Here, the grading and packing of all solids in the concrete mix serves as a basis for the development of new concrete mixes. Shear walls are constructed to counter the effects of lateral load acting on a structure. This study presents an experimental investigation on self compacting and self. The ingredients for selfcompacting concrete are similar to conventional concrete. Introduction self compacting concrete scc represents one of the most significant advances in concrete technology for decades. Curing concrete sccm with fine aggregate replacement of a quarry dust 0. 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. 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.
It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. It consists of cement, coarse and fine aggregates, water, mineral and chemical admixtures. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. The volume of excess paste was determined by experiments.
Shear walls are vertical elements of the horizontal force resisting system. The paper presents an experimental procedure for the design of selfcompacting concrete mixes. Selfcompacting concrete procedure for mix design from. The concrete was cast along the entire lengths of the walls to avoid construction joints. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. Self compacting concrete, confinements, strength, ductility. Department of civil engineering university of minnesota. 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 european guidelines for self compacting concrete 1 introduction selfcompacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. Numerous trial mixes have to be adopted including mineral admixtures like fly ash. Hence, we studied the feasibility of using the treated domestic wastewater to produce self. Selfcompacting concrete scc is already common in the fabrication of precast concrete products.
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. This recommendation specifies the performance required of selfcompacting concrete, primarily the selfcompactability, and provide verification and inspection methods. 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. Mix design of self compacting concrete based on ultra high. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. 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. Scheme of compacted aggregate and concrete mixtures. 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. The selfcompacting concrete differs from conventional concrete in the following three characteristic features, namely, appropriate flowability, nonsegregation, and no blocking. 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. Self compacting concrete seminar report, ppt, pdf for. Selfcompacting concrete scc is a highly fluid concrete that does not require any vibration during the placement process 1, 2. 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.
There are, however, some differences between the hvfa self compacting concrete and the hvfa concrete designed by canmet. Therefore, it is essential to have a proper mix design. First, 6 beams were designed to be shear dominated, constructed by commonly. Self compacting concrete scc, also known asself consolidating concrete, is. Application of a reinforced selfcompacting concrete. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building. Okamura to achieve durability of structures with low. As per is4562000 6, cement is replaced by weight of material. Lbox has arrangement and the dimensions as shown in figure 2. The main characteristics of scc is the higher cement matrixaggregate ratio with respect to an ordinary concrete. 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. Publishers pdf, also known as version of record includes final page. It is able to flow and consolidate under its own weight, completely filling the formwork even in the presence of dense reinforcement. Compaction is achieved with external vibrating machines on the formworks which today, are primarily in the form of high.
It can be poured quickly, flowing and spreading effortlessly. Selfcompacting concrete scc v introduction to selfcompacting concrete. Self compacting concrete for high performance structures. Selfcompacting concrete is a recent development that shows potential for future applications. This paper presents the findings of an experimental study on the application of a reinforced selfcompacting concrete jacketing technique in damaged reinforced concrete beams. It meets the demands placed by the requirements of speed and quality in concrete construction. 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 european guidelines for selfcompacting concrete.
Self compacting concrete has left his early stage of laboratory studies and has now become an industrial product. Selfcompacting concrete suppliers scc the concrete. The range of benefits offered go beyond fundamental aspects of concrete quality and productivity. In this research, the design of mix mortar flow with ultrahigh compressive strength was made by the type i cement, i. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. First, the features of japanese and chinese methods are discussed, in which the packing of sand and gravel plays a major role. Okamura from the university of tokyo japan is mainly responsible for initiating the development of scc. An integral design concept for ecological selfcompacting concrete. 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.
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. Development of scc self compacting concrete scc developed by professor hajime. Workability, mechanical, and durability properties of self. 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. When shear walls are designed and constructed properly, and they will have. Magnel laboratory for concrete research 2 selfcompacting concrete. 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. Pdf selfcompacting concrete procedure for mix design. 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 civil engineering community. These guidelines and are available for free download. Compressive strength, concrete, fly ash, self compacting. One such latest generation concrete is self compacting concrete scc. P,india is used as additives according to astm c 618 5. This success is based on the high quality of these products.
Based on current research and available knowledge about scc presented in this paper, the following trends are emerging. 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. All types of cement conforming to en 197 are suitable. Placing and curing selfcompacting concrete in hot climates carlos f. 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. Pdf airentrainment problem in selfcompacting concrete.
A numerical model for selfcompacting concrete flow. By the early 1990s, japan has developed and used scc. Highly fluid, agilia is the ultimate selfcompacting concrete. Inadequate homogeneity of the cast concrete due to poor compaction or segregation may. Assessment of the fresh concrete properties of self compacting. The test results for acceptance characteristics of selfcompacting concrete such as slump flow. Magnel laboratory for concrete research 3 selfcompacting concrete. Optimum mix proportioning of high strength self compacting. The selfcompacting concrete differs from conventional concrete in the following three characteristic features, namely, i appropriate flowability, ii nonsegregation, and iii no blocking tendency. Testing and mix design method of self compacting concrete. Selfcompacting concrete scc for prestressed bridge girders.
This paper addresses experiments and theories on selfcompacting concrete. Selfcompacting concrete scc is an innovative concrete that does not require vibration for placing and compaction. Self compacting concrete incorporating highvolumes of. Self compacting concrete is highly engineered concrete with much higher fluidity without segregation and bleeding. Self compacting concrete incorporating highvolumes of class f. 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. Therefore, it is essential to have proper mix design.
This thesis addresses numerical simulations of selfcompacting concrete scc castings and suggests a novel modelling approach that treats reinforcement. Vibration technology or selfcompacting concrete scc. Selfcompacting concrete scc for prestressed bridge girders 7. College, gujarat technological university gujarat, india. Experimental investigation on properties of self compacting and. An increase in the flowability of concrete is known to increase the risk of segregation. Selection of the type of cement will depend on the overall requirements for the concrete, such as strength, durability etc. Self compacting concrete an overview sciencedirect topics.