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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.
Watch: Experts explain why RAAC is more dangerous than normal concrete Saturday 2 September 2023 09:50 , Matt Mathers ‘Possible’ more schools will be affected - council leader
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 ...
The 2023 United Kingdom reinforced autoclaved aerated concrete crisis relates to increased safety concerns over reinforced autoclaved aerated concrete, commonly used historically in roofing and wall construction within the public sector, having gained popularity in the mid-1950s as a cheaper and more lightweight alternative to conventional reinforced concrete.
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]
A person’s immune system is able to fight off many diseases, but it tends to be ineffective against cancer because of a mechanism called immune tolerance. Scientists find dangerous parasite that ...
Health effects of pesticides may be acute or delayed in those who are exposed. [1] Acute effects can include pesticide poisoning, which may be a medical emergency. [2] Strong evidence exists for other, long-term negative health outcomes from pesticide exposure including birth defects, fetal death, [3] neurodevelopmental disorder, [4] cancer, and neurologic illness including Parkinson's disease ...
“Two servings of fish per week after diagnosis was associated with a 17% lower risk of prostate cancer recurrence,” wrote the Prostate 8 team, citing a study in the journal Cancer Causes and ...