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Biochar as additive for improved building performances and
2022.8.13 Biochar as additive for improved building performances and heavy metals solidification of sediment-based lightweight concrete Ying Zhang, Huacheng Xu, Shuwei Fang, Deping Li, Weizhen Xue, Bing Chen Ling Zhao Environmental Science and
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Biochar as additive for improved building
2022.8.13 Last Updated: 09 Sep 2023. Request PDF Biochar as additive for improved building performances and heavy metals solidification of sediment-based lightweight concrete The sustainable disposal of ...
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Thermal Optimization of Additively Manufactured
2022.7.15 In this paper, the focus lies on a lightweight concrete optimized for extrusion. An additively manufactured element made of lightweight concrete with a cellular structure and air-filled voids (for the
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Synthetic Lightweight Additives Advance Concrete
2016.8.3 Ultralight polystyrene-based additives serve as a partial volume substitution material for the heavy sands and gravels in concrete. Such additives reduce the unit weight of concrete, which in turn reduces
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Multifunctional Concrete -Additive Manufacturing
2017.9.25 PDF Research is presented that shows how lightweight concrete structures can be fabricated using different additive
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Additive for lightweight concrete with 100% PS Innovation Concrete
In the K4 project, our goal is to develop an additive that can be used to produce plastic granules (PP; PE), polystyrene bead waste (EPS) and rubber fragments of different sizes
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(PDF) Additive Manufacturing of Thermally Enhanced Lightweight Concrete ...
2021.4.6 In this research, the additive manufacturing method of lightweight concrete extrusion and its potential for thermal performance via geometric customisation is explored.
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The effect of carbon nanotubes on mechanical properties of
2022.1.1 These promising features are why, among all concrete additives, CNTs have been chosen as a partial substitute for cement in the present study. Besides CNTs, there
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Enhancing the properties of lightweight aggregates using
2023.1.1 Abstract. The aim of the research was to investigate the applicability of different volcanic rocks as additives materials in lightweight aggregates (LWA)
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Lightweight Concrete 3D Printing by Selective Cement
2020.7.8 The 3D printing technology Selective Cement Activation (SCA) is a particle-bed-based additive manufacturing method in which a dry mixture of sand and cement is
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Frontiers Agricultural and Aquaculture Wastes as Concrete Components ...
2021.11.11 Introduction. Concrete is one of the most used building materials in the world. The global annual concrete consumption is close to 17.5 billion tons, in which the required aggregate and cement are about 13 billion tons and 2.6 billion tons, respectively (Bo et al., 2018).Excessive use of quarrying and mining to collect aggregates leads to the
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Foaming Agents - North America
1 天前 Admixtures for flowable fill and light-weight concrete. Foaming agents reduce concrete density to make lightweight concrete or low strength (flowable fill) concrete allowing for: I ncreased yield. Optimum workability and p umpability. Little or no bleeding. Controlled segregation. Reduced shrinkage and settlement. Controlled strength development.
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Thermal Optimization of Additively Manufactured
2022.7.15 Combining the additive manufacturing (AM) process of extrusion with lightweight concrete, mono-material but multi-functional elements with an internal cellular structure can be created to achieve
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Review of concrete with expanded polystyrene (EPS):
2022.9.15 Lightweight concrete with expanded polystyrene (EPS) has been adopted for several decades. ... Within this decade, an additive manufacturing in construction or 3D concrete printing have been ubiquitously investigated. Regarding the concretes containing EPS beads, the studies currently focused on developing and improving mix proportions
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Lightweight PET based composite aggregates in Portland cement
2021.2.1 This article presents testing results of cement mortars, in which Composite Lightweight Aggregates (CLA) obtained in laboratory conditions substitutes a part of natural aggregates. The new aggregates are sustainable products obtained by using 100% waste by-products: PET flakes and sewage sludge fly ash (ssFA) streams or siliceous fly ash (FA).
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Materials Free Full-Text Artificial Lightweight Aggregates
2022.5.31 In study of Rehman et al. (2020) , it was found that geopolymer-based lightweight concrete has a higher ultrasonic pulse velocity, which is 2936 m/s to 3016 m/s as compared to cement-based lightweight concrete, which is 2601 m/s to 2835 m/s. This can be explained by the higher strength and more complex microstructure of the geopolymer
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(PDF) Properties of Sugarcane Fiber on the Strength of
2017.1.1 of the Normal and Light weight Concrete . Faisal Shei kh Kh al id. 1,*, ... additive show ed comp ressive strengt h 21.30 M Pa mea nwhile s ample c ontain ing 1.0 % record ed compr essive str ...
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Development of innovative lightweight slurry in oil well
2021.9.1 Abstract. The innovative lightweight slurry 85 lb/ft3 (pounds per cubic foot) was prepared using three blended materials with a combination of 20% micro silica, 44% cenosphere and class-g cement, a special hydraulic binding material to forms strong bonding energy due to a combination of moderate sulphate-resistant and high sulphate
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PAPER OPEN ACCESS
outstanding sound insulation, light weight, superior thermal insulation performance and good fire resistance [7-9]. Lightweight foamed concrete is usually prepared by introducing foaming agent such as hydrogen peroxide and plant surfactants [10, 11] into cement paste to form high volume of pores and voids in the matrix.
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(PDF) Generating a Structural Lightweight Concrete
2017.11.14 Abstract and Figures. Structural lightweight concrete has an in-place density (unit/weight) on the order of 90 to 115lb/ft 3 (1440 to 1840 kg/m 3) compared to normal weight concrete with a density ...
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Lightweight expanded clay aggregate as a building material
2018.5.10 The lightweight concrete (LWC), whose aggregate is the keramzit (i.e. expanded clay), presents as a potential material for construction in marine environments. However, only a few studies have dealt with the durability of the lightweight expanded clay aggregate concrete and in particular, the chloride diffusion coefficient of this material ...
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Oil-well lightweight cement slurry for improving
2022.11.28 A dry blend of lightweight additives (e.g., the first formulation with 218 g of D-124, 6 g of D-112, 113.55 cc of D-600, 4 g of CFR-3, and 2 cc of antifoam) and 1.704 kg Portland cement powder class G was mixed to 750 mL distilled water (equals 44 % mass fraction of cement class G) in a cement mixer at a speed of 4000 rpm for 15 sec.
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How to Make Lightweight Concrete Using Styrofoam Hunker
2023.11.7 Step 7. Remove the cement from the mold after 24 hours and allow the EPScrete to complete the curing process. Curing should take a full month, and the stone will need to be kept damp during the process in order to allow full strength bonding to occur. Lightweight concrete, also known as EPScrete (expanded polystyrene concrete), is a
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The effect of carbon nanotubes on mechanical properties of
2022.1.1 Besides CNTs, there are many additives and substitutions for basic concrete materials that can make changes to lightweight concrete's mechanical properties. For instance, Se-Jin Choi et al. have found that aggregates size up to 8 mm can increase the tensile strength of lightweight concrete [61], and more delicate materials can improve the ...
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Materials Free Full-Text Sustainable Green Lightweight Concrete ...
2021.6.15 Then, green lightweight aggregate concrete mixes (GLACs) were produced at 100% replacement of normal weight and lightweight coarse aggregate with developed PGLAs; and their fresh, hardened, microscopic and durability-related properties were compared to those of control mixes. ... (PGLA) manufactured using PET plastic waste
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Lightweight Concrete 3D Printing by Selective Cement
2020.7.8 A possible solution to this problem is the use of lightweight concrete instead of common concrete in the additive manufacturing process. Henke et al. as well as Matthäus et al. [8,9,10,11,12] showed that it is possible to produce exterior wall elements without additional thermal insulation through additive manufacturing by concrete extrusion.
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Biochar as additive for improved building performances and
As the amount of biochar addition increased from 0 to 2% (w/w), the compressive strength of the dredged sediment-based lightweight concrete (DS-LC) increased from 3.92 to 4.61 MPa. Accordingly, the thermal conductivity decreased from 0.237 to 0.222 W/(m K), the water absorption decreased by 6%, and the water resistance coefficient increased by 33%.
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Multifunctional Concrete - Additive Manufacturing by
2023.11.7 Lightweight concrete and additive manufacturing in combination 2.1. Potential Lightweight concrete itself is already a multifunctional material as it unites loadbearing capabilities
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Functionally graded lightweight cement-based composites
2022.8.1 Recently additive manufacturing has been introduced to cement-based materials for 3D concrete printing (3DCP) based on its high automation degree and outstanding design flexibility [21], [22]. The instinct of 3DCP to deposit concrete layer by layer is just in favor of the fabrication of functionally graded structures.
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Green and Durable Lightweight Aggregate Concrete: The
2020.7.7 Lightweight aggregate concrete manufactured by solid waste or recycled by-products is a burgeoning topic in construction and building materials. It has significant merits in mitigating the negative impact on the environment during the manufacturing of Portland cement and reduces the consumption of natural resources. In this review article, the
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