In some instancesssuch as when concrete can obtain high early strength. Development of high performance concrete and evaluation of. For instance, cement with low c3a is the most desired type of cement to produce highperformance concrete because the c3a creates incompatibility of cement with a. The mechanical and durability properties of uhpc make it. High performance concrete is an engineered concrete obtained through a careful selection and proportioning of its constituents.
High performance concrete hpc is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. In case of any doubt about the proper maintenance procedure, please contact id created, inc. Role of silica fume in high performance concrete venue high performance concrete hpc has many definitions but the most commonly accepted one is that given by the american concrete institute, which states. Hemrick oak ridge national lab maria guimaraes electrical power research institute project monitoring team. Principal research scientist in cooperation with the u. Concrete is the most widely used material in building construction. High performance concrete american concrete institute. In this context, it is natural that high performance concrete hpc will soon gain a mainstream appeal, especially in fast developing nations like india. High earlystrength concrete, also called fasttrack concrete, achieves its specified strength at an earlier age than normal concrete. Mechanical behavior of highperformance concrete under thermal. This page contains high performance concrete seminar and ppt with pdf report. Highperformance concrete and ultrahighperformance hindawi.
Particularly, uhpc has compressive and postcracking tensile strengths of around 20 ksi and 0. As per american concrete institute aci definition, hpc is a concrete meeting special combinations of performance and uniformity. Highperformance concrete hpc is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. The concrete used some advantages of selfcompacting concrete, and sprayed concrete, for optimisation of the mix proportions to suit the innovative process. Explore high performance concrete with free download of seminar report and ppt in pdf and doc format. Highperformance concrete hpc exceeds the properties. Workability characteristics of the fresh concrete are analyzed and hardened concrete properties tested in this research are compressive strength, chloride ion permeability, and creep and drying shrinkage properties. High performance concrete and its applications in the. High performance concrete 1st edition pierreclaude. Development, characterization and applications of a non. Ultrahighperformance concrete and advanced manufacturing. The virginia department of transportation built a highperformance concrete hpc bridge in richlands.
A study has been made through this investigation to understand the behavior of uhpc members with steel fibers by using two approaches. Category of high minimum maximum water minimum frost performance concrete compressive strength cement ratio durability factor veryearlystrengthves option a 2,000 psi 14 mpa 0. This particular class of concrete was developed with the goal of solving the structural problems inherent with todays typical concrete, such as its tendency to fail in a brittle manner. High performance concrete hpc has many definitions but the most commonly accepted one is that given by the american concrete institute, which states. Ultrahigh performance concrete uhpc is a new class of cementitious materials that have exceptional mechanical and durability. Ductility in case of high performance concrete can be improved by applying a confining pressure on hpc. High performance concrete seminar ppt with pdf report. While all highstrength concrete is also highperformance, not all highperformance concrete is highstrength. View ultrahigh performance concrete research papers on academia. Hardened properties of highperformance printing concrete. It is suggested that high performance concrete is not fundamentally different from the concrete used in the past, although it usually contains fly ash, ground granulated blastfurnace slag and silica fume, as well as superplasticizer. Highperformance fiberreinforced cementitious composites.
High performance concrete hpc has been defined as concrete that which possesses high workability, high strength. Concrete is a material widely used in most buildings and structures all over the world, which has the largest annual consumption among various engineering materials. High performance concrete hpc it is very important to follow the manufacturers care and maintenance guide to retain your products warranty. 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%. Development of an optimal highperformance concrete. Mechanical properties of ultrahigh performance concrete. The time period in which a specified strength should be achieved may range from a few 300 design and control of concrete mixtures eb001 table 171. The cost aspects of the use of silica fume are considered. It can mean excellent workability in the fresh state like selfleveling concrete or low heat of hydration in case of mass concrete, or very rigid setting and hardening of concrete in case of sprayed concrete or quick repair of roads and airfields, or very low imperviousness of storage vessels, or very low leakage. Since rheological parameters and compressive strength are fundamental properties of concrete in two different stages of production, the correlation between rheological parameters and compressive strength has been used instead of using watercement ratio versus compressive strength relationship. Highperformance concrete masonry will hpcmus can reduce costs while adding value to all building phases. A pdf file on high performance concrete giving full details about high performance concrete, their use,advantages,disadvantages,strength.
Ultrahigh performance concrete research papers academia. Hpcmus are designed to increase job site productivity while providing superior structural performance, design flexibility i and ongoing energy savings. Pdf high performance concrete by pierreclaude aitcin. A mix design procedure for highperformance concrete mixes has been presented in this paper. Chemical and physical properties of cement can help in selecting desired cement to produce high performance concrete. In this paper we propose a model to evaluate the compressive.
High performance concrete is concrete that meets special performance and uniformity requirements that cannot always be achieved. The concrete printing process and the fresh properties of the concrete, including the. Hpc mixtures are composed of essentially the same materials as conventional concrete mixtures, but the proportions are designed, or engineered, to provide the strength and durability needed for the structural and environmental requirements of the. Aci american concrete institute has defined hpc as a concrete in which certain characteristics are developed for a particular application and environment. A mix design procedure for high performance concrete mixes has been presented in this paper.
Vishnuram address for correspondence senior lecturer, department of civil engineering, vlb janakiammal college of engineering and technology, coimbatore641 042. Comparative strength of plain concrete against sikamentnn high strength. Ultra high performance concrete pathway to commercialization. Within the last few decades, research has been conducted on what is known as ultra high performance concrete uhpc. In 1998, the technical activities committee and its subcommittee on highperformance concrete derived and approved an official aci definition. This high performance concrete can be utilized in structural rehabilitation and accelerated bridge construction in addition to several other. It covers all aspects of hpc from materials, properties and technology, to construction and testing.
Evaluation of ultrahighperformance fiberreinforced concrete celik ozyildirim, ph. Ultrahigh performance concrete fhwa us department of. High performance concrete seminar and ppt with pdf report. Highperformance fiberreinforced cementitious composites hpfrccs are a group of fiberreinforced cementbased composites which possess the unique ability to flex and selfstrengthen before fracturing. Thus, elements made with uhpc are thinnerlighter than elements made with.
Highperformance concrete hpc is a concrete mixture, which possesses high durability and high strength when compared to conventional concrete 1. Ultrahigh performance concrete uhpc has mechanical and durability properties that far exceed those of conventional concrete. Evaluation of ultra high performance fiberreinforced concrete celik ozyildirim, ph. The composition of hpc usually consists of cement, water, fine sand, superplasticizer, fly ash and silica fume.
High performance concrete is necessary for the construction of high rise building and long span bridges. High performance concrete and its applications in the field. High performance concrete hpc can go a long way in addressing concerns about providing more durable and longer lasting concrete as well as meeting strength and other performancerelated criteria. Ctbuh 2004 october 10, seoul, korea 457 application of high performance concrete in petronas twin tower, klcc jaeho kim1, seunghoon lee2 1general manager, samsung corporation, korea 2general manger, inst. 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. Highperformance concrete hpc the word high performance denotes something more than what is achieved on a routine basis and involves a specification that often requires the concrete to meet several criteria. Use of ultrahigh performance concrete in bridge design. This paper presents the hardened properties of a high performance fibrereinforced fineaggregate concrete extruded through a 9 mm diameter nozzle to build layerbylayer structural components in a printing process. The content of cementitious material is high and the watercement ratio is low.
The term ultrahigh performance concrete uhpc refers to a relatively new. 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. High performance concrete hpc there are no unified definitions for high performance concretes hpc and different institutions and experts define high performance concrete differently. Chemical and physical properties of cement can help in selecting desired cement to produce highperformance concrete. The beams had a minimum compressive strength of 69. High strength and high performance concrete materials and. The allowable concrete tensile stress used in flexural design of hpc girders should be limited to 6. Abstract with an intention of increasing lifespan of bridges, several initiatives to use ultra. Sustainable high performance concrete buildings authors.
High performance fiberreinforced cementitious composites hpfrccs are a group of fiberreinforced cementbased composites which possess the unique ability to flex and selfstrengthen before fracturing. High performance concrete masonry will hpcmus can reduce costs while adding value to all building phases. Concrete may be required to be pumped to almost a kilometre in the city of jeddahs kingdom tower. The mechanical and durability properties of uhpc make it an ideal candidate for use in developing. Also explore the seminar topics paper on high performance concrete with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. The book will be valuable for all concrete technologists and construc. 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. High performance concrete for highrise construction. Ultrahighperformance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y.
Hpc is a construction material which is being used in increasing volumes in recent years due to its long term performance and better rheological, mechanical and durability properties than cc. Forthe purpose of this research program, high performance concrete is defined in terms of certain target strength and durability requirements as shown below. Ultrahigh performance concrete uhpc is an advanced construction material that affords new opportunities for the future of the highway infrastructure. Energy and atmosphere, optimize energy performance a recent research project using wholebuilding energy simulation showed that the effect of thermal mass in concrete framed buildings, combined with thermal improvements to the building. Highearlystrength concrete, also called fasttrack concrete, achieves its specified strength at an earlier age than normal concrete. Mar 06, 2014 high performance concrete hpc is a specialized series of concrete designed to provide several benefits in the construction of concrete structures that cannot always be achieved routinely using conventional ingredients, normal mixing and curing practices. Research, development and application in europe michael schmidt and ekkehard fehling synopsis. High performance concrete technology delivery team created to implement a mandate of the intermodal surface transportation efficiency act of 1991 istea legislation, the federal highway administrations fhwa high performance concrete technology delivery team hpc tdt motivated and helped state dots to build. Cerny department of structural mechanics, faculty of civil engineering, czech technical university in prague, czech republic abstract the moisture transport and storage parameters of high performance concrete. As the latest development of concrete science and technology, high performance concrete hpc and ultrahigh performance concrete uhpc have attracted. High performance concrete hpc is a specialized series of concrete designed to provide several benefits in the construction of concrete structures that cannot always be achieved routinely using conventional ingredients, normal mixing and curing practices.
This concrete is defined as follows at the three stages of concrete. High performance in a broad manner can be related to any property of concrete. High performance concrete specifications and practices for. The compressive strength of highperformance concrete and. The book will be valuable for all concrete technologists and construction engineers wishing to take. The term includes a broad range of materials such as defectfree, dense particle, engineered composite, multiscale particle, and fiberreinforced cementitious. Hpc mixtures are composed of essentially the same materials as conventional concrete mixtures, but the proportions are designed, or engineered, to provide the strength and durability needed for the. Highperformance concrete is more brittle as compared to normal strength concrete nsc, especially when high strength is the main criteria. High performance concrete seminar report, ppt, pdf for. The compressive strength of silica fume concretes was investigated at low watercementitious materials ratios with a naphthalene sulphonate superplasticizer.
The test results show that at room temperature, the 56day compressive strength of the uhpc1 mix was 155. Selfcompacting highperformance concrete is a high performance concrete that can be compacted into every corner of a formwork, purely by means of its own weight and without the need for vibrating compaction fig. Experimental investigation on high performance concrete. High performance concrete is more brittle as compared to normal strength concrete nsc, especially when high strength is the main criteria. Since rheological parameters and compressive strength are fundamental properties of concrete in two. Development of nonproprietary ultrahigh performance. High performance concrete hpc the word high performance denotes something more than what is achieved on a routine basis and involves a specification that often requires the concrete to meet several criteria. All four modified mixes exhibited higher compressive strength, lower drying shrinkage, and lower chloride ion permeability than the class d control mix. View ultra high performance concrete research papers on academia. Evaluation of ultrahighperformance fiberreinforced concrete. Ultrahigh performance concrete introduction advances in the science of concrete materials have led to the development of a new class of cementitious composites, namely ultrahigh performance concrete uhpc. Download a pdf of high performance concrete specifications and practices for bridges by the national academies of sciences, engineering, and medicine for free. As the latest development of concrete science and technology, highperformance concrete hpc.
Department of transportation federal highway administration virginia center for transportation innovation and research a partnership of the virginia department of transportation. To call concrete high performance implies that it is specialized. High performance concrete the development of high performance concrete hpc is a giant step in making concrete a hightech material with enhanced characteristics and durability. Highperformance concrete highperformance concrete hpc is a relatively new term used to describe concrete that conforms to a set of standards above those of the most common applications, but not limited to strength. For instance, cement with low c3a is the most desired type of cement to produce high performance concrete because the c3a creates incompatibility of cement with a superplasticizer. Apr 08, 2015 high performance concrete the development of high performance concrete hpc is a giant step in making concrete a hightech material with enhanced characteristics and durability. 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 concrete.
However, high strength concrete is defined as concrete that has a compressive strength of 55mpa or higher, as per aci code. Ductility in case of highperformance concrete can be improved by applying a confining pressure on hpc. High performance concrete seminar report,ppt,pdf,doc. Thorpe 5 6 department of civil and building engineering, loughborough university, 7 loughborough, leicestershire, le11 3tu, united kingdom 8 9 10 abstract 11 12 this paper presents the hardened properties of a highperformance fibrereinforced.
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