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JUSTNES, Harald
Production of cement is ranking 3rd in causes of man-made carbon dioxide emissions world-wide. Thus, in order to make concrete more sustainable one may work along one or [...]
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A new technology is presented for transforming returned concrete into a granular material that can be reused as aggregates for concrete. The new method is based on non-to [...]
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Concrete is one of the most commonly used among construction materials. Generally, concrete is produced by using Ordinary Portland Cement (OPC) as binder and it contribut [...]
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Fluid, lime-based grouts for the conservation of historic buildings have been mentioned infrequently in the literature, and with relatively few details of the experimenta [...]
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In Japan, it is expected to use much the recycled aggregates for concrete because concrete wastes have been increasing but natural aggregate resources have been decreasin [...]
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In order to promote the use of recycled aggregate and take measure to the heat island effect, porous pervious concrete is the useful materials. We evaluated the cooling e [...]
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Self compacting concrete (SCC) is a very fluid concrete that is characterized by its high volume of paste, and the use of superplasticizer. The effects of recycled aggreg [...]
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The Public Works Research Institute has initiated a collaborative research project with the goal of developing a guideline for effective use of supplementary cementing ma [...]
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Key green policies of Korea, such as Low Carbon Green Growth, Target Management, and Emission Trading, are first introduced. Recent efforts to systematically develop envi [...]
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The main point of this research was to determine the practical and theoretical level of possibilities of the recycling gypsum binder and to characterize the recycling gyp [...]
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THE FEASIBILITY OF USING CEM X, A TYPE OF CEMENT, FORMED BY ORDINARY PORTLAND CEMENT (OPC) PLUS TWO DIFFERENT MINERAL ADDITIONS WAS STUDIED AS AN ALTERNATIVE TO CONVENTIO [...]
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An experimental program has been carried out on recycled concrete with the aim of establishing the relation between the static modulus of elasticity Es and the dynamic on [...]
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This study evaluates the size effect in the shear performance of reinforce concrete beams with recycled coarse aggregates. The test variables include the type of aggregat [...]
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Reducing energy use in the course of production of aggregate as building materials and minimizing the resulting environmental load during building’s life cycle require [...]
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Argentina has an heritage of masonry construction of walls and floors of both collective and individual homes. These pieces, called bricks, ceramic blocks, ceramic mezzan [...]
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This paper focuses on the design and reproduction of crushed brick/lime mortars for the repair of historic masonry. The research presented involves an analytical study of [...]
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The paper describes the method of acoustical emissions measurement and evaluation on one of the typical machinery equipment - on gearboxes. Acoustical measurements were [...]
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In order to reduce the amount of CO2 gas in cement industry, the use of blended cement is valid. Share of blended cement in Japan, has not changed over last 10 years. One [...]
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In order to reduce environmental loading, it is important to propose the way for the usage of large particles of Fly Ash. In this research, relationship between packing f [...]
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Low calcium fly ash-based geopolymer (LCFG) concrete binder, which results from the reaction of a source material rich in silica & alumina (low calcium fly ash) and a [...]
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Due to incentives to reduce greenhouse gas emissions during clinker production more and more of the clinker fraction of cement is being replaced with supplementary cement [...]
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Veselý, S.
At the present time, the European Union Commission has been discussing new emission levels with the individual member countries. NOx = 50 mgm-3 and CO = 50 mgm-3 levels c [...]
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By calcination and dehydration of paper sludge, which is a by-product of recycled paper waste, a non toxic mineral with a highly pozzolanic activity is formed. Besides th [...]
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A new ecological concrete has been developed which utilizes CO2 emitted from a power plant and which can achieve CO2 emission levels below zero. This ecological concrete [...]
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Compared with the study on high-quality of recycled coarse aggregate, the study on recycling of recycled fine aggregate still has been limited. This study has quantitativ [...]
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Use of ultra high strength concrete (UHSC) is effective in improving durability of concrete structures which should lead to establishment of sustainable society. However, [...]
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Fiber Reinforced Concrete (FRC) can improve not only mechanical properties but also durability due to reduced crack width by fiber bridging effect. From the view point of [...]
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An entire concrete waste reuse model for producing recycled aggregate class H concrete was established with the objective of recycling concrete waste generated during ant [...]
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When we approach the subject of construction and rehabilitation of buildings we necessarily must think about external wall coatings as they are the elements more exposed [...]
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The shear-friction behavior of the recycled aggregate concrete (RAC) compared to the natural aggregate concrete (NAC) is investigated. Two out of six concrete specimens w [...]
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The major environmental impact of concrete is caused by CO2-emissions during the cement production. Great potential for the reduction of the global warming potential and [...]
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The construction sector is among the most resource- and energy-consuming industrial activities. Particularly, according to recent surveys, the emissions of greenhouse gas [...]
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Natural hydraulic lime specifications changed with the new version of standard EN 459-1: 2010 and a new Portuguese NHL3.5 appeared in the market. The characteristics of m [...]
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Natural hydraulic lime specifications changed with the new version of standard EN 459-1: 2010 and a new Portuguese NHL3.5 appeared in the market. The characteristics of m [...]
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Application of the recycled aggregate is a promising technology for resource saving and low environmental impacts, which is more effectively performed when recycled fine [...]
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Current loads from cement production make material responsible for 5-7% of CO2 emissions with more than 2x109 ton of CO2 emitted. Considering available industrial product [...]
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High quality recycling aggregate nearly same with virgin aggregate has been passionately developing in the recent years due to the establishment of the low emission socie [...]
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