Effect of Polymers on Behavior of Ultra-High-Strength Concrete

Mayhoub, Ola A.; Abadel, Aref A.; Alharbi, Yousef R.; Nehdi, Moncef L.; Azevedo, Afonso Rangel Garcez de; Kohail, Mohamed

doi:10.3390/polym14132585

Cited by 18 publications

(4 citation statements)

References 47 publications

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“…At last, occurred an interconnection between the polymer layers and cement hydration. This should reduce the porosity of the cement matrix, thereby increasing mechanical properties; whereby decreasing porosity could inhibit the formation of impurity substances such as sulfate and chlorine ions, which of course also increased toughness [75].…”

Section: Adhesion Testmentioning

confidence: 99%

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Mechanical and Thermal Properties of Non-structural Adhesive Mortar using Linear Low Density Polyethylene (LLDPE) Aggregate Substitution with Vinyl Acetate/Ethylene (VAE) Interface

Hendriko,

Juwono,

Budiman

et al. 2023

Preprint

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Linear Low-Density Polyethylene (LLDPE) is a type of plastic with a high percentage of solid waste and is hardly degradable. The characteristics of LLDPE such as high toughness and low density have the potential to be an alternative aggregate substitute for applications in non-structural mortar composites. The purpose of this study was to determine the suitable formulation of LLDPE aggregate substitution against silica sand for the application of non-structural adhesive mortar composites. Vinyl Acetate/Ethylene (VAE) surfactant (1.2 wt%) was used to improve the interface between LLDPE and the cement matrix. Mechanical testing; XRD and FTIR characterization; density measurements; compression, adhesion, and thermogravimetric test; and morphological observation were carried out in this experiment. The Results showed that LLDPE substitution decreased physical properties and accelerated thermal degradation. Cracks occurred on higher amount of LLDPE composition due to big difference in polarity. Suitable LLDPE substitution composition for adhesive mortar is up to 50%.

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Section: Adhesion Testmentioning

confidence: 99%

“…where the higher amount of hydrophobic aggregate added, the worse the interface shall be, even though polymer has been added, due to the inability of the polymer to form bonds, absorb water for hydration, and ll the pores in the composites [71,74,75].…”

Section: Morphology and Microstructure Observation Of Selected Mortar...mentioning

confidence: 99%

Mechanical and Thermal Properties of Non-structural Adhesive Mortar using Linear Low Density Polyethylene (LLDPE) Aggregate Substitution with Vinyl Acetate/Ethylene (VAE) Interface

Hendriko,

Juwono,

Budiman

et al. 2023

Preprint

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show abstract

“…Polymer concrete (PC), a composite material consisting of various types of aggregates and a polymer matrix, is considered a promising material for pavement repair due to its fast curing and strong bonding with aggregates [ 13 ]. Compared with traditional asphalt mixtures, it has higher chemical resistance, better high-temperature stability, and good durability in field environments [ 14 ]. PU is a common polymeric binder that has been widely used in materials for drainage pavement structures, such as porous PU mixtures [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Properties and Its Prediction of Polymer Concrete for the Repair of Asphalt Pavements

Ren

2022

Polymers

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Polymer concrete (PC) is considered a promising repair material for asphalt pavement, since it has excellent paving performance and water stability. Although the mechanical properties of PC have been widely researched, the fatigue behavior of PC under traffic loads was still poorly understood. To predict the fatigue life and optimize the material design of PC, the semi-circular bending (SCB) tests were performed, considering different polymer content, sand ratio, aggregate features and stress condition. Two typical polymer materials were applied to prepare PC specimens, including epoxy resin (ER) and polyurethane (PU). The aggregate features were analyzed by the aggregate image measurement system. The mechanical behavior under repeated loads was investigated by the displacement, fatigue life and stiffness modulus. Results show that the flexural strength increases nonlinearly with the increasing polymer content, rapidly at first, and then slowly. The optimized polymer content and sand ratio were respectively 15% and 30%. As the loading number increases, the vertical displacement of PC shows three stages, i.e., undamaged stage, damage development stage, and fatigue failure stage. The stiffness modulus of the specimen is stress-dependent. An empirical model was developed to predict the fatigue life of PC, which can effectively capture the effects of the polymer content, sand ratio and stress level (or nominal stress ratio). It suggests that the fatigue life has a strong correlation with the mixing gradation, and the optimal sand ratio of PC can be determined by the proposed function. Moreover, the effect of aggregate shapes cannot be neglected.

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“…Concrete is the world's most-consumed manufactured material. Substantial research has been carried out to enhance the engineering properties, rheology, durability, and sustainability of various types of concrete [1]. At present, global waste tire generation considerably exceeds consumption; waste rubber tires are a cause of concern, as huge volumes are being discarded and buried, thus causing serious environmental pollution [2].…”

Section: Introductionmentioning

confidence: 99%

Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

Wang

Shao²,

Wang³

et al. 2022

Sustainability

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The utilization of waste rubber in concrete will reduce pollution and improve the efficiency of resource utilization. The effects of rubber particles and basalt fibers on the compressive strength and splitting tensile strength of concrete were investigated. In addition, the influence of basalt fibers on the mechanical properties and micropore structure of rubber concrete (RC) were analyzed using scanning electron microscopy (SEM) and X-ray computed tomography (CT). The distribution of rubber particles in concrete was also studied. The results indicate that the effects of basalts fibers on the mechanical properties of rubber concrete were significant. The rubber particles were evenly distributed in the concrete. Compared with normal concrete (NC), rubber concrete with 10% rubber particles had lower compressive strength and splitting tensile strength. Compared with rubber concrete, basalt fiber rubber concrete (BFRC) with 2% basalt fibers had no obvious effect on the compressive strength, while significantly improving the splitting tensile strength, refining the pores of rubber concrete, and reducing the porosity of the matrix. The effects of basalt fiber on the properties and pore distribution of RC should be considered in future applications.

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Effect of Polymers on Behavior of Ultra-High-Strength Concrete

Cited by 18 publications

References 47 publications

Mechanical and Thermal Properties of Non-structural Adhesive Mortar using Linear Low Density Polyethylene (LLDPE) Aggregate Substitution with Vinyl Acetate/Ethylene (VAE) Interface

Mechanical and Thermal Properties of Non-structural Adhesive Mortar using Linear Low Density Polyethylene (LLDPE) Aggregate Substitution with Vinyl Acetate/Ethylene (VAE) Interface

Fatigue Properties and Its Prediction of Polymer Concrete for the Repair of Asphalt Pavements

Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

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