Federal highway administration s ultrahigh performance concrete uhpc research and development program has produced a range of publications pertaining to the performance and use of uhpc. It permits the construction of both more slender and more durable concrete structures with a prolonged service life and thus improved sustainability. The material attributes are understood by studying the stress strain behaviour of uhpc. This photo shows the casting of fluid ultra high performance concrete uhpc from a wheelbarrow into the void space between the top flanges of two deckbulbtee prestressed concrete girders. Ultrahigh performance concrete uhpc walo usa walo usa.
Effect of design parameters on the blast response of ultra. This chapter discusses the rules that should be observed in order to produce uhpc with a compressive strength in the region of 150200 nmm 2. 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. Ultra high performance concrete uhpc publication of. A potential solution, suggested in a previous study, is to apply a thin layer of ultrahigh performance concrete uhpc on top of normal concrete nc bridge decks. The uhpc were designed using the linear packing density model. A study has been made through this investigation to understand the behavior of uhpc members with steel fibers by using two approaches. For the purposes of this document, uhpc is limited to concrete that. Ultra high performance concrete panels for prefabricated. In this study, for the first time, ultra high performance concrete uhpc is adopted to the posttensioning type of sleeper to prolong design life and reduce the maintenance of sleepers. Vacuum mixing technology to improve the mechanical. Ultra high performance concrete uhpc proceedings of the international symposium on ultra high performance concrete kassel, germany september 15, 2004 edited by.
Pci northeast and texas department of transportation. Ultra high performance concrete or uhpc, is a new metallic reinforced cementitiousbased material with extraordinary properties. It is not only ideal for traditional applications of regular concrete, but it also allows for new applications of concrete in areas such as contemporary design that involve thinner components or complex shapes. Experiments and simulations 1 introduction ultra high performance concretes uhpcs are cementitious composites characterized by high compressive strength, typically greater than 150 mpa 21. Within the last few decades, research has been conducted on what is known as ultra high performance concrete uhpc. Ultrahighperformance concrete and advanced manufacturing. This specification consists of supplying, mixing, transporting, placing, finishing, curing, and diamond grinding of ultra high performance concrete uhpc for use as a structural overlay and riding surface in accordance with the contract documents and as directed by the engineer. Uhpc solutions was developed to expand the use and. Ultrahigh performance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y. Uhpc is being considered for use in a wide variety of highway infrastructure applications. Ultra high performance concrete uhpc market growth. This report presents the development of ultra high performance concrete uhpc using locally available materials thatreduce construction costs compared with commercial products. Ultra high performance concrete concrete engineering.
Bridge deck rehabilitation with high performance concrete. Aoude 2 uhpc panels under larger charge weights of 100 kg of equivalent tnt at standoff distances of. Concrete bridge technology ultrahighperformance concrete. Standard practice for fabricating and testing specimens of. The relatively high initial cost of uhpc has restricted its wider. Definition ultrahigh performance concrete uhpc, also. 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. A costeffective, nonproprietary uhpc mix or mixes for use in bridge element connections during accelerated bridge construction abc under arizona conditions. The material provides compressive strengths up to 29,000 psi and flexural strengths up to 7,000 psi pca, 2017. This emerging technology report gives an overview of ultrahigh performance concrete. Research, development and application in europe michael schmidt and ekkehard fehling synopsis. Ultra high performance concrete uhpc pdf book manual.
Hemrick oak ridge national lab maria guimaraes electrical power research institute project monitoring team. The rebar can be seen extending from the girders into the void. Effect of design parameters on the blast response of ultrahigh performance concrete columns s. Current status and introduction june 2017 nysdot uhpc workshop 1 ultrahigh performance concrete. Concrete is the most widely used material in building construction. The methodology to develop such mix has been explained. This technological breakthrough offers new competitive solutions for engineers and construction contractors. Ultra high performance concrete pathway to commercialization. Fhwa uhpc is a cementitious composite material composed of an optimized gradation of granular constituents, a watertocementitious materials ratio less than 0. In concrete technology, there is a highly remarkable type of concrete named ultrahigh performance concrete uhpc. The term includes a broad range of materials such as defectfree, dense particle, engineered composite, multiscale particle, and fiberreinforced cementitious.
Flexural performance of fiberreinforced concrete4 shows much higher tensile strengths and greater ductility for ultra high performance concrete uhpc than for conventional concrete cc. Ultrahigh performance concrete uhpc is an advanced construction material that affords new opportunities for the future of the highway infrastructure. 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. Its impact resistance qualities freeze thaw, durability, and low maintenance make it an excellent alternative to traditional materials and an obvious choice for site furnishings. Workers are placing ultrahigh performance concrete uhpc on a bridge deck for the iowa department of transportation. Pdf ultra high performance concrete uhpc hai hoang. Ductal, an ultra high performance concrete is over 6 times stronger than traditional concrete and performs exceptionally well in demanding conditions. A potential solution, suggested in a previous study, is to apply a thin layer of ultra high performance concrete uhpc on top of normal concrete nc bridge decks.
Electronic pdf the global ultrahigh performance concrete market is expected to reach usd 1. Ductal is a fibrous, ultrahigh performance concrete uhpc for rainscreen cladding solutions and custom built applications like facades, roofs, sunshading or brise soleil. Ultrahigh performance concrete uhpc is a new class of concrete that is exceptionally strong and durable. Bridge deck rehabilitation with high performance concrete uhpc. Increasing demand from the construction industry is expected to favor the market growth ultrahigh performance concrete uhpc is an advanced cementitious material with the potential to be a viable. Review of the cementbased composite ultrahighperformance. Ultrahigh performance concrete or uhpc, is a new metallic reinforced cementitiousbased material with extraordinary properties. Level of compressive strength after 90 days reaching 150 mpa had been obtained with a lower dose of cement 700 kgm3 and with the use of secondary raw. Use of ultrahighperformance concrete for bridge deck. 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.
Researchers all over the world have tried to explore the boundaries of uhpc and made useful contributions to improve this concrete. In order to make uhpc structures more ductile and costeffective. Ultra high performance concrete uhpc is a new class of concrete that has been developed in recent decades for its exceptional properties of strength and durability. For the purposes of this document, uhpc is limited to concrete that has a minimum specified compressive strength of 22,000. How do we gain benefits of ultrahigh performance concrete uhpc in arizona bridge projects without the high cost of proprietary mixes. Ultrahigh performance concrete publications ultrahigh. This video highlights the mechanical and durability properties. Over the last twenty years, remarkable advances have taken place in the research and application of ultrahigh 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. Ultrahighperformance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y. Ultra high performance concrete panels for prefabricated wall assemblies kevin gannon, ra director, program development, taktl llc abstract architectural ultrahigh performance concrete in thin cladding panels has been established as highly suitable material for high performance back ventilated and drained cavity wall facades. 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. Performance on high national precast concrete association. Ultrahigh performance concrete for construction pros. The materials combination of superior properties facilitates the ability to design thin, complex shapes, curvatures and highly customized textures applications which.
Structural design of the uhpc wall is carried out on the basis of taking benefits from revolutionary. This high performance concrete can be utilized in structural rehabilitation and accelerated bridge construction in addition to several other applications. Uhpc can be used in a variety of bridge solutions to include joint fills, overlays, pier jacketing and a variety of rehabilitation and other innovative applications. Inherent advantages and the global growth of uhpc in the construction industry are expected to benefit the market over the forecast period. Ultrahigh performance concrete has a discontinuous pore structure that reduces liquid ingress, significantly enhancing durability compared to conventional and high performance concretes. Pdf ultra high performance concrete uhpc hai hoang viet. Major factors driving the market studied are the increasing need for chemical and corrosion resistant construction material. This innovative material produces concrete elements that are up to 10 times stronger than conventional concrete. The design and construction of a precast ultrahigh performance concrete uhpc cantilever retaining wall hereafter referred to as the uhpc wall is reported in this study. Ultrahigh performance concrete uhpc is a steel fiberreinforced, cementbased composite material used to create stronger and longerlasting connections between prefabricated bridge elements pbe. Standard sections for a next d and b texas doubletee beams. 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. Ultra high performance concrete uhpc market industry.
In concrete technology, there is a highly remarkable type of concrete named ultra high performance concrete uhpc. Behavior of ultra high performance concrete at early age. Over the last twenty years, remarkable advances have taken place in the research and application of ultrahigh performance concrete uhpc, which exhibits excellent rheological behaviors that. According to the portland cement association, uhpc is a highstrength, highly durable, ductile material formulated by combining portland cement, silica fume, quartz flour, fine silica sand, highrange water reducer, water and steel or organic fibers. The ultrahigh performance fiberreinforced concrete uhpc product line ductal has expanded with a new formula that is applied by spraying on vertical walls, vaults and complex structures.
Ultra high performance concrete uhpc is a milestone in concrete technology and application. Ultrahigh performance concrete publications federal highway administration s ultrahigh performance concrete uhpc research and development program has produced a range of publications pertaining to the performance and use of uhpc. Fieldcast uhpc can simplify connection details and ease constructability. After 7 days, the uhpc compressive strength exceeded 120 mpa. Apr 18, 2017 engineers are using ultra high performance concrete, or uhpc, to design bridges that are more constructible, durable, and resilient. Uhpc 101 ben graybeal, fhwa february 2017 what is ultrahigh performance concrete.
Team leader bridge engineering research federal highway administration 2024933122 benjamin. Aug 29, 2014 ultra high performance concrete uhpc is a milestone in concrete technology and application. Fine concrete, llc is one of a select group of firms in the united states holding a sublicense to design and fabricate with ductal, an ultra high performance concrete. Direct biaxial behavior of ultrahighperformance concrete. The design and construction of a precast ultra high performance concrete uhpc cantilever retaining wall hereafter referred to as the uhpc wall is reported in this study.
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. 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. Keywords vacuum mixing uhpc air content mechanical properties 1 introduction during the last decades, the interest in ultrahigh performance concrete uhpc has grown signi. Performance of grouted connections for prefabricated bridge deck elements. Ultra high performance concrete uhpc is promising in construction of concrete structures that suffer impact and explosive loads. The material properties, mix design and curing regime are determined. Uhpc is a class of concrete defined by its exceptionally high flexural and compressive strength. 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. Ultrahigh performance concrete portland cement association. The solution for these performance needs is often ultra high performance concrete. Ultrahigh performance concrete uhpc, is a highstrength, ductile material formulated by combining portland cement, silica fume, quartz flour, fine silica sand, highrange water reducer, water, and steel or organic fibers. Flexural performance of fiberreinforced concrete4 shows much higher tensile strengths and greater ductility for ultrahigh performance concrete uhpc than for conventional concrete cc. Ultrahigh 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. 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.
Design and construction of a precast ultrahigh performance. The global ultrahigh performance concrete uhpc market size was valued at usd 892. It briefly introduces the production of these concretes, their properties, design principles for their use, and example applications. Ultrahigh 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.
With the aim of achieving a specified compressive strength of 20 ksi, a uhpc mixture is formulated. One of the breakthroughs in concrete technology is ultrahigh performance concrete with a steel like compressive strength of up to 250 nmm2 and a remarkable increase in durability compared even with high performance concrete. Just like normal strength concrete nsc, uhpc is composed of the same standard materials like cement, aggregate, mineral admixture, chemical admixture, and water. 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. 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 experimental work presented in this article examines the possibility of lowering the economic cost of uhpc. Increasing demand from the construction industry is expected to favor the market growth. Development of ultra high performance concrete using fly. Ultrahigh performance concrete uhpc is promising in construction of concrete structures that suffer impact and explosive loads. 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. The market for ultra high performance concrete uhpc is expected to register a cagr of over 7% during the forecast period. Pdf mechanical properties of ultra high performance. Both structural and material performance of railway sleepers are critical to ensure the safety of railway track structures. Ultrahigh performance concrete uhpc is known for its high.
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