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Slender reinforced concrete shear walls with high-strength concrete boundary elements

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 138-151 doi: 10.1007/s11709-022-0897-y

Abstract: Reinforced concrete structural walls are commonly used for resisting lateral forces in buildings.Owing to the advancements in the field of concrete materials over the past few decades, concrete mixesof high compressive strength, commonly referred to as high-strength concrete (HSC), have been developedThe finite-element model of a conventional normal-strength concrete (NSC) prototype wall was validatedCold joints resulting from dissimilar concrete pours in the web and boundary elements of the HSC wall

Keywords： slender walls     high-strength concrete     rectangular and barbell-shaped walls     cold joints    

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Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fineconcrete shells

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 10,   Pages 1554-1570 doi: 10.1007/s11709-023-0955-0

Abstract: This paper proposes an innovative column composed of a core column (including both reinforced concrete(RC) and plain concrete (PC) columns) and a prefabricated textile-reinforced fine concrete (TRC) shellTo study the confinement properties of TRC shells on this novel type of concrete column, 20 circularFour key parameters, including the column size, reinforcing ratio of the carbon textile, concrete strengthanalytical model that can be used to calculate the stress–strain curves of prefabricated TRC shell-confined concrete

Keywords： textile-reinforced fine concrete     prefabricated shell     confined concrete column     confinement properties    

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Stability of three-dimensional printable foam concrete as function of surfactant characteristics

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 6,   Pages 935-947 doi: 10.1007/s11709-023-0964-z

Abstract: Extrudability is one of the most critical factors when designing three-dimensional printable foam concretethe foam stability which necessitates the investigation into surfactant properties particularly for concreteprinted foam concrete are scarce.characteristics on the stability, extrudability, and buildability of three-dimensional printed foam concreteUnlike traditional foam concrete, the variation in the stabilizer concentration and density of concrete

Keywords： foam concrete     3D printable concrete     stability     rheology     air void microstructure    

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Structural build-up model for three-dimensional concrete printing based on kinetics theory

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 7,   Pages 998-1014 doi: 10.1007/s11709-024-1081-3

Abstract: The thixotropic structural build-up is crucial in extrusion-based three-dimensional (3D) concrete printingpaper uses a theoretical model to predict the evolution of static and dynamic yield stress for printed concretethe experimental results, and it effectively characterizes the structural build-up of 3D printable concrete

Keywords： structural build-up     rheology     thixotropy     3D printable concrete     kinetics theory     ultra high performanceconcrete    

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Experimental study on shear behavior of prestressed reactive powder concrete I-girders

Hui ZHENG, Zhi FANG, Bin CHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 618-627 doi: 10.1007/s11709-018-0500-8

Abstract: As a new generation of concrete, RPC(Reactive Powder Concrete) has attracted great research attentionRPC, as a new concrete, was different from normal concrete and fiber reinforced concrete.

Keywords： prestressed concrete     RPC(Reactive Powder Concrete)     concrete beams     shear strength     experimental study    

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Microcapsule-enabled self-healing concrete: A bibliometric analysis

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 11,   Pages 1611-1629 doi: 10.1007/s11709-023-0023-9

Abstract: development of self-healing technology, the overall properties of the microcapsule-enabled self-healing concreteIn this research, a detailed assessment of current research on the microcapsule-enabled self-healing concreteThe current state of progress regarding self-healing concrete is assessed, and an analysis of the temporal

Keywords： microcapsule     self-healing concrete     bibliographic analysis    

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Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 586-598 doi: 10.1007/s11709-020-0573-z

Abstract: This paper presents a review of fracture modeling of concrete.The complex material, such as concrete, has been widely used in construction industries and become trendingBased on comprehensive literature review, there are two main approaches considered to-date of concreteof this review is to provide insight comparison from different techniques in modeling of fracture in concreteAs heterogeneity of concrete material is major concern in micromechanical-based concrete modeling, one

Keywords： concrete fracture     macroscopic     micromechanical     heterogeneity    

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Research on concrete structure defect repair based on three-dimensional printing

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 5,   Pages 731-742 doi: 10.1007/s11709-024-1088-9

Abstract: One common issue in concrete structures is the presence of defects.To enhance the automation level of concrete defect repairs, this study proposes a computer vision-basedLiDAR is utilized to model concrete pipelines and obtain geometric parameters regarding their appearanceAdditionally, a convolutional neural network (CNN) is employed with a depth camera to locate defects in concreteFinally, the feasibility of this concrete defect repair method is validated through simulation and experiments

Keywords： concrete     defect detection     3D printing     deep learning     point cloud data    

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Microbial-inspired self-healing of concrete cracks by sodium silicate-coated recycled concrete aggregates

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 1,   Pages 14-29 doi: 10.1007/s11709-023-0993-7

Abstract: Microbially induced carbonate precipitation (MICP) is a promising technique for the autonomous healing of concreteRecycled concrete aggregates (RCA) coated with sodium silicate have been proposed as protective carriersAlthough the presence of the coated RCA resulted in a loss of the splitting tension strength of the concreteConcrete incorporated with 20% RCA loaded with healing agents exhibited the best self-healing performancepackaging microbial healing agents and has great potential for developing cost-effective self-healing concrete

Keywords： self-healing     microbial-induced carbonate precipitation     water uptake     recycled concrete aggregate     protective    

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Experimental investigation on concrete overlaid with textile reinforced mortar: Influences of mix, temperature

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 271-283 doi: 10.1007/s11709-022-0896-z

Abstract: reinforced mortar is widely used as an overlay for the repair, rehabilitation, and retrofitting of concreteRecently, textile reinforced concrete has been identified as a suitable lining material for improvingthe durability of existing concrete structures.that showed the best performance in the abovementioned tests was examined for use as an overlay for a concreteInvestigations were performed on three different thicknesses of the textile reinforced mortar overlaid on concrete

Keywords： textile reinforced mortar     bending tests     acid and alkaline environment     concrete overlay    

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Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 411-428 doi: 10.1007/s11709-023-0928-3

Abstract: In this study, ultrahigh-performance fiber-reinforced concrete (UHPFRC) used in a type B70 concrete sleeperfrom these tests are measured and compared with those of a control sleeper manufactured using normal concreteSubsequently, the results of the study are applied to UHPFRC sleepers with different concrete volumesSleepers manufactured using UHPFRC with a steel fiber volume fraction of 1% and a concrete volume less

Keywords： pre-stressed concrete sleeper     ultrahigh performance fiber-reinforced concrete     pull-out test     static    

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In-situ condition monitoring of reinforced concrete structures

Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 420-437 doi: 10.1007/s11709-016-0336-z

Abstract: Performance of concrete structures is significantly influenced and governed by its durability and resistancedeterioration mechanisms, performance characteristics and parameters and condition monitoring of in situ concreteSome selected parameters influencing durability of reinforced concrete (RC) structures such as concreteEffects of concrete cover and compressive strength over the variation of chloride content with time are

Keywords： concrete     carbonation     chloride     corrosion     monitoring     models    

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Layout optimization of steel reinforcement in concrete structure using a truss-continuum model

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 669-685 doi: 10.1007/s11709-023-0963-0

Abstract: Owing to advancement in advanced manufacturing technology, the reinforcement design of concrete structuresa new approach is developed in this study to optimize the reinforcement layout in steel-reinforced concreteTo fully utilize the tensile strength of steel and the compressive strength of concrete, the optimizationsensitivity of steel in a concrete–steel composite is integrated with the average normal stress of aneighboring concrete.

Keywords： bi-directional evolutionary structural optimization     steel-reinforced concrete     concrete stress     reinforcement    

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Crack detection for wading-concrete structures using water irrigation and electric heating

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 368-377 doi: 10.1007/s11709-022-0926-x

Abstract: Cracking in wading-concrete structures has a worse impact on structural safety compared with conventionalconcrete structures.accurate and timely monitoring of crack development plays a significant role in the safety of wading-concreteBased on this, a novel crack-identification method for underwater concrete structures is presented.A series of tests was conducted on a reinforced-concrete beam using this system.

Keywords： structural health monitoring     underwater concrete structure     fiber Bragg grating     crack detection     temperature    

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The shear strength of the interface between artificial rock and printed concrete at super-early ages

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 1,   Pages 51-65 doi: 10.1007/s11709-024-1012-3

Abstract: 3D concrete printing has the potential to replace shotcrete for construction of linings of tunnels inThe shear strength of the interface between rock and printed concrete is vital, especially at super-earlythe direct shear test, are time-consuming and result in a high variability for fast-hardening printed concrete

Keywords： rock tunnel     printed concrete     interface     fast bond shear test     shear strength    

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Title Author Date Type Operation

Slender reinforced concrete shear walls with high-strength concrete boundary elements

Journal Article

Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fineconcrete shells

Journal Article

Stability of three-dimensional printable foam concrete as function of surfactant characteristics

Journal Article

Structural build-up model for three-dimensional concrete printing based on kinetics theory

Journal Article

Experimental study on shear behavior of prestressed reactive powder concrete I-girders

Hui ZHENG, Zhi FANG, Bin CHEN

Journal Article

Microcapsule-enabled self-healing concrete: A bibliometric analysis

Journal Article

Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Journal Article

Research on concrete structure defect repair based on three-dimensional printing

Journal Article

Microbial-inspired self-healing of concrete cracks by sodium silicate-coated recycled concrete aggregates

Journal Article

Experimental investigation on concrete overlaid with textile reinforced mortar: Influences of mix, temperature

Journal Article

Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Journal Article

In-situ condition monitoring of reinforced concrete structures

Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR

Journal Article

Layout optimization of steel reinforcement in concrete structure using a truss-continuum model

Journal Article

Crack detection for wading-concrete structures using water irrigation and electric heating

Journal Article

The shear strength of the interface between artificial rock and printed concrete at super-early ages

Journal Article