New report examines the latest trends global self compacting concrete market forecast to 2021 this report studies sales consumption of self compacting concrete in global market, especially in united states, china, europe and japan, focuses on top players in these regions countries, with sales, price, revenue and market share for each player. Ppt self compacting concrete powerpoint presentation free. 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. The utilisation of selfcompacting concrete scc is growing rapidly. Download the latest pdf and ppt on slideshare for civil projects. What is self consolidated concrete self compacting. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. High deformability of mortar and concrete self compacting concrete. Concrete producers must retrain their eyes for this very fluid mixture as it turns corners and fills forms. For example, the mix for mass concrete is designed for pumping and depositing at a fairly high rate. 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. 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. 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. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies.
Pdf selfcompacting concrete procedure for mix design. Tech student,civil engineering department, brcm college rohtak, haryana, india 2 assistant professor, civil engineering department, bit meerut, uttar pradesh, india abstract self compacting concrete scc was first. Mechanism of achieving self compaction 5 reduction of water. Self compacting concrete mix design for m30 kshama shukla1, akansha tiwari2 1 m. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. P,india is used as additives according to astm c 618 5. Placing and curing selfcompacting concrete in hot climates carlos f. Self compacting concrete ppt construction aggregate concrete. Properly designed scc can save time and labor without sacrificing performance. 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. A concrete mix can only be classified as self compacting concrete if the requirements for all the following three workability properties are fulfilled. High performance concrete hsc might be regarded as concrete with a strength in excess of 60mpa and such concrete can be produced as relatively normal concrete with a higher cement con. Jul 01, 2018 this video animation, animated video explains the concept of self consolidated concrete self compacting concrete. Self compacting concrete is considered some sort of concrete.
A simple tool has been designed for self compacting concrete scc mix design with 29% of coarse aggregate, replacement of cement with metakaolin and class f flyash, combinations of both and controlled scc mix with 0. Traditionally, concrete with the fluidity of scc has had a very high watertocement ratio, which would lower compressive strengths and compromise. Ordinary portland cement either 43 or 53 grade cement can be used. In the mix design of scc, the relative proportions of key components are generally. Therefore, it is essential to have a proper mix design. Scc looks very different from conventional concrete while mixing. Mix design for self compacting concrete is given as below.
In this project, the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away. Self compacting concrete has been used in bridges and even on precast sections. New report examines the latest trends global self compacting concrete market forecast to 2021 this report studies sales consumption of self compacting concrete in global market, especially in united states, china, europe and japan, focuses on top players in these regions countries, with sales, price, revenue and market share for each player in these regions, covering cemex s. One of the most remarkable projects built using self compacting concrete is the akashikaikyo suspension bridge. With self compacting concrete, however, the water powder ratio has to account self compact ability because self compact. Civil engineering animated videos, civil engineering videos social media. Tech student, civil engineering, roorkee institute of technology, uttrakhand,indiaabstract self compacting concrete scc is a high performance concrete that can flow under its own weight to completely fill the form work and self. A scc mix powder content of 550 kgm3 is taken by different as steps adopted for normal concrete mix and it is fixing. By the early 1990s, japan has developed and used scc. The size of the aggregates used for scc design is limited to 20mm. A simple mix design method for selfcompacting concrete. The mix designed as per the requirements are tested before using it in construction.
A practical mix design method for selfcompacting concrete. The present investigation is an attempt to evaluate the efficiency of metakaolin in self compacting concrete at various replacement percentages, through the efficiency concept proposed earlier for the design of high strength metakaolin concretes and suggest a methodology for incorporating metakaolin in self compacting concrete. Scc was used in the construction of the anchorages of the akashikaikyo suspension bridge. Selfcompacting concrete applications and advantages. Concrete mix design for high strength selfcompacting. Abstract self compacting concrete scc was first practiced in japan which was a very special type of concrete or high performance concrete that could flow. The utilisation of self compacting concrete scc is growing rapidly. Self compacting concrete seminar report, ppt, pdf for. This test has below yield stress, and grouts and is well described in nzs 3101, part 3. Packing density theory is a method of concrete mix design which has been successfully used in l wscc kaffetzakis and. Self compacting concrete basic principles of scc and properties of hardened concrete requirements and mode of action of scc mix design and mixing of concrete transport,casting,surface finish and working environment test methods abstract main advantages of scc over conventional concrete reduced labour requirements quicker concrete.
Study of mix design of self compacting concrete vipul kumar1 1 m. Mix design of lightweight selfcompacting concrete behnam vakhshouri, shami nejadi centre for built infrastructure research cbir, university. A simple tool for self compacting concrete mix design. This recommendation specifies the performance required of selfcompacting concrete, primarily the self compactability, and provide verification and inspection methods. National institute of technology, uttarakhand, india. The mix design for traditional concrete was carried out as per is 10262. With self compacting concrete, however, the water powder ratio has to account self compact ability because self compact ability is very sensitive to this ratio. Self compacting concrete an overview sciencedirect topics. Comparison of statistical mix design proportions of high strength self compacting concrete zlem akalin, plustechno bahar sennaro lu, marmara university a free powerpoint ppt presentation displayed as a flash slide show on id. Introduction development materials required properties of scc mix design tests uses. And also the definition and motive for development of scc have been discussed. Self compacting concrete with recycled coarse aggregates.
It is the ability of scc to flow into all spaces within the formwork under its own weight. Feb, 2014 self compacting concrete testing of all fresh properties duration. Testing and mix design method of self compacting concrete. In the mix proportioning of conventional concrete, the water cement ratio is fixed at from the view point of obtaining the required strength. Comparison of scc over nc ingredients normal concrete. The basic properties to be achieved by an scc mix is flowability, passing ability, strength, and segregation resistance. A scc mix powder content of 550 kgm3 is taken by different as steps adopted for normal concrete mix and it is fixing 0.
Mix design of lightweight self compacting concrete. Selfcompacting concrete procedure for mix design from. A simple tool has been designed for self compacting concrete scc mix design with 29% of coarse aggregate, replacement of cement with metakaolin and. 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. Self compacting concrete scc mix design must involve key practices to achieve the requirements of quality and durable mix. The concrete community of various european countries intensely researches its application and implements experiences. As there is no indian code available for self compacting concrete mix design, it is designed based on efnarc specifications. Selfcompacted concrete mix design and its comparison.
Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. 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. Self compacting concrete as the name says is nothing special but different from normal concrete, it is just employment of admixtures and different amount of composite materials that makes scc acts as different as compared to normal one. Investigations for establishing a rational mix design method and self compactability testing methods have been carried out from the. Self compacting concrete ppt free download as powerpoint presentation. Self consolidating concrete, also known as self compacting concrete scc, is a highly flowable, nonsegregating concrete that spreads into place, fills formwork, and encapsulates even the most congested reinforcement, all without any mechanical vibration. Such concrete should have a relatively low yield value to ensure high flow. The method for achieving self compacting ability involves. This specification and guideline utilises efnarcs broad practical experience with scc to provide a framework for design and use of high quality scc. In general, scc is concrete made with conventional concrete materials and, in some cases, with a viscositymodifying admixture vma.
Jul 09, 2018 self compacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Self compacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. Self compacting concrete free download as powerpoint presentation. Plasticizers and vma high segregation resistance of mortar and concrete. However, even nowadays, there is still a lack of knowledge about scc, especially regarding the few practical mix design methods. This recommendation specifies the performance required of self compacting concrete, primarily the self compactability, and provide verification and inspection methods. Scc has also been described as self compacting concrete, self.
Self consolidating concrete mix self consolidating concrete scc is a highly fluid mixture designed to flow and consolidate under its own weight. The main ingredients used in design of self compacting concrete are. An increase in the flowability of concrete is known to increase the risk of segregation. 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.
In this paper, investigation for establishing a rational mix design method with self compatibility been carried out from the viewpoint of making self compacting concrete. Keywordsselfcompactingconcrete,mixdesign,superplasticizer. Selfcompacted concrete mix design and its comparison with. A simple mix design method for self compacting concrete. Self compacting concrete was first developed 1988 in order to achieve durable concrete structures. The mixture is very cohesive and is capable of filling all types of spaces without segregation or bleeding. Traditionally, concrete with the fluidity of scc has had a very high watertocement ratio, which would lower compressive strengths and compromise durability. It uses super plasticisers and stabilizers to significantly increase the ease and rate of flow. Self compacting concrete is one of the subjects of concrete technology and the various investigations have been carried out and hence the concrete has been used in practical structures. 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 concrete in the casting operations. Module 9 lecture 2 mix design of concrete is method duration.
Jun 17, 2019 long haul distances can reduce flowability of self compacting concrete. Sep 16, 20 high performance concrete hsc might be regarded as concrete with a strength in excess of 60mpa and such concrete can be produced as relatively normal concrete with a higher cement con. Self consolidating high performance concrete scc self. Pdf mix design of lightweight selfcompacting concrete. Mix design requirements for self compacting concretescc.
Self compacting concrete materials, properties and tests. Mar 16, 2016 o self compacting concrete is an innovative concrete that does not require vibration for placing and compaction. Selfcompacting concrete is characterized by the adoption of a concreting method that does not require vibration during placing. Selfcompacting concrete procedure for mix design article pdf available in leonardo electronic journal of practices and technologies 712. Delays on job site could affect the concrete mix design performance. A free powerpoint ppt presentation displayed as a flash slide show on id. Self compacting concrete testing of all fresh properties. Self compacting concrete scc is a flowing concrete that does not require vibration and, indeed, should not be vibrated. Ppt self compacting concrete powerpoint presentation. A rational method for the design of selfcompacting concrete mixes based on target plastic viscosity and compressive strength. In this paper, a brief introduction to self compacting concrete scc is given. Self compacting concrete testing of all fresh properties duration. Job site water addition to self compacting concrete may not always yield the expected increase in flowability and could cause stability problems. 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.
Self compacting concrete powerpoint ppt presentations powershow. In 1988, self compacting concrete scc a highfl uidity concrete that maintains its stability was developed in japan. 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. The scc was mixed at a batch plant at the job site and pumped through a piping system to the location of the anchorages 200 m away. Methods of testing self compacting concrete workability.
789 227 1240 1314 713 948 305 942 920 1365 356 935 1123 499 1384 101 30 1356 1079 1446 1151 199 775 1372 61 476 971 523 1272 1349 394 1014 1299 152 745 504 1178 579