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Researching alternative names does not guarantee success, but it does improve the odds, which is why large FMCG companies invest so much on such research. One group claims that since slag is finer than portland cement, a finisher brings more fines to the surface after straight edge and floating and thus creates a less durable surface. Slag cement, often called ground granulated blast-furnace slag (GGBFS), is one of the most consistent cementitious materials used in concrete. The safe disposal of this waste is a lack, costly and causes environmental pollution. Due to industrialization enormous by-products are produced and to utilize these by- products is the main challenge faced in India. Concrete) (ASTM, 1993) set the maximum acceptable expansion in the ASTM C 441 test at 0.02%. To achieve this goal in concrete pavement, various substitutes were found to be replaced with natural aggregates of concrete. It might also be desirable, for example, for subtle variations on a new name to communicate different product streams. cement.ca. copper slag concrete is yet to get momentum in our country. The only potential problem with steel slag aggregate is its expansive characteristics and undesirable reactions between slag and components of concrete. What a difference one word can make! Mobile secondary crushing … cement.ca. Probably not. In our area, people are discussing the benefits or disadvantages of finishing exterior concrete containing ground granulated blast furnace (GGBF) slag. The greater the percentage of GGBS, the greater will be the effect on concrete properties. Who is right? Concrete can deteriorate for a variety of reasons, and concrete damage is often the result of a combination of factors. The word slag orginates from the medieval German word 'slagge', meaning 'to strike, with reference to the fragments produced by hammering or forging metal' (Chambers Dictionary of Etymology). Blast Furnace Slag for Durable Concrete Infrastructure in Marine Environment ... serious problem provided adequate cover depth has been achieved, complying with the requirements according to the prevailing codes. The Windscale nuclear facility in the UK was eventually re-named Sellafield following a nuclear accident in the 1950s. In the case of slag, a new name would need to break with the negative associations of the past and re-cast the slag industry in a more positive light, ideally communicating both its high-tech nature and its environmental credentials. The one critical factor to be understood was that the term 'slag' would still be used in the industry, but solely as a term for a molten mass. Copper slag is used in the concrete as one of the alternative materials. With the perjorative connotations of the word 'slag' in mind, delegates at the 6th Global Slag Conference, held in November 2010 in Sydney, were asked to propose alternative names for slag. The producers of the various types of cement should be consulted for the … Les cendres volantes et le laitier de haut fourneau peuvent aussi améliorer la malléabilité du mélange de béton et atténuer les éventuels problèmes de réaction alcali-silice. Whole industries are also repositioning themselves. There are two main problems with pouring concrete in cold winter weather: ... slag can cause the same effect. It is a waste product, a leftover that no-one wants. highest level of scaling resistance. In a word, 'No.' Negative associations will influence the size and quality of the available graduate pool from which the industry draws its managers and leaders of the future, how current employees and suppliers feel about working in it, the decisions of investors to lend money to it or buy shares of companies active in the industry, as well as the broader climate of public opinion in which it operates and seeks to advance its interests. CORROSION OF EMBEDDED METALS Fig. Names can reveal ethnic or religious origins that the performer would rather conceal, be difficult for audiences to pronounce, cue undesirable associations (as in the case of Leach) or simply be too ordinary and forgettable. Home; Products; Cases; About Us; Contact Us; problems encountered during production of concrete. They didn't waste any time making the change. "Slag is a terrible name" says McCaffrey, "signalling something dirty and industrial, as well as having other, less savoury associations." Marathon to Snickers, Opal Fruit to Starburst), to exploit the significant economies of scale available in marketing communications. Would the epitome of all-American masculinity, John Wayne, have succeeded as the metrosexually-named Marion Morrison? Use proper subgrade preparation, including uniform support and proper subbase material at adequate moisture content. Air-cured concrete had higher scaling resistance than concrete cured with commercial curing compounds. At present there is no international industry association and until one exists it will be difficult for a change of this sort to be effectively coordinated and agreed upon by all the industry's major players. Another group suggests that the excess fines in a flatwork surface are more likely due … cement.ca . cement.ca. It provides great opportunity to utilize it as an alternative to normally available aggregates (coarse and Fine) and cement. cement.ca . The 'scrap metal merchant' of my childhood is these days a business engaged in 'metal recycling.' SCIC #11, Slag Cement and Fly Ash, compares the two materials, explaining that while chemical similarities exist between them, they exert different influences in concrete applications. Les cendres volantes et le laitier de haut fourneau peuvent aussi améliorer la malléabilité du mélange de béton et atténuer les éventuels problèmes de réaction alcali-silice. Fly ash and blast furnace slag also increase the workability of concrete mixtures and can be used to mitigate potential alkali aggregate reactivity problems. An air-cooled blast furnace slag did not present problems of heavy metals leaching. 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 consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete … The adjusted mix now contains ingredients with an increased amount of total surface area. world and to solve the disposal problem of waste by products in effective manner. Re-naming and. Most concrete contains cement, some other types of cementitious material such as fly ash or slag cement, coarse aggregates such as gravel or limestone, and fine aggregates such as sand. The following summary discusses potential causes of concrete deterioration and the factors that influence them. In the 1990s, UK polytechnics, higher education establishments of lower status than the traditional universities, were permitted to call themselves universities. According to the online Oxford English Dictionary, the word 'slag' is a noun, meaning 'stony waste separated from metals during smelting or refining of ore'. Independent operating combined mobile crushing station . In our area, people are discussing the benefits or disadvantages of finishing exterior concrete containing ground granulated blast furnace (GGBF) slag. Cracking in concrete can be reduced significantly or eliminated by observing the following practices: 1. Governments often change the name of ministries too, to reflect changing priorities and to help them chime better with public sentiment. Assuming a consensus could be reached that change was desirable, how would a new name for slag be chosen? Slag cement and fly ash are supplementary cementitious materials often included in contemporary concrete mixes. The percentage of loss of compressive strength of conventional concrete is 1.76% and percentage of loss in weight by 2.58% when compared … Considering both the mechanical performance and the volume stability of aggregates, the mix proportion of S60F30 was the best formulation for the preparation of carbonated steel slag aggregates … Variation in coarse aggregate influenced compressive and tensile strengths but … Names need to avoid confusion with existing companies and brands (and lawsuits), avoid negative connotations, ideally communicate something positive about the product or service that they are selling and, importantly, be memorable. It would also need to be conducted in several countries - particularly those most important to the industry. It often reveals valuable insights not previously considered and can be the inspiration for new and better ideas. As David Hume, that great Enlightenment philosopher and famous empiricist put it, 'Reason is...slave of the passions and can never pretend to any other office than to serve and obey them.'. Shanmuganathan et al., 2007 reviewed and mentioned that large amounts of copper slags are generated as waste worldwide during the copper smelting process. GGBFS should rather be ground blast furnace slag-granulate (GBFSG). It would need to work internationally, be short, memorable and ownable. Thus the UK Ministry for Agriculture, Food & Fisheries (something that sounds like it is concerned with the exploitation of the land and the sea), became the Department for Environment, Food and Rural Affairs (something whose implied mission is more benign). Much time and money is invested in creating and researching potential names for new brands, exploring the pros and cons of an existing brand name where it is to be rolled out to a new geography, or working out how to migrate a brand name owned in one territory to an existing one owned elsewhere (e.g. One group claims that since slag is finer than portland cement, a finisher brings more fines to the surface after straight edge and floating and thus creates a less durable surface. As soon as molten 'slag' is modified in any way (including its composition, mineralogy and cooling history), it would cease to be 'slag' and would become a product (after all, any intervention costs something). cement.ca. cement.ca. Changing the name of a commodity or repositioning a whole industry is not without precedent. So, from molten slag, you might create the following slag-sourced products: Converter (air-cooled) - Converter Metarock. However, the word also has other meanings in the popular vernacular. There are too many vested interests and there is no global slag-industry leadership to change the status quo. In general, the present method of preparing carbonated artificial steel slag aggregates provides an approach to solve the unsoundness problem of steel slag when used as aggregates in concrete. II. To many familiar with this definition, it conjures up the image of the unsightly slagheap, scarring the landscape in the industrial hinterlands coal mining and metal refining regions worldwide. Among those is steel slag which is produced as a waste material in the steel industry and has a negative impact on environment when disposed. It was eventually forced into an embarrassing and costly retreat). cement.ca. Companies give much thought to the names of brands that they own. Meanwhile, the high replacement rate in slag can result in a weak binder interface between the cement and fly ash. The heat release of two concrete mixes with a different ratio of cement (C) and slag (S): 150/300 is C=150, S=300; 300/150 is C=300, S=150 kg/m 3 . re-branding is common in government and politics too. In English-speaking countries, 'a slag' is a promiscuous woman, whilst to 'slag someone off' is to criticise them in an abusive and insulting manner. GGBS Concrete GGBS Proportions On its own, ground granulated blast furnace slag (GGBS) hardens very slowly and, for use in concrete, it needs to be activated by combining it with Portland cement. Slag is bi-product of Ferro alloys industries. Once a short-list of options has been drawn up, quantitative research could help provide a final check and determine the 'winner.'. 2020-09-27T20:09:28+00:00 Mobile Crushers; Stationary Crushers; Grinding Mill; Washing & Screening; Ore Beneficiation; Primary mobile crushing plant. Variations in portland cement source caused changes in strength and scaling resistance properties. 1. Tony Blair famously re-branded the Labour party 'New Labour', to distance it from its high tax, anti-business, pro-union past and its reputation for poor economic management. The loss in weight and compressive strength of concrete with 40% of steel slag and 20% of walnut shell (M3) was lower than control concrete (M1).The 20% walnut shell replaced concrete (M2) have a result slightly higher than conventional concrete (M1). Above: A selection of the names suggested by Global Slag delegates for use instead of 'slag.' Negative associations - to which names can contribute - are likely to impact an industry in many ways. 'Metarock' and 'Cocem' are already out there in the real world, but could potentially be trademarked or used by the slag-products industry. Contrary to the assumptions of modern economics, people do not have access to perfect information when they make decisions and nor do they always make rational choices: Investment bubbles are testament to these facts. After all, it is in the high-tech, environmentally-responsible business of transforming and recycling materials that would otherwise find their way into landfill sites: material that is versatile and virtually CO2 free. By using these waste materials in concrete we can control cost of materials used in construction. may result in aesthetic, functional, or structural problems. None of the associations of this word in the public consciousness is positive. Ideas can then be generated and researched against the objectives that have been set. Increasingly they need to work internationally too. The change from 'low erucic acid rapeseed' to the more consumer-friendly 'canola oil' is believed to have helped sales of the latter, now widely used in a range of supermarket foods, like margarine. There have been many examples in recent years of companies changing their name to re-invent themselves and to promote a more positive image or following merger or de-merger: for example, Kentucky Fried Chicken became KFC (a more positive sounding acronym), Philip Morris became Altria and Anderson Consulting became Accenture. Using fly ash in concrete is environmentally beneficial because it reduces the Portland cement (a major contributor of CO2) required in concrete. 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