The present investigation is an attempt to evaluate the efficiency of metakaolin in self compacting concrete at various replacement percentages, through the efficiency concept proposed earlier for the design of high strength metakaolin concretes and suggest a methodology for incorporating metakaolin in self compacting concrete. The development of self compacting concrete scc by. The center for advanced cement based materials white paper. In general, concrete mixes are designed in order to achieve a defined workability, strength and durability. 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.
The basic properties to be achieved by an scc mix is flowability, passing ability, strength, and segregation resistance. Self compacting concrete uses self consolidating concrete. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Test method for passability through spaces using ushaped or boxshaped apparatus test method for selfcompactability 1. Standard test methods for selfcompacting concrete i. Introduction selfcompacting concrete scc, which flows under its own weight and does not require any external vibration for compaction, has revolutionized concrete placement. Such concrete should have a relatively low yield value to ensure high flow. Mix design self consolidating high performance concrete. Also, limited studies with steel fibre reinforced selfcompacting concrete using msand and. Approaches to mix design and measurement of workability for self compacting concrete josef petrus jooste a dissertation submitted to the faculty of engineering and the built environment, university of the witwatersrand, in fulfillment of the requirements of the degree of master of science in engineering. Scc, was first introduced in the late 1980s by japanese researchers, is highly workable concrete that can flow under its own weight through restricted.
First, the amount of aggregate required was determined, and the paste of binder was then filled into the void of. Self compacting concrete scc mix design must involve key practices to achieve the requirements of quality and durable mix. Pdf self compacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. The mix designed as per the self compacting concrete mix design must involve key. First, the amount of aggregates required is determined, and the paste of binders is then filled into the voids of aggregates to ensure that the concrete thus obtained has flowability, self. Evaluation of selfconsolidating concrete celik ozyildirim, ph. The ingredients for self compacting concrete are similar to conventional concrete. Concrete producers must retrain their eyes for this very fluid mixture as it turns corners and fills forms. We hereby declare that the 8th semester project report for the project entitled study on self compacting concrete using industrial waste materials submitted in. A numerical model for selfcompacting concrete flow.
Selfcompacting concrete was first developed 1988 in order to achieve durable concrete structures. 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. Magnel laboratory for concrete research 3 selfcompacting concrete. Concrete mix design one of the ultimate aims of studying the various properties of the materials of concrete, plastic concrete and hardened concrete, is to enable a concrete technologist to design a concrete mix for a particular strength and durability. Concrete mix design for high strength selfcompacting. Concrete mix design for m30 grade for self compacting. We posted a new tutorial video in our youtube channel. Self compacting concrete and admixtures 23rd march 2010 14th march 2016 self compacting concrete is a type of concrete that is highly fluid allowing it to self level, penetrate into complicated areas and formwork, through complex reinforcement and much more. It is able to flow and consolidate under its own weight, completely filling the formwork even in the presence of dense reinforcement. A simple tool for self compacting concrete mix design.
Pdf selfcompacting concrete procedure for mix design. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete. The center for advanced cement based materials white. Self compacting concrete and admixtures aggregate research. The test results for acceptance characteristics of selfcompacting concrete such as slump flow. Design and application of self compacting concrete concrete. The composition of self compacting concrete is similar to that of normal concrete, that is, cement, fine and coarse aggregates, water, mineral and chemical admixtures. Types of materials required and their properties for selfcompacting concrete is discussed. A study of mix design and durability of self compacting concrete mohammed abdul hameed civil engineering december 2005 abstract a self compacting concrete scc is the one that can be placed in the form and can go through. Specifications and guide lines for self compacting concrete, feb 2002.
This paper proposes a new mix design method for self compacting concrete scc. Scc looks very different from conventional concrete while mixing. The concrete was cast along the entire lengths of the walls to avoid construction joints. It can be used in precast applications or for concrete placed on site. A concrete mix can only be classified as self compacting concrete if the requirements for all the following three workability properties are fulfilled. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing.
Learn how to design a self compacting concrete scc in less than 5 minutes using quality mix, the mix design calculator module by concrete quality. Mix design of self consolidating concretes exercise 8 mycourses. Systematic mix design procedure is required for the production of quality scc. Mix design of self compacting concrete based on ultra high. Expan0ding the possibility of concrete design and placement. Acbm organized a research team in the fall of 2004 to coordinate ongoing research activities toward three theme questions. Mix design requirements for self compacting concretescc. A simple tool has been designed for self compacting concrete scc mix design with 29% of coarse aggregate, replacement of cement with metakaolin and. Scc can be made from any of the constituents that are generally used for structural concrete. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. The highlight of this paper is, simplest process of mix design according.
The concrete community of various european countries intensely researches its application and implements experiences. Compaction of concrete is often seen as the achilles. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies. Simplified mix design procedures for steel fibre reinforced. The utilisation of self compacting concrete scc is growing rapidly. When selfcompacting concrete becomes so widely used that it is seen as the standard concrete rather than a special concrete, we. This paper deals with the mix design of self compacting concrete. Methods of testing self compacting concrete workability. The present investigation is an attempt to evaluate the efficiency of metakaolin in selfcompacting concrete at various replacement percentages, through the efficiency concept proposed earlier for the design of high strength metakaolin concretes and suggest a methodology for incorporating metakaolin in selfcompacting concrete. This paper proposes a new mix design method for selfcompacting concrete scc. Concrete mix design definition concrete mix design is defined as the appropriate selection and proportioning of constituents to produce a concrete with predefined characteristics in the fresh and hardened states. This recommendation specifies the performance required of self compacting concrete, primarily the self compactability, and provide verification and inspection methods.
It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. 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. Selfcompacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. Final report evaluation of selfconsolidating concrete celik. Efnarc is that the european federation dedicated to specialist construction design and analysis of self compacting concrete using nansu method 1. Standard test methods for self compacting concrete i. The composition of self compacting concrete is same of. Scope this standard covers the test method for passability through spaces of self compacting concrete.
Mix design of self consolidating concretes exercise 8 exercise 8. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity. The notable difference of scc from normal concrete is that the. The composition of self compacting concrete is same of normal concrete, that is, cement, fine and coarse aggregates, water, mineral and chemical admixtures. Selfconsolidating concrete alias selfcompacting concrete scc is a concrete mixture that can flow into very complex forms with various reinforcing bars rebar congestion and leaves no voids. Concrete international, vol 22, no4, pp, 34, april 2000. This specification and guideline utilises efnarcs broad practical experience with scc to provide a framework for design and use of high quality scc. Concrete mix design for m30 grade for self compacting concrete concrete mix design for m30 grade concrete with ggbs for self compacting application is as follows. Due to its properties and composition, the selfcompacting concrete is described here as being one of the future. The paper presents the characteristics of the selfcompacting concretes, their advantages and disadvantages when they are used in buildings. Dec 24, 2017 concrete mix design for m30 grade for self compacting concrete concrete mix design for m30 grade concrete with ggbs for self compacting application is as follows.
For creation of durable concrete skilled workers are required. Scope this standard covers the test method for passability through spaces of selfcompacting concrete. 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. Pdf mix design of selfcompacting concretea new approach. Selfcompacting concrete by s and corneliu bobliana iure abstract. Self compacting concrete, mix design, that it avoids having to repeat the same kind of quality plastic stage. Opc cement 53 grade 290 kg ggbs 260 kg water cement ratio wc 0. First, the amount of aggregates required is determined, and the paste of binders is then filled into the voids of aggregates to ensure that the concrete thus obtained has flowability, self compacting ability and other desired scc properties. You can watch the video here, or watch it in the quality mix tutorials. Scc, was first introduced in the late 1980s by japanese researchers, is highly workable concrete that can flow under its own weight. A study of mix design and durability of self compacting concrete. Test method for passability through spaces using ushaped or boxshaped apparatus test method for self compactability 1.
Pdf selfcompacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. Types of materials required and their properties for self compacting concrete is discussed. Started in japan, numbers of investigations were reported worldwide on the mix design of scc, its microstructure and durability aspects. Self compacting concrete and admixtures 23rd march 2010 14th march 2016 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. The utilisation of selfcompacting concrete scc is growing rapidly. 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. The relative proportions of key components are considered by volume rather than by mass. Pdf this paper deals with the mix design of selfcompacting concrete. There was a decrease in skilled workers in japan, which thus lead to reduction in quality of construction. Self compacted concrete is highly engineered concrete with much higher fluidity without segregation and is capable of filling every corner of formwork under its self weight. Selfcompacting concrete civil engineering community. Working with scc neednt be hit or miss precast concrete.
Approaches to mix design and measurement of workability for selfcompacting concrete josef petrus jooste a dissertation submitted to the faculty of engineering and the built environment, university of the witwatersrand, in fulfillment of the requirements of the degree of master of science in engineering. By the early 1990s, japan has developed and used scc. This is a sample project report on self compacting concrete. A simple mix design method for selfcompacting concrete. Admixture experts and precasters provide important tips to work successfully with selfconsolidating concrete scc. The conditions that prevail at the site of work, in particular. Design and application of self compacting concrete free download as powerpoint presentation. Materials for selfcompacting concrete the constructor. Traditionally, concrete with the fluidity of scc has had a very high watertocement ratio, which would lower compressive strengths and compromise. Some precasters report that working with selfconsolidating concrete scc can be a hit or miss affair. Selfcompacting concrete procedure for mix design from. Self compacting has material requirements same as conventional concrete, but it requires admixtures to enhance the workability. The selfcompacting concrete european project group was founded in january 2004 with.
The notable difference of scc from normal concrete is that, the scc has more. This recommendation specifies the performance required of selfcompacting concrete, primarily the selfcompactability, and provide verification and inspection methods. The european guidelines for selfcompacting concrete. A study of mix design and durability of self compacting concrete mohammed abdul hameed civil engineering december 2005 abstract a selfcompacting concrete scc is the one that can be placed in the form and can go through. Although poor compaction is not prevalent in the majority of concrete cast today, any development that reduces the risks must be considered as. The highlight of this paper is, simplest process of mix design according to indian standard code of mix design is10262 and it. A practical mix design method for selfcompacting concrete. It is the ability of scc to flow into all spaces within the formwork under its own weight. Self compacting concrete composite material concrete. 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. Testing and mix design method of self compacting concrete. The self compacting concrete, which contains more fines content, is proved to be more durable. It can be arranged with its own weight devoid of any mechanical vibration.
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. Self compacting concrete seminar report, ppt, pdf for civil. Learning outcomes understanding the basics of scc being familiar with the requirements and limits of designing a scc concrete mix implementing the scc concrete mix design tool excel work sheet. In beginning of1983, the problem of the durability of concrete structures was a major problem in japan. Self consolidating concrete is an emerging class of concrete materials that offers great potential for improved ease of placement, increased rate of construction, and reduced cost through reduced time and labor. The mix designed as per the requirements are tested before using it in construction. In this research, the design of mix mortar flow with ultrahigh compressive strength was made by the type i cement, i. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta concrete that can flow under its own weight through restricted sections without segregation and bleeding. To be considered self compacting, concrete must flow easily under its own weight, so its yield stress must be very low.