Development of mixture design of heat resistant alkali-activated aluminosilicate binder-based adhesives

Schroeyers, Wouter; Petropavlovsky, O.; Vozniuk, Hrygorii

doi:10.1016/j.conbuildmat.2017.05.138

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…One of the promising ways for comprehensive disposal of industrial wastewater treatment products is to use them as components for water mixing and for the filler of alkaline cements [7]. These materials have unique performance properties, and include in their composition to 95 % of waste and related industrial products (fuel ash [8], blast furnace granulated slags [9], etc. [10]).…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials

Kovalchuk¹,

Kochetov²,

Samchenko³

et al. 2019

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials

Kovalchuk¹,

Kochetov²,

Samchenko³

et al. 2019

EEJET

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“…The reduction in mechanical properties could be the degradation of geopolymer gel. The alumosilicate adhesives based on analcime and zeolite ZK-14 phases could be used in fire-resistant structures, as stated by Krivenko et al [8]. In this case, metakaolin and amorphous silica were activated with soluble sodium silicate, sodium, and potassium hydroxide solution.…”

Section: Introductionmentioning

confidence: 99%

Alkali-Activated Slag Coatings for Fire Protection of OPC Concrete

Kielė,

Vaičiukynienė,

Bertašius

et al. 2023

Materials

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During a fire, ordinary Portland cement (OPC) systems lose their mechanical properties. For this reason, it is important to find a way to protect it. This study suggested alternative uses of slag and phosphogypsum to produce coatings for fire-resistant applications. Five compositions of 10 mm thick alkali-activated slag coatings were investigated. In these compositions, different amounts of phosphogypsum (1%, 3%, 5%, 7%, and 10%) were used. In the first stage of this study, the residual compressive strength of samples with the coatings based on alkali-activated slag was compared to the results of OPC concrete samples without coatings. The experimental results showed that a higher residual compressive strength of 33.2–47.3 MPa OPC concrete was achieved for the samples with coatings. Meanwhile, the residual compressive strength of the uncoated samples was 32.37 MPa. In the second stage, OPC concrete samples were reinforced with fiberglass polymer (FRP) rods, and they had a similar positive effect on alkali-activated coatings. After exposure to higher temperatures, the pullout tests of the glass FRP bars showed that the adhesion strength was (9.44 MPa) 43.9% higher for the samples with coatings compared to the samples without coatings (6.56 MPa). Therefore, a higher bond strength can be maintained between concrete and FRP bars. Alkali-activated slag with 3% phosphogypsum can be used for the production of fire-resistant coating. These coatings could protect OPC concrete and reinforced concrete with glass FRP bars from fire.

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“…can be used to enhance early strength [5,6]. Alkaline activation is ensured by alkaline metals compounds to aluminosilicate component in order to produce alkali-activated cements with increased strength [7], heat resistance [8], adhesion [9], corrosion resistance [10] if compare with analogues based on traditional clinker cements. The advantages of AASC in ecological aspect are related to reduction of CO2 emission due to application of by-products as well as waste products [11,12,13] and introducing industrial waste water in safe building materials [14,15].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Complex Additive on Strength and Proper Deformations of Alkali-Activated Slag Cements

Schroeyers

Petropavlovskyi

Rudenko

et al. 2019

MSF

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The peculiarity of alkali-activated slag cements (further, AASC’s) is increased proper deformations, which can cause increased cracking and reduced durability of structure. The paper is devoted to manage AASC’s proper deformations. The main task was to determine the composition of complex additives (further, CA’s) in system «ordinary portland cement (further, OPC) clinker - mineral compound of different anionic type - surfactant» in presence of sodium metasilicate (further, MS) to affect on hydrated AASC performance while ensuring effective structure of artificial stone by criterion of shrinkage deformations. Comparative analysis of hydrated cement systems "OPC clinker - MS", "OPC clinker - mineral compound - MS" and "OPC clinker - mineral compound - MS - surfactant" showed that the greatest effect on reduction of proper deformations occurs when the mineral compounds relate to electrolytes, i.e. Na2SO4 and NaNO3. Hydrated system is characterized by expansion (+0,062 mm/m) in presence of Na2SO4. Almost no shrinkage is supplied by application of NaNO3 (-0,062 mm/m). The obtained CA’s were tested in AASC. CA in the system “OPC clinker - NaNO3 - surfactant” provides the initial setting 43 min, the end - 65 min with accelerated strength. Investigated AASC can be classified as non-shrinking cement. This phenomena is ensured by increasing density, homogeneity and monolithicity of hydrosilicate formations, as well as due to formation of hydroaluminosilicate structures with different morphology by inclusion of nitrate anions.

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Development of mixture design of heat resistant alkali-activated aluminosilicate binder-based adhesives

Cited by 9 publications

References 10 publications

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials

Alkali-Activated Slag Coatings for Fire Protection of OPC Concrete

The Influence of Complex Additive on Strength and Proper Deformations of Alkali-Activated Slag Cements

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Development of mixture design of heat resistant alkali-activated aluminosilicate binder-based adhesives

Cited by 9 publications

References 10 publications

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkaline­activated materials

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkaline­activated materials

Alkali-Activated Slag Coatings for Fire Protection of OPC Concrete

The Influence of Complex Additive on Strength and Proper Deformations of Alkali-Activated Slag Cements

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Product

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Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkalineactivated materials