Rheological Properties and Strength of Polypropylene Fiber-Reinforced Self-compacting Lightweight Concrete Produced with Ground Limestone

Altalabani, Danar; Linsel, Stefan; Bzeni, Dillshad K. H.

doi:10.1007/s13369-020-04410-z

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…Se concluye que a medida que se va agregando fibras de polipropileno, PAIDEIA XXI se van presentando un conjunto de resultado referentes a las propiedades del hormigón, una de ellas es la reducción de la trabajabilidad. Conforme lo indican Altalabani et al (2020), se va aumentando el porcentaje de fibra de polipropileno al hormigón y la trabajabilidad en la mezcla disminuye. Así como también lo constatan Sarikaya & Susurluk (2019) y Prakash et al (2020), en el que deducen que el uso de fibra de polipropileno en hormigón fluido provoca disminución en el asentamiento teniendo en cuenta que esta es una característica importante del concreto freso aun considerando un efecto negativo en la trabajabilidad.…”

Section: Paideia XXIunclassified

Resistencia a La Compresión De Hormigones Reforzados Con Fibra De Polipropileno

Obando-Guillermo,

Carranza-Muñoz,

Díaz-Quepuy

et al. 2023

Paideia XXI

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Las cualidades de las fibras de polipropileno acompañadas de materiales ideales como hormigón, ha traído consigo estructuras sólidas y resistentes a todo tipo de construcción como pavimentos, túneles, carreteras, entre otros. El presente documento tiene como objetivo examinar el comportamiento del hormigón reforzado con distintos tipos de fibra incluyendo la fibra de polipropileno, con la finalidad de conocer su reacción frente a procesos mecánicos. Se realizó la revisión de 50 artículos entre los años 2010 al 2021, entre las que destaca las bases de datos de Scopus, Scielo, ScienceDirect y EBSCO, analizando los efectos de las fibras y la influencia que tiene en la resistencia a la compresión de hormigones. Con la intensión de conocer las mejoras en la resistencia del concreto utilizando fibra de polipropileno, se presentan los resultados obtenidos con diferentes dosificaciones de esta fibra. Concluimos con que el uso de la fibra de polipropileno genera los siguientes cambios en las propiedades del concreto: 1) aumento en su capacidad a tracción; 2) disminución de la trabajabilidad del hormigón, y 3) mayor ductilidad en el concreto. Palabras clave: Fibras de polipropileno – hormigones – resistencia a la compresión

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Section: Paideia XXIunclassified

Resistencia a La Compresión De Hormigones Reforzados Con Fibra De Polipropileno

Obando-Guillermo,

Carranza-Muñoz,

Díaz-Quepuy

et al. 2023

Paideia XXI

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“…The use of lightweight, high-strength, and high-performance concrete is deemed feasible for lightweighting. Various types of natural and artificial lightweight aggregates are used in lightweight aggregate concrete [25][26][27][28]. This trend is gradually increasing due to sustainable development efforts to reduce energy consumption and CO 2 emissions [29,30].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Architectural Modular Member with Ultra-High-Performance Fiber-Reinforced Concrete for Application

Kim,

Yoon,

Ryu

et al. 2024

Applied Sciences

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As the modular industry expands, the most widely used building materials are primarily concrete, steel, and wood. However, the use of wood and steel is severely limited compared to concrete for reasons such as durability and economy. To overcome these shortcomings, we aimed to apply ultra-high-performance fiber-reinforced concrete (UHPFRC), which has excellent compressive strength and tensile strength, high durability, and minimal reinforcement with steel fibers. In this study, research was conducted on the development of unit box-type architectural modules using UHPFRC with a compressive strength of 120 MPa and a tensile strength of greater than 7 MPa. Various amounts of steel fibers (Vf = 1.0, 1.5, and 2.0%) were evaluated to determine the optimal mixing ratio of UHPFRC, in which both the durability and mechanical performance were assessed. The compressive strength and tensile strength of UHPFRC were found to be 132 MPa and 10.1 MPa, respectively, while its resistance to chloride penetration averaged 14.47 coulombs, indicating superior durability compared to conventional concrete. To reduce the weight of the unit components of the architectural modular system, both normal concrete (NC) components and UHPFRC were applied. The main variables in the flexural tests were the cross-sectional thickness, steel fiber content, and presence of an insulation material, comprising a total of three variables for evaluating the flexural performance. The application of UHPFRC with a compressive strength of 120 MPa, a cross-sectional thickness of 120 mm, and a 10 mm diameter reinforcement provided a similar performance to that of NC components while reducing concrete usage by 60% compared to NC components. Additionally, structural analysis was performed to prototype the unit box-type modular structure using UHPFRC. The modular structural system developed in this study was found to reduce construction costs by 18.7% compared to traditional steel structural systems. Further research is necessary to address issues such as floor slab vibration and noise, connections, and expansion to multistory buildings for commercialization of modular structures using UHPFRC.

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“…Lightweight concrete has been widely used in the construction industry due to its low density, lightweight, good thermal insulation performance and high seismic performance (Altalabani et al, 2020;Farahani et al, 2017;Tian et al, 2020;Zhang et al, 2020). However, these advantages also lead to disadvantages such as a low bending resistance, tensile resistance and load-bearing capacity, which hinder its development (Regin et al, 2016;Momber, 2011;Shen et al, 2020) .…”

Section: Introductionmentioning

confidence: 99%

The meso-failure mechanism of lightweight concrete simulated by the phase field method

Wang

Gao

2021

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PurposeA mesoscopic phase field (PF) model is proposed to simulate the meso-failure process of lightweight concrete.Design/methodology/approachThe PF damage model is applied to the meso-failure process of lightweight concrete through the ABAQUS subroutine user-defined element (UEL). And the improved staggered iteration scheme with a one-pass procedure is used to alternately solve the coupling equations.FindingsThese examples clearly show that the crack initiation of the lightweight concrete specimens mainly occurs in the ceramsite aggregates with weak strength, especially in the larger aggregates. The crack propagation paths of the specimens with the same volume fraction of light aggregates are completely different, but the crack propagation paths all pass through the ceramsite aggregates near the cracks. The results also showed that with the increase in the volume fractions of the aggregates, the slope and the peak loads of the force-deflection (F-d) curves gradually decrease, the load-bearing capacity of the lightweight concrete specimens decreases, and crack branching and coalescence are less likely during crack propagation.Originality/valueThe mesostructures with a mortar matrix, aggregates and an interfacial transition zone (ITZ) are generated by an automatic generation and placement program, thus incorporating the typical three-phase characteristics of lightweight concrete into the PF model.

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Rheological Properties and Strength of Polypropylene Fiber-Reinforced Self-compacting Lightweight Concrete Produced with Ground Limestone

Cited by 9 publications

References 7 publications

Resistencia a La Compresión De Hormigones Reforzados Con Fibra De Polipropileno

Resistencia a La Compresión De Hormigones Reforzados Con Fibra De Polipropileno

Performance Evaluation of Architectural Modular Member with Ultra-High-Performance Fiber-Reinforced Concrete for Application

The meso-failure mechanism of lightweight concrete simulated by the phase field method

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