Self compacting concrete ppt civil engineering seminars. Self consolidating concrete overview of scc the concrete. It is the ability of scc to flow into all spaces within the formwork under its own weight. It meets the demands placed by the requirements of speed and quality in concrete construction. Self consolidating concrete or self compacting 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. The utilisation of recycled concrete aggregate rca in self compacting concrete scc has the potential to reduce both the environmental impact and financial cost associated with this increasingly popular concrete type. Selfcompacting concrete scc as the name implies that the concrete requiring a very little or no vibration to fill the form homogeneously.
Topflow the ultimate freeflowing, selfcompacting concrete. Self compacting concrete is a fluid mixt ure suitable for placing in structures. In beginning of1983, the problem of the durability of concrete structures was a major problem in japan. Although scc is advantageous its processability in hot climate regions is not well understood and is the main topic of this investigation.
Highly fluid, topflow is the ultimate self compacting concrete. By the early 1990s, japan has developed and used scc. Ability to flow or deform under its own weight with or without obstructions and the ability to remain homogeneous while doing so. Can be produced in structural and excavatable by hand or machine forms, making it ideal for use around utilities. Hello sujay, i am unable to download the ppt you have shared. 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. 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.
There was a decrease in skilled workers in japan, which thus lead to reduction in quality of construction. Self consolidating concrete scc is recognized as one of the greatest advances in the concrete industry. Selfcompacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. 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. 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. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. The constituent materials, used for the production of selfcompacting concrete scc shall generally comply with the requirements of en 206. Self compacting concrete seminar report, ppt, pdf for civil. Self compacting concrete ppt free download as powerpoint presentation. Further, compressive strength at the ages of 7, 28, and 90 days was also determined and results are included here. We used similar compositions of scc and cc to study the fresh cement workability.
Self compacting fiber reinforced concrete powerpoint. As of the year 2000, scc used for prefabricated products precast members and ready mixed concrete castinsitu in. While conventional compacted concrete has its limitations with placement often requiring considerable manpower, machinery and time, topflow provides solutions, fast. First, the features of japanese and chinese methods are discussed, in which the packing of sand and gravel plays a major role. Selfcompacting concrete scc is widely recognized as a fundamental revolution in concrete technology. A simple tool for self compacting concrete mix design. Hence to overcome these defects the self compacting concrete is used. Aug 06, 20 cemflow is a range of highly specialised self compacting readymixed concrete formulations, each presenting significant advantages over equivalent traditional concrete. Selfcompacting concrete is a fluid mixt ure suitable for placing in structures. A free powerpoint ppt presentation displayed as a flash slide show on. All types of cement conforming to en 197 are suitable. Here, the grading and packing of all solids in the concrete mix serves as a basis for the development of new concrete mixes.
Self compacting concrete composite material concrete. Selfcompacting concrete development must ensure a good balance between deformability and stability. It is highly flowable, nonsegregating concrete that can spread into place, fill formwork and encapsulate the reinforcement without any mechanical consolidation. Feb 03, 2014 a brief introduction to use of geopolymer zero cement concrete with practical on site applications. One such latest generation concrete is self compacting concrete scc. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Development of scc self compacting concrete scc developed by professor hajime. Self compacting concrete ppt concrete cement scribd. The concrete was cast along the entire lengths of the walls to avoid construction joints.
A concrete mix can only be classified as self compacting concrete if the requirements for all the following three workability properties are fulfilled. Self compacting concrete basic principles of scc and properties of hardened concrete requirements and mode of action of scc mix design and mixing of. The test results for acceptance characteristics of self compacting concrete such as slump flow. Ppt self compacting concrete with metakaolin and flyash. Final report evaluation of selfconsolidating concrete celik. Using new admixtures and some mix modifications, we can now produce concrete that flows easily without segregating where the coarse aggregate separates from the cement paste. Selfcompacting concrete procedure for mix design from. Most revolutionary development in concrete construction for several decades. Developed initially in japan in 1980s to offset the growing shortage of skilled labour. Ppt self compacting concrete powerpoint presentation. Project report study on self compacting concrete using. Materials for selfcompacting concrete the constructor.
For further information or assistance, please find contact details on linkedin. Flowing consistency, high performance, uniform quality. The materials shall be suitable for the intended use in concrete and not contain harmful ingredients in such quantities that may be detrimental to the quality or the durability of the concrete, or cause corrosion of the reinforcement. Experimental study on selfcompacting concrete using flyash and metakaolin under the guidance of by asst. It uses super plasticisers and stabilizers to significantly increase the ease and rate of flow.
Download the latest pdf and ppt on slideshare for civil projects. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. P,india is used as additives according to astm c 618 5. This paper addresses experiments and theories on selfcompacting concrete. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. However working on the parameters which affect the basic properties of self compacting concrete such as plastic viscosity, deformability, flowability and resistance to segregation, self compacting concrete may be proportioned. Is 4562000 code of practice for plain and reinforced concrete 3rd 6. As per is4562000 6, cement is replaced by weight of material. Methods of testing self compacting concrete workability. In the mix design of scc, the relative proportions of key. A simple mix design method for selfcompacting concrete, cement and concrete research 2001.
However, to date limited research exists exploring the use of coarse rca in scc. Applications self compacting concrete has been used in bridges and even on precast sections. The paper presents an experimental procedure for the design of self compacting concrete mixes. Also, compactibility is affected by the characteristics of materials and the mix proportions. Conventional concrete tends to present a problem with regard to adequate consolidation in thin sections or areas of congested reinforcement, which leads to a large volume of entrapped air voids and compromises the strength and durability of the concrete. Selfconsolidating concrete or selfcompacting concrete commonly abbreviated to scc is a concrete mix which has a low yield stress, high deformability, good. Ppt self compacting concrete powerpoint presentation free to. Self compacting concrete seminar report, ppt, pdf for. Self compacting concrete scc should present compatible quality and cost with conventional concrete cc. Selfcompacting high performance international, vol. 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. The work presented in this paper seeks to build on the existing knowledge in this area by. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars.
Self compacting concrete scc, also known asself consolidating concrete, is. One of the most remarkable projects built using self compacting concrete is the akashi kaikyo suspension bridge, japan in this project the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away. The composition in addition to cement and water, consists of high amount of super plasticizer, high powder content and a viscosity modifying agent. Self compacting fiber reinforced concrete powerpoint presentation download free. Therefore, large volumes of fly ash, partially in substitution of cement and partially as filler, can be employed in producing self compacting concrete. For creation of durable concrete skilled workers are required.
Thus scc eliminates the vibration for the compaction of concrete without affecting its engineering properties. 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. Selfcompacting geopolymer concrete video presentation youtube. Whatever the challenge, all must be completed on time and onbudget. Properties of selfcompacting concrete with recycled coarse. Scribd is the worlds largest social reading and publishing site. 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. Scc is modern innovation does not require vibration for placement and compaction. This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. Self compacting concrete is a recent development that shows potential for future applications. Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. 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. There fore each self compacting concrete has to be designed for the particular structure to be constructed. Scc stands for self compacting concrete or self consolidating concrete. Self compacting concrete scc it uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. Flowable fill is a self leveling, self compacting backfill material. Pdf selfcompacting concrete procedure for mix design.
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