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Showing 1 to 20 of 20 for “"Self-compacting concrete"”.
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Self-Compacting Concrete for Prestressed Bridge Girders
Self-consolidating concrete (SCC), which is different from conventional concrete especially in its fresh state, is a highly workable concrete that flows through congested reinforcement under its own weight alone, filling the formwork without segregation of its constituent materials with a void-free …
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Drying shrinkage of self-compacting concrete incorporating fly ash
… drying shrinkage magnitude and behaviour of self-compacting concrete (SCC) and compare with normal concrete (NC). For all SCCs mixes, Portland cement was replaced with 0-60% of fly ash (FA), fine and coarse aggregates were kept constant at 890 kg/m3 and 780 kg/m3, respectively. Two different …
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Behaviour of continuously supported self-compacting concrete deep beams
… beams although they were proposed for normal concrete (NC). The proposed three dimensional FE model accurately predicted the failure modes, the load capacity and the load-deflection response of the beams tested.
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Behaviour of elliptical tube columns filled with self-compacting concrete
… behaviour of elliptical tube columns filled with self-compacting concrete (SCC). In total, ten specimens, including two empty columns, were tested to failure. The main parameters investigated were the length and the sections of the columns, and the concrete compressive strength. Artificial Neural …
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Engineering properties of ring shaped polytheylene terephthalate (RPET) fiber self-compacting concrete
… solve this problem, PET bottles are recycled in concrete. Previous studies have mostly used PET with straight or irregularly shaped fibers. It has been shown that PET has a weak interfacial bond with cement paste in the pullout load because of the lamellar shape of fibers. Therefore, ringshaped …
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Self compacting concrete containing polypropylene fibre and its behaviour as wall panel under cyclic load
Self-compacting concrete, SCC, is a new innovation of high strength concrete which uses less aggregate, able to flow by itself and does not require compaction. These advantages make it the main choice as precast system which could speed up the construction time with less wastage at the construction …
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Performance of self-compacting concrete manufactured with coarse and fine recycled concrete aggregate and slag-based binder
El hormigón autocompactante es un tipo de hormigón caracterizada por su elevada fluidez, lo que permite que pueda ponerse en obra sin ningún tipo de vibrado y con un menor consumo de energía. La sostenibilidad de este material de construcción puede aumentarse mediante el empleo de materiales …
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Performance of self-compacting concrete incorporating palm oil fuel ash and egg shell powder as partial cement replacement
Self-compacting concrete (SCC), is an innovative concrete that uses less aggregates, but high content of cement compared to normal concrete. It is able to flow by itself and does not require compaction. Therefore, raw materials and natural resources are required in large quantities for SCC …
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Structural performance of precast self-compacting concrete beam consisiting banana skin powder and coir fibre under flexural load
… waste as a construction material like concrete. The agricultural waste widely used as supplementary cementing material, filler and fibre reinforcement. In this research Banana Skin Powder (BSP) and Coir Fibre (CF) utilized as partially cementing material and filler respectively, to …
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High-performance and self-compacting concrete in house building. Field tests and theoretical studies of possibilities and difficulties
Cast in-situ concrete is the most frequently used materials technology worldwide within production of structural frames in multi-storey residential buildings. In Sweden, this technology dominates the market but is challenged by other competitive production methods. The criticism concerns issues as …
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Influencia de la dosificación y empleo de diferentes tipos de cemento y adiciones en las propiedades mecánicas del hormigón autocompactante
… the behavior of the mechanical properties of self compacting concrete, both in a more general form and in terms of the cement type and the type of additions used in the mixtures. In addition, the applicability of the estimating models used to calculate the mechanical properties of conventional …
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Dosificación, propiedades y durabilidad en hormigón autocompactante para edificación
… existente para cementos convencionales. ABSTRACT Self-compacting concrete is defined as concrete that by the action of its own weight is able to flow, pass through the reinforcement, and correctly fill the formwork. The advantage of this concrete is that manual compaction is not necessary, and …
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The effects of Visual Stability Index (VSI) on fresh and hardened properties of Self Consolidating Concrete (SCC) under accelerated curing condition
Self-consolidating concrete, also known as self-compacting concrete (SCC), is a highly flowable concrete that spreads into place and fills formwork without the need for mechanical vibration. SCC reduces the time and labor cost needed for concrete placement. This study is part of the proposed …
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Material properties related to fire spalling of concrete
… research, the fundamentals of fire spalling of concrete are not yet fully understood. Many different theories exist, each trying to describe the coupling between different phenomenon leading to fire spalling. Some of these phenomenon have been investigated and are presented in this thesis. The …
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Increasing the Blast Resistance of Concrete Masonry Walls Using Fabric Reinforced Cementitious Matrix (FRCM) Composites
… polymer (FRP) composites or the use of concrete overlays in combination with high performance reinforcement. Fabric-reinforced cementitious matrix (FRCM) is a new composite material that overcomes some of the drawbacks of FRP. This composite material consists of applying coatings which …
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Ensayos de información y extracción de probetas testigo en hormigones autocompactantes
… pulse velocity applied to Traditionally Vibrated Concrete have been thoroughly spread and widely accepted. However, there are insufficient studies on its adaptability in new kinds of concrete, especially in Self-Consolidating Concrete. In view of the foregoing, the main aim of the present study is …
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Ultrasonic wave reflection measurements on self-compacting pastes and concretes
… (UWR) to monitor the setting and stiffening of self-compacting pastes and concretes. An additional objective was to interpret the UWR responses of various modified cement pastes. A polymeric buffer with acoustic impedance close to that of cement paste, high impact polystyrene, was chosen to …
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Estudio sobre la aplicabilidad de los modelos de cálculo de la fluencia y retracción al hormigón autocompactable
… que el ACI 209 y el EC-2 son los menos precisos. Self-compacting concrete, SCC, is composed of the same components as conventional vibrated concrete, however, there is a clear difference in the final composition of the mixture. In comparison with conventional concrete, SCC contains a high volume …
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Estudio experimental sobre propiedades mecánicas y de durabilidad de hormigones estructurales autocompactantes con áridos reciclados y su aplicación a la prefabricación
La investigación de la presente tesis doctoral se desarrolla bajo tres pilares fundamentales: la sostenibilidad en el aprovechamiento de los residuos de hormigón para incorporarlos como áridos reciclados, en la elaboración de un hormigón estructural autocompactante y en la aplicación real a una …
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An experimental and simulation framework for the characterization of the structural response of fiber reinforced concrete manufactured with EAFS
La tesis doctoral desarrollada estudia el comportamiento mecánico del hormigón reforzado con fibras (metálicas y sintéticas) mediante experimentación y análisis numéricos. El modelo numérico desarrollado se basa en el método de elementos finitos (FEM) para simular el comportamiento de estructuras …