Influence of bamboo fiber and limestone powder on the. Development of mechanical properties of self compacting. 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. Since then, various investigations have been carried out, and the concrete has been used in practical structures in japan, mainly by large construction companies. 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. Liao 4 school of architecture and built environment,e university of newcastle, callaghan, nsw, australia. 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. Also, compactibility is affected by the characteristics of materials and the mix proportions. It is concluded that rha provides a positive effect on the mechanical properties at age after 60 days. This research examined the effect of superplasticizer on workability and properties of self compacting concrete scc.
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 recent years, manufactured sand produced by crushing of rock is being identified as a suitable. The main characteristics of scc are the properties in the fresh state. 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.
Efnarc main activities at european level and at cen technical committees are in flooring, the. 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. Tests on concrete have also been a carried out to confirm the most important effects. Afterwards, available durability results are summarzied in general.
Self compacting concrete seminar report, ppt, pdf for. Self compacting concrete was first developed 1988 in order to achieve durable concrete structures. 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. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. There are several methods for testing its properties in the fresh state. By the early 1990s, japan has developed and used scc. Study on strength properties of self compacting concrete. Fresh and hardened properties of selfcompacting concrete. Self compacting concrete scc ensures flow in the interior of construction sections. In this study, the effects of fibers on fresh concrete properties and mechanical properties of self. 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.
Selfcompacting concrete scc it uses superplasticisers and stabilisers to significantly increase the ease and rate of flow. P,india is used as additives according to astm c 618 5. 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. 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. 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%. Keywords self compacting concrete, blended cement, property analysis, thermal how to cite this paper. This site is like a library, use search box in the widget to get ebook. 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.
Workability, mechanical, and durability properties of self. Research article properties of selfcompacting concrete. Admixtures a polycarboxylic ether based superplasticizer complying with astm c494 type f, was used. Hardened properties of normal concrete nc and selfcompacting concrete scc are compared. All the mixes contain cement of 574 kgm 3 but with different total binder content. Self compacting concrete scc, flows into place and around obstructions under its own weight, is extensively applied in many construction projects. Evaluation of fresh and hardened properties of self. High deformability of mortar and concrete self compacting concrete. Mechanical properties of self compacting concrete download. Three types of superplasticizers conplast sp 561, conplast sp 430 and conplast sp 264 at different percentages 0, 10. Structural performance properties of hardened self compacting concrete 1. Pdf properties of self compacting concrete using ggbs and.
This paper is first giving an overview of hydration, microstructure and transport mechanisms of self compacting concrete. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta the properties of fly ash conform to is. 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. Modified nansu method has been used for design mix as the study was carried out for medium strength of concrete. The main ingredients used in design of self compacting concrete are. 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. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. The increase in the fine aggregate content increased the cohesiveness of the self compacting concrete. Download the latest pdf and ppt on slideshare for civil projects. Lbox has arrangement and the dimensions as shown in figure 2. 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.
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. Troli enco, engineering concrete, ponzano veneto tv, italy abstract. The properties of sccs render them good materials for use in structures with complicated and narrow sections. 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. Properties of high strength self compacting concrete m70. By using superplasticizers and mineral admixtures such as slag and fly ash, three sfrc of different fiber contents 0. 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.
Properties and thermal stress analysis of blended cement. Self compacting concrete materials, properties and tests. Self compacting concrete an overview sciencedirect topics. Hence to overcome these defects the self compacting concrete is used. 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. This standard covers the test method for slump flow of self compacting concrete with a maximum coarse aggregate size of 40 mm or less. 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. Research article properties of self compacting concrete with recycled coarse aggregate w. Pdf properties of selfcompacting concrete with different.
Due to its properties and composition, the selfcompacting concrete is described here as being one of the future. Sivasankari2, student, structural engineering, miet engineering college, trichy. Base of the result self compacting concrete specimens have higher value than normal concrete specimens in all test except modulus of elasticity. Evaluation of properties of selfcompacting concrete. Self compacting concrete seminar report, ppt, pdf for civil.
Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. 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. The first usable version of self compacting concrete was completed in 1988 and was named high performance concrete, and later proposed. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. 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. Investigations for establishing a rational mix design method and self compactability testing methods have been carried out from the. Santhoshraja2 1post graduate student, department of civil engineering, prist university, trichythanjavur highway,vallam, thanjavur, india. 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. This led to the development of self compacting concrete, primarily through the work by okamura 1. This led to the development of selfcompacting concrete, primarily through the work by okamura 1. Paper open access effect of superplasticizer on workability. Also, the influence of glass fibres on fresh and hardened properties of scc is investigated. Selfcompacting concrete produces resistance to segregation by using mineral fillers or fines and using special admixtures.
The paper presents the characteristics of the selfcompacting concretes, their advantages and disadvantages when they are used in buildings. 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. 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. 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. Pdf hydration, microstructure, transport properties and. Pdf selfcompacting concrete procedure for mix design. Selfcompacting concrete development must ensure a good balance between deformability and stability. 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. Balavignesh1, assistant professor, miet engineering college, gundur, trichy. The hardened concrete is dense, homogeneous and has the same engineering properties and durability as traditional vibrated concrete. In this paper, research was conducted to investigate the performance of copper slag in self compacting concrete scc pertaining to fresh and hardened properties.
The workability tests performed in this research were as per efnarc. Selfcompacting concrete by s and corneliu bobliana iure abstract. It can be used in precast applications or for concrete placed on site. In all scc mixes compressive strengths of standard cube specimens were comparable to those of. 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. This paper deals with the mix design and mechanical properties of self. This work presents properties of selfcompacting concrete, mixed with different types additives. Ordinary portland cement either 43 or 53 grade cement can be used. Department of civil engineering, faculty of engineering, kharazmi university, tehran, iran. The production of self compacting concrete scc with low density has become a major challenge for civil engineering, especially regarding the. Influence of mineral admixtures on self compacting concrete. Effect of fibers types on fresh properties and flexural. Based upon the experimental results, for water cement ratio 0. 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.
A flowing concrete and two self compacting concretes were manufactured, at given portland cement content 400 kgm3 and watercement ratio 0. Written by an international group of contributors who are. 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. Mechanical properties and postcracking behavior 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. 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. Fiber reinforced concrete is widely used due to its high ductility, energy absorbing capacity, and tensile strength. Properties of mortar for selfcompacting concrete ucl.
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. Also specimens with 20 replacement of cement by rha have the best performance. Furthermore, the influence of bamboo fiber and limestone powder on the bfrscc will be assessed. 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 applications and advantages. Abstract the objective of this study is to present the effect of mineral admixtures in self compacting high strength concrete. As per is4562000 6, cement is replaced by weight of material.
Effect of rice husk ash on fresh and hardened properties. Study on strength properties of self compacting concrete by supplementary replacement of cement by ceramic syed rizwan. Extensive testing of physical and mechanical properties of scc was carried out during the past decade. 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. Effect of metakaolin and fly ash on properties of self. Compressive strength of self compacting concrete in all scc. The mix design is focused on the ability to flow under its own weight without. Click download or read online button to get mechanical properties of self compacting concrete book now. Mechanism of achieving self compaction 5 reduction of water. Durability characteristics of selfcompacting concrete. In this way some more general view on durability of self compacting concrete is obtained. Testing selfcompacting concrete evaluate the deformability of scc in the absence of obstacles. Many tests were conducted to investigate the effect of adding wpf on the fresh. Study on strength properties of self compacting concrete by.
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