It can be poured quickly, flowing and spreading effortlessly. Okamura in japan to offset a growing shortage of labour ouchi m 1999119. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies. Design a self compacting concrete scc using local materials study on workability and compressive strength a project paper submitted to faculty of engineering, university malaysia sarawak in partial fulfillment for the degree of bachelor of engineering hons civil engineering 2000. Self compacting concrete incorporating highvolumes of class. Apr 18, 2015 shear walls are vertical elements of the horizontal force resisting system. O scc was first developed in japan around the year 1980. The seminar report on self compacting concrete which explains the mix design, advantages and disadvantages, applications, properties,process of making self consolidating concrete, theoretical and experimental studies with test results. Bulent erkmen carol shield catherine french department of civil engineering university of minnesota october 2008 published by. Self consolidating concrete scc is highly flowable, nonsegregating concrete that can spread into place, fill the formwork, and encapsulate the reinforcement without any mechanical consolidation. All types of cement conforming to en 197 are suitable.
Self compacting concrete scc, also known asself consolidating concrete, is. Selfcompacting 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. Evaluation of selfconsolidating concrete celik ozyildirim, ph. As per is4562000 6, cement is replaced by weight of material. It is also known as flowable, self consolidating, and nonvibration concrete. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. Investigations for establishing a rational mix design method and self compactability testing methods have been carried out from the. Pdf selfcompacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. Download the latest pdf and ppt on slideshare for civil projects. Self compacting concrete is a flowing concrete mixture that is able to consolidate under it own weight the highly fluid nature of scc makes it suitable for placing in difficult conditions and in section with congested reinforcement. Self compacting has material requirements same as conventional concrete, but it requires admixtures to enhance the workability. Methods of testing self compacting concrete workability. Recently self compacting concrete was developed in japan and its use is spreading very rapidly to other countries. Self compacting concrete can be assessed by testing on mortars.
Selfcompacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Selfcompacting concrete is a recent development that shows potential for future applications. Design and application of self compacting concrete free download as powerpoint presentation. Types of materials required and their properties for self compacting concrete is discussed. Researches for establishing a rational mixdesign method and selfcompactibility testing methods have been carried out from the viewpoint of making it a standard concrete. Selfcompacting concrete scc is a special kind of innovative concrete, which is exceedingly flowable and nonsegregating concrete, and can be easily placed and compacted under its own self weight need not requiring any mechanical vibration due to its good deformability nature and also as it acquire a property called capability of flowing. Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. Ideal for difficult concrete pours or areas with a high density of reinforcing steel, the excellent flowing characteristics of scc make the most complex and challenging project easily achieved. Pdf selfcompacting concrete procedure for mix design.
Selfcompacting concrete procedure for mix design from. The european guidelines for self compacting concrete 1 introduction selfcompacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. Mar 16, 2016 o self compacting concrete is an innovative concrete that does not require vibration for placing and compaction. Selfcompacting concrete scc for prestressed bridge girders final report prepared by.
Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. Roadstone self compacting concrete scc is a highly fluid and flowable non segregating concrete that requires no mechanical vibration. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Additional rules for selfcompacting concrete scc selfcompacting concrete scc is an evolving technology and practices can vary. Self compacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. For concrete to be selfcompacting it should have filling ability, passing ability. Placing and curing selfcompacting concrete in hot climates carlos f.
However working on the parameters which affect the basic properties of selfcompacting concrete such as plastic viscosity, deformability, flowability and resistance to segregation, selfcompacting concrete may be proportioned. Self compacting concrete, confinements, strength, ductility. Volume 1, issue 4, april 2012 124 abstract the main objective of this study was to investigate the flexural behaviour of self compacting concrete scc beams using ggbfs as mineral admixtures along with the addition super plasticizer. Selfcompacting concrete is a fluid mixt ure suitable for placing in structures. One such latest generation concrete is self compacting concrete scc. Selfcompacting concrete scc it uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. The highest use of scc in india was done at delhi metro project. Self compacting concrete was first developed 1988 in order to achieve durable concrete structures. Dec 22, 2017 seminar on self compacting concrete scc special concrete 1. Due to its properties and composition, the selfcompacting concrete is described here as being one of the future. This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. Concrete that is capable of compaction under its own weight and can occupy all the spaces in the forms, which selflevels, does not segregate and does not entrap air is termed selfcompacting concrete scc. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing.
Mixes, consisting of slag blended cement, gravel 416mm, three types of sand 01, 02 and 0. It uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. Self compacting concrete is a recent development that shows potential for future applications. Self compacting concrete incorporating highvolumes of class f fly ash. When shear walls are designed and constructed properly, and they will have. P,india is used as additives according to astm c 618 5. Final report evaluation of selfconsolidating concrete celik. Self compacting concrete is a type of concrete that does not require external or internal compaction because it becomes leveled and compacted under its own weight. The present project investigates the making of selfcompacting concrete more affordable for the construction market by replacing high volumes of portland cement by fly ash. Self compacting of concrete using ggbs civil engineering ce project topics, base paper, synopsis ideas, abstract, report, source code, full pdf, working details for civil engineering, structural, construction, diploma, phd, btech, be, mtech and msc college students. Self compacting concrete an overview sciencedirect topics. It is able to flow and consolidate under its own weight, completely filling the formwork even in the presence of dense reinforcement. Selfcompacting concrete has been used in bridges and precast sections. Aspects regarding the use of self compacting concretes.
Selfcompacting concrete scc for prestressed bridge girders. The paper presents the characteristics of the selfcompacting concretes, their advantages and disadvantages when they are used in buildings. This study presents an experimental investigation on self compacting and self curing concrete sccm with fine aggregate replacement of a quarry dust 0, 10, 20, 30, 40% with 10% and 15% lwa constant and addition of mineral admixture fly ash. Air content of freshly mixed selfcompacting concrete by the pressure method. Selfconsolidating concrete scc is highly flowable, nonsegregating concrete that can spread into place, fill the formwork, and encapsulate the reinforcement without any mechanical consolidation.
Highly fluid, agilia is the ultimate self compacting concrete. The scc may be mixed on site, readymixed concrete or produced in a plant for precast concrete products. Concrete production and testing was covered in bs en 2069 april 2010 concrete. Although poor compaction is not prevalent in the majority of concrete cast today, any development that reduces the risks must be considered as. Compressive strength of self compacting concrete in all scc. Selfcompacting concrete civil engineering community. Experimental studies on m30 grade self compacting concrete. Selfcompacting concrete was first developed so that durability of concrete structures can be improved. It meets the demands placed by the requirements of speed and quality in concrete construction. Department of civil engineering university of minnesota. This paper addresses experiments and theories on selfcompacting concrete.
A numerical model for selfcompacting concrete flow. Shear walls are constructed to counter the effects of lateral load acting on a structure. The binder in scc consists of opc and fly ash in the ratio of 65. Mechanism of achieving self compaction 5 reduction of water. It achieves compaction into every part of the mould or formwork simply by means of its own weight without any segregation of the coarse aggregate. Admixtures a polycarboxylic ether based superplasticizer complying with astm c494 type f, was used. Therefore, large volumes of fly ash, partially in substitution of cement and partially as filler, can. The mix of self compacting concrete incorporates industrial wastes, such as flyash, silica fume, quarry dust etc. The ingredients for selfcompacting concrete are similar to conventional concrete. 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. River sand was replaced by manufactured sand msand at replacement levels of 20,40,60,80 and 100%. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building.
This is a sample project report on self compacting concrete. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. This part has now been rationalised with bs en 2061 2000 and published as a single standard bs en 206 20 including corigendum may 2014. The air test will be performed in accordance with wsdot fop for waqtc t 152 with the following modifications to the procedure. There fore each selfcompacting concrete has to be designed for the particular structure to be constructed. A measure of the ease by which fresh concrete can be placed and compacted.
Selfcompacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. This recommendation specifies the performance required of selfcompacting concrete, primarily the selfcompactability, and provide verification and inspection methods. It consists of cement, coarse and fine aggregates, water, mineral and chemical admixtures. Gram et al 1999 has focused their research on the properties of self compacting concrete especially early age and long term shrinkage and salt frost resistance. A concrete mix can only be classified as self compacting concrete if the requirements for all the following three workability properties are fulfilled. Volume 1, issue 4, april 2012 flexural behavior of.
Scc can be used for all types of structures due to the fact that it can be. Paratibha aggarwal 1, rafat siddique 2, yogesh aggarwal 1, surinder m gupta 1. It is the ability of scc to flow into all spaces within the formwork under its own weight. Self compacting concrete is highly engineered concrete with much higher fluidity without segregation and bleeding. Experimental based analysis has been widely used as a means to find out the response of individual elements. Though the concept originally was thought to be a tool to. In general, scc is concrete made with conventional concrete materials and, in some cases, with a viscositymodifying admixture vma. Minnesota department of transportation research services section 395 john ireland boulevard, mail stop 330 st.
View self compacting concrete research papers on academia. One of the most remarkable projects built using self compacting concrete is the akashikaikyo suspension bridge, japan. Development of scc self compacting concrete scc developed by professor hajime. Cip 37 self consolidating concrete scc 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. 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. Compaction of concrete is often seen as the achilles.
High deformability of mortar and concrete self compacting concrete. Self compacting concrete seminar report, ppt, pdf for. Seminar on self compacting concrete scc special concrete. When selfcompacting concrete becomes so widely used that it is seen as the standard concrete rather than a special concrete, we will have succeeded in creating durable and reliable. 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.
Okamura from the university of tokyo japan is mainly responsible for initiating the development of scc. A proper design of a self compacting concrete requires considerably more fines content as compared to the traditional concrete. This recommendation specifies the performance required of self compacting concrete, primarily the self compactability, and provide verification and inspection methods. Cip 37 self consolidating concrete scc 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. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. Self compacting concrete scc non segregating concrete. The heat of hydration for self compacting concrete is bigger and the time for when. Inadequate homogeneity of the cast concrete due to poor compaction or segregation may. Introduction self compacting concrete scc represents one of the most significant advances in concrete technology for decades.
Selfcompacting concrete by s and corneliu bobliana iure abstract. Selfcompacting concrete scc v introduction to selfcompacting concrete. Mix proportions of sccm for m40 grade concrete were arrived. The ultimate freeflowing, self compacting concrete. A numerical model for selfcompacting concrete flow through. Shear walls are vertical elements of the horizontal force resisting system. Selfcompacting concrete scc for prestressed bridge girders 7. Design and application of self compacting concrete concrete.
Further development of latest generation concretes in the recent past needs to update knowledge on the behaviour of such concrete with the addition of fibres to make them more efficient and effective. Materials for selfcompacting concrete the constructor. Hence to overcome these defects the self compacting concrete is used. Self compacting concrete is a modern concrete with similar characteristics as the conventional concrete. Self compacting of concrete using ggbs civil engineering.
Lachemib a research scientist international centre for sustainable development of cement and. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity. Selfcompacting concrete scc is an innovative concrete that does not requires vibration for placing and compaction. 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. Study of mix design of self compacting concrete vipul kumar1 1 m. The seminar report on selfcompacting concrete which explains the mix design, advantages and disadvantages, applications, properties,process of making selfconsolidating concrete, theoretical and experimental studies with test results. Self compacting concrete scc of m40 grade was designed. Self compacting concrete incorporating highvolumes of. The concrete was cast along the entire lengths of the walls to avoid construction joints. Development of scc self compacting concrete scc developed by professor hajime okamuraof kochi university of technology, japan, in1986 during his research, okamura found that the main cause of the poor durability performances of japanese concrete in structures was the inadequate compacting of the.
Introduction selfcompacting 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. 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. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta the properties of fly ash conform to is. There are, however, some differences between the hvfa self compacting concrete and the hvfa concrete designed by canmet. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. Stephen lane senior research scientist introduction in response to the reduction in the skilled labor force in japans construction industry and the consequential reduction in the quality of construction, researchers at the university of tokyo. Self compacting concrete seminar report, ppt, pdf for civil. This standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less. Self compacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. Structural performance properties of hardened self compacting concrete 1.
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