ConcreteDegradationThe incorporation of recycled aggregate (RA) in structural concrete requires deep knowledge of this material's potential and limitations by assessing its effect on the concrete properties. Alkali-silica reaction (ASR) is one of the most concerning degradation agents in concrete ...
SIS-CEN/TR 16349:2012避免碱 硅反应(ASR)对混凝土造成损害的规范框架 Framework for a specification on the avoidance of a damaging Alkali-Silica Reaction (ASR) in concrete首页 标准 SIS-CEN/TR 16349:2012 发布历史 SIS-CEN/TR 16349:2012 预览[下载] 发布历史SIS-CEN/TR 16349:2012...
Alkali-silica reaction (ASR) in concrete can induce degradation in its mechanical properties, leading to compromised serviceability and even loss in load capacity of concrete structures. Compared to other properties, ASR often affects the modulus of elasticity more significantly. Several empirical models...
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concentrationofsulfateerosionconcretespecimen,thecontentofAFtintheITZgrowsgreatly,manycracksexistintheITZand thestructurebecomesloose. Keywords:caucrete:sodiumsulfate:AAR;expansionrate;dynamicelasticmodulus:ITZ 碱骨料反应(ASR)是混凝土耐久性破坏最主要的因素之 ...
Define ASR. ASR synonyms, ASR pronunciation, ASR translation, English dictionary definition of ASR. abbr. 1. air-sea rescue 2. automatic speech recognition American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Ho
Alkali silica reaction (ASR) occurs due to chemical reaction between hydroxyl ions in the pore water within the concrete matrix and certain forms of silica. This reaction could lead to strength loss, cracking, volume expansion and potentially failure of the structure. This manuscript reports findings...
Cracks and damage to the part of the concrete structure are the results of the formation of this expansive gel. There are several ways to minimize this reaction, out of which Lithium Nitrate compound is believed to reduce the reaction between alkalis (present in the cement) and silica (...
This chapter Non destructive evaluationdeals with the structural monitoring of concrete structures which are affected by alkali-silica reactions (ASR). Its purpose is to present an overview of the main proven monitoring and testing techniques that are av
Recently, the structure of the crystalline alkali-silica reaction (ASR) product formed in affected concrete has been identified based on μ-XRD measurements. However, the data were obtained from a single aggregate. In this study, Raman microscopy is applied on crystalline ASR products formed in se...