It is fabricated by adding photocatalyst into conventional concrete, and the most appropriate photocatalyst to fabricate photocatalytic concrete is tio 2. Development of photocatalytic pervious concrete pavement. Nanotechnology in concrete materials figure 1 the topdown and bottomup approaches in nanotechnology 1 sanchez and sobolev, 2010. In residential construction, shear walls are straight external walls that typically form a box which provides all of the lateral support for the building. Moreover, clean concrete will reflect more light, reducing the heat buildup associated with urban heat islands. Also explore the seminar topics paper on nano 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. When light and heat strike the surface of the concrete, catalysts such as titanium oxides use the energy to break dirt into basic oxygen, water, carbon dioxide, nitrate and sulfate molecules. Seminar report on self healing concrete linkedin slideshare. Jun 17, 2019 self consolidating concrete may have to be placed in lifts in taller elements. 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. Since the costs involved for maintenance and repair of concrete structures are usually high, this research focuses on the development of self healing concrete. Selfcleaning concrete titanium dioxide concrete scribd.
Lbox test experimental procedure the procedure adopted in the study is as follows 1 using japanese method of mix design, initial mix design was carried out at coarse. New construction material called photocatalytic concrete is self cleaning, and in addition it is a filter for air pollution and it is used for. Self cleaning concrete strong sunlight or ultraviolet light decomposes many organic materials in a slow natural process observe how items left in a shop window fade and become brittle with time. Download the latest pdf and ppt on slideshare for civil projects. Selfcleaning concrete using photocatalysts concrete decor. Self cleaning concrete is attractive not only because of its self cleaning abilities but also because of its environmentally friendliness. Photocatalytic concrete has the capability to realize air depollution, selfcleaning, and selfdisinfecting. May 09, 20 powerpoint presentations and detailed seminar reports. Building made by using self misericordia, rome, italy from construction and building materials 25 2011, 587 nanofe 2 o 3 has been found to provide concrete with selfsensing capabilities as well as to improve its compressive and. Selfhealing of concrete a new technology for a more. Jonkers delft university of technology, faculty of civil engineering and geosciences, department of materials and environment microlab, delft, the netherlands a typical durabilityrelated phenomenon in many concrete constructions is crack formation. The catalyzed compounds break down into oxygen, carbon dioxide, water, sulfates, nitrates, and other substances that are either beneficial or have a relatively minor effect on the environment. The photocatalytic reaction can occur under the light when energy is higher than.
Photocatalytic selfcleaning concrete properties, applications, advantages. Corrosion of reinforcement in hvfa concrete advanced construction materials. You have seen this process, for example, in the way the plastic dashboard of a car fades and becomes brittle over time. What makes self cleaning concrete so amazing is that the cleaning happens without any scrubbing, thanks to the power of the sun. Experimental study on self cleaning concrete by replacing. Explore nano concrete with free download of seminar report and ppt in pdf and doc format.
Self cleaning concrete or p hotocatalytic concrete will keep t he concrete surface fr ee of dirt and k eeps its col our, even in polluted condition and industrial areas. Microsilica in concrete silica fume concrete high performance concrete application of infrared thermography in concrete engineering self compacting concrete superplasticisers for ready mix concrete plants advancement in concrete technology. The selfcleaning concrete is a potential approach to make the city cleaner by reducing the air pollutants. The photocatalytic reaction can occur under the light when energy is higher than the photocatalyst band gap.
Bacterial concrete or self healing concrete for crack repairs. What exactly is selfcleaning concrete, and how does it work. Griffin, president of cleaning consultant services, inc. In this project, the scc was mixed onsite and pumped through a piping system to the specified point, located 200 meters away.
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. Mainly air pollution so as a civil engineer we need to make the solution. An environmental friendly solution for air purification. Decorative concrete training industry training events. The selfcleaning ability of the prepared cement samples were evaluated in a photocatalytic activity test under sunlight as well as artificial uvlight. Better yet, architectural precast concrete with new material technology can remove pollutants from the air while actually rinsing itself clean in the rain. Concrete has to be heavily vibrated for flow into very intricate forms or forms that have a lot of reinforcing bars. May 08, 2014 a special construction material that keeps concrete whiter than white. Complete precast, gfrc, and business training for those starting a creative concrete business.
Explore self compacting concrete with free download of seminar report and ppt in pdf and doc format. This cost will vary among readymix concrete producers. For answer to your question please go to the bottom of this postconclusion. It is a new construction material that has been developed in the past three decades. Photocatalytic selfcleaning concrete properties, applications. Self compacting concrete scc advantages and disadvantages. 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. As per is4562000 6, cement is replaced by weight of material. Concrete technology seminar topics engineers world online. The following professional cleaning seminars are offered in cooperation with cleaning consultant services, inc. Pdf the present work explores to study the compressive strength and selfcleaning properties of the.
Thus the basic concept behind nanomodification of materials is that of bottomup. Hence to overcome these defects the self compacting concrete is used. Jun 19, 2016 seminar report on self healing concrete 1. Mar 14, 2017 for answer to your question please go to the bottom of this postconclusion. Selfcleaning concrete will not require the use of the solvents now used to clean buildings, eliminating another source of pollutants. Selfcleaning concrete or p hotocatalytic concrete will keep t he concrete surface fr ee of dirt and k eeps its col our, even in polluted condition and industrial areas. Selfcleaning buildings may sound like a futuristic concept, but they do exist today, providing aesthetic, environmental and nocost maintenance service. Although photocatalytic concrete resisted rapid freeze and thaw damage very well, in terms of deicer salt scaling performance, only. This may help keep our cities cooler during hot seasons. Faster construction and requires less manpower reduce the overall cost of production. Nano concrete seminar report, ppt, pdf for civil engineering. Properties and performance of photocatalytic concrete.
A special construction material that keeps concrete whiter than white. Types of bacteria, its mechanism and preparation of bacterial concrete is discussed. Powerpoint presentations and detailed seminar reports. May 23, 2014 italian cement manufacturer italcementi i. Download seminar report for bacterial concrete, abstract. This new astonishing concrete that not only keeps itself. Unfortunately, the costs of the technology are still quite high, about 3040 about. S, scientist, and rajamane n p, deputy director and head, concrete composites lab structural engineering research centre, csir, chennai excessive evaporation of water internal or external from fresh concrete should be avoided. Self compacting concrete seminar report, ppt, pdf for. When light and heat strikes the concrete s surface, catalysts usually titanium oxides use that energy to break down the dirt into molecules like oxygen, water, carbon dioxide, nitrates, and sulphates. Self healing of cracks in concrete would contribute to a longer service life of concrete structures and would make the material not only more durable but also more sustainable. An environmental friendly solution for air purification and selfcleaning effect. Year self healing bacterial concrete type the document subtitle zeeshan manzoor bhat enroll no. 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.
Selfcompacting concrete applications and advantages. Selfcleaning, airpurifying pervious concrete pavement is a promising technology that can be constructed with aircleaning agents with superhydrophilic photocatalyst capabilities, such as. Pdf study on selfcleaning concrete using nanoliquid tio2. 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. Nrmcas seminars, training and educational programs, steps, support all these needs with a comprehensive set of learning opportunities created specifically for the ready mixed concrete industry. A construction material remove pollutants from the air as it. In modern days, the use of technology has taken the standards of construction to a new high level. The majority of selfcleaning surfaces can be placed into three categories. Download seminar report for bacterial concrete, abstract, pdf. Shear walls are constructed to counter the effects of lateral load acting on a structure. The self cleaning functionality of these surfaces are commonly inspired by natural phenomena observed in lotus leaves, gecko feet, and water striders to name a few. Steps features dozens of seminars and workshops and individual course certification opportunities. The ultimate creative concrete countertop training feb 2428 in orlando, fl.
Mar 20, 2016 need for the self cleaning concrete now a days other than any thing pollution plays main role in the mass destruction of environment. This type of concrete having a photocatlyst in it is known as photocatalytic concrete or selfcleaning concrete, which is a green construction material. Although the selfcleaning properties of photocatalyst materials were known since the 1960s, it is only in recent years they have begun to be used in a wide manner. Self healing bacterial concrete linkedin slideshare. With this selfhealing concrete, buildings repair themselves. Selfcleaning concrete is attractive not only because of its selfcleaning abilities but also because of its environmentally friendliness. The use of this contemporary cement composite in urban and interurban areas can reduce maintenance cost and ensure a cleaner environment. Selfcleaning surfaces are a class of materials with the inherent ability to remove any debris or bacteria from their surfaces in a variety of ways. Selfcompacting concrete has been used in bridges and even on precast sections.
The natural selfhealing ability of concrete, known as autogenous healing, has been understood for around 20 years. How feasible is selfcleaning concrete in terms of costs when. One of the most remarkable projects built using selfcompacting concrete is the akashikaikyo suspension bridge. Conventional concrete tends to present a problem with regard to adequate consolidation in thin sections or areas of congested reinforcement, which leads to a large volume of entrapped air voids and compromises the strength and durability of the concrete. The selfcleaning functionality of these surfaces are commonly inspired by natural phenomena observed in lotus leaves, gecko feet, and water striders to name a few. There are, however, m any variations of this procedure and a few are listed below. Bacterial concrete or self healing concrete fills up the cracks developed in structures by the help of bacterial reaction in the concrete after hardening. Geopolymer concrete made from waste is the concrete of a sustainable future.
Apr 18, 2015 shear walls are vertical elements of the horizontal force resisting system. Shear walls are vertical elements of the horizontal force resisting system. Scc can be placed easily in complicated formwork and dense reinforcement. Self cleaning street model civil engineering projects. Production of scc requires more experience and care than the conventional vibrated concrete. The effect can be seen in many old structures, which have survived for such long periods of time with only limited maintenance.
The most prominent properties of the type of concrete is self cleaning ability. The selfcleaning properties of the concrete are induced by introducing the photocatalytic materials such as titania tio2 and zinc oxide zno. Selfcleaning concrete strong sunlight or ultraviolet light decomposes many organic. Selfcompacting concrete procedure for mix design article pdf available in leonardo electronic journal of practices and technologies 712 june 2008 with 35,326 reads how we measure reads. A construction material remove pollutants from the air as it keeps its surface clean. Calcium silicate hydrates csh and the photocatalysis properties of tio 2 nano particles. Self cleaning concrete is produced by adding catalytic material to the concrete mixture.
Jun, 2017 photocatalytic concrete has the capability to realize air depollution, self cleaning, and self disinfecting. P,india is used as additives according to astm c 618 5. After the process water plays main role as a source of rain fall or manual cleaning so clean the concrete with the water or otherwise it was. Concrete is a mixture of cement, sand, gravel and water which dries hard and strong and is used as a material for building. Photocatalytic materials tio2 are a technology that could help mitigate air. Selfcleaning concrete strong sunlight or ultraviolet light decomposes many organic materials in a slow natural process observe how items left in a shop window fade and become brittle with time. The influence of coarse aggregate on the self compactability of fresh concrete, especially flowability through obstacles, can be equal despite the shape of the coarseaggregate particles shape as long as the ratio of coarse aggregate content to its solid volume in concrete is. Pdf behaviour of self cleaning concrete using photocatalytic. How feasible is selfcleaning concrete in terms of costs. 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.
Building made by using self misericordia, rome, italy from construction and building materials 25 2011, 587 nanofe 2 o 3 has been found to provide concrete with selfsensing capabilities as well as to improve its compressive and flexural strengths. Self cleaning abilities were evaluated in the photocatalytic activity test. What exactly is selfcleaning concrete, and how does it. Providing a firm foundation for the entire concrete and masonry industries, this event features special product and action areas, as well as demos and seminars. The concrete was cast along the entire lengths of the walls to avoid construction joints. Strong sunlight or ultraviolet light decomposes many organic materials in a slow, natural process. In this study, a photocatalytic concrete with ultrasmooth surface was fabricated with a new approach taking use of the nano granular nature of the main hydration product of cement i. It is super workable due to its low watercement ratio, which gives rapid strength development, more durability, and best quality. The rigid, polymer concrete, bodied raindrain, complete with boltless locking galvanized slotted grates was ideal to provide the delineation line between the brick paved areas and the asphalt parking lot. Sep 15, 2017 self cleaning street, civil engineering department. To his surprise, when the air around the treated concrete was tested, it contained up to 80 per cent less nitrous oxide.
When we clean stuff, we tend to use a substance which can break down dirt so it can be washed from the objects surface, plus a bit of energy to make sure that reaction happens. Preparation of titanium dioxide nano particle modified. Self compacting concrete seminar report, ppt, pdf for civil. The natural self healing ability of concrete, known as autogenous healing, has been understood for around 20 years. Photocatalysts accelerate this process, and as a catalyst they stimulate the chemical transformation without being consumed by the reaction. Conference paper pdf available may 2016 with 6,885 reads. Final report evaluation of selfconsolidating concrete celik. Self cleaning surfaces are a class of materials with the inherent ability to remove any debris or bacteria from their surfaces in a variety of ways. On the surface of self cleaning cement, the cleaning happens without any scrubbing involved. Selfcompacting concrete procedure for mix design paratibha aggarwal, rafat siddique, yogesh aggarwal, surinder m gupta figure 2. When shear walls are designed and constructed properly, and they will have. Pdf selfcompacting concrete procedure for mix design.
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