Comparison Of Mivan Formwork System With Conventional System Construction Essay

Comparison Of Mivan Formwork System With Conventional System Construction Essay In recent times due to globalization, the construction industry has started focusing on new innovative ways of working. The construction industry has started adopting new technologies and approaches in order to increase the overall efficiency of the project. This report is about the modern methods of construction and smart materials that can be used to improve the overall construction process. The first half of the report is on the aluminium formwork systems (Mivan System) which is used for mass housing construction. This system of aluminium forms is fast, durable, cost effective and also produces quality work which requires minimum maintenance. The second half of the report is on green roofs a smart material which is a replacement for traditional roofs. Today in this modernized world where global warming is the major concern for all countries, green roofs can be one of the innovative ways to reduce the energy consumption which ultimately helps in reducing the CO2 emissions. 1. Introduction The construction industry is one of the biggest industries in the whole world. The contribution of this industry towards the global GDP is enormous. In recent years due to globalization and advancement in technologies there has been a tremendous development in the construction industry. However despite of the boom in construction activities the scenario on the housing front remains far from satisfactory. In the countries like India and China the situation on the housing front is even worst. Due to ever increasing population in these countries there is an overgrowing demand for housing. Now keeping in view the gigantic task of providing affordable shelter to masses, adoption of modern and cost effective technology assumes greater significance. The modern methods of construction are broad range of processes and products that aims to improve business efficiency, quality, customer satisfaction, environmental performance, sustainability and the predictability of delivery timescales (Baker 33 Cross industry Group, 2006). Today there is a growing realization that the speed of construction needs to be given greater importance especially for large housing projects. For undertaking mass housing works, it is necessary to have innovative technologies which are capable of fast rate construction and are able to deliver good quality and durable structure in cost effective manner (Anon, 2010). Several systems are adopted all over the world but Mivan system has proved to be reasonably economical and capable of fast rate construction of mass housing. In this system walls and slabs are cast simultaneously at site by use of specially designed, easy to handle light weight aluminium forms (Anon, 2010). The system is far more faster than the traditional beam and column construction. However as per Sir John Egan report Rethinking Construction (1998), the commitment from major clients, from the construction industry itself and from the government is the only way forward to create and sustain the environment that is needed for significant improvement in performance, efficiency and quality of the construction. The construction projects are getting more complex in nature due to growing human endeavour and the construction industry need to respond to the unique challenges presented in front in terms of time cost and quality. Also the industry will need to respond to the major issues such as global warming and health and safety of the workers. We as a member of the construction industry will need to overcome these issues by using modern methods of construction (like Mivan System) and smart materials (like green roofs) for carrying out projects. The main objective of this report is to explore modern methods of construction and smart materials and also to evaluate their impact on the construction process in terms of time, cost and quality. In the first half of the report, the use of Mivan formwork system during the construction process is discussed while in the second half idea of using green roofs is discussed. 2. Mivan formwork System: (Aluminium formwork system) Mivan is basically an aluminium formwork system developed by the Mivan Company Ltd from Malaysia in the year 1990. The technology has been used extensively in other countries such as Europe, Gulf Countries, Asia and all other parts of the world. MIVAN technology is suitable for constructing large number of houses within short time using room size forms. In this system of formwork construction, cast in situ concrete wall and floor slabs are casted monolithically in one continuous pour. Large room sized forms for walls and floors slabs are erected at site as shown in the figure1 below. These forms are strong, easy to handle and are fabricated with accuracy. They can be used repetitively around 250 times. The frames for windows and door as well as ducts for services are placed in the form before concreting as shown in the figure 1. Staircase flights, faà §ade panels, chajjas and jails etc. and other pre-fabricated items are also integrated into the structure as shown in figure 1 and 2. This proves to be a major advantage as compared to other modern construction techniques. Figure 1: A set of Mivan formwork Figure 2: Staircase flight formwork 2.1 Comparison of Mivan formwork system with Conventional Construction The table below shows the relative comparison between the Mivan form work system and the conventional system. The comparison is made on the factors such as speed of construction, quality of construction, aesthetics, external finishes and maintenance. Factors Conventional Construction Mivan formwork system Speed of construction The speed of construction is much slower due to step by step completion of different stages of the activities such as erection of formwork, concreting and deshuttering and thereafter plastering and other finishing activities. In this system the wall and the floors are casted simultaneously in one continuous operation and also the finishing work can be started immediately, so the speed of the construction is much faster. Quality Due to conventional method of construction normal quality is obtained Superior quality is obtained due to in-situ casting of whole structure and transverse walls done in continuous operation Aesthetics In the case of conventional construction the partition walls are made up of bricks due to which the column and the beam show unsightly projections in room interiors. In case of Mivan system the partition wall and the ceiling elements are casted together due to which the interiors have neat and clean lines without unsightly projections in various corners. The wall and the ceilings also have a smooth even surface. External finishes All the external walls are made up of bricks, so it requires manual cement plastering which needs to be repainted frequently. All the external walls are made up of concrete and do not require manual cement plastering and also have smooth finishing, so this will need no frequent repainting. Maintenance The maintenance cost is too high as it requires frequent repairs of plasters of wall and ceilings, painting of outer and inner walls due to leakages. The maintenance cost is negligible as the walls and ceiling are made up of high quality concrete which do not require frequent repairs. Table 1: Comparison of Mivan Formwork System with Conventional construction 2.2 Benefits of Mivan formwork System According to Mivan (Thailand) Limited the following are the main benefits of using Mivan formwork system. 2.2.1 Speed of construction: The structure is completed much faster than the traditional formwork as a large amount of work can be completed in each daily work routine. There is no need for brick laying and plastering as all walls can be formed at the same time. Finishing work such as window fixing, wall tiling and plumbing work can be installed immediately once the concrete is casted. 2.2.2 Building strength and durability: The walls and the floor slabs are casted simultaneously so there are no weak joints. The walls are made of reinforced concrete which provides much greater stability than columns with brick walls. The wall surfaces are made of concrete which do not crack like plaster and maintains a smooth surface for much longer time. 2.2.3 Quality of finishing building: The formworks are manufactured precisely which allows the concrete to be cast to exact dimensions as designed. Services like water supply some waste pipes and electrical conduits, can be cast into the concrete where it is protected and not visible. 2.2.4 Financing cost: Fast project completion saves financing charges as the buildings can be transferred to the owners much earlier than traditional methods. 2.2.5 Efficiency and cost saving: There is no requirement of labours for building brick walls and plastering as major part of the structure is cast in concrete by small group of workers. The project can be completed in shorter time due to fast production methods which save onsite running, operating and financing cost. The formwork panels are light in weight and can be lifted manually, so there is no need of spending money for heavy cranes for lifting. Less skilled labours are required on the site as all the finishing items are prefabricated. 2.2.6 Environmental benefits: The formworks are made up of aluminium which can be reused and also can be recycled to make other products. 2.3 Case study The following is a case study which justify that incorporating Mivan formwork system in the construction project is very beneficial to the project. 2.3.1 Infinity tower- Dubai As per MFE formwork technology (2008), the Infinity Tower in Dubai is a 73 storey residential tower with a dynamic twisting shape as shown in the figure 3 below. The tower is more than 300 meter in height and has been designed by Skidmore Owings Merrill who also designed the worlds tallest tower, Burj Khalifa which is 828 meters in height. The contract was awarded to Arabtec Construction. The structural system for the tower is high strength with a reinforced concrete column superstructure that rotates with the twisting shape. In addition, each floor will accommodate a 1.08-degree twist to achieve the full 90-degree spiral. Figure 3: Infinity Tower (Source: MFE formwork technology) The tower was constructed by using a light weight aluminium formwork system. A special twisting aluminium panels were made to obtain the precise design. The tower was constructed at a speed of 8 floors per month when the site was in full flow, maintaining zero tolerance with regard to site safety. Now by referring to this case study, it is clear that the use of Mivan formwork system not only improves the quality and speed of construction but also maintains site safety. 2.4 Limitations of Mivan formwork System The following are the limitations of using Mivan formwork System Modifications are not possible as all members are cast in RCC. Concealed services become difficult due to small thickness of the components. The aluminium formworks are far more expensive than the conventional formwork. Heat of hydration is high due to shear walls. The finishing lines can be seen on concrete surfaces due to small sizes. It requires uniform planning as well as uniform elevations to be cost effective. The shrinkage cracks are likely to appear due to box type construction. The formwork can be cost effective only if it is used in symmetrical type of structure. 3. Green Roofs Green roof refers to a system of roofing that uses plant life for roof covering instead of traditional covering materials (Green Roofs Today, 2010). Department of Trade and Industry (2004) defines the smart material as a material that senses its environment and responds. Green roofs provides constant temperature throughout the year due to high degree of insulation they provide, hence they can be termed as smart materials. Green roofing has become increasingly popular in the cities as it creates additional green spaces that bring some nature in concrete and steel jungle (Green Roofs Today, 2010). Green roofs are visually appealing and create an attractive contrast to concrete and steel as show in the figure 4-5 below. Figure-4 (Green Roofs) Figure-5 (Green Roofs) There are several components of green roofs which besides plants include a growing medium, a filter cloth, drainage, insulation and a waterproof membrane (Green Roofs Today, 2010). These components are shown in the figure 6. The construction of rooftops and the selection of plants for roof covering depend on the factors such as size of the building and type of roof. Now for construction of green roof both flat and slopped roofs are suitable but for construction of large park like roof system only larger buildings are appropriate as accommodation of large plants and trees are too heavy for medium sized buildings. Figure 6: Components of Green Roofs (Source: Green Roofs Today, 2010) Green roofs are mainly of three types; Intensive, Semi-Intensive and Extensive roofs, depending upon the selection of plants (Green Roofs Today, 2010). Intensive green roofs are those that accommodate large plants, trees, full lawns etc. This type of green roofing requires a significant depth of soil and also requires heavy maintenance. Semi Intensive green roofs are those that accommodate moderate size of plants and require less maintenance. Extensive green roofs is the most convenient of all types of green roof systems and involves roof covering with a thin layer of growing medium and vegetation that requires minimal care and maintenance (Green Roofs Today, 2010). The factors which are taken into consideration while designing green roofs are orientation of roofs, preferred planting, level of maintenance and performance expected from the plant layer (Green roofs, 2006). As the intensive roofs consist of deep layer of growing medium, it needs special consideration at the time of designing as they require specific support from the building. Conversely, extensive green roofs require negligible structural support from the building, hence no special consideration is given at the time of designing them (The green roof centre, 2010). 3.1 Benefits of Green Roofs System The following are the benefits of Green Roof systems; Plants reduce the air pollution by absorbing harmful gases including carbon dioxide and releasing oxygen. Green roof system therefore reduces the air pollution and makes the air cleaner and healthier especially in urban areas where quality of air is a major problem. Plants tend to absorb the heat from the air and release it into the air when the temperature drops. Green roof system therefore helps in lowering the temperature of the urban areas. It also helps the building owners to reduce their cost for heating for heating and cooling which is good for the environment too because most cooling and heating systems are powered by energy that is obtained from non-renewable sources such as fossil fuels. Plants that cover the roofs can absorb up to 75% of the rain water. Therefore the green roofs system significantly reduces the amount of water that runs in to the sewage system. The plants also filter many pollutants in rainwater including heavy metals. The rainwater that is absorbed by the green roofs is then released into the air via condensation (Green Roofs Today, 2010). Green roofs system offer a natural habitat to many local animal life including insects and birds that were virtually driven out from urban centres. Green roofs systems are extremely durable and can last up to 50 years. It also does not virtually require any repair like many other roofing systems. Green roofs combined with other green technology such as solar thermal collectors and solar photovoltaic panels can further reduce the costs for heating and cooling as well as help combat the global warming (Green Roofs Today, 2010). The figure below from the (Green Roofs Today, 2010) shows the main benefits of green roofs system. 3.2 Limitation of Green Roofs System The following are some of the limitations in installing the green roofs system; Higher capital cost Lack of awareness and knowledge No insurance cover is provided for green roofs Difficulty in maintaining and accessing roofs. 4. Recommendation Due to globalization and competition there is a tremendous pressure on the construction industry regarding the time, quality and cost of the work. With the implementation of the modern construction methods such as Mivan Formwork System and smart materials like Green Roofs the issues related to the time, cost and quality can be overcome. Although the initial cost of implementing such methods and smart materials are quite high the total amount saved at the end of the project life cycle is substantially more than the increase in the initial cost. The construction firms all over the world have been slow to adopt new innovation and changes. It is the need of time to analyse the depth of problems and find effective solution. Mivan system serves as an efficient tool to solve the problems of mass housing fronts all over the world. The system has a great potential to provide high quality construction at unbelievable speed and at reasonable cost which was justified in the report with the help of a case study. Hence it is recommended to use Mivan formwork system over the traditional formwork system Amid fears of global warming, deforestation, melting of ice on both the poles, increase in average temperature in next few decades, green roofs can be looked up to as a potential solution which can help in optimising use of rain water, conserving energy, improving aesthetical view of buildings and improving living conditions inside the building. Hence implementation of green roof is recommended as it will save large amount of resources. 5. Conclusion It can be concluded that the modern methods of construction such as Mivan formwork system are the key to meeting the demand for efficient, sustainable housing. Also the quality and speed must be given due consideration with regards to economy. Mivan formwork system not only helps in improving the quality and efficiency of the work but also has helped in maintaining the site safety. Anything that is good for the environment is good for humankind as well, so the investment in the green roofs is considered to be the best way in reducing the negative impact of humans on the environment. Green roofs not only reduce the adverse impact on the environment but also help the people in reducing their bill for heating and cooling.

All About Me Letter Essay

My favorite sports are football and basketball. I play the recorder. I participated in football for three years and basket ball for one year. I played the recorder for one year in the fourth grade and earned all the belts for each skill level. On the other hand I don’t like to read what so ever, but I’m going to improve my reading this year. I don’t like to read because I fall asleep as soon as I begin to read books. The books that I like are adventurous and action-packed books because they interest me so I won’t fall asleep. These kinds of books stimulate my imagination and help me visualize the story. In order to keep me interested in reading I would like to have audio or graphics books. I did great academically last year as I made A’s and B’s. My academic goals this year are to make straight A’s and to receive scores above 900 on the CRCT. Considering that I do not like to read, it’s hard for me to brainstorm ideas and write an essay. Therefore, I do not think of myself as a good writer, as I prefer digital images to awaken my creativity. The few times that I must write, I like to write narratives about my family vacations in new places. Narratives allow me to express my emotions. Unfortunately, brainstorming ideas causes me to have headaches that turn me off from writing. I hope to learn how to overcome this obstacle and improve my writing skills. In conclusion, you can help me achieve my academic goals by suggesting some action-packed or adventurous book titles for me to enjoy reading. I learn best by following examples and listening to instructions. The activities you can help me with are reading and sentence-structure in writing assignments. I welcome the opportunity to learn from your expertise. Sincerely, Phillip Harrington Phillip Harrington

Environment Affects Humans Health Essay

The environment affects human health in many ways in this short passage I will talk about air pollution and polluted waters. Air pollution is everywhere, and no we do not always see it but it is their harming everyone’s health. Why is air pollution bad for children’s health because it harms their lungs and increases the chances or childhood asthma. Air pollution is harmful to children’s lungs, but adults also. Air pollution has been known to cause a number of respiratory problems. Places with a higher rate of air pollution people tend to be at higher risk of heart problems. The reason why is because of the amount of air pollution that they breather every day is not helpful. Big companies that produce lots of air pollution should try to invest some money into their facility’s, so that there is not as much air pollution formed in the area. If the air pollution is toxic is can eventually higher someone’s rate of developing cancer. This means if you liv e in an area with lots of pollution, and can see the thick pollution clouds in the air chances are there is a higher cancer rate in that area because of the pollution the people are breathing in every day. Something has to be done to stop the amount of air pollution that is forming in some areas because it is severely harmful to people’s health, and the people of the companies producing it make it sound as if it is not harmful at all. The truth is that is does a lot more damage to our health than they are telling us.On to polluted waters it is not as bad as polluted air, but it is there. Polluted water is bad for us and can make us sick when we drink it or swim in it. Low danger symptoms that might occur from it are vomiting, diarrhea, skin rashes, and stomach problems. Do not think these are the only types of occurred symptoms that polluted water can cause because they only become worse. Polluted water can also cause developmental and reproductive problems these problems occur when we drink the polluted water for long lengths to time. Air pollution is not the only thing that causes everyone’s nightmare cancer polluted water also can cause it. The same as air pollution and breathing it we would have to drink lots of polluted water before this occurs. Tap water is normally safe to drink, but it is good to drink filtered tap water because water pollution can still travel through our reservoirs where they filter our tap water at. They pollution is normally very little traces of it in tap water, but on occasion they will be a high amount of pollution were the water company has to let us know of the  problem. The environment we live in can affect human’s health in many more ways than explained. We as humans create most the problems with the environment that we are faced with. Unfortunately I doubt that will change anytime soon, maybe in the far future. The two types of environmental problems I discussed were air and water pollutions and the harm that they do to humans.

Benefits Of A Diverse Workforce - 1003 Words

Benefits of A Diverse Workforce When the subject, cultural diversity is introduced as a topic, thoughts will vary. Some will associate cultural diversity with race. While others will think religion. The truth is, cultural diversity covers many areas. These areas range from sexual orientation to gender. The United States Department of Labor (DOL) website states by fostering a culture of diversity-or a capacity to appreciate and value individual differences-employers benefit from varied perspectives on how to confront business challenges and achieve success. It also addresses the fact that those with disabilities add a different perspective to the subject of cultural diversity. As previously mentioned, cultural diversity is usually†¦show more content†¦However, we must take cultural diversity laws, and turn the workplace into a culturally diverse environment. Discrimination and Accommodations The U.S. Equal Employment Opportunity Commission defines discrimination as actions that involves people treating a person (an applicant or employee) unfavorably because of his or her religious beliefs. This religious belief does not have to be what is considered a traditional, or common belief such as Judaism or Islam. It expands to cover beliefs held by to be religious, ethical, or moral. The law applies to any aspect of employment. Title VII also prohibits discrimination by segregating. The scenario addresses the request to have schedules adjusted to accommodate a two-hour prayer daily. Also, their religious beliefs require no form of work from Thursday at 3:00 PM and throughout Friday. When considering this request, consideration must be made with the other employees in mind. The first thing a Human Resource (HR) personnel must do is reference the law regarding the situation. This is to avoid issues that will be viewed as discrimination. There are certain circumstances when the employers can discriminate. If a religious accommodation is requested, but that request causes an undue hardship on the employer, the request can be denied. It would be acceptable to deny the request based on the deadline that is due Monday. That isShow MoreRelatedBenefits Of A Diverse Workforce2135 Words   |  9 Pagesits competitive advantage depend on upon its ability to increase the number of diverse employees, and to realize the benefits of it. Furthermore, the diverse workforce has become an increasingly important part of the American workforce. People with different backgrounds, knowledge, experience, and skills will bring new ideas which will benefit the entire team. A diverse workforce brings with it a lot of different benefits, as well as the potential disadvantages for corporate managers to manage. 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The Persecution Of The Jewish People - 1105 Words

There is masses of historical debate surrounding the progression of Jewish persecution by the Nazis, this often fuelled by ‘intentionalists’, who believe Genocide was indeed the intention of one man from the beginning, rather than the theories of the ‘moderate functionalists ‘, that reason that the persecution of the Jewish people was a progression of radical policy ,of an entire group of people, due to the perceived failings of the Nazis previous racial policies. Section 2 Introduction - Nazi Regime began in 1933 when Adolf Hitler was appointed chancellor of Germany - 6 million Jews had been killed by the end of the Nazi regime - Both Intentionalists and Functionalists have there valid scholarly and ethical points - Notable†¦show more content†¦Existed throughout European nations for centuries. Rulers placed legislation and restrictions on the Jewish community previously (E.g. Napoleon) - Memoirs written by Hitler while serving prison time for treason â€Å"The personification of the devil as the symbol of all evil assumes the living shape of the Jew. â€Å"(Adolf Hitler – Mein Kampf ) - Racial Purity and spatial expansion became the core values of Hitler’s Party and Regime - April 1 1933- Nationwide boycott of Jewish owned businesses - September 15 1935 - Nuremberg Laws are instituted ( Jews classed as second class humans - revoked political rights → marriage and sexual relations between Germans and Jews made illegal). - November 9, 1938 ‘ Kristallnacht’ (night of broken glass) Nationwide program, set in motion by Joseph Goebells Speech in response to Killing of German Propaganda minister by Young Jew in Paris. Sees homes, businesses and synagogues stormed and at least 91 Jewish peopke killed and 30,000 arrested. - Saw the beginning of Expulsion and Ghettonisation of the Jewish community, transporting masses of Jews out of Germany to occupied territory. - The series of events surrounding the persecution of the Jewish people shows strong lack of organisation and planning by Hitler and the Nazi party in how to approach their ‘Jewish

A Report On The Vietnam War - 1419 Words

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The Cold War developed anti- and pro-Communist views, shifting the United States’ focus towards defeating Communism and its supporters. The tensions from the Cold War developed into great animosity spurring from the clashing beliefs of Democracy and Communism. 20 years later, U.S. intervention combats Communism ’s spread in The Vietnam War. Although the U.S. thought it wasRead MoreKennedy s Policy Goals During The Cold War968 Words   |  4 Pagesan escalation in Vietnam. Kennedy viewed getting involved in Vietnam as a disruption to his foreign policy goals. One of Kennedy’s primary concerns during the Cold War was preventing escalation with the Soviet Union, it was a larger concern to him than to his advisors. The United States lacked support from other major countries and by interfering in Vietnam, the relationship with China that Kennedy wanted would have been negatively impacted. Kennedy’s priority during the Cold War was to defuse conflicts

Sentient free essay sample

Freedom comes from unexpected places. To wake up on a mattress as the morning sun leaks through hand-crocheted curtains, undoubtedly haggled from one of the local markets, and open a huge window to feel the pleasant, familiar smell of fresh bread from the bakery less than a football field away is freedom. To walk for hours and rest in fields of flowers is beauty, even when walking all the way home seems an unattainable task. Nature transcends calendars, alarm clocks, and computers and all necessities are within reach. The last time I visited my first hometown of Olsztyn, an enticing feeling of independence colored my young soul and illuminated my surroundings in a light that would bring me to what I am today. I found my most treasured aspects of life in a small Polish metropolis. At the beginning, Olsztyn was simply another place to which my mother brought my older sister, Julia, and me. We will write a custom essay sample on Sentient or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I always felt like a stranger to Olsztyn, unlike my sister, who was raised by the city itself, from her early years of playground-play to the beginnings of her teenage angst. After all, she was born there. My love for Olsztyn, however, began to grow only after my admiration for Julia, who slowly began telling me more and more stories, until my capacity of nostalgic thought was equally overflowing with memories of that northeastern city in Poland. I began to believe it was a truly magical place. In June 2006, a week after my 8th grade graduation, I happily, yet anxiously, boarded an airplane, from Chicago to Warsaw. The unusual combination of my emotions that day allowed me to leave Chicago with ease and excitement. I knew the upcoming summer would be spent very well. It was my first solo vacation and I was ready. My mom’s friends scooped me up at the airport when I arrived and we drove together in their enormous white van for four hours along roads of poppies, grasses, and ro ad merchants until we finally reached our destination. Arriving at the curb of the street I once lived on, my body, exhausted from the trip, leaped into sheer contentment and at once, I felt I was at a comfortable place. Realizing that not much had changed since the last time I found myself there, I was reminded of the longevity of life; unlike the scenery of Chicago, which transformed nearly every month, there was a comforting aura of permanence. I spent the next several weeks exploring niches of Olsztyn I had only heard about when I was still too young to see them firsthand. Back in Chicago, I yearned for an atmosphere so gentle and subtle. The hills, endless foliage, and modestly beautiful architecture brought my spirits up every time I went outside. Though I forced myself to lock both front doors tight once night fell, because drunks often wandered the hallways of the brightly painted apartment building, I became braver than ever before, knowing the splendor outside my windows. At last, I felt independence poking out of me. Many teenagers recall summer vacations with words such as â€Å"awesome† and â€Å"amazing,† conversing endlessly on the subject of how much they saw and did. I, however, experienced a summer of tranquility, characterized by the bittersweet loneliness of growing up and real-life struggles that urged me to learn what it means to be satisfied with being alive. I brought back to Chicago the liveliness of heart and indestructibility of spirit through which I have found my own personal freedom.