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Waste concrete accounts for a substantial fraction of construction waste, and the recycling of waste concrete as concrete aggregate for construction is an important chall [...]
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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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Ground Granulated Slag, from Blast furnace has been in use in Concrete as partial replacement of cement since a century. Benefits of this hydraulic material are well know [...]
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This study investigates performance of slag as an alternative cementitious binder against ordinary Portland cement (OPC), fly ash (FA) and palm oil fuel ash (POFA). To ac [...]
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Though discussed a lot, the interfacial transition zone (ITZ), the linking phase between aggregate and bulk paste, still undertakes ambiguity on its knowledge. In this pa [...]
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In this paper, effect of cement type and expansive additive content on resistance to both drying shrinkage cracking and thermal cracking of concrete using fly ash and gro [...]
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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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Roman cements were key materials for the economic and easy manufacture of render (stucco) for the exterior of buildings during the nineteenth and early twentieth century. [...]
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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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For high durability and strength, decreasing of the water to binder ratio of cement is needed by using of fly ash, blast furnace slag as mineral admixture. And it is poin [...]
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Lime-pozzolan mortars are often used for the restoration of historical buildings. Several studies have been developed in regards to the use of waste in construction mater [...]
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For high fluidity concrete beams with medium-quality recycled coarse aggregate and melt-solidified slag aggregate, we investigated the fresh concrete properties and the b [...]
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Lime–based mortars of adequate workability are used for repairing coating mortars on old masonry in historical buildings. The analysis of a great number of old plasters [...]
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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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Porous ceramic aggregate produced from roof tile waste was used as an internal curing agent. The aim of this study is to investigate the effect of the porous ceramic aggr [...]
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Self-compacting concretes are special concretes, highly flowable, which can flow into place under their own weight and compacted without any external vibration. In additi [...]
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The deterioration of concrete by sulfuric acid attack in sewage environments has become a serious problem. In this study, it was shown that the resistance to sulfuric aci [...]
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NOBATA, Kenji
The manufacture of cement entails impacts in the form of resource and energy use along with GHG generation. BF slag lends itself to reducing such impacts. Studies have in [...]
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Currently, the precast industry represents 20% of concrete production around the world and the use of steam curing to accelerate hydration has been adopted as one of the [...]
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Iron-welding slag is one of industrial wastes discharged in large quantities from shipyards. This study aimed at proposing an idea of utilizing the iron-welding slag as a [...]
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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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Properties of concrete using newly developed high slag cement which includes over 60% ground granulated blast-furnace slag was studied. It is known that conventional high [...]
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Fracture energy tests were carried out on Portland blast furnace cement-type B (BB) concrete where as an internal curing material, partial replacement of course aggregate [...]
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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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This study investigated the influence of the molten slag as fine aggregates of concrete on the structural performance of RC beams. In the loading test, the mechanical res [...]
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Properties of a molten slag and concrete containing the molten slag as a fine aggregate were investigated, which was emitted in Kure City in Hiroshima Prefecture. Water t [...]
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