Self compacting concrete with recycled coarse aggregates. The ingredients for selfcompacting concrete are similar to conventional concrete. Materials for selfcompacting concrete the constructor. By the early 1990s, japan has developed and used scc. Mar 01, 2000 self compacting concrete was first developed 1988 in order to achieve durable concrete structures. Its commonly abbreviated as scc and defined as the concrete which can placed and compacted into every corner of a formwork. Hence to overcome these defects the self compacting concrete is used.
Allow the concrete to flow through the obstacle into room b, and leave to stand until the concrete stops. 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. Selfcompacting concrete civil engineering community. Scc has several advantages over normal conventional concrete. Selfcompacting concrete scc can be defined as a fresh concrete. Compressive strength, porosity, chloride penetration, and corrosion of scc were determined. Study of sorptivity of selfcompacting concrete with different chemical admixtures by saeed alsheikh mti university cairo,egypt. Use of scc can also help minimize hearingrelated damages on the worksite that are induced by. Selfcompacting concrete was first developed 1988 in order to achieve durable concrete structures. The utilisation of recycled concrete aggregate rca in selfcompacting concrete scc has the potential to reduce both the environmental impact and financial cost associated with this increasingly popular concrete type. Selfconsolidating concrete or selfcompacting 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.
Selfcompacting concrete is a type of concrete that gets compacted under its selfweight. Selfcompacting concrete scc is a flowing concrete mixture that is able to consolidate under its own weight. When shear walls are designed and constructed properly, and they will have. View selfcompacting concrete research papers on academia. Self compacting concrete can be described as a high performance materials that flows under its own self weight, without requiring vibration, to achieve consolidation by completely filling up formworks even when access is hindered by narrow gaps between reinforcement bars. However, to date limited research exists exploring the use of coarse rca in scc. The design mix of self compacting concrete based on nansu method and compressible packing model for m30 grade concrete is prepared. The proper understanding of the effects of elevated temperatures on the properties of scc is necessary. All types of cement conforming to en 197 are suitable. Introduction self compacting 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. International journal of advance engineering and research. Pdf the development of selfcompacting concrete started in japan in. Self compacting concrete an overview sciencedirect topics.
Magnel laboratory for concrete research 62 durability in practice en 206 1 2001. 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. It can flow easily in congested reinforced areas such as in beam column joints. 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. 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 mixtures produced, tested and compared in terms of compressive,split tensile strength and flexural strength with the conventional concrete for 7,14,28 days. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta figure 2. Selfcompacting concrete scc is a wellknown construction material developed in.
It meets the demands placed by the requirements of speed and quality in concrete construction. Hence to overcome these defects the selfcompacting concrete is used. 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. 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. Experimental studies on m30 grade self compacting concrete. Mar 16, 2016 o self compacting concrete is an innovative concrete that does not require vibration for placing and compaction. The common practice to obtain selfconsolidation behaviour in scc is the. Ii issue ivoctoberdecember, 20112218 research article self compacting concrete. This research work presents properties of self compacting concrete after replacement of fine aggregate with powder of waste marble at different percentages 0%, 10%, 20%, 30% 40% and 50%. The demand of self compacting concrete scc is growing rapidly due to the shortage of.
Tech research, department of applied mechanics, s v national institute of technology, surat 395007. Iosr journal of mechanical and civil engineering iosrjmce. Compressive strength of selfcompacting concrete during. Project report study on self compacting concrete using. 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. Journal of engineering research and studies eissn09767916 jersvol. International journal of students research in technology. Materials, properties and applications 1st edition. The european guidelines for self compacting concrete 3 nan su, kungchung hsu, hiswen chai. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies. Investigations on selfcompacted selfcuring concrete using. Selfcompacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration.
View self compacting concrete research papers on academia. Self compacting concrete seminar report, ppt, pdf for civil. Please note that the following pdf file, offered by. Pdf concrete is a mixture of cement, sand, gravel and water which dries.
Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. Scc is known for its excellent deformability, high resistance to segregation, and successful use in congested reinforced concrete structures characterized by difficult casting conditions that do not allow for vibration guneyisi, 2010. The first usable version of selfcompacting concrete was completed in 1988 and was named high performance concrete, and later proposed. Because of the wellcontrolled conditions, the introduction of scc in the precast concrete industry was successful. In most previous studies on selfcompacting concrete, t400 is used to estimate the flow velocity of selfcompacting concrete. 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. Selfcompacting concrete scc is a flowing mixture that consolidates under its own. Properties of selfcompacting concrete with recycled coarse. 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. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. Selfcompacting concrete is a highly flowable, stable concrete which flows readily into places around. Study of sorptivity of selfcompacting concrete with. 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 be handled without segregation or bleeding.
Properties of selfcompacting concrete with recycled. The self compacting concrete is a concrete which flows and settles due to its own weight without segregation and bleeding. A mix design of self compacting concrete with copper slag as. The highly fluid nature of scc makes it suitable for placing in difficult conditions and in section with congested reinforcement. This lead to the development of self compacting concrete scc whose concept was first initiated by japan in the mid of 1980s. Properties of selfcompacting concrete an overview paratibha aggarwal, national institute of technology, kurukshetra, india yogesh aggarwal, national institute of technology, kurukshetra, india s m gupta national institute of technology, kurukshetra, india r siddique, thapar institute of engineering and technology, patiala, india 30th conference on our world in concrete. Six precast prestressed bridge girders were cast using four scc and two conventional concrete mixes. Scc is a high performance concrete that consolidates under its selfweight, and adequately.
Partial replacement of cement with ggbs in self compacting. Index terms self compacting concrete, nansu coefficient, watercement ratio, fly ash, auromix400 super plasticizer, compressive strength. Effect of inert and pozzolanic materials on flow and mechanical. Use of rice huskbark ash in producing selfcompacting concrete. A concrete of next decade 1n r gaywala 2 d b raijiwala address for correspondence 1 student of m.
The concrete was cast along the entire lengths of the walls to avoid construction joints. Selfcompacting concrete procedure for mix design, 24. A mix design of self compacting concrete with copper slag. Innovative solutions for optimization of microstructure composition of selfcompacting concrete for performant realization of precast concrete. Scc is a high performance concrete that consolidates under its self weight, and adequately. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity. Introduction selfcompacting concrete scc is a special kind of innovative concrete, which is exceedingly flowable and nonsegregating concrete, and can be easily placed and.
Pdf selfcompacting concrete procedure for mix design. Placing and curing selfcompacting concrete in hot climates carlos f. The european guidelines for selfcompacting concrete. In all scc mixes compressive strengths of standard cube specimens were comparable to those of traditional vibrated concrete made with similar water cement ratios if anything strengths were higher. Selfcompacting concrete scc has widely been used in many concrete structures of massive or irregular geometry. It is found that, 25% of ggbs can be replaced and strength obtained is comparable to the conventional concrete. Investigations on selfcompacted selfcuring concrete. Selfcompacting concrete scc is being used in highrise buildings and industrial structures which may be subjected to high temperatures during operation or in case of an accidental fire. Ct was partially replaced with ground rice huskbark ash grhba at the dosage levels of 0%40% by weight of binder. An overview of the properties of self compacting concrete. Impact resistance of rubberized selfcompacting concrete.
Substantial research was carried out with regard to the properties of scc. Shear walls are constructed to counter the effects of lateral load acting on a structure. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building. International journal of technical research and applications eissn. The work presented in this paper seeks to build on the existing knowledge in this area by. Self compacting concrete scc, also known asself consolidating concrete, is. In this present works, for m30 grade concrete beam copper slag is. But such concrete was generally of lower strength and difficult to obtain. 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. 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. It consists of cement, coarse and fine aggregates, water, mineral and chemical admixtures. Selfcompacting concrete development must ensure a good balance between deformability and stability. Locally available 16mm size well graded coarse aggregate.
Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Use of rice huskbark ash in producing selfcompacting. As per is4562000 6, cement is replaced by weight of material. A concrete of next decade 1n r gaywala 2 d b raijiwala address for correspondence. Development of scc self compacting concrete scc developed by professor hajime. This paper presents the use of blend of portland cement with rice huskbark ash in producing selfcompacting concrete scc. Selfcompacting concrete is a recent development that shows potential for future applications. 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.
May 14, 2014 this paper presents the use of blend of portland cement with rice huskbark ash in producing self compacting concrete scc. Split tensile strength on selfcompacting concrete containing coal. Selfcompacting concrete scc for prestressed bridge girders. Abstract selfcompacting concrete is a specific type of concrete that can flow only by its own weight and can fill any space while keeping its homogeneity. Mechanical properties of selfcompacting concrete rilem.
Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. Self compacting concrete seminar report, ppt, pdf for. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. Self compacting concrete scc is a flowing concrete mixture that is able to consolidate under its own weight. Self compacting concrete is a recent development that shows potential for future applications. Research paper relation between workability and compressive. Similar to conventional concrete, scc can also be affected. M30 grade of selfcompacting concrete for nansu coefficient 11, with wc ratio 0. Shear walls are vertical elements of the horizontal force resisting system. P,india is used as additives according to astm c 618 5.587 1224 1130 1251 199 923 1156 1499 484 1123 130 1378 1188 567 858 1120 22 982 1298 994 774 76 464 68 494 115 934 359 1536 673 107 884 1127 264 1427 242 470 1075 476 831 1297 1069