Alkali-aggregate reaction
Preventing concrete deterioration due to alkali-aggregate reaction
... to Alkali- Aggregate Reaction Relatively equi-dimensional pattern cracking like that shown in Figures 1 and 2 is characteristic of non-reinforced or lightly reinforced concrete affected by ...
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Alkali - aggregate reaction in Nova Scotia. IV. Character of the reaction
... https://doi.org/10.1016/0008-8846(73)90091-4 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Alkali - aggregate reaction in Nova Scotia. IV. ...
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Development of a remote monitoring strategy for concrete building foundations affected by alkali-aggregate reaction
... ABSTRACT: Alkali-aggregate reaction (AAR) is one of the most serious problems that can ad- versely affect the durability and the integrity of concrete ...
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Alkali-aggregate reaction in Nova Scotia. Part 1. Summary of a 5-year study
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur.. For the publisher[r] ...
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Proposed universal accelerated test for alkali-aggregate reaction the concrete microbar test
... Mixing & Molding Procedure The cement and most of the water (290 ml) are put in the Hobart bowl and mixed at slow speed for 60 seconds The sides of the bowl are then scraped down and the paste is allowed to stand for ...
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Alkali-aggregate reaction in Nova Scotia. III. Laboratory studies of volume change
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur.. For the publisher[r] ...
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Alkali-aggregate reaction in Nova Scotia. II. Field and petrographic studies
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur.. For the publisher[r] ...
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Study of bond between epoxy, steel reinforcing bars and concrete affected by alkali-silica reaction
... Publié dans : the 15th International Conference on Alkali-Aggregate Reaction, July 03th - 07th , 2016 - São Paulo, SP, Brazil: http://ibracon.org.br/icaar/ determined in accordance with ASTM ...
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Coupled effects of aggregate size and alkali content on ASR expansion
... Keywords: Alkali-aggregate reaction; Particle size; Alkali content; Expansion; Model ...containing alkali-reactive ...the alkali content of the ...the aggregate size ...
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The Effects of lithium hydroxide solution on alkali silica reaction gels created with opal
... reduction in Ca(OH) 2 seems to coincide with the increased intensity of the low angle peak at about 7.5° 2 theta. The low angle peak (~7.5° 2 theta) observed in figures 2 and 3 corresponds to a basal plane spacing of ...
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Behavior of epoxy bonded bars in concrete affected by alkali-silica reaction
... 19. fib, "fib Model Code for Concrete Structures 2010", Lausanne, Switzerland: Ernst and Sohn; 2013, 653 pp. 514 20. Lindgård J., Andiç-Çakır Ö., Fernandes I., Rønning T. F., Thomas M. D., ...
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Optimising an expansion test for the assessment of alkali-silica reaction in concrete structures
... of alkali in aggregates, b) Filling of connected porosity by ASR-gels, c) Tensile stresses in the cement paste around aggregate compared to tensile strength, d) Permeation of ASR-gels through cracks and ...
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Laboratory evaluation of alkali-silica reaction in concrete from Saunders Generating Station
... The Na20 equivalent alkuli con- tent of the limestone is 0.85 percent by weight of the rock (Table I). The maximum amount of alkali extructed from the limestone calcium hydroxide paste i[r] ...
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Microstructural characterization and modeling of concrete damaged by Alkali-Silica Reaction (ASR)
... 35 Abstract Alkali–silica reaction (ASR) is a major issue for the durability of concrete structures worldwide. Fostering recants work which revealed the elastic property of ASR products elastic property, ...
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Reply to Questionnaire on Alkali-Aggregate Reactions for the Danish National Institute of Building Research
... Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Reply to Questionnaire on Alkali-Aggregate Reactions for the Danish National [r] ...
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Re-evaluation of standard mortar bar and concrete prism tests for alkali-aggregate reactivity
... The major advantage of the rate method over other methods of evaluating the potential expansivity of aggregates by either the mortar bar or concrete prism test is that on[r] ...
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Applying the Damage Rating Index for the spatial damage assessment in concrete specimens affected by alkali-silica reaction (ASR)
... the alkali content of the pore solution is high, and consequently the rate of leaching is likely to decrease as leaching keeps affecting the ...the alkali leaching mechanism described above, the optimal ...
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A new route for the synthesis of alkali polyphosphate from economical starting materials : part II - Influence of reaction conditions
... the reaction plateau time range from 120 to 480 min Na 2 HP 3 O 9 was present in the solid products because the quantity of sodium (in mmol) liberated from the elimination of chloride was much smaller than the ...
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Swellings due to alkali-silica reaction and delayed ettringite formation: Characterisation of expansion isotropy and effect of moisture conditions
... Once the specimens were immersed in water, expansion started very quickly for specimens containing the potentially reactive aggregates (expansion of more than 0.1% after 15 days of water supply). Specimens containing the ...
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Aggregate investment
... microeconomic data on the right hand side. An example serves to illustrate this aspect of the investment equation: If the adjustment hazard is quadratic. K{x) = Ao + Xix + \2X^,[r] ...
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