The alkali–silica reaction (ASR), also commonly known as concrete cancer, is a deleterious internal swelling reaction that occurs over time in concrete...
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pozzolanic reaction. The alkali–silica reaction can be written like the soda lime reaction, by simply substituting carbon dioxide by silica dioxide in...
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following: Alkali–silica reaction (ASR, the most common reaction of this type); Alkali–silicate reaction, and; Alkali–carbonate reaction. The alkali–silica reaction...
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Reinforced concrete (section Alkali silica reaction)
The alkali–silica reaction (ASR) causes localised swelling responsible for tensile stress and cracking. The conditions required for alkali silica reaction...
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affinity for water. This reaction is at the core of the alkali–silica reaction (ASR): 2 NaOH + SiO2 → Na2SiO3 · H2O Following this reaction, a hygroscopic and...
62 KB (7,758 words) - 17:53, 6 November 2024
and organic matter. The alkali-carbonate reaction could therefore also simply hide an alkali-silica or an alkali-silicate reaction. Anyway a chemical coupling...
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Silicate (redirect from Silica polymer)
atmosphere and the global warming caused by this greenhouse gas. Alkali-silica reaction Carbon cycle Carbonate-silicate cycle Ocean acidification Greenwood...
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aluminosilicates. Alkali–aggregate reaction – Expansive chemical reaction damaging concrete (AAR) Alkali–silica reaction – Chemical reaction damaging concrete...
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in the Kieselkalk. Siliceous limestones can be very prone to the Alkali Silica Reaction (ASR) and their use as aggregate is often the cause of premature...
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silica fumes, as byproduct, may be used to produce silicon carbide. Alkali–silica reaction Engineered cementitious composite Energetically modified cement...
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from alkali-silica reaction (ASR). Silica dioxide "Lubricant Excipients". American Pharmaceutical Review. Retrieved 2023-10-05. "Colloidal Silica | R-E-D...
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ancient DNA sequences Acute stress reaction to traumatic event Adult sex ratio of males to females Alkali–silica reaction, affecting sensitive aggregates...
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within 24 hours. It also reduces the deterioration of concrete by Alkali Silica Reaction (ASR), particularly useful when using recycled crushed glass or...
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of C-S-H phases: Alkali–silica reaction – Chemical reaction damaging concrete Alkali–aggregate reaction – Expansive chemical reaction damaging concrete...
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from freeze/thaw.[citation needed] Other forms of damage include alkali-silica reaction (ASR), chemical intrusion, and corrosion of steel reinforcements...
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Anderlecht. In 1977, the main stand was completely rebuilt, but an alkali–silica reaction ten years later caused the concrete to crack. Chairman Jacques Ruts...
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restoration works took place, because the concrete had suffered from alkali-silica reaction. Monte Grisa Temple on www.carsokras.eu Antonio Santin in the German...
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Pozzolanic activity (redirect from Pozzolanic reaction)
category. Aerated autoclaved concrete Alkali-aggregate reaction Alkali-carbonate reaction Alkali-silica reaction Calcium silicate hydrate (C-S-H) Calthemite...
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Silicon dioxide (redirect from Silica Mineral)
known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. In many parts of the world, silica is the major...
66 KB (6,934 words) - 20:54, 11 November 2024
slags (GGBFS) activated by alkali. It could also form in CEM III cement-based concrete exposed to alkali-silica reaction (ASR) at elevated temperature...
13 KB (1,120 words) - 20:57, 18 January 2024
other concern is that certain cherts undergo an alkali-silica reaction with high-alkali cements. This reaction leads to cracking and expansion of concrete...
35 KB (4,216 words) - 13:16, 22 October 2024
steel reinforcements. Alkali–silica reaction (ASR), also known as alkali-aggregate reaction (AAR), when reactive amorphous silica aggregates exposed to...
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under oil to prevent reaction with air, and are found naturally only in salts and never as the free elements. Caesium, the fifth alkali metal, is the most...
214 KB (23,516 words) - 16:21, 14 November 2024
quality of the concrete turned out to have a high alkali content and led to an alkali-silica reaction (ASR), which created cracks in the concrete and sapped...
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in normal mass concrete". Hoover Dam concrete is not subject to alkali–silica reaction (ASR), as the Hoover Dam builders happened to use nonreactive aggregate...
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Feldspar (redirect from Alkali feldspar)
defines the continuous Bowen's reaction series. K-feldspar is the final feldspar to crystallize from the magma. Alkali feldspars are grouped into two...
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reactions in concrete, leading to damaging expansive phenomena. The most common are those containing reactive silica, that can react with the alkalis...
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Carbonatation (category Inorganic reactions)
evaporation. The carbonatation reaction takes place during lime softening (Clark's process) in water softening. Alkali–silica reaction Concrete degradation Phosphatation...
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Aggregate base Aggregate industry in the United States Alkali-aggregate reaction Alkali–silica reaction Concrete Crushed stone Dimension stone – stone recycling...
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required complete reconstruction in 2011, following the discovery of alkali-silica reaction (ASR) in its Portland cement concrete. Since the runway was the...
26 KB (1,417 words) - 23:37, 19 November 2024