Alkali Activated Slag
Appliion of alkali activated slag cement for ...
Appliion of alkali activated slag cement for solidifiion of radioactive wastes in reprocessing plant. Nuclear recycling. RECOD 98. 5. international nuclear conference on recycling, conditioning and disposal. [en] The alkali activated slug cement was examined to solidify sodium nitrate waste and incinerator ash, those are radioactive ...
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slag (5) granulated blastfurnace slag (3) mechanical properties (3) shrinkage (3) alkali activated cement (2) alkaliactivated mortar (2) alkaliactivated slag mortar (2) hodic protection (2) (113) (3) construction and building materials (42) advanced materials research (8)
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Hydration of alkaliactivated slag: thermodynamic ...
The composition of solid and liquid phases of alkaliactivated slag systems was investigated by thermodynamic modelling. The calculations predict the formation of C(–A)–S–H, stratlingite and hydrotalcite in different alkaliactivated slag systems, which agrees well with experimental findings.
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Alkaliactivated and geopolymer materials developed using ...
The results showed that the strength of the PAC mixtures containing alkaliactivated slag grouts with high alkali concentrations was lower. However, a structural PAC mixture containing alkaliactivated slag grout with compressive strength of MPa and modulus of elasticity of GPa was developed. 7. Production using 3D
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Mitigation of Autogenous Shrinkage in Alkali Activated ...
Nov 19, 2012 · Alkali activated slag shows considerable promise as an environmentally friendly alternative to binders produced from ordinary portland cement (OPC). The shrinkage behavior of alkali activated slags, however, is not well understood, and is a hurdle to widespread adoption. The use of pre wetted lightweight aggregatebased internal curing to ...
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Present State and Future of AlkaliActivated Slag Concretes
The difference of microstructure between portland cement concrete and alkaliactivated slag concrete and its consequences for their properties, especially for very high strengths and corrosion resistance, is discussed. The use of nonstandard aggregate and other industrial byproducts, as well as the low costs of this type of concrete are presented.
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Why AlkaliActivated Materials are NOT Geopolymers ...
Jul 27, 2017 · Prof. J. Davidovits explains the main differences between AAC (AlkaliActivated Cement or Concrete), AAS (AlkaliActivated Slag), AAF (AlkaliActivated Fly Ash) and Slagbased Geopolymer cement, in terms of chemistry, molecular structure, longterm durability. In a second part, on hand of the industrialization of Slag/fly ashbased geopolymer ...
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AlkaliActivated Stainless Steel Slag as a Cementitious ...
This work develops the manufacture of selfcompacting concrete (SCC) with 50% cement reduction. As an alternative binder to cement, the viability of using an alkaliactivated combination of stainless steel slag (SSS) and fly ash (FA) has been demonstrated. SSS was processed applying three different treatments. Binders were manufactured mixing 35% SSS with 65% FA, as precursors, and a .
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A Review of Durability and Strength Characteristics of ...
Alkaliactivated slag (AAS) is a promising alternative to ordinary Portland cement (OPC) as sole binder for reinforced concrete structures. OPC is reportedly responsible for over 5% of the global CO 2 emission. In addition, slag is an industrial byproduct that must be landfilled if not reused.
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Mitigation of Autogenous Shrinkage in Alkali Activated ...
Nov 19, 2012 · Alkali activated slag shows considerable promise as an environmentally friendly alternative to binders produced from ordinary portland cement (OPC). The shrinkage behavior of alkali activated slags, however, is not well understood, and is a hurdle to widespread adoption. The use of pre wetted lightweight aggregatebased internal curing to ...
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Microstructural, Mechanical, and Durability Related ...
Sep 02, 2014 · Alkaliactivated slag concretes are being extensively researched because of its potential sustainabilityrelated benefits. For such concretes to be implemented in large scale concrete appliions such as infrastructural and building elements, it is essential to understand its early and longterm performance characteristics visàvis conventional ordinary portland cement (OPC) based concretes.
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Appliion of alkali activated slag cement for ...
Appliion of alkali activated slag cement for solidifiion of radioactive wastes in reprocessing plant. Nuclear recycling. RECOD 98. 5. international nuclear conference on recycling, conditioning and disposal. [en] The alkali activated slug cement was examined to solidify sodium nitrate waste and incinerator ash, those are radioactive ...
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Appliion of alkali activated slag cement for ...
Appliion of alkali activated slag cement for solidifiion of radioactive wastes in reprocessing plant. Nuclear recycling. RECOD 98. 5. international nuclear conference on recycling, conditioning and disposal. [en] The alkali activated slug cement was examined to solidify sodium nitrate waste and incinerator ash, those are radioactive ...
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"AlkaliActivated Natural Pozzolan/Slag Binder for ...
Dec 01, 2016 · A stepbystep research program was designed to (1) develop alkaliactivated natural Pozzolan/slag pastes with adequate fresh and strength properties, (2) produce alkaliactivated natural Pozzolan/slag mortars to assess the effects of dominant variables on their plastic and hardened properties, and (3) finally produce and assess fresh ...
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Factors Affecting Compressive Strength Development in ...
Sep 01, 2019 · Alkaliactivated slag (AAS) has been studied for decades as potential alternative to OPC. Engineers are interested in understanding and quantifying the fresh properties, mechanical properties, and durability of concrete made used AAS as sole binder. This paper reviews some of the literature highlighting the factors affecting compressive ...
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Alkaliactivated cement using slags and fly ash | Publons
Alkali Activated Cements (AAC) are a very convenient alternative to common binders as waste materials like slag and fly ash are included in their production. In this paper, a response surface method is used to optimize an AAC made with fly ash, steel slag, sodium silie and sodium hydroxide.
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Alkaliactivated slag cement and concrete: a review of ...
Jul 27, 1995 · This paper summarizes the advantageous and disadvantageous properties of alkaliactivated slag cement and concrete by reviewing previously published work in English, Russian and Chinese. Practical problems and theoretical questions are discussed. Topics for .
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"Alkali Activated Slag Characterization by Scanning ...
Alkaliactivated blast furnace slag cements have been studied since the 1930s due to its high compressive strength; they can exceed 100 MPa in 28 days. The low Ca/Si ratio in slag improves its resistance to aggressive chemical materials such as acids, chlorides and sulphates. Blast furnace slag is a highly heterogeneous material.
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