Evaluation of fresh and hardened properties of self. Extensive testing of physical and mechanical properties of scc was carried out during the past decade. This research examined the effect of superplasticizer on workability and properties of self compacting concrete scc. Research article properties of selfcompacting concrete. 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.
The mix design is focused on the ability to flow under its own weight without. 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 the possibility of enhancing some properties of self. Testing selfcompacting concrete evaluate the deformability of scc in the absence of obstacles. Mechanism of achieving self compaction 5 reduction of water. Admixtures a polycarboxylic ether based superplasticizer complying with astm c494 type f, was used.
Study on strength properties of self compacting concrete. Afterwards, available durability results are summarzied in general. All the mixes contain cement of 574 kgm 3 but with different total binder content. Effect of metakaolin and fly ash on properties of self. Click download or read online button to get mechanical properties of self compacting concrete book now. Development of mechanical properties of self compacting. It can be used in precast applications or for concrete placed on site. The increase in the fine aggregate content increased the cohesiveness of the self compacting concrete. It was a response to the lack of qualified skilled workers at the construction sites and a solution for the accomplishment of durable concrete structures. Hardened properties of normal concrete nc and selfcompacting concrete scc are compared.
This site is like a library, use search box in the widget to get ebook. Based on this fact scc offers improved fresh concrete but also hardened material properties and therefore many advantages regarding the productivity and the design potential. In this study, the effects of fibers on fresh concrete properties and mechanical properties of self. Paper open access effect of superplasticizer on workability.
The comparison of the experimental results with those derived from several codes and recommendations allows evaluating if the hardened behaviour of self compacting concrete can be appropriately predicted by the. Influence of bamboo fiber and limestone powder on the. Pdf properties of self compacting concrete using ggbs and. Influence of mineral admixtures on self compacting concrete. Properties of mortar for selfcompacting concrete ucl. Many tests were conducted to investigate the effect of adding wpf on the fresh. This work presents properties of selfcompacting concrete, mixed with different types additives. The hardened concrete is dense, homogeneous and has the same engineering properties and durability as traditional vibrated concrete. Efnarc main activities at european level and at cen technical committees are in flooring, the. Durability characteristics of selfcompacting concrete. 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 scc was developed in japan during the later part of the 1980s to be mainly used for highly congested reinforced structures in seismic regions. Abstract the objective of this study is to present the effect of mineral admixtures in self compacting high strength concrete.
The main characteristics of scc are the properties in the fresh state. Self compacting concrete seminar report, ppt, pdf for. Early age properties of selfcompacting concrete effects of fine aggregate and limestone filler oskar esping department of civil and environmental engineering building technology chalmers university of technology abstract self compacting concrete scc is. 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. Department of civil engineering, faculty of engineering, kharazmi university, tehran, iran. Effect of fibers types on fresh properties and flexural.
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. Selfcompacting concrete scc it uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. 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%. 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. Ordinary portland cement either 43 or 53 grade cement can be used. Self compacting concrete was first developed 1988 in order to achieve durable concrete structures. Structural performance properties of hardened self compacting concrete 1. This led to the development of selfcompacting concrete, primarily through the work by okamura 1. Workability, mechanical, and durability properties of self. Material added during the mixing process of concrete in small quantities related to the mass of cement to modify the properties of fresh or hardened concrete.
Study on strength properties of self compacting concrete by. The first usable version of self compacting concrete was completed in 1988 and was named high performance concrete, and later proposed. A flowing concrete and two self compacting concretes were manufactured, at given portland cement content 400 kgm3 and watercement ratio 0. Materials, properties and applications presents the latest research on various aspects of self compacting concrete, including test methods, rheology, strength and durability properties, scc properties at elevated temperature, sc manufacturing with the use of scms, recycled aggregates and industrial byproducts. Compressive strength of self compacting concrete in all scc.
This paper presents the progress of the research on different harden properties of self compacting concrete using the ordinary portland cement and lowcalcium fly ash. Self compacting concrete an overview sciencedirect topics. There are several methods for testing its properties in the fresh state. Study on strength properties of self compacting concrete by supplementary replacement of cement by ceramic syed rizwan. This led to the development of self compacting concrete, primarily through the work by okamura 1. In this study, natural sand was substituted with 060% copper slag giving an increment of 10%, cement content was replaced with 20% fly ash and rest all other parameters including. Based upon the experimental results, for water cement ratio 0. This paper deals with the mix design and mechanical properties of self. Self compacting concrete scc is the new category of high performance concrete hpc characterized by its ability to spread and self consolidate in the form work exhibiting any significant separation of constituents. Balavignesh1, assistant professor, miet engineering college, gundur, trichy. Written by an international group of contributors who are. This paper is first giving an overview of hydration, microstructure and transport mechanisms of self compacting concrete.
Also, the influence of glass fibres on fresh and hardened properties of scc is investigated. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. The workability tests performed in this research were as per efnarc. Self compacting concrete seminar report, ppt, pdf for civil. Pdf properties of selfcompacting concrete with different. In this paper, research was conducted to investigate the performance of copper slag in self compacting concrete scc pertaining to fresh and hardened properties. Janaki raman and aiswarya s, mechanical and durability properties of self compacting concrete using rice husk ash and marble powder, international journal of civil engineering and technology, 9 7, 2018. Lbox has arrangement and the dimensions as shown in figure 2. The properties of sccs render them good materials for use in structures with complicated and narrow sections. For this design of m 30 grade self compacting concrete is prepared with nca and comparison of its strength is compared with substitution of blast furnace slag as aggregate.
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. The seminar report on selfcompacting concrete which explains the mix design, advantages and disadvantages, applications, properties,process of making selfconsolidating concrete, theoretical and experimental studies with test results. Self compacting concrete scc, flows into place and around obstructions under its own weight, is extensively applied in many construction projects. Properties of high strength self compacting concrete m70. Download the latest pdf and ppt on slideshare for civil projects. A committee was formed to study the properties of self compacting concrete, including a fundamental investigation on workability of concrete, which was carried out by ozawa et al 2. Furthermore, the influence of bamboo fiber and limestone powder on the bfrscc will be assessed. Selfconsolidating concrete is required to flow and fill special forms under its own weight, it shall be flowable enough to pass through highly reinforced areas, and must be able to avoid aggregate segregation. 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. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. 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.
P,india is used as additives according to astm c 618 5. Base of the result self compacting concrete specimens have higher value than normal concrete specimens in all test except modulus of elasticity. The hardened properties like compressive strength, split tensile strength, flexural strength and are found in experimental work and are compared with m25 grade of concrete. Selfcompacting concrete by s and corneliu bobliana iure abstract. Concrete that requires little vibration or compaction has been used in europe since the early 1970s but selfcompacting concrete was not developed until the late 1980s in japan. A committee was formed to study the properties of selfcompacting concrete, including a fundamental investigation on workability of concrete, which was carried out by ozawa et al 2. Tests on concrete have also been a carried out to confirm the most important effects.
In this way some more general view on durability of self compacting concrete is obtained. Research article properties of self compacting concrete with recycled coarse aggregate w. Three types of superplasticizers conplast sp 561, conplast sp 430 and conplast sp 264 at different percentages 0, 10. In all scc mixes compressive strengths of standard cube specimens were comparable to those of. Fresh and hardened properties of selfcompacting concrete. Also specimens with 20 replacement of cement by rha have the best performance. Fiber reinforced concrete is widely used due to its high ductility, energy absorbing capacity, and tensile strength. This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. Santhoshraja2 1post graduate student, department of civil engineering, prist university, trichythanjavur highway,vallam, thanjavur, india. Also, compactibility is affected by the characteristics of materials and the mix proportions. Evaluation of properties of selfcompacting concrete. Properties and thermal stress analysis of blended cement.
Selfcompacting concrete applications and advantages. An attempt was carried out to develop some properties of self compacted concrete scc by adding waste plastic fibers wpf resulting from cutting beverage bottles. Keywords self compacting concrete, blended cement, property analysis, thermal how to cite this paper. Sivasankari2, student, structural engineering, miet engineering college, trichy. High deformability of mortar and concrete self compacting concrete. The main ingredients used in design of self compacting concrete are. In recent years, manufactured sand produced by crushing of rock is being identified as a suitable. By using superplasticizers and mineral admixtures such as slag and fly ash, three sfrc of different fiber contents 0.
The effect of types and amount of powder materials, admixtures, sand and water content on the properties of self compacting concrete scc have been investigated by tests on the mortar fraction. Selfcompacting concrete produces resistance to segregation by using mineral fillers or fines and using special admixtures. By the early 1990s, japan has developed and used scc. Troli enco, engineering concrete, ponzano veneto tv, italy abstract. It is concluded that rha provides a positive effect on the mechanical properties at age after 60 days. 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. Investigations for establishing a rational mix design method and self compactability testing methods have been carried out from the. Selfcompacting concrete development must ensure a good balance between deformability and stability. Properties of self compacting 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. The production of self compacting concrete scc with low density has become a major challenge for civil engineering, especially regarding the dosage and maintenance of mechanical strength. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building.
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. As per is4562000 6, cement is replaced by weight of material. The paper presents the characteristics of the selfcompacting concretes, their advantages and disadvantages when they are used in buildings. Hence to overcome these defects the self compacting concrete is used. Self compacting concrete scc ensures flow in the interior of construction sections. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta the properties of fly ash conform to is. Pdf hydration, microstructure, transport properties and. Self compacting concrete scc mix design tests and properties of self compacting concrete the requirements of the self compacting concrete are achieved by the properties in its fresh state. Self consolidating concrete is required to flow and fill special forms under its own weight, it shall be flowable enough to pass through highly reinforced areas, and must be able to avoid aggregate segregation. The production of self compacting concrete scc with low density has become a major challenge for civil engineering, especially regarding the. Mechanical properties and postcracking behavior of self. Due to its properties and composition, the selfcompacting concrete is described here as being one of the future. Mechanical properties of self compacting concrete download.
Modified nansu method has been used for design mix as the study was carried out for medium strength of 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. Liao 4 school of architecture and built environment,e university of newcastle, callaghan, nsw, australia. Self compacting concrete scc is a type of concrete, which flows under the sole influence of gravity up to leveling, air out and consolidates itself without any external compaction energy.
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