RILEM TC 247-DTA round robin test: sulfate resistance, alkali-silica reaction and freeze–thaw resistance of alkali-activated concretes
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چکیده
منابع مشابه
Efficacy of Aluminum Hydroxides as Inhibitors of Alkali-Silica Reaction
A comparative study of amorphous and crystalline forms of commercial aluminum hydroxides as inhibitors of alkalisilica reactions in Portland cement mortars has been performed. It was found that at dosages of 1% to 3%, amorphous aluminum hydroxide can efficiently inhibit alkali-silica expansion of Portland cement compositions. High inhibiting activity of amorphous Al(OH)3 additives may be explai...
متن کاملStudies on the Alkali–Silica Reaction Rim in a Simplified Calcium–Alkali–Silicate System
This work is intended to provide a better understanding about the properties and roles of the reaction rim in an alkali-silica reaction. A simplified calcium-alkali-silicate system was created to simulate the multiple interactions among reactive silica, alkaline solution and portlandite near the aggregate surface during the formation and evolution of the reaction rim in an alkali-silica reactio...
متن کاملEffect of Alkali Silica Reaction (ASR) in Geopolymer Concrete Final
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 of an experimental investigation of the inter-particle bonding between the reactive aggregates ...
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ژورنال
عنوان ژورنال: Materials and Structures
سال: 2020
ISSN: 1359-5997,1871-6873
DOI: 10.1617/s11527-020-01562-0