Investigating fracture mechanics and flexural properties of unsaturated polyester polymer concrete (UP-PC)

Hashemi, Mohammadjafar; Jamshidi, Masoud; Aghdam, J. Hassanpour

doi:10.1016/j.conbuildmat.2017.12.115

Cited by 51 publications

(18 citation statements)

References 36 publications

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“…Previous studies on UP polymer concrete have focused on research associated with the material's physical and mechanical properties [13,[15][16][17] or chemical resistance and durability [5,13,14,18,19]. However, little work has addressed its deformability, which is a disadvantage of UP polymer concrete and an important parameter for precast products and onsite applications.…”

Section: Significance Of the Researchmentioning

confidence: 99%

“…There are currently no studies on the concentration of SRAs and fillers, which are important parameters for the deformation of UP polymer concrete. In the use of fillers, some research has employed fly ash [5][6][7]16], calcium carbonate [4,13], or blast furnace slag micro-fillers [17]. However, few have compared the effectiveness of the use of multiple fillers simultaneously employed to produce concrete.…”

Section: Significance Of the Researchmentioning

confidence: 99%

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Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

2020

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In this study, the effects of shrinkage reduction agent (SRA) content and filler type on the deformability characteristics of unsaturated polyester (UP) resin-based polymer concrete were experimentally investigated. Specifically, the setting shrinkage, thermal expansion, maximum compressive strain and the modulus of elasticity of UP polymer concrete were all analyzed. Setting shrinkage was found to be influenced by the UP resin, the SRA and filler. The thermal expansion, maximum compressive strain and modulus of elasticity were also affected by the aggregate. The effect of SRA content on deformability was found to be greater than that of the filler type. To put UP polymer concrete to efficient use, it is essential to secure proper deformability according to the intended purpose. At that time, it is desirable that the deformation characteristics resulting from the SRA content and filler type sufficiently reflect when the mix proportion is determined. The effects of filler type on the deformability of UP polymer concrete are such that: A uniform dispersion of filler particles impacts the setting shrinkage; the thermal expansion is influenced by the filler’s various thermal expansion properties; the compressive strain is related to the nature of the small spherical particles that tend to fill porosity, producing better packing of the aggregate materials; and the modulus of elasticity is influenced by the density, which is related to the strength of the filler. However, additional in-depth studies are required on all of these elements.

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Section: Significance Of the Researchmentioning

confidence: 99%

Section: Significance Of the Researchmentioning

confidence: 99%

Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

2020

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“…Unsaturated polyester resins (UPRs) are used in civil/structural engineering applications, ships materials, composites, construction, piping, storage tanks, protective coatings, and automotive paints, which required high strength, ductility properties, and fire resistance [3][4][5].…”

Section: Thermoset Polyesters (Unsaturated Polyester)mentioning

confidence: 99%

“…Furthermore, their stiffness and strength properties were limited in comparison with other thermosetting resins. Fiber-reinforced unsaturated polyesters (UPs) and filler containing UPs were widely investigated to surpass these deficiencies [3][4][5]. Applications of unsaturated polyester resins were illustrated in Figure 1.…”

Section: Thermoset Polyesters (Unsaturated Polyester)mentioning

confidence: 99%

Introductory Chapter: Introduction to “Polyester – Production, Characterization and Innovative Applications”

Camlibel¹

2018

Polyester - Production, Characterization and Innovative Applications

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“…Reaktionskunststoffe erhöhen wie Zementsuspensionen die Festigkeit und Steifigkeit des anstehenden Baugrunds, zeichnen sich allerdings durch ein erhöhtes elastisches Verhalten aus. Außerdem ist die geringe Aushärtezeit [3,4] besonders positiv zu bewerten, die den Einsatz auch in einem Havariefall erlaubt. Vergleichend zu Normalbeton weisen sie aber i. d. R. eine verminderte Druckfestigkeit auf, wodurch die Anwendung auf gewisse Einsatzgebiete beschränkt bleibt.…”

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Baugrundverfestigung mit schnell abbindenden Reaktionspolymeren

Lichtblau

Wiegel²,

Tintelnot³

2020

Bautechnik

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Baugrundverfestigungen zur Erhöhung der Tragfähigkeit werden häufig mithilfe von Zementsuspensionen realisiert. Eine Alternative hierzu können polymermodifizierte Verfestigungskörper sein. Sie härten schneller aus als herkömmliche zementbasierte Mischungen. Zudem besitzen sie eine höhere Duktilität. Über die Variation der einzelnen Komponenten lassen sich die Eigenschaften gezielt in viele Richtungen steuern. Die erreichbaren Eigenschaften hängen allerdings teilweise stark von Baugrundbedingungen und Bodenzustand ab. Hierzu wurden weitreichende Untersuchungen an einem Boden‐Kunststoffgemisch sowie einem Boden‐Zement‐Kunststoffgemisch durchgeführt. In Laborversuchen wurde insbesondere die Entwicklung der Druckfestigkeit in Abhängigkeit von der Aushärtezeit und dem Umgebungswassergehalt untersucht. Des Weiteren wurde das volumetrische Verhalten während der Erhärtungsreaktion analysiert. Es hat sich gezeigt, dass der Einsatz von Polymeren einen signifikant positiven Effekt auf die Aushärtegeschwindigkeit und, in Verbindung mit Zement, auf die Festigkeitserhöhung im Vergleich mit Zementsuspensionen hat. Insbesondere die sehr hohe Frühfestigkeit bietet einen Vorteil für bautechnische Zwecke, um bspw. im Havariefall schnell und effektiv in den Baugrund eingreifen zu können.

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Investigating fracture mechanics and flexural properties of unsaturated polyester polymer concrete (UP-PC)

Cited by 51 publications

References 36 publications

Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

Introductory Chapter: Introduction to “Polyester – Production, Characterization and Innovative Applications”

Baugrundverfestigung mit schnell abbindenden Reaktionspolymeren

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