ultrahigh performance concrete in geotechnical and

Ultra-High Performance Concrete in Geotechnical and ...

ultra–high performance concrete (UHPC) in geotechnical applications † Evaluate the behavior of UHPC piles using large-scale tests and analytical procedures Problem Statement In 2005, the American Association of State Highway Transportation Offi cials (AASHTO) issued seven “grand challenges” for a strategic bridge engineering plan.

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Ultra-High Performance Concrete in Geotechnical and ...

foundation applications makes the AASHTO objective of 75 years service life achievable. Ultra High Performance Concrete (UHPC) with compressive strength of 180 MPa (26,000 psi) and excellent durability has been used in superstructure applications but not in geotechnical

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Ultra-High Performance Concrete for Concrete Repair and ...

Ultra-high performance concrete (UHPC) is a super-dense cementitious material with a high volume of fibers, and has many beneficial mechanical and durability properties. It is virtually impermeable and the fibers keep cracks tight. The strength gain is rapid which means the structure can be put back into service shortly after placement.

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Investigation of Ultra-High Performance Concrete for ...

Investigation of Ultra-High Performance Concrete for Longitudinal Joints in Deck Bulb Tee Bridge Girders July 23, 2018 trac In recent decades, many state departments of transportation have used ultra-high performance concrete (UHPC) in bridge construction because of

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Design and Performance Verification of Ultra-High ...

Design and Performance Verification of UHPC Piles for Deep Foundations ; Use of Ultra-High Performance Concrete in Geotechnical and Substructure Applications ; Creators: Voort, T. Vande ; Suleiman, Muhannad T. ; Sritharan, Sri ;

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Ultra-High Performance Concrete for Concrete Repair and ...

Ultra-high performance concrete (UHPC) is a super-dense cementitious material with a high volume of fibers, and has many beneficial mechanical and durability properties. It is virtually impermeable and the fibers keep cracks tight. The strength gain is rapid which means the structure can be put back into service shortly after placement.

get price

ERDC/GSL TR-15-22 'Impact of Steel Fiber Size and Shape on ...

Ultra-high performance concrete (UHPC) is a family of materials that typically exhibit compressive strengths in excess of 21,000 psi (150 MPa) and high durability due to negligible interconnected porosity. High toughness is achieved with the addition of fiber reinforcement. UHPC formulations generally consist of a high cementitious content

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Ultra-High Performance Concrete

Ultra-High Performance Concrete (UHPC) is a cementitious, concrete material that has a minimum specified compressive strength of 17,000 pounds per square inch (120 MPa) with specified durability, tensile ductility and toughness requirements; fibers are generally included in the mixture to achieve specified requirements.

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Investigation of Ultra-High Performance Concrete for ...

Investigation of Ultra-High Performance Concrete for Longitudinal Joints in Deck Bulb Tee Bridge Girders July 23, 2018 trac In recent decades, many state departments of transportation have used ultra-high performance concrete (UHPC) in bridge construction because of

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Ultra-high-Performance Concrete: Characteristics, and ...

Ultra-high-performance concrete (UHPC) is defined as ‘concrete that has a minimum specified compressive strength of 150 MPa with specified durability tensile ductility and tough­ness requirements; fibers are generally included to achieve specified requirements”, as per ACI 239R-18. Commonly, the UHPC consists of cement, silica fume, fine ...

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Behavior of Driven Ultrahigh-Performance Concrete H-Piles ...

In the United States, an estimated $1 billion is spent annually on repair and replacement of deep foundations. In a recent study, the possibility of using ultrahigh-performance concrete (UHPC) for ...

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Development of Hybrid Ultra-High Performance Concrete ...

In recent years, ultra-high performance concrete (UHPC) has become a material of interest for structures needing resistance to impact and blast loadings. These types of loadings have induced brittle flexural failure in UHPC due to punching shear from the impactor. One way to improve the impact

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Design and Construction of a Precast Ultra-High ...

Precast cantilever retaining wall, Ultra-high performance concrete, CO. 2. emissions, embodied energy, global warming potential, Eurocode 7,Eurocode 2,Structural performance, Environmental performance, Material sustainability. 1. Introduction . Significant advances in the field of concrete technology have been demonstrated over the past two ...

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ERDC/GSL TR-18-31 'Mechanical behavior of Cor-Tuf ultra ...

In recent years, ultra-high performance concrete (UHPC) has been studied from many perspectives including flexural and tensile properties (Roth 2008), fiber size and shape (Scott et al. 2015), and nanomechanical analysis of calcium-silicate-hydrate (Chandler et al. 2012). However,

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Investigation of Alkali-Silica Reactivity in Sustainable ...

May 20, 2021  Author(s) Safeer Abbas 1,Wasim Abbass, Moncef L. NehdiA li Ahmed and Muhammad Yousaf Abstract Considering its superior engineering properties, ultrahigh performance concrete (UHPC) has emerged as a strong contender to replace normal strength concrete (NSC) in diverse construction applications. While the mechanical properties of UHPC have been thoroughly explored,

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Sri Sritharan - Research

Use of Ultra-High Performance Concrete in Geotechnical and Substructure Applications; Evaluation of a Prestressed Concrete Bridge Constructed using Ultra High-Performance Concrete; Use of Ultra-High Performance Concrete in Geotechnical and Sub-structure Applications (TR-558)

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Influence of steel fiber size, shape, and strength on the ...

/ Influence of steel fiber size, shape, and strength on the quasi-static properties of ultra-high performance concrete : Experimental investigation and numerical modeling. In: Construction and Building Materials. 2021 ; Vol. 296.

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New Energy Dissipation Mechanisms for Steel Fiber ...

Sep 27, 2019  This research focused on improving ultra high-performance concrete (UHPC) toughness through the addition of annealed plain carbon steel fibers and stainless steel fibers that both exhibit increased ductility and strain hardening compared with conventional steel fibers used for concrete reinforcement. Implementing optimized heat treatments and ...

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Ultra-High Performance Concrete for Concrete Repair and ...

Ultra-high performance concrete (UHPC) is a super-dense cementitious material with a high volume of fibers, and has many beneficial mechanical and durability properties. It is virtually impermeable and the fibers keep cracks tight. The strength gain is rapid which means the structure can be put back into service shortly after placement.

get price

ERDC/GSL TR-15-22 'Impact of Steel Fiber Size and Shape on ...

Ultra-high performance concrete (UHPC) is a family of materials that typically exhibit compressive strengths in excess of 21,000 psi (150 MPa) and high durability due to negligible interconnected porosity. High toughness is achieved with the addition of fiber reinforcement. UHPC formulations generally consist of a high cementitious content

get price

Ultra-High Performance Concrete: [technote]

Advances in the science of concrete materials have led to the development of a new class of cementitious composites, namely ultra-high performance concrete (UHPC). The mechanical and durability properties of UHPC make it an ideal candidate for use in developing new solutions to pressing concerns about highway infrastructure deterioration ...

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Design and Performance Verification of Ultra-High ...

Ultra High Performance Concrete (UHPC) with compressive strength of 180 MPa (26,000 psi) and excellent durability has been used in superstructure applications but not in geotechnical and foundation applications. This study explores the use of precast, prestressed UHPC piles in future foundations of bridges and other structures.

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Development of Hybrid Ultra-High Performance Concrete ...

In recent years, ultra-high performance concrete (UHPC) has become a material of interest for structures needing resistance to impact and blast loadings. These types of loadings have induced brittle flexural failure in UHPC due to punching shear from the impactor. One way to improve the impact

get price

Ultra High Performance Concrete History and Usage by the ...

Nov 19, 2014  The U.S. Army Engineer Research and Development Center (ERDC) has conducted research on ultra-high performance concretes (UHPCs) since the late 1980 s. The primary focus has been on military and civil works infrastructure applications. The research included the development of a UHPC material called Cor-Tuf Baseline, which includes several ...

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(PDF) Ultra-High Performance Concrete: A State-of-the-Art ...

Ultra-High Performance Concrete: A State-of-the-Art Report for the Bridge Community. Emmanuel Chinaka. Boban Blagojevic. Benjamin Graybeal. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

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Ultra-High-Performance Concrete - Civil Engineering ...

Apr 14, 2019  Ultra-high-performance concrete (UHPC) was first introduced as reactive powder concrete (RPC) in the early 1990s by employees of the French contractor Bouygues. When introduced, it came in two classes: Class 200 MPa (29 ksi) and 800 MPa (116 ksi). In the U.S., several state departments of transportation have expressed interest in introducing ...

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[PDF] Development Of Ultra High Performance Concrete ...

Apr 02, 2018  Ultra High Performance Concrete and High Performance Construction Materials Book Description : With HiPerMat 5 on March 11-13, 2020 the 5th International Symposium on Ultra-High Performance Concrete and High Performance Construction Materials documents the actual state of development of application in the fields of: Material Science and Development, Composite Concrete

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Performance Concrete - an overview ScienceDirect Topics

1.2 Ultrahigh-performance concrete. UHPC refers to a highly dense concrete with very high mechanical properties and durability which is composed of course, fine, and microfine aggregate and high amount of cement (900–1000 kg/m 3) at lower w/c ratio (0.14–0.20) [6].

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Design and Construction of a Precast Ultra-High ...

Precast cantilever retaining wall, Ultra-high performance concrete, CO. 2. emissions, embodied energy, global warming potential, Eurocode 7,Eurocode 2,Structural performance, Environmental performance, Material sustainability. 1. Introduction . Significant advances in the field of concrete technology have been demonstrated over the past two ...

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Ultra-High Performance Concrete Used as a Coating

Ultra-high performance concrete (UHPC) is defined as concrete with a compressive strength greater than 21.7 ksi (150 MPa), an optimized gradation of granular constituents (including silica fume and other fine particles), a water to

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Investigation of Ultra-High Performance Concrete for ...

Investigation of Ultra-High Performance Concrete for Longitudinal Joints in Deck Bulb Tee Bridge Girders July 23, 2018 trac In recent decades, many state departments of transportation have used ultra-high performance concrete (UHPC) in bridge construction because of

get price

Structural and Materials Engineering

The Structural and Materials Engineering Group brings together a unique mix of experimental and computational modeling expertise over a wide range of scales to find solutions to these challenges. In reaching these goals, the Group relies on state-of-the-art computational simulation facilities as well as some of the nation’s most versatile and ...

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