Calcium sulfate screeds
Overview
Duration
2 days of 6 learning hours per day.
Purpose/scope
The purpose of this standard is to provide the delegates with knowledge and skills relating to calcium sulfate screeds.
Scope:
- introduction to calcium sulfate screeds
- interpretation of contract information
- personal protective equipment (PPE)
- screed selection
- equipment & delivery methods
- laying methods
- coverage rates
- test methods
- screed repairs
- waste disposal & cleaning of equipment.
Occupational relevance
Training delivered against this standard would be relevant to the following occupational group(s):
- operative and craft.
Delegates pre-requisites
There are no delegate pre-requisites as part of this standard.
Instruction/supervision
As a minimum, course trainers must be able to demonstrate that, in relation to this standard, they have:
- an award in education and training (or equivalent, as per requirements for approved training organisations)
- successfully completed training to this standard
- at least 2 years relevant industrial experience
- a verifiable CV.
Delivery
Delivery may be in an on or off the job environment.
All materials and equipment must be of a suitable quality and quantity for delegates to achieve learning outcomes and must comply with relevant legislation.
The class size and delegate/trainer ratio must allow training to be delivered in a safe manner and enable delegates to achieve the learning outcomes.
The following delivery methods may be used in the delivery of this standard:
- classroom / practical learning
- e-learning
- a blend of classroom and e-learning.
This standard is considered to contain 51% or more practical training.
This standard is considered to be set at an intermediate level.
Assessment
For the successful completion of training, delegates must complete an end of course practical assessment or knowledge test that measures all learning outcomes and has a pass or fail criteria.
Where this training is assessed using multiple-choice questions, a minimum of 10 questions must be asked and delegates are required to achieve an overall pass mark of at least 80%.
Quality assurance
Assured
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.
Renewal
Refresher every 3 years
Buffer/grace period
3 months
Classification
Recommended Refresher
Approval date
May 2021
Review cycle
On request or 3 years from approval date.
Learning outcomes
The delegate will be able to: |
Additional guidance to support learning outcome |
---|---|
interpret and understand guidance and information relating to the work specification |
Contract information:
Product/system information:
Legislation:
legal obligation to protect yourself, the area and members of the public. |
select and use appropriate PPE for the work |
Including: eye protection, head protection, safety footwear, gloves, ear defenders, respiratory protective equipment, high visibility clothing |
explain the legal obligations to protect themselves, the area and members of the public |
|
explain the composition of calcium sulfate screeds |
Components of a calcium sulfate screed (anhydrite, aggregates, water & admixtures) |
describe the benefits and factors affecting the choice of calcium sulfate screed |
Selection factors:
Benefits:
|
outline screed delivery and installation methods |
|
recognise the importance of subfloor quality and be aware of common preparation methods including bonded, unbonded and floating construction |
Including but not limited to:
Primers and bonding slurries (including polymer and epoxy primers BS8204:7:2003 |
describe the importance of priming the substrate |
|
describe methods used to install calcium sulfate screeds |
|
explain curing and drying requirements for newly installed screeds |
|
identify common screed repair methods |
|
describe factors to be considered when planning an installation |
Layout including:
|
mix calcium sulfate screed (bagged) using appropriate mixing equipment under supervision |
|
apply calcium sulfate screed using appropriate equipment (pump) and method of application to achieve required thickness, levels and surface finish under supervision |
|
describe inspection and testing methods during and after application |
|
explain how to achieve joint and edge details |
|
protect floor area following installation |
|
clean tools and equipment and understand the safe use of solvents and other cleaning materials in line with health & safety guidelines |
|
dispose of waste in a responsible manner |
|
Additional information about this standard
Industry guidance:
- Proprietary Screed Manufacturers Guidance
- BS 8204:7:2003 – Code of practice for Pumpable Self Smoothing Screeds
- BS8204:1:2003 – Code of practice for Screeds, Bases and In-situ Floors
- BS EN 13454 - Binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate
- BS EN 13813 - Screed material and floor screeds — Screed material — Properties and requirements
- FeRFA Guide to the Specification & Application of Screeds, The Resin Flooring Association
www.ferfa.org.uk/wp-content/uploads/2018/05/SpecGuideCPD.pdf
The Resin Flooring Association (FeRFA) website
Health and Safety Executive (HSE) guidance
Control of Substances Hazardous to Health (COSHH)
Chemical safety data sheets
Legislation:
COSHH
www.hse.gov.uk/coshh
HSWA
www.hse.gov.uk/legislation/hswa.htm
PUWER
www.hse.gov.uk/work-equipment-machinery/puwer.htm
RIDDOR
www.hse.gov.uk/riddor
Related standards
Flowable screeds
Thermal and Acoustic Insulation and Underfloor Heating
Prepare Background Surfaces to Receive Screed Flooring
Screed Flooring and Equipment Introduction
Traditional Screeds
Work Practice and Project Planning for Screed Flooring
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