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  • Properties of mineral
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    nbsp 0183 32 Content of concrete aggregate from recycling in MCE mixtures at the 45 level permits obtaining an optimal grading of a mineral mixture with the maximum strength of MCE mixtures Content of concrete aggregate from recycling below 20 is unfounded economically whereas increasing the dosing rates of recycled concrete aggregate above 60 may lead to a decrease in the strength of...

  • The toxicity and valorization options of cigarette butts
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    nbsp 0183 32 A group of researchers in Brazil developed a technology to produce cellulose pulp by recycling CBs Teixeira et al 2017 The main idea of the technology is based on separating all the cellulose content in the CB by hydrolyzing the cellulose acetate in the presence of strong alkali Fig 11...

  • Reuse of fines from ready
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    nbsp 0183 32 In Brazil 1 million tons of ready-mix concrete waste were generated in 2009 Kou et al 2012 which corresponded to around 2 5 wt of construction and demolition waste CDW estimated by the Brazilian Association of Public Cleaning Companies ABRELPE...

  • Climate Solutions
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    nbsp 0183 32 We re developing new forms of concrete that are more durable and use less CO2 in the production process - paving the way for more sustainable infrastructure in our cities...

  • Performance of self
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    nbsp 0183 32 Deterioration of concrete will be higher if concrete is more permeable The outcomes of the water permeability test in terms of water penetration depth for control and granite modified SCC samples at the curing periods of 28 days are shown in Fig 20...

  • Scottish Startup Creates Breakthrough Brick Made From
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    nbsp 0183 32 Originally from Brazil Medero comes from a civil engineering background and specializes in geomaterials More than 10 years ago plasterboard concrete gravel and sand to form a viable...

  • Recycling bin
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    nbsp 0183 32 A recycling bin or recycle bin is a container used to hold recyclables before they are taken to recycling centers Recycling bins exist in various sizes for use inside and outside homes offices and large public facilities Separate containers are often provided for paper tin or aluminum cans and glass or plastic bottles or may be commingled...

  • Demolished concretes recycling by the use of pneumatic jigs
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    nbsp 0183 32 This article presents studies of demolished concretes recycling by the use of a pneumatic jig All jigging tests were carried out with three different concretes produced in three strength classes C16/20 ordinary concrete C50/60 high strength concrete and C70/85 very high strength concrete...

  • United G20 must pave the way for robust post
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    nbsp 0183 32 As a result Argentina Brazil and Mexico are much more focused on these and other domestic challenges and less so on the G20 summit But all three nations will want to use the G20 as a forum to attract future investment especially from China whose purchase of raw materials has underpinned the finances of many Latin American countries...

  • Braskem Delta Gains Momentum Towards 2020 Launch as
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    nbsp 0183 32 19 000 cubic yards of concrete 6 100 tons of steel 300 miles of electrical and wiring cables 31 With 41 industrial units in Brazil United States Mexico and Germany net revenue of R 58...

  • How to Melt Aluminum Cans at Home
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    nbsp 0183 32 Recycling uses about 5 of the energy needed to make the metal from its raw ore About 36 of aluminum in the United States comes from recycled metal Brazil leads the world in aluminum recycling The country recycles 98 2 of its aluminum cans...

  • ANDRITZ Brasil Ltda successfully completes largest
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    nbsp 0183 32 This is the largest concreting volume in Klabin s Puma II project and required approximately 750 m 3 of concrete which corresponds approximately to the concrete volume needed for a 14-storey building While this work was performed in two stages in the first Puma...

  • Second waves social distancing and the Wellcome
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    nbsp 0183 32 Read the original article in full on Wellcome Open Research Second waves social distancing and the spread of COVID-19 across America Grant information This work was supported by Wellcome through core funding to the Wellcome Centre for Human Neuroimaging UCL Queen Square Institute of Neurology 203147 and a Principle Research Fellowship grant to KJF 088130...

  • UPTC and Frumecar create a new professorship for Industry
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    nbsp 0183 32 It consists of five applications that work in each of the production and business management environments of the concrete industry Vision Tracker Care Manager and Planner According to Mariano Carrillo CEO of the company Frumecar Cloud is the first Industry 4 0 solution that exists on a global level for the concrete industry placing us far ahead of other manufacturers...

  • Concrete recycling
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    nbsp 0183 32 Concrete recycling is the use of rubble from demolished concrete structures Recycling is cheaper and more ecological than trucking rubble to a landfill 1 Crushed rubble can be used for road gravel revetments retaining walls landscaping gravel or raw material for new concrete Large pieces can be used as bricks or slabs or incorporated...

  • Implementation of the use of hydration stabilizer
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    nbsp 0183 32 According to Vieira et al the amount of concrete residue generated in a ready-mixed concrete RMC plant in Brazil corresponds to approximately 3 of the total volume of concrete produced Although this percentage is quite small considering that approximately 25 billion tons of concrete are produced each year worldwide the concrete waste generated could be approximately...

  • Recycled Construction Aggregates Market to Surpass 6 2
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    nbsp 0183 32 SEATTLE-- BUSINESS WIRE --The global recycled construction aggregates market was pegged at around 3 9 Million Tons in terms of revenue in 2019 and is expected to exhibit a CAGR of 6 0 during the...

  • Bussbatterier
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    nbsp 0183 32 How To Form Pour And Stamp A Concrete Patio Slab - Duration 27 12 Mike Day Everything About Concrete Recommended for you 27...

  • WEBINAR Ready
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    nbsp 0183 32 Ready-mix concrete has an extremely short product lifetime and time windows sometimes need to be as narrow as 10 minutes With the short product lifespan a certain rhythm and flexibility in deliveries is required which can also take unforeseen circumstances into consideration...

  • The Green Factory of the Future BCG
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    nbsp 0183 32 The concrete actions we discuss below can bolster efforts to achieve the target As of 2019 global GHG emissions from fuel combustion totaled approximately 33 gigatons of CO 2 e Gt CO 2 e To be on a path to achieve the 1 5 176 C target net emissions would need to fall to 18 Gt CO 2 e by 2030...

  • Wood as a Sustainable Building Material
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    nbsp 0183 32 Wood is the most widely used building material in the United States because of its efficiency durable and usefulness One of the greatest attributes of wood is that it is a...

  • OECD iLibrary Low and zero emissions in the steel and
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    nbsp 0183 32 Then it addresses the role of material efficiency and enhanced recycling in greening these industries and reviews the emerging and near commercial low- and zero- emissions production technologies Finally the policy packages that could contribute to trigger demand and supply decarbonisation of steel and cement are discussed...

  • Embodied carbon of concrete in buildings Part 1 analysis
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    nbsp 0183 32 Article Embodied carbon of concrete in buildings Part 1 analysis of published EPD Embodied impacts have historically been considered to be insignificant compared with operational impacts and regulation has therefore tended to focus on the latter Szalay 2007...

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