mix design for recycled aggregaye concrete
A framework for low-carbon mix design of recycled aggregate concrete
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 …
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Evaluation of conventional and equivalent mortar volume mix design
The use of recycled aggregate concrete (RAC) is undoubtedly on the increase and further research is required for more appropriate mix design methods. This paper presents the result of investigations into the mix design of RAC. The study examined experimentally two conventional and one unconventional mix design methods. The …
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A Novel Mix Design Method for Mixed Recycled Coarse …
Due to the complex component of coarse aggregate used in mixed recycled aggregate concrete (MRC), the conventional mix design method is not suitable for MRC. The …
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Mix design for recycled aggregate pervious concrete based …
DOI: 10.1016/j.conbuildmat.2020.119776 Corpus ID: 225030913; Mix design for recycled aggregate pervious concrete based on response surface methodology …
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Optimum mix design of recycled concrete based on the …
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 …
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Intelligent mix design of recycled brick aggregate concrete …
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 …
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Mix Design of Recycled Coarse Aggregate Self-Compacting Concrete …
Based on the orthogonal test design and range analysis method of the fresh and hardened properties of RCASCC, the optimal mix is as follows: water-binder ratio of 0.269, recycled coarse aggregate ...
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sbm/sbm mix design for recycled aggregaye concrete.md …
Contribute to chengxinjia/sbm development by creating an account on GitHub.
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Mix Design and Properties of Recycled Aggregate Concretes
This work is devoted to the study of fresh and hardened properties of concrete containing recycled gravel. Four formulations were studied, the concrete of …
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A Novel Mix Design Method for Mixed Recycled Coarse Aggregate Concrete
The experimental results showed that when the water:cement ratio is 0.5, compared with the conventional concrete mix design method, the proposed mix design method can increase the compressive strength and elastic modulus by 5% and 22.8%, respectively, and reduce the heterogeneity degree and shrinkage value (90 days) by 8.5% and 23.4%, …
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Mix proportion design method of recycled brick aggregate concrete …
1. Introduction. A large amount of construction waste is produced every year in the world. In China alone, more than 1.8 billion tons of construction waste is produced by demolishing old buildings every year, of which more than 70% is crushed brick waste [1].Construction waste recycling is very important to environmental protection.
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Mix Design for Pervious Recycled Aggregate Concrete
Moreover, sriravindrarajah et al. [23] in their mix design of pervious recycle aggregate concrete stated that using aggregate size variation from 5 to 13 mm and 13 to 20 mm increased the ...
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Mix Design for Pervious Recycled Aggregate Concrete
Figure 11 shows the relationships among porosity, strength and permeability for pervious concrete, developed using the Eqs. (3 to 5), as a function of the aggregate type. For a given porosity, Fig. 11could be used to estimate the strength and permeability of pervious concrete. As an …
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Mix design for recycled aggregate pervious concrete based …
Zhang et al. [22] applied RSM to the design of a recycled aggregate permeable concrete mix and found a suitable combination of aggregate gradation and …
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Mix Design Recycled Aggregate Pervious Concrete and the …
The compressive strength and the permeability coefficient of recycled aggregate pervious concrete based on this mix proportion are 25.07 Mpa and 6.23 mm/s, respectively, which are in line with the provisions of Technical Specification for Application of Recycled Aggregate Pervious Concrete (CJJ/T 253-2016) and can be used for …
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An innovative approach to fly ash-based geopolymer concrete mix design …
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) …
ادامه مطلبStudy of mix design and performance of alkali-activated concrete …
As a fine aggregate, river sand with a fineness modulus of 3.0 and a muck component of 0.7% was employed. Construction waste was used as recycled coarse aggregate with a good gradation of classes I, II, and III as per JGJ/T 240-2011 [37], and the performances are shown in Table 2.Alkali-activated natural aggregate concrete …
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mix design of recycled aggregate concrete | Mining
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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Recycled aggregate concrete: Particle Packing Method (PPM) of mix
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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Mix Design and Recycled Aggregates Effects on the Concrete …
An experimental program was carried out to study the properties of concretes with C25/30 and C35/45 resistance classes designed using natural aggregates and recycled ones provided from construction and demolition waste (C&DW). Eight mixtures were prepared with different incorporation ratios of fine and coarse recycled …
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Sustainable mix design of recycled aggregate concrete …
Sustainable mix design of recycled aggregate concrete using artificial intelligence. Emadaldin Mohammadi Golafshani, Taehwan Kim, Ali Behnood, Tuan Ngo, Alireza Kashani JOURNAL OF CLEANER PRODUCTION | ELSEVIER SCI LTD | Published : 2024 DOI: 10.1016/j.jclepro.2024.140994. Cite ...
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An intelligent mix design system for sustainable concrete …
The ANN model developed used 14 input parameters that included: the mass of water, cement, sand, natural coarse aggregate, recycled coarse aggregate …
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Utilization of recycled crumb rubber as fine aggregates in concrete mix …
The ingredients used in the concrete mix design were subjected to a sieve analysis to compare the gradation of the aggregates and to able to have a comprehensive few of what sort of particle size the mix contains. ... Lee H. Use of recycled tire rubbers in concrete. In: Proceedings of the third material engineering conference, infrastructure ...
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New Mix Design Method for Recycled Concrete Using Mixed …
Abstract This study proposes a new mix design method for C30 recycled concrete using recycled aggregate crushed from different strength source concrete …
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A strength-based mix design method for recycled aggregate concrete …
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 …
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MIX DESIGN PROCEDURE FOR RECYCLED AGGREGATE CONCRETE
Semantic Scholar extracted view of "MIX DESIGN PROCEDURE FOR RECYCLED AGGREGATE CONCRETE" by N. Bairagi et al. Skip to search form Skip to main content Skip to account menu ... but fragmented research on recycled concrete aggregates and recycled aggregate concrete, which has been carried out in various …
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Chemistry-informed multi-objective mix design …
The quest for an optimized RASCC mix design, accommodating multiple constraints including mechanical performance, economic feasibility, and low-carbon environmental benefits, calls for in-depth investigation. ... Self-consolidating concrete using recycled concrete aggregate and high volume of fly ash, and slag. Constr. Build. …
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A novel mix design methodology for Recycled Aggregate Concrete
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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RSM-based optimized mix design of recycled aggregate concrete …
The Contour plots in Fig 1 show that 5% SF increased the compressive strength by 3.5%, and for 10% SF, this increase was 7%. Also, 20% GGBFS led to 23% reduction in the compressive strength, and for 40% GGBFS there was a 41% reduction. However, a different trend was observed for Recycled Aggregate Concrete (RAC).
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AI-Assisted optimisation of green concrete mixes incorporating recycled
1. Introduction. Concrete is the most commonly used material in the construction industry [1].However, with more than 10 billion tons of annual production, concrete manufacturing contributes to 8% of global greenhouse gas emissions, 3% of global energy use, and significant natural resource depletion [2].Therefore, the transition …
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