Physics-assisted machine learning methods for predicting the
Recycled aggregate concrete (RAC) has become a popular building material due to its eco-friendly features, but the difficulty in predicting the crack resistance of RAC is increasingly impeding its ...Web
اقرأ أكثرPredicting Compressive Strength of Concrete Containing Recycled …
Using recycled aggregate in concrete is one of the best ways to reduce construction pollution and prevent the exploitation of natural resources to provide the needed aggregate. However, recycled aggregates affect the mechanical properties of concrete, but the existing information on the subject is less than what the industry needs. Compressive …Web
اقرأ أكثرA Comprehensive Review on Recycled Aggregate and
This study provides a comprehensive review on recycled aggregate (RA) and recycled aggregate concrete (RAC) regarding their history, recycling, reuse and …Web
اقرأ أكثرMixture Optimization of Recycled Aggregate Concrete Using Hybrid …
Recycled aggregate concrete (RAC) contributes to mitigating the depletion of natural aggregates, alleviating the carbon footprint of concrete construction, and averting the landfilling of colossal amounts of construction and demolition waste. However, complexities in the mixture optimization of RAC due to the variability of recycled …Web
اقرأ أكثرPrediction of the sulfate resistance for recycled aggregate concrete
Recycled aggregate concrete (RAC) has been acknowledged as an effective way to achieve green building and meet the sustainable development goal. ... Observational Analysis of Fire-Induced Spalling of Concrete through Ensemble Machine Learning and Surrogate Modeling. J. Mater. Civ. Eng., 33 (1) (2021), p. 04020428, …Web
اقرأ أكثرModeling the mechanical properties of recycled aggregate concrete …
DOI: 10.1016/j.rnrec.2022.106812 Corpus ID: 254584372; Modeling the mechanical properties of recycled aggregate concrete using hybrid machine learning algorithms @article{Peng2023ModelingTM, title={Modeling the mechanical properties of recycled aggregate concrete using hybrid machine learning algorithms}, …Web
اقرأ أكثرMechanical performance of recycled aggregate concrete in green …
1. Introduction China's total output of commercial concrete was 3.06 billion cubic meters, an increase of 5.53% compared with the previous year in 2021 [1]. …Web
اقرأ أكثرHow Is Recycled Concrete Made? | Aggregates Equipment, Inc.
Recycled concrete aggregate, often abbreviated to RCA, is also known as "crushed concrete." This name sums up what RCA material is: crushed asphalt and concrete debris that has been screened, cleaned, and reused in future sustainable construction projects. RCA concrete is most often sourced from …
اقرأ أكثرEfficient creep prediction of recycled aggregate concrete via …
This study proposed the surrogate model to predict recycled aggregate concrete (RAC) creep behavior utilizing machine learning (ML). Both grid search …Web
اقرأ أكثر(PDF) Concrete using recycled aggregates
PSTSMA method improve up to 6.35% the strength of recycled aggregate concrete made up of recycled aggregate at 28 days respectively w.r.t. Normal Mixing Approach(NMA).Web
اقرأ أكثرDurability of Recycled Concrete Aggregates Prepared with
Abstract. Recycled concrete aggregates (RCAs) have low quality when compared with natural or conventional aggregates as the paste adhering to it is the key aspect that affects its functionality. Since the adhering cementitious paste weakens the adhesion between the aggregate and the binder, it becomes a decisive factor in the …Web
اقرأ أكثرEvaluating compressive strength of concrete made with recycled concrete
The input parameters used for modeling are cement content, water content, aggregate content, natural aggregate content, recycle concrete aggregate content, sand content, water absorption of natural aggregate and RCA. The result indicates that the performance of hybrid models of GB_PSO, XGB_PSO, and SVR_PSO has higher …Web
اقرأ أكثرEfficient creep prediction of recycled aggregate concrete via machine
This paper comprehensively investigated the surrogate model of recycled aggregate concrete (RAC) creep behavior prediction for the first time utilizing five typical machine learning (ML) algorithms trained with the RAC_Creep_v1 database. ... Innovative modeling framework of chloride resistance of recycled aggregate concrete using …Web
اقرأ أكثرPrediction of compressive strength of recycled aggregate concrete …
In the recycled aggregate concrete, the adherence of mortar in the concrete affects the hardness of the aggregates as well as results in increased water absorption. ... Mixture Optimization of recycled aggregate concrete using hybrid machine learning model. Materials, 13 (2020), p. 4331. CrossRef Google Scholar [4] E.M. Golafshani, A. …Web
اقرأ أكثرCompressive strength of concrete with recycled aggregate; a machine
A concrete mixture available in the literature (Poon et al., 2004) is chosen and natural fine aggregate, natural coarse aggregate and both natural fine and coarse aggregate are replaced with recycled fine aggregate, recycled coarse aggregate and recycled fine and coarse aggregate, respectively in a range of 0–90% with the step of …Web
اقرأ أكثرRecycled Concrete Aggregate- How to Make It and What Is It …
Recycled concrete aggregate machines like protable and mobile crushers can help to get coarse aggregate while ball mill or powder grinding mill can …Web
اقرأ أكثرRecycled Concrete as Aggregate for Structural Concrete Production …
Figure 1. Waste concrete for recycling: concrete cubes and precast column. Figure 2. Recycled material after (a) primary and (b) secondary crushing. Crushed concrete particles were separated into standard fractions of coarse aggregate (4–8 mm, 8–16 mm and 16–31.5 mm), as seen in Figure 3. Figure 3.Web
اقرأ أكثرAccuracy Prediction of Compressive Strength of Concrete
The use of alternative materials and recycling in construction has gained popularity in recent years as part of the industry’s commitment to sustainability. One such material, recycled aggregates, has been extensively studied over the past two decades for its potential to replace natural aggregates in cement-based composites. …Web
اقرأ أكثرMulti-criteria optimization of recycled aggregate concrete mixes
This study intends to develop a sustainable strategy for selection of recycled aggregate concrete (RAC) through a series of experiments and using multi-criteria decision-making (MCDM) techniques. The mechanical, environmental and economic aspects of RAC were integrated to evaluate the most sustainable concrete, which may …Web
اقرأ أكثرPerformance enhancement of recycled concrete aggregate – A …
Because the original cement mortar attached on NA is more porous than NA. RCA have higher porosity and water absorption, and lower strength compared with NA. The water absorption of RCA ranges 3–12% compared with 1–5% for NA (Gómez-Soberón, 2002, Katz, 2003). The density and absorption of RCA depend upon the W/C ratio of the …Web
اقرأ أكثرAssessing the compressive strength of self-compacting concrete …
Mixture optimization of recycled aggregate concrete using hybrid machine learning model. Materials, 13 (2020), p. 4331, 10.3390 ... [20] F. Khademi, S.M. Jamal, N. Deshpande, S. Londhe. Predicting strength of recycled aggregate concrete using artificial neural network, adaptive neuro-fuzzy inference system and multiple linear regression. Int …Web
اقرأ أكثرCrushing and Screening Equipment for Concrete Recycling
March 14, 2023. 1. 9033. Crushing and Screening Equipment for Concrete Recycling. There are two approaches to recycling concrete. One approach is to haul the concrete debris to a permanent recycling facility or quarry for crushing and screening. The alternative is to crush and screen the material at the demolition site.Web
اقرأ أكثر5 Concrete Recycling Machines You Have to Know
5 kinds of concrete recycling machines These 5 kinds of concrete recycling machines are mostly used and most popular equipment. The followings are the reasons why you can choose them …Web
اقرأ أكثرConcrete Recycling Solutions for Your Business | Rubicon
This debris is then picked up and dumped into the top of the concrete recycling machine, from which it falls into a crushing impactor, which as the name suggests, crushes the concrete into small pieces known as recycled concrete aggregate (RCA). Depending on the size of RCA that the concrete recycler is looking to create, the …Web
اقرأ أكثرMachine learning techniques for recycled aggregate concrete …
This study aims to arrive at models to correlate the mechanical properties of recycled aggregate concrete (RAC). An experiment was performed on the recycled coarse aggregate (RCA) ratio of 0%, 25%, 50%, and with 400kg/m3 of cement content, varying water-to-cement ratio (w/c) 0.3, 0.4, 0.48, and super plasticizer (SP) …Web
اقرأ أكثرProperties of Concrete Prepared with Recycled Aggregates …
From the perspective of sustainable development, recycling waste concrete to produce recycled concrete aggregate (RCA) can effectively reduce harm to the environment [2,3]. ... Then RCA was ground by a machine. The combination of heating and grinding treatment improved the apparent density of RCA by 4.67% at 600 °C. However, …Web
اقرأ أكثرPredicting the Splitting Tensile Strength of Recycled Aggregate
The application of waste materials in concrete is gaining more popularity for sustainable development. The adaptation of this approach not only reduces the environmental risks but also fulfills the requirement of concrete material. This study used the novel algorithms of machine learning (ML) to forecast the splitting tensile strength …Web
اقرأ أكثرPrediction of compressive strength of recycled aggregate concrete …
With the sustainable development of the construction industry, recycled aggregate (RA) has been widely used in concrete preparation to reduce the environmental impact of construction waste. Compressive strength is an essential measure of the performance of recycled aggregate concrete (RAC). In order to understand the correspondence …Web
اقرأ أكثرMechanical performance of recycled aggregate concrete in green …
The use of recycled aggregate concrete can save natural resources and reduce environmental pollution, which has been widely concerned in recent years. ... it is found that [32] RCCA is affected by the strength of the original concrete, crushing machine, and crushing degree, and the quality and content of old mortar of recycled aggregate …Web
اقرأ أكثرInfluence of recycled concrete aggregates on strength properties …
The recycled aggregate concrete has a compressive strength of at least 76% and modulus of elasticity from 60% to. Problem statement. ... based on machine learning. A database containing 176 circular and 126 rectangular RACFST samples was employed to assess the applicability of existing specification, and was then used to train …Web
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