Experimental investigation on the interfacial shear bond performance of non-water reacting polymer and concrete

Qin, Lei; Guo, Chengchao; Sun, Wei; Guan, Huan; Wang, Yan; Wang, Fuming

doi:10.1016/j.conbuildmat.2022.127351

Cited by 21 publications

(3 citation statements)

References 19 publications

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“…Butyl benzene latex modified cement mortars have indicated exceptional toughness while requiring less water when compared to different types of polymers. Thus, they have been prevalently used as adhesives in repairing materials for civil engineering structures [33][34][35]. The polymer latex may be categorized into two main groups: (i) SBR latex with only enhanced physical properties; (ii) carboxylic styrene-butadiene latex with enhanced physical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…This physical densification reduces the porosity of the cementitious matrix and thereby, enhances the mechanical properties. Furthermore, lower porosity can reduce the intrusion of hostile substances, such as chloride and sulfate ions, and bridge microcracks to enhance ductility and toughness [34][35][36][37]. The inclusion of polymers also favorably affects the flowability and workability of conventional concrete as water-reducing admixtures have been widely used [35,38,39].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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The development of ultra-high-performance concrete (UHPC) is still practically limited due to the scarcity of robust mixture designs and sustainable sources of local constituent materials. This study investigates the engineering characteristics of Styrene Butadiene Rubber (SBR) polymeric fiber-reinforced UHPC with partial substitution of cement at 0, 5 and 20 wt.% with latex polymer under steam and air curing techniques. The compressive and tensile strengths along with capillary water absorption and sulfate resistance were measured to evaluate the mechanical and durability properties. Scanning Electron Microscopy (SEM) was carried out to explore the microstructure development and hydration products in the designed mixtures under different curing regimes. The results indicated that the mixtures incorporating 20 wt.% SBR polymer achieved superior compressive strength at later ages. Additionally, the tensile strength of the polymeric UHPC without steel fibers and with 20% polymers was enhanced by 50%, which promotes the development of novel UHPC mixtures in which steel fibers could be partially replaced by polymer, while enhancing the tensile properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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“…In addition, they also possess early strength properties and are different from conventional cement-based grouting materials, such as small disturbance on structure (static press in construction), earthquake and crack resistance behavior (compatible with soils), convenient construction equipment (only 2.4 m width of equipment) and low cost (saving 30% of time and cost). Therefore, they are widely used in seepage prevention, infrastructure reinforcement, and as support materials in infrastructure engineering projects [10][11][12][13][14][15] (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

A Study on the Interaction Behavior between an Earth-Rock Dam and a New-Typed Polymer Anti-Seepage Wall

Zhang¹,

Chuhao²,

Jia³

et al. 2022

Sustainability

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Polymer anti-seepage wall has been gradually applied in earth-rock dam reinforcement projects as a new seepage control technique. However, due to all-pervasive properties of the new materials and root-like connection between the materials and soils, the interface characteristics between the polymer wall and the earth-rock dam, as well as the interaction behavior of both, are complex and still not clear, which obstruct studying coordination mechanism of dam and wall under earthquake. Therefore, the interface characteristics and interaction behavior of dam and wall were studied in the article. Firstly, the dynamic shear stress-displacement, shear stiffness and damping ratio of the interface between polymer and soil were investigated by ring shear test. In addition, the viscoelastic constitutive model of polymer materials were researched by dynamic mechanical analysis (DMA) test. Based on tests results, a finite element model of earth-rock dam with polymer wall was established, including a non-linear simulation interface element and viscoelastic polymer constitutive model. Next, the validity of the simulation model was verified based on dynamic centrifuge test results. Then, the interaction behavior and seismic response of the dam with polymer wall were explored by using the verified model. The research results provide a scientific basis for the development and application of new-typed polymer anti-seepage wall in reinforcement engineering.

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Experimental study on the cushioning energy absorption characteristics of polymer materials resistant to seawater erosion in seismic damping layers

Shi,

Guo,

Sun

2024

J of Applied Polymer Sci

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Polymer materials exhibit vibration damping properties, yet scant research exists on their applicability to submarine tunnels. This study investigates the dynamic characteristics of Polymer Materials Resistant to Seawater Erosion (hereafter referred to as PMRSE) under varying conditions of density, confining pressure, strain rate, and erosion duration through dynamic triaxial tests. The results reveal an increase in material strength with a rise in density; enhanced strength and ductility with increasing confining pressure; and augmented strength and yield stress in correspondence with heightened strain rates. As confining pressure ascends, the equivalent damping ratio of PMRSE gradually diminishes. SEM and EDS indicate a porous structure for PMRSE, with a molded surface skin formed post‐manufacturing to thwart seawater erosion. The strain energy storage and energy absorption evaluation of PMRSE demonstrate its excellence as an energy‐absorbing material. Eventually, employing a numerical simulation model for a specific submarine tunnel reveals that the presence of a damping layer absorbs seismic energy and enhances the stress conditions of the secondary lining. PMRSE manifests as a strain‐rate sensitive material unaffected by seawater corrosion, which exhibits deformation characteristics of low yield strength and long yield stage. Accordingly, PMRSE proves suitable for vibration damping in submarine tunnels.

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Experimental investigation on the interfacial shear bond performance of non-water reacting polymer and concrete

Cited by 21 publications

References 19 publications

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

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

A Study on the Interaction Behavior between an Earth-Rock Dam and a New-Typed Polymer Anti-Seepage Wall

Experimental study on the cushioning energy absorption characteristics of polymer materials resistant to seawater erosion in seismic damping layers

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