Prediction on compressive strength of recycled aggregate self-compacting concrete by machine learning method. Author links open overlay panel Suhang Yang a, Jingsong Sun a, Xu Zhifeng b. Show more. Add to Mendeley. ... [21], and Duan et al. [22] proved that ANN can be used to predict the compressive strength of concrete …
WhatsApp: +86 18221755073
recycled concrete aggregate, asphalt-covered recycled concrete aggregate, and asphalt-covered natural aggregates. ..... 55 Figure 12: The carbonation rate of cementitious material as a function of the relative
WhatsApp: +86 18221755073
Recycled concrete is a cheaper aggregate building material than new concrete. ... These machines break down large pieces of concrete into more manageable sizes. Recyclers then feed the broken concrete into a screening machine, which separates the material into different sizes. Any large pieces remaining are crushed again, and the smaller pieces ...
WhatsApp: +86 18221755073
Rapid urbanization and industrialization have spurred an increase in concrete manufacturing, contributing to resource depletion and environmental damage. However, this challenge can be addressed by producing concrete from recycled aggregates and industrial waste ashes instead of natural aggregates and cement. …
WhatsApp: +86 18221755073
These machines can reduce larger rocks to smaller rocks, gravel, or even dust! The concrete can be refined for rebar, wood, or other metal chunks before being added to these machines. There are several types of crushers: ... Recycled concrete aggregate offers many diverse advantages, among the most prominent are safety and …
WhatsApp: +86 18221755073
There is a consensus that the performance of RAC is affected by a combination of factors such as water-cement ratio, replacement ratio of recycled coarse aggregate, curing age, etc (Liang et al., 2021; Liu, et al., 2022a, b), so the traditional method based on control variables may not be able to effectively analyze these …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
Many previous studies have successfully used recycled concrete aggregate (RCA) in the production of concrete and mortar [3], ... This study estimated the compressive strength of recycled concrete using six machine learning approaches, including GB, XGB, SVR, GB_PSO, XGB_PSO, and SVR_PSO. The input parameters …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
Mixture optimization of mechanical, economical, and environmental objectives for sustainable recycled aggregate concrete based on machine learning and metaheuristic algorithms. Author links open overlay panel Kaihua Liu a, Jiakai Zheng a, Shuxiong Dong a, Weili Xie a, ... Recycled aggregate concrete (RAC) has received …
WhatsApp: +86 18221755073
The 5030 scalper type screener allows me to screen soils as well as aggregates. The 7040 allows me to add recycled concrete to my list of services that I have by going green and recycling busted slabs instead of burying at a landfill. These machines have been reliable and the parts and support that I receive from the distributor has been very good.
WhatsApp: +86 18221755073
The variations in mechanical properties of geopolymer concrete (GPC) prepared with treated recycled concrete aggregate (RCA) in conjunction with a modified two-stage mixing approach (M-TSMA (sp-ggbs)) have been studied in the present research.Since GPC is prepared using fly ash (FA) and ground granulated blast slag …
WhatsApp: +86 18221755073
Concrete recycling and reclaiming equipment helps to recycle and reuse concrete that would otherwise be sent to landfills. This type of …
WhatsApp: +86 18221755073
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. ... Mixture Optimization of Recycled Aggregate Concrete Using Hybrid Machine Learning …
WhatsApp: +86 18221755073
Overview of Concrete Crushers. Concrete crushers are purpose-built machines designed to break down concrete into smaller, manageable pieces. They act as a pivotal solution in recycling concrete …
WhatsApp: +86 18221755073
However, at high temperatures, recycled aggregate concrete showed more strength deterioration than natural aggregate concrete, but the differences were not greater than 5% to 10%.
WhatsApp: +86 18221755073
2. Cackler, T. 2018. Technology Transfer of Concrete Pavement Technologies: Recycled Concrete Aggregate Usage in the US. National Concrete Pavement Technology Center, …
WhatsApp: +86 18221755073
DOI: 10.1016/j.jclepro.2024.141045 Corpus ID: 267612974; Multi objective optimization of recycled aggregate concrete based on explainable machine learning @article{Wang2024MultiOO, title={Multi objective optimization of recycled aggregate concrete based on explainable machine learning}, author={Shiqi Wang and Peng Xia …
WhatsApp: +86 18221755073
This study investigates the feasibility of introducing machine learning algorithms to predict the diffusion resistance to chloride penetration of recycled aggregate concrete (RAC). A total of 226 samples collated from published literature were used to train and test the developed machine learning framework, which integrated four standalone ...
WhatsApp: +86 18221755073
Figure 7 shows that when replacing the recycled concrete aggregate with natural aggregate in proportions of 10%, 20%, 30% and 40%, there is a decrease in its unit weight of 0.41%, 1.06%, 1.54% and 1.63%, respectively, compared to the reference concrete; likewise, 3 tests were carried out for each addition percentage to analyze its …
WhatsApp: +86 18221755073
1. Introduction. Reduction of carbon dioxide (CO 2) emissions associated with key industries such as building and construction plays a crucial role in achieving climate neutrality by 2050 (Rosa et al., 2022).Among these, the use of building materials, a major one of which is concrete, is a significant source of CO 2 emissions. The annual …
WhatsApp: +86 18221755073
Fine-sized recycled concrete aggregate equipment. Calcining equipment: rotary kiln Rotary kiln can reduce the moisture content less than 6% at a temperature from 400°C to 900°. During the …
WhatsApp: +86 18221755073
Recycled Concrete Aggregate A Sustainable Choice for Unbound Base ACI Fall 2015 Convention Denver, Colorado November 8, 2015 Cecil L. Jones, PE Diversified Engineering Services, Inc.
WhatsApp: +86 18221755073
Oversized concrete slabs can interrupt production. The RM Release System can undo a blockage by simply pushing a button on the wireless remote to keep crushing and put more product on the ground. Jaw & Impact Crushers to Recycle Concrete Whatever size your operation, RUBBLE …
WhatsApp: +86 18221755073
Three RA classes are defined: recycled concrete aggregate (RCA), recycled masonry aggregate (RMA), and mixed aggregate, being a mixture of both concrete and masonry aggregates. The use of recycled aggregates for concrete production is regulated through the European existing standards, and it is limited to the …
WhatsApp: +86 18221755073
This study proposed the surrogate model to predict recycled aggregate concrete (RAC) creep behavior utilizing machine learning (ML).. Both grid search algorithm and k-fold cross-validation were utilized to find the optimal hyperparameters. • The XGBoost, was shown to have a higher efficiency and accuracy for predicting RAC creep …
WhatsApp: +86 18221755073
1. Introduction. The rapid growth of the concrete industry has caused several environmental issues, such as the depletion of natural aggregates, overload of landfills, and CO 2 emission released to the atmosphere [1], [2], [3].One latent solution to decreasing the environmental footprint of concrete production is the reuse of …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
Three kinds of concrete mixtures were tested, concrete made with Natural Coarse Aggregate (NCA) as a control concrete and two types of concrete made with recycled coarse aggregate (50% and ...
WhatsApp: +86 18221755073
This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability …
WhatsApp: +86 18221755073
This study proposes the hybrid machine learning model combining random forest and Taguchi optimization (RF-TGC) to predict the shear strength of recycled reinforced concrete beams (RARC). For this objective, a total of 128 experimental results of shear strength of RARC beams from published papers were used to develop the …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
In recent years, machine learning algorithms have been increasingly used to predict the performance of concrete with both natural aggregates [46,47] and with recycled aggregates [4].
WhatsApp: +86 18221755073حقوق النشر والنسخ؛ 2024.Aava جميع الحقوق محفوظة.خريطة الموقع