This paper describes the work carried out in laboratory to produce concrete with good properties using oxidizing electric arc furnace (EAF) slag as fine and coarse aggregate. To do this, obtained steelmaking process must be crushed stabilized. First, a suitable mortar made tested. Next, several mixes of are designed order analyze their strength properties. From results obtained, it can deduced that this produced for use wide range applications civil engineering construction. Studies tests...

The high fine-aggregate content of Self-Compacting Concrete (SCC) means that its deformational behavior differs from vibrated concrete. SCC performance is further altered when industrial by-products are used as raw materials in those fractions. In this paper, the aim to analyze and model under compression bending containing 100% coarse 0%, 50%, fine Recycled Aggregate (RA), limestone RA green aggregate powders sized 0/0.5 mm, Ground Granulated Blast-furnace Slag (GGBS) cement. After fresh...

Estimating the shrinkage of structural concrete is essential to calculate, at design stage, stresses that a structure may experience due this phenomenon. Nevertheless, changes in composition, as well use wastes raw materials, alter behaviour and render invalid shrinkage-prediction models from standards. This paper shows procedure estimate recycled aggregate made with alternative binders. based on modifying estimated through Eurocode 2 or ACI 209.2R by multiplying it partial correction...

Many of the first wind-turbine installations are reaching end their useful life, so blades have to be replaced. Inexpensive, sustainable, and straightforward recycling solutions therefore needed. The conversion turbine into raw materials for concrete is proposed in this paper, through a novel process entailing non-selective cutting, crushing, sieving blade walls, without component separation. material, Raw-Crushed Wind-Turbine Blade (RCWTB), consists fiberglass-composite fibers,...

Marine environments are extremely challenging for the long-term durability of concrete. Prior validation concrete is therefore a prerequisite to guarantee its adequate performance under marine environmental conditions. In this study, Self-Compacting Concrete (SCC) with variable contents coarse Recycled Precast-Concrete Aggregate (RPCA) and two different cement assessed in terms capillary water absorption, natural accelerated carbonation, resistance SO2 attack, moist/dry drinking water,...

Ladle furnace reducing slag is a common byproduct in steelmaking of carbon and low alloy steels. After air cooling weathering over several days, this material completely ground into fine white particles. Physical, chemical, crystalline characterizations were performed order to verify possibilities for its direct application as construction material. Two ways are proposed the immediate use ladle slag: masonry mortars paving mixes rural roads with levels traffic.

Electric Arc Furnace Slag (EAFS) can be efficiently reused as aggregate in the production of high-volume batches hydraulic concrete mixes that show interesting properties both fresh and hardened state. Mixtures containing EAFS proportions nearly 50% by volume are prepared for use pumpable self-compacting with consistency classes S4 SF2, respectively. Characterization mixtures is presented, examining practical aspects such thixotropy, segregation state (under 6%), mechanical microstructural...

The high cement content of high-performance concrete (HPC) results in improved strength, but also large shrinkage. substitution natural aggregates (NA) with recycled (RA) notably affects these properties conventional concrete. This study intends to analyse the effect RA and their maturity (time elapsed between casting crushing parent from which are obtained) on HPC. To this end, five mixes were manufactured 0%, 25%, 100% coarse fine different maturities, 7 days (early-age RA) 6 months...

Plastic strain behavior in the transversal direction to axis of loading has often been underestimated concrete design and its strength performance. However, as this article demonstrates, it is fundamental define viability using a certain composition real applications. In study, 15 Self-Compacting Concrete (SCC) mixtures produced with Recycled Aggregate (RCA) Ground Granulated Blast Furnace Slag (GGBFS) were subjected monotonic-load test 5-cycle loading/unloading increasing maximum loads....

The environmental conditions to which a concrete may be exposed will condition its real range of use. Thus, behavior must, at all times, verified under wide variety conditions, in order ensure applicability. In this study, the strength development and durability fiber-reinforced self-compacting is analyzed. This particular incorporates 100% coarse (4/12 mm) fine (0/4 Electric Arc Furnace Slag (EAFS) as aggregate, well limestone fines aggregate powder (0/1.18 mm). Furthermore, Ground...

Numerous test results at laboratory scale confirm the utility of Recycled Aggregate (RA) for development concrete that demonstrates durability and adequate in-fresh mechanical behavior. However, feasibility evaluations use RA in real industrial applications are necessary, before any large-scale application these products can begin. In this research, producing precast-concrete components containing large amounts coarse a plant is analyzed. Two Self-Compacting Concretes (SCC) were produced...

Raw-crushed wind-turbine blade (RCWTB), a waste from the recycling of blades, is used as raw material in concrete this research. It contains not only fiberglass-composite fibers that bridge cementitious matrix but also polyurethane and balsa-wood particles. Therefore, containing RCWTB can be notably affected by moisture temperature fluctuations exposure to high temperatures. In research, performance five mixes with 0.0%, 1.5%, 3.0%, 4.5%, 6.0% RCWTB, respectively, studied under moist/dry,...

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