Development of high performance concrete and evaluation of. Materialtechnologie uhpc ultra high performance concrete obv. High performance concrete hpc it is very important to follow the manufacturers care and maintenance guide to retain your products warranty. The ultra high performance concrete uhpc workshop was held on january 11 12, 2011 at columbia university in new york city. More yearbooks have recently been added to the website catching the 60s and 70s.
High performance concrete by pierreclaude aitcin pdf file. Performing organization name and address department of civil engineering university of nebraskalincoln. 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. Studies on the use of highperformance concrete and frp reinforcement for the i225parker road bridge. Any questions or comments on the annuals should be directed to. These properties include compressive strength and permeability. Additionally, to have ultrastrength and ultraductility, quartz flour and fiber may be added, respectively. It is important to understand how concrete performance is linked to its microstructure. 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 book will be valuable for all concrete technologists and construction engineers wishing. In case of any doubt about the proper maintenance procedure, please contact id created, inc. Mechanical behavior of highperformance concrete under thermal. Application of ultrahigh performance concrete to bridge.
Consequently, inspectors should be more concerned with undervibration rather than overvibration. Ultra high performance concrete pathway to commercialization. Urban development that took place through the world in the last few decades yielded significant developments for concrete technology. This book provides the state of the art on recent progress in the high performance concrete applications written by researchers and experts of the field.
These concepts are simultaneously coming together in 2004 and 2005. Normal concrete substrates were first subjected to different surface preparation methods prior to bonding the ultra high performance fiber concrete to form repair composites. The term highperformance concrete hpc is relatively new, and it refers to many properties such as strength, durability, sound and. Large reduction of deflections due to high performance concrete.
More recent information on the subject is obtained directly from a variety of publications including books, technical journals, conference proceedings, and research reports. Download it once and read it on your kindle device, pc. The book should be useful to graduate students, researchers, and practicing engineers in related fields. High performance concrete modern concrete technology. Mixing and casting hp and vhp concrete in the laboratory. Purchase development of ultrahigh performance concrete against blasts 1st edition. Development of ultrahigh performance concrete against blasts. Highperformance concrete is more brittle as compared to normal strength concrete nsc, especially when high strength is the main criteria. The cost aspects of the use of silica fume are considered. The american concrete institute aci defines highperformance concrete as concrete meeting special combinations of performance and uniformity requirements that cannot always be achieved routinely when using conventional constituents and normal mixing, placing and curing practices. High performance concrete engineering properties and code aspects. This book documents the research, development, and deployment of uhpc components and.
They will assure that 50, 75, 100 or 150 year concrete is a valid expectation. 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. In addition, rilem, specified a bending test method for steel fiberreinforced concrete. High performance concrete hpc action of superplasticizers. Hpc typically has very low permeability to air, water, and chloride ions.
Chemical and physical properties of cement can help in selecting desired cement to produce highperformance concrete. Ultrahighperformance concrete is a new type of concrete that is being developed by agencies concerned with infrastructure protection. Introduction concrete is a durable and versatile construction material. Sustainable high performance concrete buildings authors. High performance concrete specifications and practices for bridges documents the types of specifications and practices used by state transportation agencies to produce high performance concrete for bridges. Highperformance concrete portland cement association. The durability and service life of concrete exposed to weather is related to the permeability of the cover concrete protecting the reinforcement. High performance concrete technology and applications free book at e books directory.
However, i would like to know about the effect of the sial ratio of the cementitious matrix on the behaviorcharacteristics of a normal portland cement concrete or. This concrete is defined as follows at the three stages of concrete. Ultra high performance concrete uhpc reinforced with steel fibers has been developed in recent decades. Highperformance concrete without a superplasticizer will be relatively stiff and contain little air. 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 project. Slag cement increases the strength of conventional concrete and is often a vital component in producing high strength concrete. This book contains contributions from the leading french, canadian and swiss researchers, designers and material specialists, translated into english for the first time.
Particular emphasis is placed on the application, for the first time, of hpfrc coupling beams in a highrise structure to be constructed in. 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. Highperformance concrete hpc is a concrete mixture, which possesses high. 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. The report also identifies specifications and practices reported as having improved concrete performance and. 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. Ultrahigh 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. Trbs national cooperative highway research program nchrp synthesis 441.
Kooiman proposed a method for modeling the postcracking behavior of high performance fiberreinforced concrete. Monitoring of the chemical and mechanical changes in high performance concretes during the first days. High performance concrete technology and applications. Concrete is an extremely durable product, but sometimes your job requires a little more than just standard ready mix. High strength of concrete is achieved by reducing porosity, inhomogeneity, and. Development of high performance concrete and evaluation of construction joints in concrete floating bridges development of high performance concrete and evaluation of construction joints in concrete floating bridges by rafik itani, eyad masad, bart balko and brian bayne washington state transportation center trac. High performance concrete and its applications in the. High performance concrete modern concrete technology book 5. Chapter 1 highperformance concretes, 19891994 fhwa. Ever since the terminology highperformance concrete hpc was introduced into the industry, there have been numerous attempts to develop a definition. Pdf high performance concrete by pierreclaude aitcin. High performance concrete hpc, a material widely utilized in heavy structural construction is a cheap and dependable material that can be studied to reach its optimum performance. Highperformance concretes a stateofart report 19891994 1. High cementitious materials contents, large dosages of admixtures, low water contents, and.
Structural behavior of ultra high performance concrete. High performance concrete 1st edition pierreclaude. 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. High performance concrete has become widely accepted practically on all continents. Ultra high performance concrete uhpc book depository.
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. Mix design of high performance concrete is different from that. The content of cementitious material is high and the watercement ratio is low. 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. Superhighstrength high performance concrete brings together the results of a. Concrete high school yearbooks concrete heritage museum.
Highperformance concrete can be difficult to finish. Materialtechnologie uhpc ultra high performance concrete. The dense pore structure of highperformance concrete makes it so impermeable hsc is considerably more brittle. Concrete is widely used because of its versatility, affordability, and availability of raw materials, strength, and durability. June 1998 the most exciting development for 1998 in concrete paving is the shift in federal emphasis in highperformance, or durable concrete to main line paving, after having been focused only on structural elements like bridge girders and while this program is just beginning, it has substantial implications for contractors, material suppliers and pavementowning customers. Characterization of the interfacial bond between old. As with the concrete herald archives, several issues are missing. Application of ultrahigh performance concrete to bridge girders 5. In this context, it is natural that high performance concrete hpc will soon gain a mainstream appeal, especially in fast developing nations like india. Ultra high performance concrete uhpc by michael schmidt, 9783899583762, available at book depository with free delivery worldwide.
Introduction application of high performance concrete hpc has got momentum in. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. High performance concrete grade m50 sdmcet dharwad02 page 1 chapter 1 1. Slag cement has been used effectively in high performance concrete in north america for over 20 years and is specified by many highway departments in their high performance concrete mixtures. The interfacial bond characteristics between normal concrete substrate as old concrete and ultra high performance fiber concrete as repair material have been investigated.
Study of mechanical behavior of ultra high performance concrete. The allowable concrete tensile stress used in flexural design of hpc girders should be limited to 6. The test results show that at room temperature, the 56day compressive strength of the uhpc1 mix was 155. While all highstrength concrete is also highperformance, not all highperformance concrete is highstrength. The book will be valuable for all concrete technologists and construction engineers wishing to take advantage of the remarkable properties of the material. High performance concrete hpc there are no unified definitions for high performance concretes hpc and different institutions and experts define high performance concrete differently.
Hemrick oak ridge national lab maria guimaraes electrical power research institute project monitoring team. Ultrahighperformance concrete and advanced manufacturing methods for modular construction neet1 annual meeting september 29, 2015 research team y. Nawy is the author of fundamentals of highperformance concrete, 2nd edition. In 1998, the technical activities committee and its subcommittee on highperformance concrete derived and approved an official aci definition. Detailing and behavior of coupling beams with high. From high rises in the city to sidewalks in your small town, ozinga offers a performance concrete mix design that is best suited for your specific project. Ultra high performance concrete uhpc zeichnet sich im vergleich zu normalbeton durch eine stark erhohte druckfestigkeit 150 mpa aus.
Results from experimental and analytical studies aimed at incorporating highperformance fiber reinforced concrete hpfrc coupling beams in earthquakeresistant highrise corewall construction are presented. Ductility in case of highperformance concrete can be improved by applying a confining pressure on hpc. The book is as uptodate as is possible in such a rapidly expanding field of research. Highperformance concrete hpc is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. This research is based on the measurement of early age characteristics of the high performance concrete hpc, the study of the influence of water binder ratio and. With addition of water in a concrete mix, portland cement particles in a finely divided state have a tendency to flocculate showing high degree of cohesiveness. Mechanical properties of ultrahigh performance concrete. It covers all aspects of hpc from materials, properties and technology, to construction and testing. Forthe purpose of this research program, high performance concrete is defined in terms of certain target strength and durability requirements as shown below. Abstract highperformance concretes, 19891994 fhward. High performance concrete modern concrete technology book 5 kindle edition by p. Today many students are struggling to buy books at high.
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