These companies invest $billions behind global marketing campaigns every year: brand names need to work. Qualitative research would involve both interviews (for example with CEOs) and focus groups (for example with science students or employees). Our experts suggest that the change in bleeding is why it's more difficult to accurately judge when to get on the slab for the final finish. The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. Re-naming and. Due to industrialization enormous by-products are produced and to utilize these by- products is the main challenge faced in India. cement.ca . ABSTRACT:-The environment problems are very common in India due to generation of industrial by-products. To achieve this goal in concrete pavement, various substitutes were found to be replaced with natural aggregates of concrete. Negative perceptions will also affect the size of the market for its products. Mobile secondary crushing … PDF | On Sep 15, 2014, Olusola Idowu and others published Enter title Effect of Improper Curing on Concrete Performance | Find, read and cite all the research you need on ResearchGate 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. It is actually a byproduct of iron production. 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. Variation in coarse aggregate influenced compressive and tensile strengths but … So, he says, any surface defects in properly batched and placed exterior concrete are caused by the particle size of the concrete ingredients. 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). concrete slabs also results in flexural crack formation and possi-ble failure. None of the associations of this word in the public consciousness is positive. 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. Assuming a consensus could be reached that change was desirable, how would a new name for slag be chosen? 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. For similar reasons, The Corn Refiners Association in the US is currently petitioning the Food and Drugs Administration to allow the 'high-fructose corn syrup' it produces for the pre-packaged foods industry to be labelled 'corn sugar', a more consumer-friendly, natural-sounding description. The only potential problem with steel slag aggregate is its expansive characteristics and undesirable reactions between slag and components of concrete. Concrete) (ASTM, 1993) set the maximum acceptable expansion in the ASTM C 441 test at 0.02%. 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). The use of slag cement with a Type I portland cement can provide equivalence to a Type II … 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. It is the waste product of copper. may result in aesthetic, functional, or structural problems. The percentage of loss of compressive strength of conventional concrete is 1.76% and percentage of loss in weight by 2.58% when compared … A typical combination is 50% GGBS with 50% Portland cement, but percentages of GGBS [4] anywhere between 20 and 80 % are commonly used. While GGBF slag particles may be similar in size to cement particles, they have a specific gravity of about 2.85 to 2.9, compared with portland cement (around 3.15). cement.ca. Companies give much thought to the names of brands that they own. 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. Taking these factors into account, a small number of names were generated that could be used for different product streams - and different uses. Copper slag can be used in many applications such as concrete, landfills, Ballasts, bituminous pavements, tiles etc. © 2020 Pro Global Media Ltd. All rights reserved. "Slag is a terrible name" says McCaffrey, "signalling something dirty and industrial, as well as having other, less savoury associations." Negative associations can have significant consequences. Studies show that as surface area increases, bleeding decreases. Whole industries are also repositioning themselves. 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. The scaling resistance of all grade 120 slag cement concrete was within acceptable limits. He says there's a common misunderstanding on this issue. Use of SCC overcomes the problem of concrete placement in heavily reinforced sections and it helps to shorten construction period. 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. However, that would require a much longer discussion which would really only be of interest to a concrete technologist who would need to know what the concrete being made with the cement is being used for and what properties will be required of the cement. For these reasons, it is always wise to research potential names for new brands or new names for an existing one. How to Solve Common Concrete Problems in Construction:Sep . Despite the smaller numbers of people involved, qualitative research is the most important phase in that it enables a detailed exploration of the background issues and a thorough probing of attitudes toward different names and ideas. 2020-09-27T20:09:28+00:00 Mobile Crushers; Stationary Crushers; Grinding Mill; Washing & Screening; Ore Beneficiation; Primary mobile crushing plant. Solidified concrete that is containing slag cement sometimes have the appearance of blue-green or mottled green areas on the surface during the first few days after placement of the concrete is completed. 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. When the iron is processed using a blast furnace, slag and iron both collect at the bottom of the furnace.The molten slag must first be separated from the molten iron. Steel slag was used in conventional concrete to improve its mechanical, physical, and chemical properties. Again, the hope is that a more positive image will boost industry sales. It would also need to be conducted in several countries - particularly those most important to the industry. 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). A good source of information on this question is ACI 233, "Ground Granulated Blast Furnace Slag As a Cementitious Constituent in Concrete." Variations in portland cement source caused changes in strength and scaling resistance properties. EXAMPLES OF CONCRETE STRUCTURES MADE WITH BLAST FURNACE SLAG CEMENT 2.1 Noordersluis IJmuiden The first project in The Netherlands in which blast furnace slag … Changing the name of a commodity or repositioning a whole industry is not without precedent. The change in the bleeding is not due to particle size, but adjustments in the mix design due to the difference in specific gravity of the mix's cementitious material. 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. 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. Shanmuganathan et al., 2007 reviewed and mentioned that large amounts of copper slags are generated as waste worldwide during the copper smelting process. With CO2 emissions, Global warming and the remorseless pressure that humanity is placing on Planet Earth never far from newspaper front pages and high on the political agenda, the slag industry has never had a better moment to leave behind its past and re-position itself for a better future. Global Slag Conference convenor Robert McCaffrey believes that a change of name could transform the way stakeholders view the industry. A finisher used to working with a 100% portland cement mix must be warned that a mix containing GGBF slag may require a slightly longer set time and that there will be a little less bleeding. 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. They didn't waste any time making the change. Does this matter? Stainless steel slag is the waste industrial by product from stainless steel production. 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. The safe disposal of this waste is a lack, costly and causes environmental pollution. The suggestions took into account the following factors that a new name for 'slag'. Use proper subgrade preparation, including uniform support and proper subbase material at adequate moisture content. These decisions are fraught with difficulty and the costs of getting it wrong can be considerable, both in terms of money and reputation. Probably not. The wrong choice can invite lawsuits (Apple Corps vs. Apple Computers), general derision (Ford's Pinto model was always going to have a tough time in Brazil, a Portuguese-speaking country, where pinto is a slang word meaning penis) or a consumer backlash (The Royal Mail in the UK provoked a public outcry when it ditched its heritage in favour of the contrived 'Consignia' name. Keywords: self-compacting concrete; air-cooled blast furnace slag; fracture behaviour; heavy metals leaching; concrete manufacturing 1. Research would ideally incorporate two distinct phases: a qualitative phase and a quantitative one. Many adjust the yield by reducing the fine aggregate (sand). 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'. The greater the percentage of GGBS, the greater will be the effect on concrete properties. Meanwhile, the high replacement rate in slag can result in a weak binder interface between the cement and fly ash. Remember: there is molten slag and slag products. 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. 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. Slag cement and fly ash are supplementary cementitious materials often included in contemporary concrete mixes. 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. Cracking in concrete can be reduced significantly or eliminated by observing the following practices: 1. In our area, people are discussing the benefits or disadvantages of finishing exterior concrete containing ground granulated blast furnace (GGBF) slag. cement.ca. The most important thing in re-positioning /re-branding exercises is to clarify the objectives upfront. Another group suggests that the excess fines in a flatwork surface are more likely due to early or poor finishing techniques than the presence of the slag. cement.ca. The achieved results indicate that the hydraulicity of the cupola slag is incomparable with the hydraulicity of the blast-furnace slag; this may be associated with the problems that arise when the slag of this type is used in the building industry. 2. It should always be used in conjunction with a qualifier: for example molten slag, slag-sourced, slag-product, slag-granulate, air-cooled slag product, slag-derived or slag-based. What a difference one word can make! In this study steel slag aggregate processed by several aging process was comparatively satisfied with fundamental properties as concrete aggregate, which are specific gravity, absorption, unit weight, percentage of solids and abrasion value etc. It provides great opportunity to utilize it as an alternative to normally available aggregates (coarse and Fine) and cement. At a basic level, it can be argued that it does not. 1. Many of the 20th Century's most famous performers were not born with the names we know them by. 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