Charring ablators
Ablative materials in design and construction, are materials that are generally resistant to high temperatures in one of three ways and used for thermal protection. Charring ablators, partially burn and blacken, creating a greater surface thermal resistance.
Charring ablation describes where the surface chemical reaction (decomposition at high temperature) gradually consumes the char layer of the material, so is completely decomposed. For example in a char rating, which measures the depth of char of a timber being burnt, divided by the time period for this to occur, where a lower char rate indicates a slower rate of burn.
In doing this ablative materials may pyrolyse mitigating a heat load, so in effect they decompose or change as a result of the heat being applied. These types of materials are often carbon related composites such as Teflon.
Two other types of ablative materials are subliming ablators and Intumescent ablators.
[edit] Related articles on Designing Buildings
Featured articles and news
A must-attend event for the architecture industry.
Caroline Gumble to step down as CIOB CEO in 2025
After transformative tenure take on a leadership role within the engineering sector.
RIDDOR and the provisional statistics for 2023 / 2024
Work related deaths; over 50 percent from constructuon and 50 percent recorded as fall from height.
Solar PV company fined for health and safety failure
Work at height not properly planned and failure to take suitable steps to prevent a fall.
The term value when assessing the viability of developments
Consultation on the compulsory purchase process, compensation reforms and potential removal of hope value.
Trees are part of the history of how places have developed.
The increasing costs of repair and remediation
Highlighted by regulator of social housing, as acceleration plan continues.
Free topic guide on mould in buildings
The new TG 26/2024 published by BSRIA.
Greater control for LAs over private rental selective licensing
A brief explanation of changes with the NRLA response.
Practice costs for architectural technologists
Salary standards and working out what you’re worth.
The Health and Safety Executive at 50
And over 200 years of Operational Safety and Health.
Thermal imaging surveys a brief intro
Thermal Imaging of Buildings; a pocket guide BG 72/2017.
Internally insulating a historical building
An experimental DIY approach using mineral thermal lime plaster.
Tree species selection for green infrastructure: A guide for specifiers.
The future of the Grenfell Tower site
Principles, promises, recommendations and a decision expected in February 2025.
Comments
[edit] o make a comment about this article, click 'Add a comment' above. Separate your comments from any existing comments by inserting a horizontal line.