The aim of this study is to find out an optimum mix proportioning of high strength selfcompacted concrete for different grades 30mpa 80mpa. The selfcompacting concrete differs from conventional concrete in the following three characteristic features, namely, i appropriate flowability, ii nonsegregation, and iii no blocking tendency. Vibration technology or selfcompacting concrete scc. This success is based on the high quality of these products. College, gujarat technological university gujarat, india. The paper presents an experimental procedure for the design of selfcompacting concrete mixes. The test results for acceptance characteristics of selfcompacting concrete such as slump flow. 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.
Test results of 12 specimens subjected to monotonic loading up to failure or under repeated loading steps prior to total failure are included. Selfcompacting concrete scc is an innovative concrete that does not requires vibration for placing and compaction. For delivery of highquality selfcompacting concrete, contact the concrete network the largest network of concrete suppliers operating throughout the uk. Self compacting concrete has left his early stage of laboratory studies and has now become an industrial product.
Self compacting concrete an overview sciencedirect topics. Selfcompacting concrete scc, or selfconsolidating concrete in usa, is a segregationfree concrete although it is so fluid that it can completely fill any area of the formwork in the absence of any compaction effort. Magnel laboratory for concrete research 3 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. Mix design of self compacting concrete based on ultra high. Department of civil engineering university of minnesota. This paper addresses experiments and theories on selfcompacting concrete. The european guidelines for self compacting concrete represent a stateoftheart document addressed to those specifiers, designers, purchasers, producers and users who wish to enhance their expertise and use of scc. The selfcompacting concrete differs from conventional concrete in the following three characteristic features, namely, appropriate flowability, nonsegregation, and no blocking. Curing concrete sccm with fine aggregate replacement of a quarry dust 0. Therefore, it is essential to have a proper mix design. Shear walls are vertical elements of the horizontal force resisting system. An increase in the flowability of concrete is known to increase the risk of segregation.
Lbox has arrangement and the dimensions as shown in figure 2. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. Optimum mix proportioning of high strength self compacting. There are, however, some differences between the hvfa self compacting concrete and the hvfa concrete designed by canmet. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. 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 scc is already common in the fabrication of precast concrete products. Inadequate homogeneity of the cast concrete due to poor compaction or segregation may. It is able to flow and consolidate under its own weight, completely filling the formwork even in the presence of dense reinforcement. Self compacting concrete concrete that is able to flow under its own weight and completely fill the form work even in the presence of congestion.
Properties of selfcompacting concrete with different types of additives 175 lbox test is used to assess the passing ability of scc to flow through tight openings including spaces between reinforcing bars and other obstructions without segregation or blocking. Self compacting concrete is a type of concrete that does not require external or internal compaction because it becomes leveled and compacted under its own weight. Selfcompacting concrete suppliers scc the concrete. Selfcompacting concrete procedure for mix design article pdf available in leonardo electronic journal of practices and technologies 712 june 2008 with 35,725 reads how we measure reads. In this research, the design of mix mortar flow with ultrahigh compressive strength was made by the type i cement, i.
Compaction is achieved with external vibrating machines on the formworks which today, are primarily in the form of high. Selfcompacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. It consists of cement, coarse and fine aggregates, water, mineral and chemical admixtures. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. 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. Pdf selfcompacting concrete procedure for mix design. Selfcompacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. Placing and curing selfcompacting concrete in hot climates carlos f. The present project investigates the making of selfcompacting concrete more affordable for the construction market by replacing high volumes of portland cement by fly ash. The main characteristics of scc is the higher cement matrixaggregate ratio with respect to an ordinary concrete. As per is4562000 6, cement is replaced by weight of material. Numerous trial mixes have to be adopted including mineral admixtures like fly ash. This thesis addresses numerical simulations of selfcompacting concrete scc castings and suggests a novel modelling approach that treats reinforcement.
Development of scc self compacting concrete scc developed by professor hajime. These guidelines and are available for free download. Selfcompacting concrete scc v introduction to selfcompacting concrete. First, the features of japanese and chinese methods are discussed, in which the packing of sand and gravel plays a major role. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity.
Okamura from the university of tokyo japan is mainly responsible for initiating the development of scc. 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. Okamura to achieve durability of structures with low. Here, the grading and packing of all solids in the concrete mix serves as a basis for the development of new concrete mixes. 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 scc, also known asself consolidating concrete, is. Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. Introduction self compacting concrete scc represents one of the most significant advances in concrete technology for decades. Shear walls are constructed to counter the effects of lateral load acting on a structure. Pdf airentrainment problem in selfcompacting concrete. The volume of excess paste was determined by experiments.
This recommendation specifies the performance required of selfcompacting concrete, primarily the selfcompactability, and provide verification and inspection methods. Scheme of compacted aggregate and concrete mixtures. Therefore, it is essential to have proper mix design. Self compacting concrete, confinements, strength, ductility. This paper presents the findings of an experimental study on the application of a reinforced selfcompacting concrete jacketing technique in damaged reinforced concrete beams.
This standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less. Selfcompacting concrete technische universiteit eindhoven. The ingredients for selfcompacting concrete are similar to conventional concrete. Introduction selfcompacting 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. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. One such latest generation concrete is self compacting concrete scc. Selfcompacting concrete civil engineering community. Application of a reinforced selfcompacting concrete. An integral design concept for ecological selfcompacting concrete. A numerical model for selfcompacting concrete flow. First, 6 beams were designed to be shear dominated, constructed by commonly. Magnel laboratory for concrete research 2 selfcompacting concrete. Publishers pdf, also known as version of record includes final page.
The concrete was cast along the entire lengths of the walls to avoid construction joints. This study presents an experimental investigation on self compacting and self. Self compacting concrete for high performance structures. It meets the demands placed by the requirements of speed and quality in concrete construction. Self compacting concrete is highly engineered concrete with much higher fluidity without segregation and bleeding. Compressive strength, concrete, fly ash, self compacting. It can be poured quickly, flowing and spreading effortlessly. When shear walls are designed and constructed properly, and they will have. Selfcompacting concrete is a recent development that shows potential for future applications. Self compacting concrete scc the latest emerging technology in construction published on jun 12, 2017 scc may not be a newly invented technology in the world. All types of cement conforming to en 197 are suitable. 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. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing.
Workability, mechanical, and durability properties of self. 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. Self compacting concrete seminar report, ppt, pdf for. By the early 1990s, japan has developed and used scc. Assessment of the fresh concrete properties of self compacting. P,india is used as additives according to astm c 618 5. Testing and mix design method of self compacting concrete. Self compacting concrete incorporating highvolumes of. Hence, we studied the feasibility of using the treated domestic wastewater to produce self. Selfcompacting concrete procedure for mix design from. 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.
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