Review of ultra-high performance concrete and its application in bridge engineering

Xue, Junqing; Briseghella, Bruno; Huang, Fuyun; Nuti, Camillo; Tabatabai, Habib; Chen, Baochun

doi:10.1016/j.conbuildmat.2020.119844

Cited by 252 publications

(78 citation statements)

References 79 publications

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“…For example, it has strong resistance to water permeability, chloride penetration, freeze and thaw, and chemical attack because of its great material properties. Comprehensive studies on UHPC have been conducted for the last few decades such as the rheological properties of a fresh paste of UHPC [ 15 , 16 , 17 , 18 , 19 , 20 ], the effect of fibers [ 16 , 19 , 21 , 22 , 23 ], mix design [ 24 , 25 , 26 , 27 , 28 , 29 ], and structural applications [ 30 , 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

The Role of Supplementary Cementitious Materials (SCMs) in Ultra High Performance Concrete (UHPC): A Review

Park

Liu

et al. 2021

Materials

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Although ultra high-performance concrete (UHPC) has great performance in strength and durability, it has a disadvantage in the environmental aspect; it contains a large amount of cement that is responsible for a high amount of CO2 emissions from UHPC. Supplementary cementitious materials (SCMs), industrial by-products or naturally occurring materials can help relieve the environmental burden by reducing the amount of cement in UHPC. This paper reviews the effect of SCMs on the properties of UHPC in the aspects of material properties and environmental impacts. It was found that various kinds of SCMs have been used in UHPC in the literature and they can be classified as slag, fly ash, limestone powder, metakaolin, and others. The effects of each SCM are discussed mainly on the early age compressive strength, the late age compressive strength, the workability, and the shrinkage of UHPC. It can be concluded that various forms of SCMs were successfully applied to UHPC possessing the material requirement of UHPC such as compressive strength. Finally, the analysis on the environmental impact of the UHPC mix designs with the SCMs is provided using embodied CO2 generated during the material production.

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Section: Introductionmentioning

confidence: 99%

The Role of Supplementary Cementitious Materials (SCMs) in Ultra High Performance Concrete (UHPC): A Review

Park

Liu

et al. 2021

Materials

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“…Either the partial replacement of Portland cement by highvolume pozzolanic materials such as fly ash, ground granulated blast furnace slag (GGBS), rice husk ash, or the incorporation of https://doi.org/10.1016/j.conbuildmat.2020.121126 0950-0618/Ó 2020 Elsevier Ltd. All rights reserved. inert fillers such as limestone powder or quarry-stone powders into UHPCs have been implemented to overcome these drawbacks [8][9][10][11]. While choosing the appropriate material for reducing the cost and environmental impact, local availability can be evaluated as the key factor.…”

Section: Introductionmentioning

confidence: 99%

Elephant skin formation on UHPC surface: Effects of climatic condition and blast furnace slag content

Yalçınkaya

Çopuroğlu

2021

Construction and Building Materials

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h i g h l i g h t sElephant skin formation can be seen on the casting surface of UHPC under any drying conditions. Elephant skin hampers the evacuation of air bubbles and results in a marked change in pore profile. A condition that triggers vapor condensation on the casting surface eliminates the elephant skin. Partial replacement of Portland cement with GGBS cannot eliminate the skinning phenomenon.

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“…Ultrahigh-performance fiber-reinforced concrete (UHPFRC) is a cement matrix composite material based on the principle of maximum compactness. In recent years, the UHPFRC has gained popularity in the construction and rehabilitation of infrastructures due to its high compressive, pre-and postracking tensile strengths, as well as negligible permeability [1][2][3]. As a new trend in the bridge engineering material field, the UHPFRC application to the prestressed bridge structure can not only provide effective prestress in the beam but also solve the problems of prestressed bridge main span deflection and beam cracking, realize structural form diversification and lightweight and thin-walled structure, prolong the service life of the structure, and save resources [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Study on Mechanical Performance of Prestressed UHPFRC U‐Beam Bridges

Liu

Brühwiler

Cui

et al. 2021

Advances in Civil Engineering

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The forms of U-shaped UHPFRC beams have not been investigated for the highway footbridge. Compared with the traditional section forms, the U-shaped UHPFRC beams can reduce the material consumption under the condition of providing the same bearing capacity. Furthermore, prestressed U-shaped UHPFRC beams are rarely reported in the existing research. This paper explores the flexural behavior of prestressed ultrahigh-performance fiber-reinforced concrete (UHPFRC) beam bridge having unique design and the material properties of prestressed reinforcement combined with UHPFRC. Based on the unique shape of the U beam, the flexural performance test of the full-scale model of the prestressed UHPFRC U beam is conducted. Then, the finite element model considering material nonlinearity and structural ductility is established using Midas FEA software. Finally, the failure mode, failure process, cracking moment, ultimate moment, and strain of the full-scale model are studied. The calculation formulas of the flexural capacity of UHPFRC U beam considering ductile failure are derived. The comparative analysis results show that the prestressed UHPFRC U beam has an excellent flexural performance. The bending failure of a U-shaped beam belongs to the group of ductile failures, which is characterized by the main crack along the central rib and the loading center, which is accompanied by multiple microcracks. The failure process can be divided into four stages: linear deformation, microcracks development, main cracks development, and bearing capacity decline. The incorporation of steel fiber and the interaction between UHPFRC and reinforcement can effectively reduce the development of cracks. The U-beam bending moment is 50–55% of the ultimate bending moment. In the UHPFRC bridge design, the deformation can be used as a control index, and material advantages of the UHPFRC can be used to a certain extent. The strain-hardening characteristics of the UHPFRC are obvious in the loading process. The finite element analysis results show that the maximum strain value appears at the central rib, followed by the transverse strain value of the bottom plate, while the minimum strain is the longitudinal strain value of the bottom plate. The deformation of the rib plate is the largest, and the strain of the other measuring points changes slowly. The farther away from the center the measurement point is, the slower its strain changes. Therefore, the load is mainly caused by the central rib and the loading center plate. With the increase in the deformation, the load on both sides continuously moves to the central rib along the plate surface. This study can provide a useful reference for theoretical analysis and design of prestressed U-UHPFRC bridges.

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Review of ultra-high performance concrete and its application in bridge engineering

Cited by 252 publications

References 79 publications

The Role of Supplementary Cementitious Materials (SCMs) in Ultra High Performance Concrete (UHPC): A Review

The Role of Supplementary Cementitious Materials (SCMs) in Ultra High Performance Concrete (UHPC): A Review

Elephant skin formation on UHPC surface: Effects of climatic condition and blast furnace slag content

Study on Mechanical Performance of Prestressed UHPFRC U‐Beam Bridges

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