Self compacting concrete scc is becoming a popular form of concrete usage in a range of applications throughout the world. Performance of glass fibre reinforced self compacting concrete 1manjunatha j. 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. Scc, was first introduced in the late 1980s by japanese researchers, is highly workable concrete that can flow under its own weight. Selfcompacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. A practical mix design method for selfcompacting concrete. Optimum mix proportioning of high strength self compacting. Highperformance superplasticiser glenium 51 was used the concrete mixes.
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. Scc can be made from any of the constituents that are generally used for structural concrete. The heat of hydration for self compacting concrete is bigger and the time for when. However, even nowadays, there is still a lack of knowledge about scc, especially regarding the few practical mix design methods available. Importantly, the investigation aims to highlight the opportunities for using scc in south africa. Mix design requirements for self compacting concretescc. The utilisation of selfcompacting concrete scc is growing rapidly. Selfcompacting concrete suppliers scc the concrete.
Introduction selfcompacting concrete scc, which flows under its own weight and does not require any external vibration for compaction, has revolutionized concrete placement. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. By the early 1990s, japan has developed and used scc. Selfcompacting concrete scc for prestressed bridge girders 7. Final report evaluation of selfconsolidating concrete celik. Development of scc self compacting concrete scc developed by professor hajime. This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. Mix design of self consolidating concretes exercise 8 exercise 8.
A study of mix design and durability of self compacting concrete. Self compacting concrete seminar report, ppt, pdf for. Materials for selfcompacting concrete the constructor. This recommendation specifies the performance required of selfcompacting concrete, primarily the selfcompactability, and provide verification and inspection methods. 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. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. Specific gravity of cement, metakaolin, fly ash, coarse aggregate and fine aggregate.
Sccs high performances can lead to relevant changes in design, affecting. 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. For delivery of highquality selfcompacting concrete, contact the concrete network the largest network of concrete suppliers operating throughout the uk. Self compacting concrete incorporating highvolumes of class f. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta figure 2. You can watch the video here, or watch it in the quality mix tutorials.
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. Wherever you are in the country, our network uses a fleet of modern vehicles to travel directly to your site, promising a prompt and reliable service to each and every one of our customers. Selfconsolidating concreteconsolidating concrete for. Specifications and guide lines for self compacting concrete, feb 2002. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity. Self compacting concrete, born in japan in late 80s to solve problems of. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format.
Acbm organized a research team in the fall of 2004 to coordinate ongoing research activities toward three theme questions. This paper addresses experiments and theories on selfcompacting concrete. Okamura to achieve durability of structures with low. A simple tool for self compacting concrete mix design. The center for advanced cement based materials white. Self compacting concrete can be assessed by testing on mortars. Performance of glass fibre reinforced self compacting concrete. A simple tool has been designed for self compacting concrete scc mix design with 29% of coarse aggregate, replacement of cement with metakaolin and. A study of mix design and durability of self compacting. Similarly a mix design methodology for the design of self compacting concrete with slag was also proposed by dinakar et al. Pdf mix design of selfcompacting concretea new approach.
Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. 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. Performance of glass fibre reinforced self compacting. First, the amount of aggregate required was determined, and the paste of binder was then filled into the void of. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing.
It can be poured quickly, flowing and spreading effortlessly. Selfcompacting concrete procedure for mix design article pdf available in leonardo electronic journal of practices and technologies 712 june 2008 with 35,326 reads how we measure reads. Concrete international, vol 22, no4, pp, 34, april 2000. 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. College, gujarat technological university gujarat, india. Selfcompacting concrete scc for prestressed bridge girders. Mix design of self compacting concrete based on ultra high. Self compacting concrete scc, also known asself consolidating concrete, is.
Despite its increased fluidity, self compacting concrete maintains the high quality demanded by todays building industry, presenting both flexibility as. When selfcompacting concrete becomes so widely used that it is seen as the standard concrete rather than a special concrete, we. The requirements from the european guidelines for self compacting concrete for fresh selfcompacting concrete shall be measured by means of the following tests for characteristic. Selfcompacting concrete scc is one of the key research directions of the high performance concrete industry because it flows under its own weight, can.
The aim of this study is to find out an optimum mix proportioning of high strength selfcompacted concrete for different grades 30mpa 80mpa. Concrete mix design for high strength selfcompacting. This mix is tested for self compacting, flowing ability and other scc desired properties. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies. 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. Self compacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. Recommendations for the use of selfcompacting concrete. Pdf selfcompacting concrete procedure for mix design. Self compacting concrete scc for prestressed bridge girders 7. This paper proposes a new mix design method for selfcompacting concrete scc. 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. As per is4562000 6, cement is replaced by weight of material. Experimental study on the workability and stability of steel slag. In this research, the design of mix mortar flow with ultrahigh compressive strength was made by the type i cement, i.
Pdf selfcompacting concreteprocedure for mix design. The mix designed as per the requirements are tested before using it in construction. Self compacting concrete and admixtures aggregate research. Because of the excellent filling ability, scc fills all the spaces in the formwork avoiding the formation of honeycombing and finally resulting in high quality concrete. Fifteen concrete mixtures were prepared in the laboratory using the threefactor central composite design method. The concrete was cast along the entire lengths of the walls to avoid construction joints.
Material properties for scc mix design tool the following material properties for the scc mix design tool are to be determined as shown in table1. Lbox test experimental procedure the procedure adopted in the study is as follows 1 using japanese method of mix design, initial mix design was carried out at coarse. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. The concrete community of various european countries intensely researches its application and implements experiences. All types of cement conforming to en 197 are suitable. There are, however, some differences between the hvfa self compacting concrete and the hvfa concrete designed by. 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.
Magnel laboratory for concrete research 3 selfcompacting concrete. 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 obstructions by its own weight and without the need of vibration. Mix compositions for flowingconcrete and selfcompacting concrete. Highly fluid, agilia is the ultimate selfcompacting concrete. Roadstone self compacting concrete scc is a highly fluid and flowable non segregating concrete that requires no mechanical vibration.
Department of civil engineering university of minnesota. Expan0ding the possibility of concrete design and placement. Scheme of compacted aggregate and concrete mixtures. 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. We posted a new tutorial video in our youtube channel. Selfcompacting concrete civil engineering community. Testing and mix design method of self compacting concrete.
The notable difference of scc from normal concrete is that, the scc has more. Self compacting concrete scc mix design must involve key practices to achieve the requirements of quality and durable mix. However, even nowadays, there is still a lack of knowledge about scc, especially regarding the few practical mix design methods. P,india is used as additives according to astm c 618 5. Concrete production and testing was covered in bs en 2069 april 2010 concrete. Introduction the development of self compacting concrete scc by professor hajme 1 okamura and k.
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. 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. The composition of self compacting concrete is same of. In the step by step mode you tell the software the concretes. Self compacting concrete has left his early stage of laboratory studies and has now. Ozawa in 1986 has made an amazing impression on the construction industry by overcoming some of the complications associated with. 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 self compacting concrete mix design must involve key practices to achieve the requirements of quality and durable mix. Self compacting concrete development must ensure a good balance between deformability and stability. It is the responsibility of the design author or, if appropriate, the project management to specify the most appropriate type of selfcompacting concrete in each. Nchrp report 62pnchrp report 62p self consolidating concrete for precast bridge elementsself consolidating concrete for precast bridge elements proceedings of the fifth international rilem symposium on scc sept. This standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less. This investigation considers the development of the technology and use of scc. Selection of materials and mix design 9 stateoftheart standard materials for use in concrete are suitable for scc. Selfcompacting concrete scc is becoming a popular form of concrete usage in a range of applications throughout the world. A simple mix design method for selfcompacting concrete. In 1988, self compacting concrete scc a highfl uidity concrete that maintains its stability was developed in japan. Self compacting concrete, mix design, plastic stage, compressive strength, rice husk ash 1. The utilisation of self compacting concrete scc is growing rapidly. Selfcompacting concrete scc is one of the most important developments in the area of construction industry in recent years, due to many advantages it possess both in the fresh and the hardened state. 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 composition of self compacting concrete is similar to that of normal concrete, that is, cement, fine and coarse aggregates, water, mineral and chemical admixtures. Numerous trial mixes have to be adopted including mineral admixtures like fly ash. 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 obstructions by its own weight and without the need of vibration. The center for advanced cement based materials white paper. From the above discussion it is obvious that as such there is no specific mix design.
Selfcompacting concrete was first developed 1988 in order to achieve durable concrete structures. This specification and guideline utilises efnarcs broad practical experience with scc to provide a framework for design and use of high quality scc. Self compacting concrete scc non segregating concrete. The aim of paper was to develop a new mix design method for self compacting concrete. Self compacting concrete seminar report, ppt, pdf for civil. In 1988, selfcompacting concrete scc a highfl uidity concrete that maintains its stability was developed in japan. Initially the aggregates ratio was determined and the voids of aggregates were then filled with the paste of binders. Mix compositions for flowing concrete and self compacting concrete.
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