Structures design office ultra high performance concrete. Uhpc is a class of concrete defined by its exceptionally high flexural and compressive strength. Ultra high performance concrete uhpc is a milestone in concrete technology and application. Ultra high performance concrete uhpc is a promising new class of concrete material that is likely to make a significant contribution to addressing the challenges associated with the load.
A study has been made through this investigation to understand the behavior of uhpc members with steel fibers by using two approaches. One of the breakthroughs in concrete technology is ultrahighperformance concrete with a steel like compressive strength of up to 250 nmm2 and a remarkable increase in durability compared even with highperformance. Compared to conventional concrete, it has superior mechanical strength, durability and impact resistance. It briefly introduces the production of these concretes, their properties, design principles for their use, and example applications. Vacuum mixing technology to improve the mechanical. This paper will give an overview of uhpc ultrahigh performance concrete and hpc high performance concrete focusing on its fundamental introduction. Ultra high performance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y. Selfconsolidating characteristics desired for smr modular construction facilitate rapid construction of steel plateconcrete sc beams and walls thinner and lighter modules. Petitjean, design and construction of the world first ultrahigh performance concrete road bridges, in. Performing organization name and address department of civil engineering university of nebraskalincoln. Anyone using the documents provided in the links below should comply with the terms and conditions established by the authorjournals. Ultrahigh performance concrete fhwa us department of. Development of nonproprietary ultrahigh performance. Design and evaluation of a singlespan bridge using ultra.
Proceeding of the international symposium on ultra high performance concrete, university of kassel, kassel, 2004, pp. The compressive strength of highperformance concrete and. In the past decade significant advances have been made in the field of high performance concretes hpc. Evaluation of ultrahighperformance fiberreinforced concrete celik ozyildirim, ph. Ultrahigh performance concrete research papers academia. The term ultrahigh performance concrete uhpc refers to a relatively new. Standard practice for fabricating and testing specimens of. Over the last twenty years, remarkable advances have taken place in the research and application of ultra high performance concrete uhpc, which exhibits outstanding mechanical properties and.
In this paper we propose a model to evaluate the compressive. Introduction ultra high performance fibre concretes uhpfc are a class of cementitious composites made of a strong and compact powderbased matrix and of steel or synthetic fibres as a. Both the fhwa and fdot support the use of accelerated project delivery techniques such as uhpc and prefabricated bridge elements and systems pbes as an economical. Evaluation of ultra high performance fiberreinforced concrete celik ozyildirim, ph. Ultrahigh performance fiber reinforced concrete uhpfc is a new class of materials that combine a very strong and dense cementicious matrix with a high fiber content. Uhpfc, reinforcement, structural element, tension, tests. Ultra high performance concrete uhpc is an advanced cementitious composite material which has been developed in recent decades. Ultra high performance concretes recent realizations and research programs on uhpfrc bridges in france. Ultrahigh performance concrete portland cement association. Development of ultra high performance concrete against blasts. Ultra high performance concrete uhpc is an advanced construction material that affords new opportunities for.
Architectural ultra high performance concrete the next generation of concrete technology is changing what is possible for architecture, engineering and construction professionals. Development of an intumescent fire protection coating for ultrahigh performance concrete uhpc ultrahigh performance concrete uhpc is a very densely textured concrete with a compression strength similar to steel at up to 250 nmm. Uhpc 101 ben graybeal, fhwa february 2017 what is ultra high performance concrete. The federal highway administration has been engaged in research on the optimal uses of uhpc in the highway bridge infrastructure since 2001 through its bridge of the future initiative. When compared to more conventional cementbased concrete materials, uhpc tends to exhibit superior properties such as increased durability, strength, and longterm stability. Uhpc is characterized by being a steel fibrereinforced cement composite material with compressive strengths in excess of 150 mpa, up to and possibly exceeding 250 mpa. The mechanical and durability properties of uhpc make it an ideal candidate for use in developing new solutions to pressing concerns about highway. Although high compressive strength of concrete can be achieved, the. Engineered to meet specific needs, high performance concrete hpc is often used for bridge applications including.
The material properties, mix design and curing regime are determined. Ultrahigh performance concrete uhpc is an advanced construction material that affords new opportunities for the future of the highway infrastructure. Pdf files can be viewed with the acrobat reader foreword ultrahigh performance concrete uhpc is an advanced construction material that affords new opportunities for the future of the highway infrastructure. Ultrahighperformance fiberreinforced concrete topic. National precast concrete association 3 introduction a s a material on the leading edge of concrete innovation, ultra high performance concrete uhpc provides a new technology to expand a precasters business with new products and solutions. Uhpc is a relatively new generation of cementitious material with very high strength, ductility and durability 7. Uhpc was first developed in the early 1980s and since then has been used for applications needing exceptional strength and durability like nuclear power plants, thinprofile bridges, structural beams and seawall anchor plates. The bevel bench features two mirrored castings, joined at the bench spine. A research program is conducted to evaluate the mechanical properties of ultra high performance concrete, target compressive strength at the age of 28 days being more than 150 mpa. The material attributes are understood by studying the stress strain behaviour of uhpc. The term ultra high performance concrete uhpc refers to a relatively new class of advanced cementitious composite materials whose mechanical and durability properties far surpass those of conventional concrete. Ultra high performance concrete free download as powerpoint presentation. Introduction to concrete portland cement association.
View ultrahigh performance concrete research papers on academia. From materials to structures presents a detailed overview of uhpc development and its related applications in an era of rising terrorism around the world. A uhpc ultra high performance concrete presentation projects. Jun 28, 2016 ultra high performance concrete uhpc is a novel construction material exhibiting enhanced mechanical and durability properties, which can lead to economical construction through reducing the crosssections of structural members with associated materials savings and lower installation and labor costs tang 2004. Department of transportation federal highway administration virginia center for transportation innovation and research a partnership of the virginia department of transportation. Uhpc is being considered for use in a wide variety of highway infrastructure applications. Proportion and evaluation of ultrahigh performance. Ultra high performance concrete introduction 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. A uhpc ultra high performance concrete presentation. Aci documents are requested to contact aci via the errata website at. Mucem marseille, france s z o l y d d e v e l o p m e n t c o r p tu r n i n g y o u r v i s i o n i n t o c o n c r e t e r e a l i t y 250. The mechanical and durability properties of uhpc make it an ideal candidate for use in developing. With the aim of achieving a specified compressive strength of 20 ksi, a uhpc mixture is formulated. Ultra high performance concrete uhpc, along with parametric modeling, rapid prototyping, cnc fabrication, and automated manufacturing.
Ultra high performance concrete uhpc is a novel construction material exhibiting enhanced mechanical and durability properties, which can lead to economical construction through reducing the crosssections of structural members with associated materials savings and lower installation and labor costs tang 2004. Largescale 3d printing of ultrahigh performance concrete. Ultra high performance concrete uhpc is part of fhwas every day counts intended to highlight some advantages of accelerated project delivery and longterm durability minimizing repairs and future disruption to traffic. Performance of ultrahigh performance concrete self. Pdf ultrahigh performance concrete material properties. Interdisciplinary work involving materials science, computation, robotics, architecture and design resulted in the development of an innovative way of 3d printing cementitious materials. Ultra high performance concrete optimization of doubletee bridge beams ultra high performance concrete uhpc was first introduced as reactive powder concrete in the early 1990s by employees of the french contractor bouygues. Ultra high performance concrete 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. Ultrahighperformance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y. Pdf over the last twenty years, remarkable advances have taken place in the research and application of ultrahigh performance. Ultrahighperformance concrete and advanced manufacturing.
First use of ultrahigh performance concrete for an innovative train station canopy by v. Ultra high performance concrete the construction material of choice of the 21st. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Selfconsolidating ultrahigh performance concrete uhpc a new type of uhpc which features a compressive strength higher than 150 mpa. This practice is applicable to uhpc with a specified compressive strength of at least 120 mpa 17 000 psi, with nominal maximum size aggregate of less. Hemrick oak ridge national lab maria guimaraes electrical power research institute project monitoring team. Application of ultra high performance concrete to bridge girders 5.
Research presented herein describes an application of a newly developed material called ultra high performance concrete uhpc to a singlespan bridge. Shawnessy light rail transit station, calgary, canada. Concrete is the most widely used material in building construction. The compressive strength of silica fume concretes was investigated at low watercementitious materials ratios with a naphthalene sulphonate superplasticizer. Evaluation of ultrahighperformance fiberreinforced concrete. Fire protection coating for ultrahigh performance concrete. A thin reveal between the two lightens the look and allows for compact shipping and easy assembly. Pier specimens were constructed with the same configuration, except that the segment of the column right above the precast foundation had varying material and design details. Principal research scientist in cooperation with the u. Ultra high performance concrete ultra high performance concrete accidentally discovered when they added recycled, milled glass.
Publishers pdf, also known as version of record includes final page. Within the last few decades, research has been conducted on what is known as ultra high performance concrete uhpc. The term includes a broad range of materials such as defectfree, dense particle, engineered composite, multiscale particle, and fiberreinforced cementitious. Ultra high performance concrete pathway to commercialization.
Mix design and performance evaluation of ultrahigh. Pdf development of ultrahigh performance concrete with locally. The results show that partial cement replacement up to 20% produce, higher compressive strengths than control concretes, nevertheless the strength gain is less than 15%. This report presents the development of ultra high performance concrete uhpc using locally available materials thatreduce construction costs compared with commercial products. Uhpc 101 ben graybeal, fhwa february 2017 what is ultrahigh performance concrete. Introduction it is important to note the high strength and highperformance concrete are not synonymous. This document is a technical summary of the unpublished federal highway administration fhwa report, development of nonproprietary ultrahigh performance concrete for use in the highway bridge sector, available through the national technical information service at. I came across this article talking about concrete being supplemented with milled glass being much stronger and more dense. The professional using this document should understand the limitations of this document and exercise judgment as to the appropriate application of this emerging technology.
Development of ultrahigh performance concrete against blasts. The relatively high initial cost of uhpc has restricted its wider. Ultrahighperformance concrete american concrete institute. Ultra high performance concrete uhpc is a class of advanced cementitious materials with greater strength, tensile ductility, and durability properties when compared to conventional or even high performance concrete. Practice oriented papers and articles on ultra high performance fiberreinforced concrete shear capacity of ultra high performance concrete igirders with orthogonal welded wire reinforcement. Fhwa uhpc is a cementitious composite material composed of an optimized gradation of granular constituents, a water. Ultrahighperformance concrete uhpc is a class of advanced cementitious materials with greater strength, tensile ductility, and durability properties when compared to conventional or even highperformance concrete. Development of sustainable protective ultrahigh performance fibre reinforced concrete uhpfrc design, assessment and modeling. The mixing efficiency and mixing performance depends on. When setting up the batch plant for uhpc at a precast facility, the introduction of raw materials into the mixer must be considered. The next generation of concrete, ultra high performance concrete uhpc, exhibits exceptional strength and durability characteristics that make it well suited for use in highway bridge structures. Over the last twenty years, remarkable advances have taken place in the research and application of ultra high. Ultra high performance concrete uhpc is a relatively new building material, which has been fabricated since 1990s.
Ultrahigh performance concrete uhpc is a cementitious, concrete material that has a minimum specified compressive strength of 17,000 pounds per square. Ultra high performance concrete is a new type of concrete that is being developed by agencies concerned with infrastructure protection. Chapters present case studies on the novel development of the new generation of uhpc with nano additives. The low watertobinder ratio wb, high binder content, the use of steel fibers, and the absence of coarse aggregate make uhpc significantly different from conventional concrete in both the. Ultra high performance concrete uhpc is an advanced construction material that affords new opportunities for the future of the highway infrastructure. Ultra high performance concrete concrete engineering. This emerging technology report gives an overview of ultra high performance concrete. Ultra high performance concrete uhpc is a new class of concrete that has superior flowability, as well as mechanical and durability properties. Vacuum mixing technology to improve the mechanical properties of ultrahigh performance concrete j. Flexural strength of fibrous ultra high performance reinforced concrete beams wasan i. Research, development and application in europe michael schmidt and ekkehard fehling synopsis.
The methodology to develop such mix has been explained. The comprehensive work carried out addresses the development of paste, mortar, and concrete mixtures based on theoretical, analytical, and experimental optimization of particle packing at multiple scales, cement chemistry of. First use of ultrahigh performance concrete for an. Pdf mechanical properties of ultra high performance. Tensl ultra high performance concrete uhpc construction provides exceptional strength and durability. A costeffective, nonproprietary uhpc mix or mixes for use in bridge element connections during accelerated bridge construction abc under arizona conditions. Influence of key design parameters of ultrahigh performance fibre. The two primary objectives of this research were to develop a shear design procedure for possible code adoption and to provide a performance evaluation to ensure the viability of the first uhpc bridge in the united states. This innovative material produces concrete elements that are up to 10 times stronger than conventional concrete. The ultra high performance concrete uhpc is a new type of concrete that has developed in recent years, and the emerging of ultra high performance concrete became popular in the construction.
For the purposes of this document, uhpc is limited to concrete that has a minimum specified compressive strength of 22,000. How to make ultra high performance concrete hunker. Feb 09, 2017 a uhpc ultra high performance concrete presentation projects. Concrete technology today is now available on the internet at continued on page 2 figure 1 above. Ultra high performance concrete has a discontinuous pore structure that reduces liquid ingress, significantly enhancing durability compared to conventional and high performance concretes. Isbn 9783433030417 ultrahigh performance concrete uhpc fundamentals design examples ekkehard fehling, michael schmidt, joost walraven, torsten leutbecher, susanne frohlich the wind energy industry in germany has an excellent global standing when it. Over the last twenty years, remarkable advances have taken place in the research and application of ultra high performance concrete uhpc, which exhibits excellent rheological behaviors that include workability, selfplacing and selfdensifying properties, improved in mechanical and durability performance with very high compressive strength, and nonbrittleness behavior. It permits the construction of both more slender and more durable concrete structures with a prolonged service life and thus improved sustainability. In the present paper a new additive manufacturing processing route is introduced for ultra high performance concrete. This instantly reminded me of what creto deep penetrating sealer dps. First use of ultra high performance concrete for an innovative train station canopy by v. Engineering application of ultra high performance concrete in bridges uhpc is an advanced class of cementitious composite material composed of an optimized gradation of granular constituents, with a waterto cementitious materials ratio less than 0.