


Delivery may be in an on or off the job environment.

All materials and equipment must be of a suitable quality and quantity for candidates to achieve learning outcomes, and must comply with relevant legislation.

The class size and candidate/instructor ratio must allow training to be delivered in a safe manner and enable candidates to achieve the learning outcomes.

The following delivery methods may be used in the delivery of this standard:

  • classroom
  • a blend of classroom and e-learning

This standard is considered to contain 51% or more theoretical learning.


Methods of assessment considered appropriate for training delivered against this standard are: For the successful completion of training, the trainer must be satisfied that the candidate has achieved all of the learning outcomes. 

Quality assurance

Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard.

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the training standard.

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk based analysis. They will also be visited annually by the CITB quality assurance team.


Non-mandatory refresher every 5 years.

Approval date

November 2018

Review cycle

Either on request or 3 years from approval date.

Learning outcomes

The candidate will be able to: Additional guidance to support learning outcome
Describe different types of aggregates, their applications and limitations

Explain how the use of aggregates can directly and indirectly impact on construction costs

Describe quality dimensions

The mix – proportions
moisture control
exposed aggregate concrete

List the environmental impacts of using aggregates

Describe sustainability aspects of aggregate extraction and usage

resource depletion
health & safety

List some of the do’s and don’ts

DO use aggregate that's in compliance with ASTM C 33, "Standard specifications for concrete aggregates." 

DON'T exceed limits for deleterious material content in fine and coarse aggregates. Some specifications may require more stringent limitations.

DO monitor moisture contents of coarse and fine aggregates on a regular basis to promote batch-to-batch consistency and uniformity.

DO make sure stockpiles are properly managed. 

Additional information about this standard

Health & Safety Executive (HSE) guides:

Health & Safety at Work etc Act 1974

Health and safety in construction

Personal protective equipment a brief guide







Manual handling


Hand-arm vibration



  • Health and Safety at Work etc Act (HSWA) 1974
  • The Work at Height Regulations (WHR) 2005
  • Work at Height (Amended) 2007
  • Personal Protection Equipment (PPE) Regulations 2002
  • Personal Protection Equipment (PPE) at Work Regulations 1992
  • Provision and Use of Work Equipment Regulations (PUWER) (1998 UK 1999 NI)
  • Control of Substances Hazardous to Health Regulations (COSHH )2002
  • Lifting Operations and Lifting Equipment Regulations (LOLER) 1998
  • Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR ) 1995
  • Construction (Design and Management) Regulations (CDM) 2015
  • Construction (Health, Safety and Welfare) Regulations 1996
  • Manual Handling Operations Regulations 1992 as amended 2002
  • Control of Noise at Work Regulations 2005
  • Control of Vibration at Work Regulations 2005.