Methods of curing concrete for different structures adding water to portland cement to form the watercement paste that holds concrete together starts a. For curing of concrete, we require large amount of water. The need for adequate curing of concrete cannot be overemphasized. She was concluded that the optimum dosage of peg400 for maximum compressive strength was to be 1% for. The selfcuring process of concrete takes place from inside to outside, thus reducing the autogenous shrinkage and selfdesiccation, especially for the highperformance concrete with relatively low waterbinder ratio. Aci documents are available in print, by download, on cdrom, through electronic subscription, or reprint and may be obtained by contacting aci. Self curing of concrete concrete construction aggregate. Figure 5 effect of selfcuring agent type on volumetric water. Polyethylene glycol400 is used in this experiment as a self curing agent. Fhward02099 january 2005 research, development, and technology turnerfairbank highway research center 6300 georgetown pike mclean, va 221012296. Presentation on self curing concrete concrete chemistry. It decreases the life of the structure and reduces its stability against earthquakes. Slump flow test on self compacting concrete for workability.
Selfcompacting concrete has been used in bridges and even on precast sections. Experimental investigation on selfcuring selfcompacting. She added 12% of peg400 by weight of cement for m25 and m40 grade concrete. 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. We know that cracks are a major problem in concrete. Concrete basicsaims to provide a clear, concise explanation of all aspects of making quality concrete.
View self curing concrete slides ppts online, safely and virusfree. An experimental investigation of self curing concrete norporat wt poly tyln lyol as s l urn a nt shikha tyagi m. Physical properties of selfcuring concrete scuc article pdf available july 2014. In this study strength parameters of selfcompacting concrete, selfcuring concrete, selfcompacted self.
Shikha tyagi studied on self curing concrete and had use peg400 as a self curing agent in concrete. 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. 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. Self compacting concrete seminar report, ppt, pdf for. If you are unable to download any of the topics mentioned below, you can mail to the admin to get the soft copy of the topic of your interest. But nowadays more problems for water because water is falling in its quantity in environment, so in place of water there an urgent requirement to find substitute to make concrete and for construction works. Download as ppt, pdf, txt or read online from scribd. 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. Water retention and durability article pdf available in aej alexandria engineering journal 293 april 2015 with 3,157 reads how we measure reads.
It was found that peg 400 could help in self curing by giving strength on par. Because scc is a viable solution to various concrete placement problems, astm has established subcommittee c09. The characteristic of a self curing agent is to reduce the water evaporation from concrete, and therefore they grow the water retention capacity of concrete as compared to the conventionally cured concrete. Student, structural engineering part time 202016, bharathidasan institute of technology anna university, tiruchirappalli, tamilnadu, india. Pdf internal curing of concrete by the use of presaturated lightweight. Pdf experimental study on the properties of selfcuring. 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. Selfcuring concrete sc is a concrete type that can be cured without using any external curing regimes. Currently, there are two major methods available for internal curing of concrete. On the other hand, strength of silica fume and selfcuring concretes increased. From several years researchers are finding the answer to this solution.
Selfcuring concrete is the best answer for desert area where the availability of water is very less or not. Selfcompacting concrete applications and advantages. Internal curing is often also referred as self curing. Experimental study on strength characteristics of self. 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 is one of the special concretes in mitigating insufficient curing due to human negligence paucity of water in arid areas, inaccessibility of.
Selfcuring concrete is one of the special concretes in mitigating insufficient curing due to human negligence paucity of water in arid areas, inaccessibility of. Potential materials cement of 53 grade fine aggregate. In this research chemical curing agent is used to produce sc. Effect of selfcuring agent type on compressive strength of concrete cured in air. The selfcuring agent can absorb moisture from atmosphere and then release it into concrete. Guide for curing of portland cement concrete pavements, volume i publication no. Selfcuring or selfhealing coatings are considered to be smart material coatings that have the ability to sense cracks or damage caused by mechanical usage over the time. A selfcuring coating has the ability to repair damage by itself or with some outside stimulation. Experimental study on bioself cured marble powder based. Internal curing of self compacting concrete using polyethylene glycol written by kunjir swapnali, vetal shailesh, desai tejaswini published on 20160330 download full article with reference data and citations. It can perform by several methods such as using lightweight aggregate or chemical agents. Most aci standards and committee reports are gathered together in the annually revised aci.
Incorporation of silica fume into concrete mixtures enhances all physical properties. Introducing the selfcuring concrete in construction industry ijert. A measure of the ease by which fresh concrete can be placed and compacted. Pdf mechanical properties of concrete depend on the curing condition of concrete. Introducing the selfcuring concrete in construction industry. Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. The use of selfcuring admixtures may be very crucial from the point of view that saving of water is a necessity every day every one cubic. 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. Shikha tyagi studied on selfcuring concrete and had use peg400 as a selfcuring agent in concrete. Without workability concrete cannot be used for construction. In this project, the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away. A method for selfcuring concrete is provided to solve the problem that the degree of cement hydration is lowered due to the improper curing, and thus unsatisfactory properties of concrete. Curing is the most important phase for achieving strength.
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. Selfcured concrete is a type of concrete with a special ability to reduce autogenous shrinkage responsible for earlystage cracking. Conventional concrete, which is the mixture of cement, fine aggregate, coarse aggregate and water, needs curing to achieve strength. The chemicals should have abilities to reduce evaporation from solution and to. Curing has a strong influence on the properties of hardened concrete. Higher cement content andor lower watercement ratio leads to more effective results of selfcuring agents in concrete. Selfcuring concrete is one of the special concretes in mitigating insufficient curing. Presentation on self curing concrete free download as powerpoint presentation. Methods of curing concrete structures and their comparisons. Concrete is an universal construction material and cement, water and aggregates are its. Selfcuring concrete is the way for solving the difficulty faced with curing. Any negligence in in curing will interfere in the strength and durability of concrete.
The characteristic of a selfcuring agent is to reduce the water evaporation from concrete, and therefore they grow the water retention capacity of concrete as compared to the conventionally cured concrete. Chemicals to achieve self curing some specific watersoluble chemicals added during the mixing can reduce water evaporation from and within the set concrete, making it self curing. Selfhealing of concrete a new technology for a more. In this investigation the method of selfcuring of the concrete is applied using polyethylene glycol peg 400, with the aim of proposing a novel alternative of curing in the concrete that suppresses the traditional external curing of the concrete indicated in astm c31, in order to obtain expected compression resistance results, observing the development of concrete hydration processes. External self curing concrete is the one which can cure itself by retaining its moisture content within the concrete by the application of. 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. The information in this document is expected to inform concrete producers, users, and specifiers of scc of known practices and processes. Selfcuring concrete introduction 1muddassir bora,2mausam vohra 3mohammed sakil patel, 4dhruv vyas 1,2,3students, 4professor civil department, sardar patel college of engineering, anand,india abstractthe strength and durability of concrete depends on. 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. 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.
Most aci standards and committee reports are gathered together in the annually revised aci manual of. Repair is initiated when microcapsules of resins contained in the coating rupture and react. Selfcuring concrete is achieved by means of replacing a part of aggregate by lightweight aggregate or adding chemical admixtures. M25 and m40 grade of concrete are adopted for investigation. There are two major methods available for internal curing of concrete.
It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. According to the invention, at least a layer of selfcuring agent is applied onto a concrete after placing. Pdf physical properties of selfcuring concrete scuc. 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. 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. One of the most remarkable projects built using selfcompacting concrete is the akashikaikyo suspension bridge. Concrete basicsaddresses the needs of unskilled and semiskilled persons undertaking general concreting projects including home and handyman projects.
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