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According to ILFI, the list is composed of materials that should be phased out of production due to health concerns. The list is now updated annually. [1] The 2024 LBC red list has over twelve thousand items each identified with a CAS Registry Number. [2] This list includes the following chemical groups: [1] Alkylphenols
The alkali–silica reaction (ASR), also commonly known as concrete cancer, [3] is a deleterious internal swelling reaction that occurs over time in concrete between the highly alkaline cement paste and the reactive amorphous (i.e., non-crystalline) silica found in many common aggregates, given sufficient moisture.
Concrete cancer may refer to: Rebar corrosion and spalling of the concrete cover above rebar caused by the rust expansion and accelerated by chloride attack and ...
Concrete dust released by building demolition and natural disasters can be a major source of dangerous air pollution. The presence of some substances in concrete, including useful and unwanted additives, can cause health concerns due to toxicity and (usually naturally occurring) radioactivity. [4]
"For people wanting to act on this information, I suggest they talk to their health care providers about what steps they may want to take to help prevent and screen for cancer." The study had some ...
On 19 October, the UK government published an updated list of 214 schools and colleges in England affected by reinforced autoclaved aerated concrete. [50] This included a number in the East of England. [51] Three more schools in Surrey were added to the list. [52] RAAC was discovered in a further 18 hospitals. [53]
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A fairly well-defined reaction front can often be observed in thin sections; ahead of the front the concrete is normal, or near normal. Behind the reaction front, the composition and the microstructure of concrete are modified. These changes may vary in type or severity but commonly include: Extensive cracking; Expansion