d concrete aggregate in place of natural aggregate. The empirical inter-relationships developed among porosity, com-pressive strength and water permeability could be used in the mix design …
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Gulin provide the mix design for recycled aggregaye concrete solution case for you. … aggregate plant; about us; contact ; Your Location: … Recycled-Content Concrete Mix From Quickcrete – Green …
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RSM-based optimized mix design of recycled aggregate concrete containing supplementary cementitious materials based on waste generation and global warming potential. Resour. Conserv. Recycl., 167 (2021), Article 105420, 10.1016/j.resconrec.2021.105420. View PDF View article View in Scopus Google Scholar
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Several desirable characteristics of concrete, such as strength, slump, durability and low CO2 emission, cannot always be obtained by current conventional mix proportion design methods for recycled aggregate concrete (RAC), because Recycled aggregate generally has lower quality than natural aggregate owing to residual cement paste and various impurities. We treat …
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The mechanical properties of recycled brick aggregate concrete (RBAC) are significantly affected by design parameters such as recycled brick aggregate (RBA) replacement ratio and water-cement ratio, which not only increases the difficulty of designing RBAC by experimental or theoretical methods, but also makes the mechanical properties (compressive …
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Therefore, there is a need to develop sustainable concrete which either directly or indirectly reduces CO 2 emissions. One way to achieve this is by limiting the consumption of cement to the maximum extent, by partially replacing it with supplementary cementitious materials (SCMs), which are majorly industrial by-products and by optimizing the mix designs [21], [22], …
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This paper puts forward a strength-based mix design method for recycled aggregate concrete using a modified empirical formula. A total of 30 mixes, the amount of cement varies from 300 kg/m 3 to 500 kg/m 3 and the proportion of recycled coarse aggregate ranges from 0% to , were prepared for the regression analysis of relationships between multiple …
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This review reveals that there is a need for systemic data collection that could enable automated concrete mix design. The findings concerning various mix concrete designs …
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The unit price of the prepared CRFA concrete was around 12.7% lower than that of the natural aggregate concrete. Additionally, the proposed procedure for the concrete mixture design could recycle all concrete waste into the new concrete and replace all the natural fine aggregate in the concrete mixture.
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This paper puts forward a strength-based mix design method for recycled aggregate concrete using a modified empirical formula. A total of 30 mixes, the amount of cement varies from 300 kg/m³ to ...
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Download scientific diagram | Mix design of recycled aggregate concrete from publication: Effect of Recycled Concrete Aggregates on Compressive Strength and Water Permeability of Concrete | This ...
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It is also important to point out that the performance characteristics of the parent concrete do not affect the performance of concrete with RA while the mix design plays a very important role [56
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In this study, to investigate the usability of second RCA, five typical concrete mix-design methods were selected to prepare RAC with a service life of 50 years for freeze-thaw (F–T) environments in cold regions: the ordinary concrete design method, high-performance method, saturated surface-dry aggregate design method, equal mortar volume ...
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What is more, recent investigations have tried to optimize concrete mix proportion by using artificial neural network (ANN). For example, Tanja et al. [18] proposed an optimized quantitative model for proportioning concrete mixtures based on cement content, water/cement ratio and percentage of RA replacement according to RBAC compressive strength. Li et al. …
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The aim of this study is to determine the optimum mix design of recycled concrete and so the methodology of the research is based on this purpose. Therefore, unlike the most previous studies which just only aimed to investigate the different fresh and hardened properties of the recycled concrete, the present study aims to find an equivalent ...
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The materials utilized in the recycled aggregate geopolymer concrete (RAGPC) mix design exhibit variations compared to those employed in conventional concrete mix designs. These distinctions encompass details regarding the types and ratios of recycled aggregates, binders, and activators (e.g., sodium hydroxide, sodium silicate) integrated into ...
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The actual porosity of RCAs depends on two variables: the composition of the original concrete and the processing procedure adopted for transforming concrete debris into recycled concrete aggregates [26].The presence of a constituent characterised by a higher porosity has a twofold influence on the strength of RAC.
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This study proposed a new mix design method for C30 recycled concrete with coarse recycled concrete aggregate (CRCA) from two mixed SC with different strengths. Compressive and …
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Phase II work Using each of the four standard mix design methods viz., 13. code method, ACI method, RRL method and CONSTRUCTION & BUILDING MATERIALS Vol. 4 No. 4 DECEMBER 1990 189 Table fl Mix proportions of MI5 grade, natural and recycled aggregate concrete Natural Aggregate Concrete Recycled Aggregate Concrete Method of mix design Mix …
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This paper prepared recycled aggregate pervious concrete by replacing natural aggregate with volume of waste concrete. We carried out experiments to study the influences of strength grade and ...
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The concrete mix design process considers key performance parameters such as compressive strength, chloride ion penetration resistance, and carbonation resistance. ... However, the porous nature and higher water adsorption of recycled aggregate pose challenges in recycled aggregate concrete (RAC) including a reduction in workability, increased ...
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International Journal of Concrete Structures and Materials Vol.6, No.4, pp.239–246, December 2012 DOI 10.1007/s40069-012-0024-x ISSN 1976-0485 / eISSN 2234-1315 Mix Design for Pervious Recycled Aggregate Concrete Rasiah Sriravindrarajah1),*, Neo Derek Huai Wang2), and Lai Jian Wen Ervin2) (Received August 29, 2012, Accepted November 6, 2012 ...
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Therefore, a novel method is proposed for designing self-compacting recycled aggregate concrete (SCRAC) mix. The method is developed by target slump-flow and target …
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Typical pervious concrete mix consists of 180–355 kg/m 3 of binder material, 1420–1600 kg/m 3 of coarse aggregate and water to cement …
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Concrete mix design based on water film thickness and paste film thickness. Cem. Concr. Compos., 39 (2013), pp. 33-42. View PDF View article View in ... Adverse effect of the mass substitution of natural aggregates by air-dried recycled concrete aggregates on the self-compacting ability of concrete: evidence and analysis through an example. J ...
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In this mix design method, the acceptable substitution of recycled concrete aggregate (RCA) depends on the residual mortar content (RMC) attached on the surface of RCA. ... Influence of the amount of recycled coarse aggregate in concrete design and durability properties. Construct. Build. Mater., 26 (1) (2012), pp. 565-573. View PDF View ...
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One key research area in the field of RAC is the design of concrete mix proportions. Currently, this design work is mostly dependent on manual calculations, which not only consume a lot of manpower, increasing project costs, but also place additional pressure on the environment (Mohammadi Golafshani et al., 2024).Additionally, concrete from preparation …
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Download Citation | On Feb 1, 2024, Emadaldin Mohammadi Golafshani and others published Sustainable mix design of recycled aggregate concrete using artificial intelligence | Find, read and cite ...
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In this paper, the authors have identified the most suitable method of mix design for RAC, from amongst the available conventional methods of mix design. An influencing …
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Chemistry-informed multi-objective mix design optimization of self-compacting concrete incorporating recycled aggregates. Author links open overlay panel Xin-Yu Zhao, Ming-Yang Hong, Bo Wu. ... Self-consolidating concrete using recycled concrete aggregate and high volume of fly ash, and slag. Constr. Build. Mater., 153 (2017), pp. 307-316.
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DOI: 10.1016/j.jclepro.2025.144734 Corpus ID: 275461709; Sustainable mix design and carbon emission analysis of recycled aggregate concrete based on machine learning and big data methods
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The improved mechanical properties of recycled aggregate concrete (RAC) by employing the particle packing method (PPM) of the mix design approach encourages its application to study the ...
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natural aggregate (granite) or recycled concrete aggregate, as shown in Fig. 1. The specific gravity of the natural aggregate was 2.65 and that for recycled concrete aggregate was 2.19 and 2.04 for 20 and 13 mm maximum size recycled concrete aggregate, respectively. The water absorption for 20 and 13 mm recycled concrete aggregates was 5.3 and ...
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