Selfcuring concrete is based on the introduction of a chemical admixture that is able to reduce water evaporation by a retaining function. Project report study on self compacting concrete using. Hence to overcome these defects the self compacting concrete is used. There are two major methods available for internal curing of concrete. Selfcuring or internal curing is a technique that can be used to provide additional moisture in concrete for more effective hydration of cement and reduced selfdesiccation. Self curing concrete is the best answer for desert area where the availability of water is very less or not available. In this study strength parameters of self compacting concrete, self curing concrete, self compacted self. Please make your selection from our printed color card, hard samples or job site test. Self compacting concrete seminar report, ppt, pdf for civil. Currently, there are two major methods available for internal curing of concrete. Chemicals to achieve selfcuring some specific watersoluble chemicals added during the mixing can reduce water evaporation from and within the set concrete, making it selfcuring. 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. However working on the parameters which affect the basic properties of selfcompacting concrete such as plastic viscosity, deformability, flowability and resistance to segregation, selfcompacting concrete may be proportioned. Polyethylene glycol peg is one of the chemical agents which minimizes the loss of water and also attracts moisture.
The investigational study is approved out to examine the use of water retains by. Selfhealing of concrete a new technology for a more. Mohanraj, rajendran m studied on selfcuring concrete incorporated with polyethylene glycol. The simplest way of self healing is to ensure that extra dry cement in the concrete exposed on the crack surfaces can react with water and carbon dioxide to heal and form a thin white scar of calcium carbonate. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. Selfcuring concrete sc is a concrete type that can be cured without using any external curing regimes. The importance of selfcompacting concrete is that maintains all concretes durability and characteristics. Basil gnanappa3 1sun college of engineering and technology, sathyabama university, chennai, india 2sun polytechnic college, sathyabama university, chennai, india. Experimental study on strength characteristics of self curing. In this study, two materials were selected as selfcuring agents with different amounts, and the addition of silica fume was studied.
It can perform by several methods such as using lightweight aggregate or chemical agents. Currently, no alternatives for concrete exist which can be supplied at a sufficient scale globally. There fore each selfcompacting concrete has to be designed for the particular structure to be constructed. 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. Concrete is the worlds most durable, reliable and economical construction material with an annual consumption in volume by society only surpassed by water. Selfcuring concrete is the best answer for desert area where the availability of water is very less or not available. Curing is the maintenance of a satisfactory moisture content and temperature in concrete for a period of time immediately following placing and finishing so that the desired properties may develop fig. The concrete was cast along the entire lengths of the walls to avoid construction joints. Selfcuring concrete scc can cure without using any external curing methods. Mixture adjustments at the jobsite for air entrainment, and the addition of other. Curing concrete, chapter 12 the university of memphis.
We hereby declare that the 8th semester project report for the project entitled study on selfcompacting concrete using industrial waste materials submitted in partial fulfillment for the degree of bachelor of engineering in civil engineering to gujarat technological. Investigations on selfcompacted selfcuring concrete using. Civil engineering room free download project of php,java. This page contains fiberreinforced concrete frc seminar and ppt with pdf report. The first major trial of selfhealing concrete in the uk, led by a team of researchers from cardiff university, is being undertaken at a site in the south wales valleys. Curing is the maintenance of a satisfactory moisture content and temperature in concrete for a period of time immediately following placing and finishing so that the desired properties may develop. Higher cement content andor lower watercement ratio leads to more effective results of selfcuring agents in concrete. Oct 05, 2012 curing of concrete curing may be defined as the operation of maintaining humidity and temperature of freshly placed concrete during some definite period following placing,casting or finishing to assure satisfactory hydration of cement and proper hardening of the concrete if the curing is neglacted in early period of hydration, the quality of. Curing is the maintaining of an adequate moisture content and temperature in concrete at early ages so that it can develop properties the mixture was designed to achieve. Curing of concrete should begin soon after initial setting time of concrete or formworkshuttering is removed and must continue for a reasonable period of time as per the specified standards, for the concrete to achieve its desired strength and durability. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. Built expressions bangalore self curing concrete a. Self curing or internal curing is a technique that can be used to provide additional moisture in concrete for more effective hydration of cement and reduced self desiccation. Curing has a strong influence on the properties of hardened concrete.
A curing practice involves keeping the concrete damp or moist until the hydration of concrete is complete and strength is attained. This paper highlights the effect of curing agent polyethylene glycol peg400 in the performance of concrete. Calcium carbonate is a strong compound found naturally in seashells. Batching, mixing, transporting, and handling concrete.
Curing is defined as maintenance of a satisfactory moisture content and temperature in the concrete for a period of time immediately following placing and finishing so that the desired properties may develop. Curing of concrete curing may be defined as the operation of maintaining humidity and temperature of freshly placed concrete during some definite period following placing,casting or finishing to assure satisfactory hydration of cement and proper hardening of the concrete if the curing is neglacted in early period of hydration, the quality of. Self curing of concrete self curing is a curing system, introduced during 1990s with the introduction of chemical admixture which can reduce water evaporation in the set concrete, providing water internally resulting in self curing. 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. Selfconsolidating concrete is a highly flowable type of concrete that spreads into the form without the need for mechanical vibration. The chemicals should have abilities to reduce evaporation from solution and to improve water retention in ordinary portland cement matrix. Jun 17, 2019 selfconsolidating concrete is a highly flowable type of concrete that spreads into the form without the need for mechanical vibration. Pdf physical properties of selfcuring concrete scuc.
Sep 11, 2016 a curing practice involves keeping the concrete damp or moist until the hydration of concrete is complete and strength is attained. Concrete project conproj dg conproj r dg conproj n conproj r n 30x60 12x24 conproj 36dg 11 r10 a conproj 36dg lp 11 r9 60x60 24x24 conproj 60dg 11 r10 a conproj 60dg lp 11 r9 60x120 24x48 conproj 12dg 11 r10 a conproj 12dg lp 11 r9 120x120 48x48 conproj 120dg 11 r10 a. Strength comparison of selfcuring concrete and normal. An average increase in the compressive strength of 12% was found when self curing concrete of peg 400 was used in curing than the conventional curing of concrete. The improvement in the mechanical properties of selfcuring concrete scuc was superior while using selfcuring agent of chemical type polyethyleneglycol compared to aggregate type saturated leca as shown in table 4. Super plasticizer named glenium was used to improve the workability of concrete. Final report evaluation of selfconsolidating concrete celik. There fore each self compacting concrete has to be designed for the particular structure to be constructed. Fiberreinforced concrete seminar ppt with pdf report. The need for adequate curing of concrete cannot be overemphasized. Selfcuring concrete is the way for solving the difficulty faced with curing. In the present investigation, work strength and workability characteristics of selfcuring concrete are to be better found and which can be compared with conventional concrete of related mix design. Experimental study on self curing concrete using sodium lignosulphonate 1riyaz ahamed. Mohanraj rajendran m studied on selfcuring concrete incorporated with polyethylene glycol.
An average increase in the compressive strength of 12% was found when selfcuring concrete of peg 400 was used in curing than the conventional curing of concrete. Selfcuring refers to the process by which the hydration of cement occurs because of availability of additional internal water that is not a part of mixing water, that is. A measure of the ease by which fresh concrete can be placed and compacted. Polyethylene glycol400 is used in this experiment as a self curing agent. Prepare a concrete mix design for m30 grade concrete as per is 102622009. The values of 2% polyethyleneglycol and 15% saturated leca represent the optimum doses as self curing agents in concrete. Abstract the mechanical properties of concrete containing selfcuring agents are investigated in this paper. Compressive strength of cube and cylinder by ndt for selfcured concrete is higher than that of. In the present investigation, work strength and workability characteristics of self curing concrete are to be better found and which can be compared with conventional concrete of related mix design. Selfcompacting concrete applications and advantages. Fiberreinforced concrete frc seminar and ppt with pdf report.
The results show that the use of selfcuring agent ch. The chemicals should have abilities to reduce evaporation from solution and to. Curing of concrete purpose of curing curing methods. Excessive evaporation of water internal or external from fresh concrete should be avoided. The chemical agent peg is used with different percentage. The improvement in the mechanical properties of self curing concrete scuc was superior while using self curing agent of chemical type polyethyleneglycol compared to aggregate type saturated leca as shown in table 4. It holds short discrete fibers that are uniformly distributed and circumstances oriented. Experimental study on the properties of selfcuring concrete. Concrete basicsaims to provide a clear, concise explanation of all aspects of making quality concrete. Strength comparison of selfcuring concrete and normal curing. Introducing the selfcuring concrete in construction industry.
However working on the parameters which affect the basic properties of self compacting concrete such as plastic viscosity, deformability, flowability and resistance to segregation, self compacting concrete may be proportioned. Estimation of desired properties of self curing concrete. Selfcuring concrete is the best solution to the problem faced in the desert region and faced due to lack of proper curing. Potential materials cement of 53 grade fine aggregate. 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 design. An experimental investigation of selfcuring concrete. Stephen lane senior research scientist introduction in response to the reduction in the skilled labor force in japans construction industry and the consequential reduction in the quality of construction, researchers at the university of tokyo. 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. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. The simplest way of selfhealing is to ensure that extra dry cement in the concrete exposed on the crack surfaces can react with water and carbon dioxide to heal and form a thin white scar of calcium carbonate.
The concrete specimens are subjected to dryair curing regime 25 c during the experiment. The physical properties of concrete were evaluated at different ages, up to 28 days. Period of curing for conventional cubes after moulding the concrete specimen, the specimen shall be kept in curing tank with full of water for 28th days continuously. Experimental investigation on selfcuring selfcompacting. Fiberreinforced concrete frc is concrete consisting fibrous material which increases its structural purity. These agents retard the water loss from concrete, so that sufficient amount of water poured at the time of mixing of concrete is retarded and sufficient for curing of concrete in later stages. Pdf experimental study on the properties of selfcuring. Download latest collection of civil enigneering and construction seminar ppt,presentation for last semester diploma civil engineering students with free of cost.
Self curing concrete scc can cure without using any external curing methods. The first section will delineate a brief research history of. Uks first major trial of selfhealing concrete gets underway. The investigational study is approved out to examine the use of water retains by admixtures as self curing agent. Student, structural engineering part time 202016, bharathidasan institute of technology anna university, tiruchirappalli, tamilnadu, india. Evaluation of selfconsolidating concrete celik ozyildirim, ph. 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.
If you choose a color by viewing this on your pc or from a printout of the pdf file, your colored concrete may be a big surprise. Self compacting concrete is basically a concrete which is capable of flowing in to the formwork, without segregation, to fill uniformly and completely every corner of it by its own weight without any application of vibration or other energy during placing. Self curing concrete is the way for solving the difficulty faced with curing. Incorporation of silica fume into concrete mixtures enhances all physical properties. Assistant professor 3durai priyadarshini, 4kalaivani. Curing begins immediately after placement and finishing so that the concrete may develop the desired strength and. Selfcompacting concrete is a nonsegregating concrete that is placed by means of its own weight. The values of 2% polyethyleneglycol and 15% saturated leca represent the optimum doses as selfcuring agents in concrete. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement.
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