Hardened properties of highperformance printing concrete. The concrete used some advantages of selfcompacting concrete, and sprayed concrete, for optimisation of the mix proportions to suit the innovative process. Properties of high performance concrete systems incorporating large. 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. For the purposes of this specification, high performance concrete hpc is considered as concrete engineered to meet specific needs of a project. Properties of high performance concrete containing high reactivity metakaolin. In other words all the mechanical properties of concrete are superior in a high performance concrete.
The enhanced strength and durability properties of uhpc are mainly due to optimized. The book will be valuable for all concrete technologists and construction engineers wishing to take. The methodology to develop such mix has been explained. Material property characterization of ultra high performance concrete publication no. Uhpc is being considered for use in a wide variety of highway infrastructure applications. High strength concrete incorporating ground granulated. The research deals with a new type of high performance concrete with improved physical properties, which was prepared by using metal additives minutes metakaolin and by studing their impact on. High performance concrete is a concrete having high strength, high durability, high resistance to chemical attack and high workability. The compressive strength of highperformance concrete and.
High strength concrete and high performance concrete. Introduction high performance concrete hpc is a concrete. After more than 80 years of efforts, the concrete industry is still faced with the challenge of developing a field test to measure the relevant rheological properties of concrete quickly and accurately. During 1970s, any concrete mixtures which showed 40 mpa or more compressive strength at 28 days were. This work summarizes recent developments in the field of high performance concrete. A discussion on shortterm mechanical properties of concrete which includes, compressive strength, stressstrain behavior. Third, allowable stress design discourages the use of high strength concrete. The material properties, mix design and curing regime are determined.
The materials combination of superior properties facilitates the ability to design thin, complex shapes. Review on strength properties of high performance concrete under shockwave compactor oviya. Thus adding flyash and fibres to concrete its performance increases and cost decreases. This class of concrete has been demonstrated to facilitate solutions that address specific problems in the u.
The aim of this study is to study on effect of hpc containing supplementary cementitious materials such as alccofine and glass powder. The material attributes are understood by studying the stress strain behaviour of uhpc. Since rheological parameters and compressive strength are fundamental properties of concrete in two. High performance concrete specifications ideally should be performance oriented.
It was named portland cement because it looked like the. Not all properties can be achieved at the same time. It is a concrete mixture, which holds high durability and high strength when compared to conventional concrete. High performance concrete is a term used to describe concrete with special properties not attributed to normal concrete. Highperformance concrete almost always has a higher strength than normal concrete. The document provides mandatory language that the specifier can cut and paste into project specifications. Highperformance concrete hpc is a concrete mixture, which possesses high.
Such requirements cannot always be achieved by using only conventional materials or applying conventional practices. This concrete contains one or more of cementious materials such as fly ash, silica fume or ground granulated blast furnace slag and usually a super plasticizer. 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. It covers all aspects of hpc from materials, properties and technology, to construction and testing. High performance concrete hpc is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. In this experimental investigation, glass fibres were added in different percentages such and their effect on mechanical properties of concrete. Properties of fc depend on mix composition and the method of mix preparation, therefore two directions for achieving high performance properties should be mentioned. Table 172 lists properties that can be selected for high performance concrete. Engineering, durability, and sustainability properties. Properties of concrete portland cement is produced by mixing ground limestone, clay or shale, sand and iron ore. 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. Properties of concrete while cement in one form or another has been around for centuries, the type we use was invented in 1824 in britain. High reactivity metakaolin hrm is an engineered pozzolanic mineral admixture, reacting aggressively with calcium hydroxide which. Today compressive strengths exceeding 20,000 psi 140 mpa have been used in castinplace buildings.
Fhwahrt06103 august 2006 research, development, and technology turnerfairbank highway research center 6300 georgetown pike mclean, va 221012296. Cip 33 high strength concrete what is high strength concrete. Highstrength concrete and highperformance concrete are not synonymous because strength and performance of concrete are different properties of concrete. For example, a normal strength concrete with very high durability and very low permeability is considered to have highperformance properties. Modern building materials, structures and techniques, mbmst 2016 durability properties of high performance foamed concrete eva namsonea, genadijs a ahmenkoa, aleksandrs korjakinsa. Highstrength concrete is defined based on its compressive strength at a given age whereas highperformance concrete is defined based on performance criteria namely. As such, we first explored the properties of uhpc with a designed 28day compressive strength of 120 mpa or higher in the fresh mix phase, and. Pdf study on mechanical properties of high performance. To accomplish this, concrete mixtures with and without class c fly ash were manufactured and their strength and durability properties were determined.
To evaluate the behaviour of alccofine based high performance concrete, both compressive strength and durability aspects have been studied in this investigation. High performance concrete seminar ppt with pdf report. Hrm has been introduced to be a beneficial alternative for silica fume, required in the formulation of high strengthperformance concrete. The shockwave compactor is an efficient technique to increase the strength properties of the concrete. The heating process causes the materials to break down and recombine into new compounds that can react with. Ultra high performance concrete has a discontinuous pore structure that reduces liquid ingress, significantly enhancing durability compared to conventional and high performance concretes. Pdf mechanical properties of ultra high performance. Ultrahigh performance concrete portland cement association. Highperformance concrete an overview sciencedirect topics. Concrete is generally good future and is unlikely to get replaced by any other material on account of its ease to. Material property characterization of ultrahigh performance.
The major outcome of this project is to enhance the strength properties of the concrete. A mix design procedure for high performance concrete mixes has been presented in this paper. However, it was also reported that pcc ash has a positive effect on the longterm mechanical properties and durability of concrete but adversely affects early strength. A mix design procedure for highperformance concrete mixes has been presented in this paper. The required properties for concrete to be classified as high performance therefore depend on the properties of normal concrete achievable at a particular time and location. Since rheological parameters and compressive strength are fundamental properties of concrete in two different stages of production, the correlation between rheological parameters and. In this paper we propose a model to evaluate the compressive. High performance concrete is defined as concrete with much higher early strength and greatly enhanced durability against freezing and thawing in comparison with conventional concrete.
He received his bs and ms from the university of tehran, iran and his phd. The concrete printing process and the fresh properties of the concrete, including the. Bickley and fung 2001 demonstrated that 40 mpa 6,000 psi high. The major difference between conventional cement concrete and high performance concrete is essentially the use of mineral admixtures in the latter chemical composition determines the role of mineral admixtures in enhancing properties of concrete. Apr 21, 2015 concrete is the most widely used construction material in india with annual consumption exceeding 100 million cubic meters. Mechanical properties of highstrength concrete manish kumar. By usage of mineral admixtures, the cement concrete becomes more homogeneous and there is marked enhancement in the strength properties. Cip 33 high strength concrete what is high strength concrete it is a type of high performance concrete generally with a specified compressive strength of 8,000 psi 55 mpa or greater. High strength concrete and high performance concrete are not synonymous because strength and performance of concrete are different properties of concrete. Pdf hardened properties of highperformance printing concrete. Ultra high performance concrete uhpc is a new class of concrete that has superior performance characteristics compared to conventional concrete.
High performance concrete seminar and ppt with pdf report. Table 172 lists properties that can be selected for highperformance concrete. The american concrete institute aci defines high performance 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. Highperformance concrete specifications ideally should be performance oriented. Concrete is the most widely used construction material in india with annual consumption exceeding 100 million cubic meters. The main parameters that varied were the fiber volume content and the types of mineral addition. This report details the laboratory developmental work on producing high performance concrete for highway applications. Mechanical properties of ultrahigh performance concrete. These materials may cost more than materials of lower quality.
High strength and high performance concrete materials and. Introduction it is important to note the high strength and highperformance concrete are not synonymous. Guide specification for high performance concrete for bridges ii keywords. This concrete contains one or more of cementious materials such as fly ash, silica fume or ground granulated blast.
High performance concrete may be defined as concrete with strength and durability significantly beyond those obtained by normal means. Topics covered include production methods, mechanical properties and nonmechanical properties, such as durability. The mechanical properties of cement paste are strongly affected by chemical. High performance means that the concrete has one or more of the following properties.
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. Site experience indicates that more compaction is normally needed for high strength concrete with high. 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. 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. Apr 08, 2015 properties of high performance concrete properties of fresh concrete high performance concrete is characterized by special performance both short and longterm and uniformity in behaviour. Guide specification for high performance concrete for bridges. High performance concrete hpc is most recent growth in concrete, recently it has became the most popular, because this was used in so many prestigious projects like nuclear power projects, flyover, skyscrapers and dams etc. Development of high performance concrete and evaluation of. Mechanical behavior of highperformance concrete under thermal. High performance vs high strength concrete concretebasics.
In 1998, the technical activities committee and its subcommittee on highperformance concrete derived and approved an official aci definition. 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. Pdf mechanical properties of high performance concrete. Material a cement ordinary portland cement53 grade ambuja cement have used in investigation. Properties of concrete concrete is an artificial conglomerate stone made essentially of portland cement, water, and aggregates. Introduction it is important to note the highstrength and highperformance concrete are not synonymous. Mechanical properties of highstrength concrete manish. Formulating constitutive stressstrain relations for flexural design of ultra high performance fiberreinforced concrete kaka et al. Mechanical properties of high performance printing concrete reinforced with steel fibres with different lengths 3 and 6 mm at different fibre volume contents 0. This page contains high performance concrete seminar and ppt with pdf report.
A high performance printing concrete has been developed for an innovative freeformconstruction concrete printing process. Unfortunately, many specifications are a combination of performance. Mechanical properties of high strength concrete hsc can be divided in two groups as shortterm mechanical properties and longterm mechanical properties. Aashto, abrasion resistance, admixtures, aggregates, airentrained concrete, air void analyzer, alkalicarbonate reactivity, alkalisilica reactivity, asr, astm, bridge, cement, cementitious materials, chemical admixtures, chloride ion pene. Mehdi ghalibafian is an associate professor of civil engineering at the university of tehran, iran. High strength concrete must meet high performance standards consistently in order for it to be effective. High performance concrete is defined as a concrete which meets special performance and uniformity requirements that cannot always be achieved routinely by using only conventional materials and normal mixing, placing and curing practices, as per aci 363. Formulating constitutive stressstrain relations for. Application of ultrahigh performance concrete to bridge girders. High performance concrete seminar report, ppt, pdf for. High performance concrete and its applications in the. 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. This mixture is heated in a rotary kiln to temperatures as high as 1 600 degrees celsiushigh as 1,600 degrees celsius.
It should help engineers appreciate the potential of high performance concrete in construction. Uhpfrc exhibits superior properties in terms of compressive behaviors, tensile behaviors, and durability. 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%. Furthermore, apart from mechanical properties, the durability of high performance concretes concerning the most common harmful ions sulfate, chloride, and seawater is also improved. High performance concrete is a concrete in which certain characteristics are developed for a particular application and environment, so that it will give excellent performance in the structure in which it will be placed. However, strength is not always the primary required property. Highperformance concrete hpc exceeds the properties and constructability of normal. Highperformance concrete characteristics are devel oped for particular.
The mechanical properties compressive, splitting tensile, and flexural strength evaluated at the ages of 7,28, 56 and 91 days while the static. Explore high performance concrete with free download of seminar report and ppt in pdf and doc format. High strength concrete is defined based on its compressive strength at a given age. Highperformance concrete hpc is concrete that has been designed to be more durable and, if necessary. Experimental investigation on the strength properties of. The compressive strength of silica fume concretes was investigated at low watercementitious materials ratios with a naphthalene sulphonate superplasticizer. High performance concrete is a concrete mixture, which possess high durability and high strength when compared to conventional concrete. One direction implies the use of technology of intensive mixing, including the effects of turbulence and cavitation. The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm h in. Pdf high performance concrete by pierreclaude aitcin. It is a type of high performance concrete generally with a specified compressive strength of 6,000 psi 40 mpa or greater. Strength and durability of high performance concrete. Mechanical properties of ultrahigh performance fiber. The effects of aggregate type, size, and content on the behavior of normal and highstrength concrete, and the relationships between compressive strength, flexural strength, and fracture energy are discussed.