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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.
Alkali–silica reaction (ASR), also known as alkali-aggregate reaction (AAR), when reactive amorphous silica aggregates exposed to alkaline conditions (high pH) swell inside the concrete matrix leading to the development of a network of cracks. It may also refer to:
But concrete cancer — the formal term is alkali-silica reaction — was a key issue the team raised more than a year ago in announcing the organization’s decision to pursue construction of a ...
It is also used in ceramics and some Portland cement formulations, where it is also used to suppress ASR (concrete cancer). [16] Lithium hydroxide (isotopically enriched in lithium-7) is used to alkalize the reactor coolant in pressurized water reactors for corrosion control. [17] It is good radiation protection against free neutrons.
The “Save Kauffman (Royals) Stadium” page grew from under 1,000 members to 6,700 since the Royals unveiled renderings for a new ballpark.
Related: 5-Year-Old Girl Now Cancer-Free After Dentist Noticed Tumor in Her Jaw During Routine Visit Twelve of the patients died between 2 months and 7 years after the infusion, “all due to ...
Concrete carbonation can be visually revealed by applying a phenolphthalein solution over the fresh surface of a concrete samples (concrete core, prism, freshly fractured bar). Phenolphthalein is a pH indicator , whose color turns from colorless at pH < 8.5 to pink-fuchsia at pH > 9.5.
But people who took 2,000 international units (IU) of vitamin D and did 30 minutes of strength training three times a week (in addition to the 1 gram of omega-3 fatty acids) saw an even greater ...