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عنوان فارسی مقاله:
تاثیر بصورت کربنات درامدن در تشکیل اکسی کلرید کلسیم
عنوان انگلیسی مقاله:
The influence of carbonation on the formation of calcium oxychloride
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Historically, concrete pavements have been designed to provide an initial service life of 30 years. However, damage and degradation in concrete pavements have recently been observed to occur well before the expected service life is reached [1]. This is increasingly problematic as transportation agencies are requesting pavements with a longer initial service life (40e50 years or more) [2]. In the Midwestern region of the US jointed plain concrete pavements (JPCP) have shown premature damage at the joints [3]. It has been proposed that this damage can occur due to either 1) increased saturation levels at the joints or 2) a chemical reaction that occurs between the matrix and the deicing salts that result in an expansive product [1,4,5]. It should be noted that several potential sources of damage have historically described damage due to the presence of deicing salts including: 1) scaling of the concrete surface [6e9] or 2) crystallization of the salt in the pores [10e12]. Recently however it has been observed that a phase transformation/reaction can occur between the calcium hydroxide (Ca(OH)2) in the matrix of the concrete pavement and the calcium chloride (CaCl2) in the deicing salt [4,13e16]. The product of this phase transformation/reaction is calcium oxychloride and is described by equation (1).
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کلمات کلیدی:
Calcium oxide - Wikipedia https://en.wikipedia.org/wiki/Calcium_oxide Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature. Preparation · Usage · Safety · References Calcium hypochlorite - Wikipedia https://en.wikipedia.org/wiki/Calcium_hypochlorite Jump to Production - As a mixture with lime and calcium chloride, it is marketed as chlorine powder or bleach powder for water treatment and as a bleaching agent. This compound is relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). It is a white solid, although commercial samples appear yellow. Chemical formula: Ca(OCl)2 Solubility: reacts in alcohol Solubility in water: 21 g/100 mL, reacts Other anions: Calcium chloride [PDF]Download Download PDF - RILEM Technical Letters https://letters.rilem.net/index.php/rilem/article/download/7/10/ by P Suraneni - 2016 - Cited by 3 - Related articles May 29, 2016 - slag, can reduce calcium oxychloride formation by reducing the amount of calcium hydroxide. Complexities in the determination of reactivity of ... Calcium oxychloride formation in pastes containing supplementary ... https://letters.rilem.net/index.php/rilem/article/view/7 by P Suraneni - 2016 - Cited by 3 - Related articles Calcium oxychloride formation in pastes containing supplementary cementitious materials: Thoughts on the role of cement and supplementary cementitious ... Bleaching Powder (CaOCl - Gradeup gradestack.com/CBSE-Class.../Bleaching-Powder...-/15024-2998-4550-study-wtw Bleaching Powder (CaOCl2) Bleaching powder is calcium oxychloride. The chemical ... gas (see Figure). It has also an outlet for the powder formed to come out. Calcium oxychloride formation in pastes containing ... - ResearchGate https://www.researchgate.net/.../303659169_Calcium_oxychloride_formation_in_pastes... May 30, 2016 - Official Full-Text Publication: Calcium oxychloride formation in pastes containing supplementary cementitious materials: Thoughts on the role of ... Calcium Oxide | Properties Of Calcium Carbonate,Preparation Of ... byjus.com/chemistry/calcium-oxide-and-calcium-carbonate/ Dec 21, 2015 - Study the preparation, uses and properties of Calcium Oxide and ... The products formed due to the reaction are burnt lime and carbon dioxide. calcium oxide - the NIST WebBook webbook.nist.gov/cgi/inchi?ID=C1305788&Mask=2 calcium oxide ... This structure is also available as a 2d Mol file; Other names: Calcium .... ΔfH°solid, Enthalpy of formation of solid at standard conditions ... Searches related to formation of calcium oxychloride calcium oxide and water calcium oxide formula calcium oxide uses calcium dioxide calcium hypochlorite uses calcium oxide solubility calcium oxide + water word equation calcium dioxide formula
