An overview of some development in concrete technology. Whatever the challenge, all must be completed on time and onbudget. It is a highly flowable, nonsegregating concrete that can. Scribd is the worlds largest social reading and publishing site. 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 without external compaction, and thereafter until. The spread slump flow of scc typically ranges from 1 to 32 inches depending on the requirements for the project. Self compacting concrete an overview sciencedirect topics. Self compacting fiber reinforced concrete scfrc is the one where fibres are added to the self compacting concrete, which is able to flow under its own weight, and completely fill the formwork and encapsulate the reinforcement, while maintaining homogeneity and can consolidate without the need for vibration compaction. The european guidelines for self compacting concrete 1 introduction self compacting concrete scc is an innovative concrete that does not require vibration for placing and compaction.
Powered by create your own unique website with customizable templates. Jul 09, 2018 self compacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Development, applications and investigations on self compacting concrete mac eteli happiness civil engineering department niger. 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. 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. Self compacting fiber reinforced concrete civil ppt seminar. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. It does not require mechanical compaction and thus saves time, labour, equipment requirements and formwork damage. It uses super plasticisers and stabilizers to significantly increase the ease and rate of flow. Study of lightweight concrete behaviour lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities such as nailbility and lessened the dead weight. Recycled aggregate self compacting concrete prashant o.
Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Properties of selfcompacting concrete with recycled. Due to its large file size, this book may take longer to download. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. Use of fly ash in self compacting concrete scc vgb powertech. Aug 06, 20 cemflow is a range of highly specialised self compacting readymixed concrete formulations, each presenting significant advantages over equivalent traditional concrete.
Due to its properties and composition, the selfcompacting concrete is described here as being one of the future. In this project, the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away. Therefore, it is essential to have a proper mix design. O scc was first developed in japan around the year 1980. 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. Self compacting concrete seminar report, ppt, pdf for civil. The concrete was cast along the entire lengths of the walls to avoid construction joints. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building. Such concrete should have a relatively low yield value to ensure high flow. 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.
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. Self compacting concrete a concrete that gets compacted by itself totally covering reinforcement in the formwork is called self compacting concrete scc. A free powerpoint ppt presentation displayed as a flash slide show on id. It can be used in precast applications or for concrete. A proper design of a self compacting concrete requires considerably more fines content as compared to the traditional concrete. 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. An increase in the flowability of concrete is known to increase the risk of segregation. Self compacting concrete test for the exposed concrete wall. It is a building material that flows and spreads effortlessly, reduces worksite hassles and saves you time every day. However, to date limited research exists exploring the use of coarse rca in scc. For creation of durable concrete skilled workers are required. Shear walls are constructed to counter the effects of lateral load acting on a structure.
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. Self compacting concrete seminar report, ppt, pdf for. Ppt selfconsolidating concrete applications powerpoint. Scc stands for self compacting concrete or self consolidating concrete. This recommendation specifies the performance required of selfcompacting concrete, primarily the self compactability, and provide verification and inspection methods. Methods of testing self compacting concrete workability. This recommendation specifies the performance required of self compacting concrete, primarily the self compactability, and provide verification and inspection methods. 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.
It meets the demands placed by the requirements of speed and quality in concrete construction. The work presented in this paper seeks to build on the existing knowledge in this area by. Various workability tests methods are available for self compacting concrete such as slump flow tests, vfunnel test, lbox test, ubox test, fill box test etc. Scc, was first introduced in the late 1980s by japanese researchers, is highly workable concrete that can flow under its own weight through restricted. Modern concrete, such as self compacting concrete, underwater concrete, or shotcrete require very specific rheological properties. Selfcompacting concrete scc for prestressed bridge girders. Properties of selfcompacting concrete with recycled coarse. Self compacting concrete is a recent development that shows potential for future applications. Self compacting fiber reinforced concrete powerpoint. Therefore, large volumes of fly ash, partially in substitution of cement and partially as filler, can be employed in producing self compacting concrete. The self compacting concrete differs from conventional concrete in the following three characteristic features, namely, i appropriate flowability, ii nonsegregation, and iii no blocking tendency. Materials for selfcompacting concrete self compacting has material requirements same as conventional concrete, but it requires admixtures to enhance the workability. Introduction selfcompacting concrete scc, which flows under its own weight and does not require any external vibration for compaction, has revolutionized concrete placement.
The ingredients for self compacting concrete are similar to conventional concrete. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. College of engineering, pusad 445204 2 secretery, maharashtra state board of technical education, mumbai 51 abstract an experimental inves tigation was conducted on self compacting concrete with different. Placing and curing selfcompacting concrete in hot climates carlos f. Scc do not depend in a single test, but it depends in all of the four tests and it must pass all of them to be called self compacting concrete. Selfcompacting concrete by s and corneliu bobliana iure abstract. This is a sample project report on self compacting concrete. There fore each selfcompacting concrete has to be designed for the particular structure to be constructed. Apr, 2018 self compacting concrete test for the exposed concrete wall.
Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. The 1995 hubble photo that changed astronomy duration. In beginning of1983, the problem of the durability of concrete structures was a major problem in japan. It is highly flowable, nonsegregating concrete that can spread into place, fill formwork and encapsulate the reinforcement without any mechanical consolidation. Selfcompacting concrete applications and advantages. Self compacting concrete scc is being used worldwide because of its very attractive properties in the fresh state as well as after hardening. One of the most remarkable projects built using self compacting concrete is the akashikaikyo suspension bridge. Self compacting concrete is considered some sort of concrete that could be put and also. Self compacting concrete retains all its properties and is always very stable. Pdf selfcompacting concrete procedure for mix design. Tests, such as slump flow, vfunnel etc, are used to determine the filling ability of fresh concrete. 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.
The filling ability of self compacting concrete is of an interesting nature. Okamura from the university of tokyo japan is mainly responsible for initiating the development of scc. The addition of vmas allows a reduction of the amount of fine powder materials in concrete at the same time that its stability, cohesion, and robustness are. 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 is different to ordinary concrete, which needs to be vibrated, by is ability to fill every kind of formwork without any influence from. Materials for selfcompacting concrete the constructor. Hence to overcome these defects the self compacting concrete is used. The paper presents the characteristics of the selfcompacting concretes, their advantages and disadvantages when they are used in buildings. Design and application of self compacting concrete. A measure of the ease by which fresh concrete can be placed and compacted. The method for achieving selfcompacting ability involves limited aggregate content low waterpowder ratio employment of superplasticizer the method for achieving self compactability involves not only high deformability of paste or mortar, but also resistance to.
A self compacting concrete has the properties such as filling ability, passing ability and segregation resistance. If you are unable to download any of the topics mentioned below, you can mail to the admin to get the soft copy of the topic of your interest. The main aim of this study is to investigate the fresh and mechanical properties of selfcompacting. The method for achieving self compacting ability involves limited aggregate content low waterpowder ratio employment of superplasticizer the method for achieving self compactability involves not only high deformability of paste or mortar, but also resistance to. Concrete self compacting concrete certified concrete firth. Scc selfconsolidating concrete fresh concrete that can flow around reinforcement and consolidate within formwork under its own weight without vibration and. Self compacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Agilia is a self compacting concrete that reduces construction time and cost. Design and application of self compacting concrete free download as powerpoint presentation. Ppt concrete technology powerpoint presentation free. 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. In general, scc is concrete made with conventional concrete materials and, in some cases, with a viscositymodifying admixture vma.
The method for achieving selfcompacting ability involves. Underwater concrete an overview sciencedirect topics. The reason of this project is to design a suitable scc mix and evaluate it by 4 tests which are slump flow, vfunnel, lbox, and jring and then determine the strength of it by casting the concrete in cubes and then put it in the compression machine and measure the strength after 7days curing. Highly fluid, topflow is the ultimate self compacting concrete. Shear walls are vertical elements of the horizontal force resisting system. It can be used in precast applications or for concrete placed on site. It consists of cement, coarse and fine aggregates, water, mineral and chemical admixtures. A basic information on different admixture for concrete which can be used to improved workability higher slump at given wc ratio or reduction of wc ratio for a given concrete workability slump. Here, i attach a powerpoint presentation created by me for a competition held by ultratech. The method for achieving self compacting ability involves limited aggregate content low waterpowder ratio employment of superplasticizer the method for achieving self compactability involves not only high deformability of paste or mortar, but also. When shear walls are designed and constructed properly, and they will have.
Types of materials required and their properties for self compacting concrete is discussed. The main aim of this study is to investigate the fresh and mechanical properties of self compacting. Following are the materials for self compacting concrete. We hereby declare that the 8th semester project report for the project entitled study on selfcompacting concrete using industrial waste materials submitted in. All these properties of self compacting concrete is very incompatible bui, 1999, pg. Mar 16, 2016 o self compacting concrete is an innovative concrete that does not require vibration for placing and compaction. Concrete technology is the property of its rightful owner. Results and conclusion mixture design and evaluation of. Self compacting concrete has been used in bridges and even on precast sections.
Selfconsolidating concrete scc is an innovative material used successfully throughout the world. While conventional compacted concrete has its limitations with placement often requiring considerable manpower, machinery and time, topflow provides solutions, fast. Pls send me self compacting concrete soft copy april 9, 2017 at 11. Self compacting concrete composite material concrete. Download civil,construction engineering seminar topic ppt. There fore each self compacting concrete has to be designed for the particular structure to be constructed. Sep 26, 20 self compacting concrete seminar ppt authorstream presentation. Self compacting concrete scc is an innovative concrete that does not requires vibration for placing and compaction. Self compacting concrete free download as powerpoint presentation. 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.
Researchers conducted an experimental program to investigate the viability of producing self consolidating concrete scc using locally available aggregate, and the viability of its use in the production of precast prestressed concrete bridge girders for the state of minnesota. Scc self consolidating concrete fresh concrete that can flow around reinforcement and consolidate within formwork under its own weight without vibration and. Selfcompacting concrete scc it uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. By the early 1990s, japan has developed and used scc. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. We hereby declare that the 8th semester project report for the project entitled study on self compacting concrete using industrial waste materials submitted in. There was a decrease in skilled workers in japan, which thus lead to reduction in quality of construction. 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. 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.
It is highly flowable, selflevelling, self defoaming and coahesive and can be handled without segregation. Topflow the ultimate freeflowing, selfcompacting concrete. Project report study on self compacting concrete using. The method for achieving self compacting ability involves. Selfcompacting concrete scc v introduction to selfcompacting concrete. Powerpoint presentations and detailed seminar reports. Materials, properties and applications 1st edition.
This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. Selfconsolidating concrete or selfcompacting concrete commonly abbreviated to scc is a concrete mix which has a low yield stress, high deformability, good. Modani 1, vinod m mohitkar 2 1 assistant professor, b. It is the ability of scc to flow into all spaces within the formwork under its own weight. Development, applications and investigations on selfcompacting concrete mac eteli happiness civil engineering department niger.
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