In-situ production of precast concrete (PC) members is affected by various factors, such as cost, time, quantity, lead-time, number of molds, production cycle, number of cranes, and yard stock area. Particularly, the yard stock area constitutes over 84% of the total required area, considerably larger than the production area. ...Web
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Today, prefabricated concrete elements are used in many construction areas, including in industrial, public, and residential construction; this was confirmed via questionnaire research. In the article, the prospects for precast concrete development are presented, and the factors determining the use of this technology are defined. Based on …Web
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Liu Guiwen et al. proposed a carbon emission calculation model for a precast component production line and conducted a case study with precast concrete wall panels [25]. It can be seen that carbon ...Web
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Precast concrete production lines for hollow core slabs, double walls, sandwich walls, beams, columns, 3D modules. Click: elematicWeb
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1. Introduction. The existence of prefabrication plants and numerous successful construction projects realized with precast concrete elements for all or part of a building structure demonstrate that this technology is effective and economical [].In [], the author contended that by employing industrialized and automated building system methods, the amount of …Web
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The hoisting of prefabricated components (PCs) is a key step during the construction of prefabricated buildings. Aiming at the problems existing in the control of PC hoisting, an innovative hoisting management system framework based on the digital twin (DT) is established in this paper. The system framework comprehensively utilizes the …Web
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Xi Zhang Scientific Reports 13, Article number: 15094 ( 2023 ) Cite this article 266 Accesses Metrics Abstract To address the processing scheduling problem involving …Web
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China Concrete Slab Production Line manufacturers - Select 2023 high quality Concrete Slab Production Line products in best price from certified Chinese Can Production Line, Material Production Line suppliers, wholesalers and factory on Made-in-China ... Carousel Plant Precast Concrete Production Line for Walls and Slabs. US$ 589000 …Web
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The prefabricated concrete composite (PCC) plate is a critical and major component in construction projects [17]. ... PCC-plate production line, reinforcement production and processing, in-plant transportation, steam curing, and auxiliary equipment. (2) Transport-logistics substage.Web
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This research represents an innovative application of lean production theory and value stream mapping in a complex production line of precast concrete …Web
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One part is quantitative uncertainty, whose uncertainty range is known according to the data in external literature: (1) the loss rate when handling precast concrete on-site varies from 3% to 5% ; (2) the energy for assembling precast concrete components on site is about 10% to 20% of the energy for conventional concrete structures. By …Web
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In contrast with the production of general manufacturing products, different types of components can be produced simultaneously on a prefabricated component …Web
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On the other hand, during the manufacturing stage, a large amount of wet work was transferred to the factory, prefabricated components were produced in a mechanized, standardized, and intelligent production line, resulting in a significant reduction in waste generation . The air pollution produced by conventional construction …Web
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zone. Ha et al. [22] designed a U-shaped steel strand semi-precast concrete beam-column joint suitable for fortified earthquakes. The seismic performance of the new prefabricated joint could meet the requirements for use in moderate earthquake areas. Yu et al. [23] proposed steel strands anchored precast concrete beam-column joints. The …Web
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Introduction. A prefabricated building refers to a building in which all or parts of the building are prefabricated in a factory. These are then transported to construction sites for assembly, connection, and partial cast-in-situ construction (1–3)pared with traditional construction methods, prefabrication has many advantages ().First, using …Web
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In addition, adopting prefabricated construction can save expenses of ¥43.1/m 2 in the rental of mortar pump systems (B31), ¥28.9/m 2 in the rental of suspended platforms (B32), and ¥137.5/m 2 in the rental of concrete pump systems (B33). B31, B32, and B33 account for 20.6%, 13.8%, and 65.6% of B3, respectively. Figure 8.Web
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The increasing number of prefabrication projects has increased the demand for precast concrete (PC) components. The production cost of PC components significantly affects the development …Web
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Depending on the fabrication environment, 3DCP can be categorized under in-situ fabrication or prefabrication. The examples in Fig. 3.1, Fig. 3.2 show a gap in the level of functional diversity and geometric complexity between the two categories [13].In-situ 3DCP is predominantly used to produce walls with straight extruded geometries [4].As such, the …Web
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Steel formworks are widely used in prefabricated buildings thanks to their good characteristics. With the rapid development of engineering construction in China, steel formwork concrete structures, characterized by convenient construction, good seismic performance, and high strength, are expected to be more extensively applied in …Web
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A technical design is developed to attend and assist populations in need of single-family housing and for populations in post-emergency situations. It exposes a production process of precast …Web
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Optimizing the production process of prefabricated steel frames: VSM, JIT: Empirical analysis, DES: 9: Gallardo et al. (2014) [98] Brazil: Promoting line flow precast concrete process through basic stability: PDCA: Empirical analysis: 10: Ahmad et al. (2019) [30] Malaysia: Optimizing the reinforcement work process in the precast concrete …Web
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Prefabricated buildings consume more concrete, steel bar, and diesel and fewer wall materials than traditional cast-in-situ buildings. Next Article in Journal. ... Hong, J.; Shrestha, A.; Martek, I. A production line-based carbon emission assessment model for prefabricated components in China. J. Clean. Prod. 2019, 209, 30–39. [Google Scholar ...Web
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The precast concrete panel sizing selected was two 6 × 4 ft (1830 × 1220 mm) panels set on two 2 × 4 ft (610 × 1220 mm) panels with a ¾ in. (19 mm) wide sealant joint forming a cross between all four panels. The committee agreed that this 8 × 8Web
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1. Introduction1.1. Strategies to reduce the environmental impact of the concrete industry. Concrete is the most consumed material in the world, with 30 gigatons of annual demand (Monteiro et al., 2017).In Europe, concrete waste alone contributes about 30% of the total mass of solid waste (Böhmer et al., 2008).Made of sand and gravel …Web
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The application relates to a concrete production technology discloses a superimposed sheet production line, including prefabricated mould, the transmission device who is used for transporting prefabricated mould, transmission device includes the stand that arranges in proper order along process distribution direction, rotates the transfer gear of installing …Web
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The rework risk function was based on the loss expectancy method.FindingsThere are 13 core tasks that have higher impacts than the average level. The core tasks in the design stage account for of the tasks in the stage, those in the manufacturing stage account for 20% and those in the construction stage account for …Web
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Precast concrete (PC) components are the basic building blocks of prefabricated concrete buildings, and the production efficiency of PC component manufacture has a direct bearing on the benefits …Web
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2.3.1. Precast Concrete and Sustainability 24 2.3.2. Precast Construction Applications 28 ... Precast Building Parts Production Enterprise PCI: Precast/Prestressed Concrete Institute PDCA: Plan-Do-Check-Act ... Self Consolidating Concrete TBL: Triple Bottom Line VOC: Volatile Organic Compounds Vol.: Volume ...Web
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