Concrete Expansion Induced by Alkali–Silica Reaction in a Small Arch Dam
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DOI: 10.1007/s40999-016-0127-x
Abstract: Alkali–aggregate reaction in concrete structures consists of a chemically deleterious reaction between alkalis liberated during the cement hydration and reactive minerals present in the aggregates like silica, silicate or carbonate. The process leads to the… read more here.
Keywords: expansion; dam; concrete expansion; reaction ... See more keywords
Structural characterization of alkali-silica reaction gel: An x-ray absorption fine structure study
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DOI: 10.1016/j.cemconres.2019.05.019
Abstract: Abstract This paper sets out to acquire information on the atomic structure of the alkali-silica reaction gel by using the x-ray absorption fine structure (XAFS) technique to improve the understanding of the mechanism of expansion.… read more here.
Keywords: alkali silica; gel; structure; reaction gel ... See more keywords
Effect of alkali-silica reaction on the fracture properties of confined concrete
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DOI: 10.1016/j.conbuildmat.2019.117641
Abstract: Abstract Alkali-silica reaction (ASR), which was recently discovered in nuclear power plant structures commonly without shear reinforcement, has previously been shown to induce anisotropic expansion in confined concrete. The fracture properties (strength, stiffness, and specific… read more here.
Keywords: fracture; asr induced; fracture properties; silica reaction ... See more keywords
Non-destructive non-invasive assessment of the development of alkali-silica reaction in concrete by spectral induced polarization: Evaluation of the complex electrical properties
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DOI: 10.1016/j.conbuildmat.2019.117719
Abstract: Abstract The distress caused by alkali-silica reaction (ASR) to concrete structures can occur long time after the reaction has been triggered. We propose to use spectral induced polarization (SIP) as a non-destructive method for early… read more here.
Keywords: polarization; time; reaction; silica reaction ... See more keywords
Relation between mechanical properties of concrete and alkali-silica reaction (ASR); a review
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DOI: 10.1016/j.conbuildmat.2020.119567
Abstract: Abstract Alkali-Silica Reaction (ASR), as a harmful internal reaction in concrete, produces deleterious gel, which occurs due to the reaction between the reactive silica in the aggregate and the alkalis of the pore solution. Because… read more here.
Keywords: asr; mechanical properties; silica reaction; alkali silica ... See more keywords
Microscopic assessment of recycled concrete aggregate (RCA) mixtures affected by alkali-silica reaction (ASR)
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DOI: 10.1016/j.conbuildmat.2020.121250
Abstract: Abstract Recycled concrete aggregates (RCA) are deemed an efficient approach to reduce waste yet, the presence of previous alkali-silica reaction (ASR) causes reservations towards its use in new construction. In this work, RCA specimens are… read more here.
Keywords: asr; reaction asr; rca; silica reaction ... See more keywords
Alkali-silica reaction and strength of concrete with pretreated glass particles as fine aggregates
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DOI: 10.1016/j.conbuildmat.2020.121809
Abstract: Abstract In this study, the strength and alkali-silica reaction (ASR) of concrete by incorporating pretreated soda-lime glass particles as fine aggregates were investigated. The glass aggregates were pretreated with three different solutions: Ca(OH)2, NaOH, and a… read more here.
Keywords: strength; glass particles; glass; silica reaction ... See more keywords
Evaluation of alkali–silica reaction damage in concrete using linear and nonlinear resonance techniques
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DOI: 10.1016/j.conbuildmat.2021.124538
Abstract: Abstract In this study, the initiation and development of alkali–silica reaction (ASR) in concrete prisms containing reactive coarse (RCA) and reactive fine (RFA) aggregates were monitored over one year using linear and nonlinear resonance techniques.… read more here.
Keywords: damage; nonlinear resonance; alkali silica; resonance ... See more keywords
Alkali–Silica Reaction Resistance of Cementitious Material Containing CaCl2-Blended Acrylic Polymer Emulsion
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DOI: 10.1061/(asce)mt.1943-5533.0003049
Abstract: AbstractThis study investigated the effect of CaCl2-blended acrylic polymer emulsion (CP) at 0%, 0.5%, 1.0%, and 1.5% by weight of cement on the degradation of alkali–silica reaction (ASR) suscepti... read more here.
Keywords: polymer emulsion; acrylic polymer; blended acrylic; silica reaction ... See more keywords
Eco-Friendly Mitigation of Alkali-Silica Reaction in Concrete Using Waste-Marble Powder
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DOI: 10.1061/(asce)mt.1943-5533.0003312
Abstract: AbstractWith several countries halting coal combustion in favor of clean and renewable energy production, there is need for alternative mineral additions that can substitute for fly ash in concrete... read more here.
Keywords: mitigation alkali; friendly mitigation; eco friendly; reaction concrete ... See more keywords
The presence of ettringite in concrete affected by alkali‐silica reaction and its potential use as recycled aggregate
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DOI: 10.1111/jmi.13093
Abstract: Samples were collected from a 20‐year‐old concrete suffering alkali‐silica reaction for examination using scanning electron microscopy. The concrete was also exposed to cycles of freezing and thawing in service. The old concrete was processed and… read more here.
Keywords: silica reaction; presence; reaction; microscopy ... See more keywords