The introduction of selfcompacting concrete scc technology has. Written by an international group of contributors who are. It is used in the construction where it is hard to use vibrators for consolidation of concrete. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta the properties of fly ash conform to is. One of the problems associated with manual compaction by vibration is the assurance. Nowadays, its use is progressively changing the method ofconcrete placement on building sites. So as a solution for the above problem scc was created by okamura in 1986. Introduction elf compacting concrete scc is considered as a concrete which can be placed and compacted under its self weight with little or no vibration effort, and which is at the same time. Selfcompacting concrete, scc, mix design, flowability, segregation resistant, testing methods, slump flow test, workability, strength, durability, form pressure, 1. Department of civil engineering, faculty of engineering technology, university of twente, p. This standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less.
Mix design requirements for self compacting concretescc. The mix composition is chosen to satisfy all performance criteria for the concrete in both the fresh and hardened states. Self compacting concrete concrete that is able to flow under its own weight and completely fill the form work even in the presence of congestion. This project is aimed at mitigating the friction between solid particles in selfcompacting concrete scc during deformation at the fresh stage so that scc may be treated as a standard. Admixtures a polycarboxylic ether based superplasticizer complying with astm c494 type f, was used. Selfcompacting concrete a useful technology syed ali rizwan1, thomas a bier2 and husnain ahmad3 abstract a study on high performance hp selfcompacting concrete scc is reported. The definition of selfcompacting concrete is given and advantages of its application are underlined.
It uses super plasticisers and stabilizers to significantly increase the ease and rate of flow. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. Hence to overcome these defects the self compacting concrete is used. A self compacting concrete scc mixture, due to its special rheological properties, may be placed differently than in traditional variants. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Selfcompacting concrete scc is a special type of concrete which can be placed and consolidated under its own weight without any vibration effort due to its excellent deformability, and which at the same time is cohesive enough to.
It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of. A simple tool has been designed for self compacting concrete scc mix design with. Hence okamura is known as the father of scc technology. Experimental investigation on self compacting concrete. Self compacting concrete is a type of concrete that is highly fluid allowing it to selflevel, penetrate into complicated areas and formwork, through complex reinforcement and much more.
Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. Aug 21, 2018 friends we use different concrete for different purposes. Selfcompacting concrete has economic, social, and environmental benefits over conventionally vibrated concrete. Ppt self compacting concrete powerpoint presentation free. The main purpose of the use of self compacting concrete is to get flow of concrete without segregation. The mix designed as per the requirements are tested before using it in construction.
Selfcompacting concrete civil engineering community. Applications of selfcompacting concrete in japan, europe. Self compacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Selfcompacting concrete is a fluid mixture suitable for placing in structures with congested. Okamura at ouchi university, japan, at a time when skilled labor was in limited supply, causing difficulties in concr. Inadequate homogeneity of the cast concrete due to poor compaction or segregation may drastically lower the performance of mature concrete insitu. Experimental study on fiber reinforced self compacting concrete. The mix designed as per the self compacting concrete mix design must involve key practices to achieve the requirements of quality and durable mix. Selfcompacting concrete has been used in bridges and even on precast sections.
Self consolidating concrete scc, also known as self compacting concrete, is a highly flowable, nonsegregating concrete that can spread into place, fill the formwork and encapsulate the reinforcement without any mechanical consolidation. Sudhir misra,department of civil engineering,iit kanpur. Self compacting concrete scc represents one of the most significant advances in concrete technology for decades. Also explore the seminar topics paper on self compacting 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. Ozawa introduction self compacting concrete scc is an pioneering concrete that does not involve shuddering for insertion and compaction. Selfcompacting concrete is extensively used in the construction of concrete frames, which also constitute one of the key application segments in the global selfcompacting concrete market.
Selfcompacting concrete journal of advanced concrete. One of the most remarkable projects built using self compacting concrete is the akashikaikyo suspension bridge. Materials, properties and applications presents the latest research on various aspects of selfcompacting concrete, including test methods, rheology, strength and durability properties, scc properties at elevated temperature, sc manufacturing with the use of scms, recycled aggregates and industrial byproducts. Selfcompacting concrete scc represents one of the most outstanding advances in concrete technology during the last decade. Selfcompacting concrete scc, requiring no consolidation work at a site or concrete plants, has been developed in japan to improve the durability and uniformity of concrete in 1988 okamura and ouchi, 1999. Scc is often produced with low watercement ratio providing the potential for high early strength. Scc is defined in terms of the common scale for the workability of. Self compacting concrete scc can be defined as fresh concrete that flows under its own weight and does not require external vibration to undergo compaction. Since then, much additional technical information on. Next, features of fresh scc, test methods are described in detail and classifications especially defined for this material are proposed. Pdf selfcompacting concrete procedure for mix design.
Selfcompacting concrete scc also referred to, as selfconsolidating concrete, is a relatively new concrete technology used in the construction industry. Defined as concrete that is able to flow and consolidate under its own weight, completely fill the formwork even in the presence of dense. Pdf selfcompacting concrete robustness of scc ijaers. Selfcompacting concrete scc has many benefits in terms of production and placement compared to traditional concrete namely, elimination of external or internal vibration for compaction, better flowability, workability and pumpability, as well as. Self compacting concrete an overview sciencedirect topics. Self compacting concrete scc mix design must involve key practices to achieve the requirements of quality and durable mix. It is also known as flowable, self consolidating, and nonvibration concrete. The only book to offer a systematic and comprehensive source of information on scc technology from its inception to latest developments during the last decade, concrete technology has made an enormous advance through the introduction of selfcompacting concrete. Scc self compacting concrete was introduced by prof.
Self compacting concrete scc has many benefits in terms of production and placement compared to traditional concrete namely, elimination of external or internal vibration for compaction, better flowability, workability and pumpability, as well as increased bonding with congested reinforcement. Selfcompacting concrete scc is a relatively new buildingmaterial. Self compacting concrete download ebook pdf, epub, tuebl, mobi. Self compacting concrete is a modern concrete with similar characteristics as the conventional concrete. Scc can be made from any of the constituents that are generally used for structural concrete. Modern application of self compacting concrete ssc is focused on high performance, better and more reliable and uniform quality. Selfcompacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Self compacting concrete scc is a new category of high performance concrete characterized by its ability to spread into a heavily reinforced area under its own weight without the need of vibration and has excellent deformability and high resistance to segregation. Scc technology has been rapidly progressing over the last 20 years. Self compacting concrete seminar report, ppt, pdf for. Despite its increased fluidity, self compacting concrete maintains the high quality demanded by todays building industry, presenting both flexibility as.
Specification and guidelines for selfcompacting concrete efnarc. Selfcompacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. Filling and passing ability, segregation resistance are the properties of self compacting. Selfcompacting concrete the only book to offer a systematic and comprehensive source of information on scc technology from its inception to latest developments during the last decade, concrete technology has made an enormous advance through the introduction of selfcompacting concrete. As a result, scc is viewed as a solution to many constructability challenges, such as. Selfcompacting concrete scc is widely recognized as a fundamental revolution in concrete technology. Experimental study on fiber reinforced self compacting. As the concrete frame industry aims towards improvement in the process of designing and building insitu frame buildings, the demand from the segment will. Self compacting concrete seminar report, ppt, pdf for civil.
The degree of packing of coarse aggregate in scc is. Selfcompacting concrete was first developed in 1988 to achieve durable concrete structures. Selfconsolidating concrete or selfcompacting concrete commonly abbreviated to scc is a concrete mix which has a low yield stress, high deformability, good segregation resistance prevents separation of particles in the mix, and moderate viscosity necessary to ensure uniform suspension of solid particles during transportation, placement without external compaction, and thereafter until. A simple tool has been designed for self compacting concrete scc mix design with 29% of coarse aggregate, replacement of cement with metakaolin and class f flyash, combinations of both and controlled scc mix with 0. Self compacting concrete scc is a special type of concrete which can be placed and consolidated under its own weight without any vibration effort due to its excellent deformability, and which at the same time is cohesive enough to be handled without segregation or bleeding. Performance analysis of self compacting concrete without. Self compacting concrete a solution for technology hungry. Is 3831970, specification for coarse and fine aggregate from. It contains basic information on such systems, their manufacture and applications. In the mid1980, self compacting concrete scc was first developed in japan 12.
Guidelines for viscosity modifying admixtures for concrete. Selfcompacting concrete, journal of advanced technology, vol. I think it will be smart dynamic concrete insate of self dynamic concrete. International journal of innovative technology and exploring. Index terms scc, fly ash, silica fume, quarry dust, super ii. The use of selfconsolidating concrete has the potential to reduce labor costs, shorten the project schedule, and improve the final surface appearance of a concrete element. Basf provides the concrete technology expertise plus the chemical admixture understanding to ensure the performance you need on your next scc project. Selfcompacting concrete applications and advantages. Effect of placing selfcompacting concrete bottom up on.
A simple tool for self compacting concrete mix design. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. Jun 17, 2019 self compacting concrete has been used in bridges and even on precast sections. In this project, the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away. Selfcompacting concrete scc is a development of conventional concrete. Scc is a wellknown concrete with the ability to compact itself without the help of the vibrating process. What is the difference between self compacting concrete. Keywords self compacting concrete, flowability, passing ability, resistance to segregation, fly ash, superplasticizer. Mar 16, 2016 in 1983,there occurred a great problem while studying the durability of concrete structures in japan. Rilem technical committee especially devoted to scc. Ppt self compacting concrete powerpoint presentation.
Self compacting concrete download ebook pdf, epub, tuebl. Self compacting concrete scc is a key innovation in concrete technology and it is truly remarkable that, even after almost 30 years since its first implementation, it still attracts the interest. Materials, properties and applications presents the latest research on various aspects of self compacting concrete, including test methods, rheology, strength and durability properties, scc properties at elevated temperature, sc manufacturing with the use of scms, recycled aggregates and industrial by. One of the most remarkable projects built using selfcompacting concrete is the akashikaikyo suspension bridge. Viscosity modifying admixtures for selfcompacting concrete scc selfcompacting concrete is a concrete that is able to flow and consolidate under its own weight, completely fill the formwork even in the presence of dense reinforcement, whilst maintaining homogeneity and without the need for any additional compaction. Applications of selfcompacting concrete in japan, europe and.
This application of nanotechnology in construction provides benefits from the perspective of materials technology and. Ozawa introduction selfcompacting concrete scc is an pioneering concrete that does not involve shuddering for insertion and compaction. The paper presents the results of a study on the effect of a bottomup placing direction on the quality of bond conditions between steel and self compacting concrete. The flowability of scc is measured in terms of spread when using a modified version of the slump test. Study of mix design of self compacting concrete vipul kumar1 1 m. Recognizing the lack of uniformity and complete compaction of concrete by vibration, researchers at the university of tokyo, japan, started in the late 1980s to develop ssc. Friends we use different concrete for different purposes. Self compacting concrete scc, requiring no consolidation work at a site or concrete plants, has been developed in japan to improve the durability and uniformity of concrete in 1988 okamura and ouchi, 1999. The problem is that to made a durable concrete an adequate compaction is necessary by skilled labour. Stateoftheart technology in the applications of selfcompacting concrete scc in japan for the last ten years are described. The objective of the paper is to introduce this wonderful technology of the. Selfcompacting concrete jos brouwers eindhoven university. It is produced by simply adding a water reducing agent such as fly ash, to the traditional mix and it is best used in occasions where the characteristics of colors and texture are of prime importance. Tech student, civil engineering, roorkee institute of technology, uttrakhand,indiaabstract self compacting concrete scc is a high performance concrete that can flow under its own weight to completely fill the form work and self.
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