### Prediction of the Compressive Strength of Recycled ...

Jul 14, 2021 Recycled aggregate concrete (RAC), due to its high porosity and the residual cement and mortar on its surface, exhibits weaker strength than common concrete. To guarantee the safe use of RAC, a compressive strength prediction model based on artificial ...

### Prediction of compressive strength of recycled aggregate ...

Mar 01, 2013 The ANN model, run in a Matlab platform, was used to predict the compressive strength of the recycled aggregate concrete. The results show that ANN has good potential to be used as a tool for predicting the compressive strength of recycled aggregate concrete prepared with varying types and sources of recycled aggregates.

### Prediction of compressive strength of recycled aggregate ...

Mar 01, 2021 Most studies have focused on the properties of recycled aggregate concrete (RAC) , , , , while no extensive studies have been carried out on the prediction of the compressive strength of RAC. The variability in compressive strength of RAC is a main

### Experimental Study of Compressive Strength of Recycled ...

Apr 25, 2014 Total four concrete mix batches were tested in which one mix was of normal aggregate concrete at 0% replaced by RCA and other are of Recycled aggregate concrete at 20%, 40% and 60% replaced by RCA. The result of the test are shown in the table 1.The compressive strength of the specimens was calculated by following formula.

### Study of recycled concrete aggregate quality and its ...

Study of recycled concrete aggregate quality and its relationship with recycled concrete compressive strength using database analysis • 3. Materiales de Construcción 66 (323), July–September 2016, e089.

### Study on compressive strength of recycled aggregate concrete

Nevertheless, the compressive strength of recycled aggregate concrete can achieve the target compressive strength by adjusting the mw/mc ratio. Finally, based on

### Artificial Neural Networks for Prediction of Compressive ...

Artificial Neural Networks for Prediction of Compressive Strength of Recycled Aggregate Concrete Kirtikanta Sahoo, P. Sarkar, and Robin Davis P. Abstract— For this data sets are collected and compared with each . Recycled coarse aggregates (RCA) are different in properties and composition than natural coarse aggregate. So it is

### Artificial neural networks for prediction of compressive ...

National Institute of Technology Rourkela strength of the concrete, resulting in lower concrete strength. Odisha,769008, India [email protected] account the results of a study to evaluate whether or not the compressive strength of concrete made with different types and sources of recycled aggregates can be predicted by regression analysis.

### Performance of Recycled Aggregate Concrete

aggregate concrete ,the slump test was about 1.0cm slump for 60 % coarse recycled aggregate concrete and increases as the percent of recycled aggregate decreases . The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is about 76 % of natural aggregate concrete. The compressive strength increases as the

### Treatment of recycled concrete aggregate to enhance ...

Relationship between the tensile and compressive strength of recycled aggregate concrete. The relationship proposed in EC2 is followed by recycled aggregate and conventional concretes. a

### Residual Compressive Strength of Recycled Aggregate ...

Compressive strength and capillary water absorption tests were made after heating, and the experiments showed higher residual strength in concretes with the greatest content of recycled aggregates. However, a statistical analysis made with additional data available in the literature seemed to predict otherwise, and the recycled aggregate ...

### Study of recycled concrete aggregate quality and its ...

Study of recycled concrete aggregate quality and its relationship with recycled concrete compressive strength using database analysis • 3. Materiales de Construcción 66 (323), July–September 2016, e089.

### Prediction of Compressive Strength of General-Use Concrete ...

Jun 07, 2021 A new model based on multiple linear regression analysis of the data from this study and other 14 studies from the literature was developed. The model can be used to predict the compressive strength of general-use concrete mixes with recycled aggregate (20–40 MPa) considering both the recycled aggregate content and the curing age of concrete.

### Predicting Compressive Strength of Recycled Aggregate ...

A total of 27 concrete mixtures with three replicates were considered by varying the levels of key factors affecting compressive strength of concrete, namely, w/c ratio, recycled coarse /natural coarse aggregate ratio, and recycled fine/ natural fine aggregate ratio .The experimental data were utilized to carry out analysis of variance (ANOVA ...

### Artificial Neural Networks for Prediction of Compressive ...

Artificial Neural Networks for Prediction of Compressive Strength of Recycled Aggregate Concrete Kirtikanta Sahoo, P. Sarkar, and Robin Davis P. Abstract— For this data sets are collected and compared with each . Recycled coarse aggregates (RCA) are different in properties and composition than natural coarse aggregate. So it is

### A study on slump and compressive strength of recycled ...

A series of tests were carried out to determine the density, compressive strength, split tensile strength, flexural strength and modulus of elasticity of concrete with and without recycled aggregates.

### Microstructural Analysis of Recycled Aggregate Concrete

Microstructural Analysis of Recycled Aggregate Concrete ... levels of replacement reduces the compressive strength. Fig.1 Recycled aggregates The construction industry contributes substantially to the generation of solid waste in most the countries. In North America the event and demolition waste contributes around 25 – 40% of the

### The Biaxial Compressive Mechanical Properties and Strength ...

Oct 26, 2020 The uniaxial and biaxial compressive strength depends on the strain rates, the stress ratios, and the substitution percentages of RCA of recycled aggregate concrete. The failure modes of RAC under uniaxial and biaxial compression are prism-type and parallel plate-type, respectively.

### Time-dependent reliability analysis of recycled aggregate ...

Therefore, appropriately increasing the strength of concrete and the reinforcement ratio at the same time is a feasible method, such as increasing the reinforcement ratio by 1.0% and compressive strength by 5.0 MPa or increasing the reinforcement ratio by 2.0% and compressive strength by 3.0 MPa can both make the target RAC beams in this study ...

### Experimental Study on Compressive Strength of Recycled ...

摘要： Compressive strengths of recycled aggregate concrete with different recycled aggregates replacement ratios at 7 d,28 d,60 d ages are investigated respectively.Failure process and failure mode of RAC are analyzed.The influences on compressive strength with same mix ratio and different RA replacement ratios are also analyzed.And the reason is investigated in this paper.The experimental ...

### Shear strength of plain concrete made of recycled low ...

90 push-off specimens were tested to investigate shear strength of plain concrete. • Variables in tests were type of coarse aggregates (recycled concrete, natural) and w/cm.. Lower w/cm ratios increased shear and compressive strengths of all concretes.. Normalized push-off shear strength factor was similar in NAC and RAC.

### Effect of fly ash on compressive strength of concrete ...

Sep 21, 2018 Concrete specimens are tested after curing at 28 days. Compressive strength results are then used for multiple linear regression by using SPSS version 22 software to get an empirical formula between the compressive strength and percentage of recycled coarse aggregate, the percentage of fly ash and water-cement ratios.

### (PDF) Evaluation of Industrial By-Products as Sustainable ...

Evaluation of Industrial By-Products as Sustainable Pozzolanic Materials in Recycled Aggregate Concrete. sustainability, 2017. Mamoun Alqedra. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

### Treatment of recycled concrete aggregate to enhance ...

Relationship between the tensile and compressive strength of recycled aggregate concrete. The relationship proposed in EC2 is followed by recycled aggregate and conventional concretes. a

### (PDF) Compressive strength of recycled aggregate concrete ...

Compressive strength is the basic mechanical properties and one of the indicators to determine the performance of a concrete. In this paper, the effects of various percentages (0%, 25%, 50%, 75% ...

### Study on compressive strength of recycled aggregate concrete

Nevertheless, the compressive strength of recycled aggregate concrete can achieve the target compressive strength by adjusting the mw/mc ratio. Finally, based on

### Prediction of the Compressive Strength of Recycled ...

Recycled aggregate concrete (RAC), due to its high porosity and the residual cement and mortar on its surface, exhibits weaker strength than common concrete. To guarantee the safe use of RAC, a compressive strength prediction model based on artificial neural network (ANN) was built in this paper, which can be applied to predict the RAC compressive strength for 28 days. A data set containing 88 ...

### Prediction of the Compressive Strength of Recycled ...

However, most studies lay emphasis on the prediction of compressive strength of ordinary concrete and concrete containing blast furnace slag (BFS) and fly ash (FA). Thus, we predict the compressive strength of recycled aggregate concrete by means of ANN, a machine learning method.

### COMPRESSIVE STRENGTH PREDICTION OF RECYCLED AGGREGATE ...

Corpus ID: 237248054. COMPRESSIVE STRENGTH PREDICTION OF RECYCLED AGGREGATE CONCRETE BY ARTIFICIAL NEURAL NETWORK @inproceedings{Ly2021COMPRESSIVESP, title={COMPRESSIVE STRENGTH PREDICTION OF RECYCLED AGGREGATE CONCRETE BY ARTIFICIAL NEURAL NETWORK}, author={Hai-Bang Ly and Thuy Anh Nguyen and Hai-Van Thi

### Predicting Compressive Strength of Recycled Concrete for ...

Artificial neural network (ANN) has good potential to be used as a tool for predicting the compressive strength of recycled aggregate concrete [12] . Analysis was conducted to study the practicability of using the ANN theoretical model as prediction tool.

### The Use of Machine Learning Models in Estimating the ...

compressive strength of recycled aggregate concrete. Predicting the compressive strength of concrete containing red ceramic and other recycled materials for all ages of 3, 7, 28, and 91 days is the scope of the study performed by Dantas et al. 2013 [18], in which the aim was successfully achieved using the ANN techniques.

### Mechanical Properties and Durability of Recycled Aggregate ...

Jun 30, 2021 The compressive strength values of the recycled aggregate permeable concrete under different water-cement ratios and recycled aggregate replacement rates were measured and calculated to determine the relationship between water-cement ratio, recycled aggregate replacement rate, and compressive strength.

### Investigating the Effect of Sulfate Attack on Compressive ...

of compressive strength at 28 days using (0%, 30%, 60% and 100%) recycled aggregate are (330, 280, 266 and 244) Kg/cm2 respectively, with reduction in compressive strength was (15.2%, 19.4% and 26%) for replacement ratio (30%, 60% and 100%) respectively. MgSO4 solution has an effect on compressive strength after 90 days of

### Performance of Recycled Aggregate Concrete

aggregate concrete ,the slump test was about 1.0cm slump for 60 % coarse recycled aggregate concrete and increases as the percent of recycled aggregate decreases . The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is about 76 % of natural aggregate concrete. The compressive strength increases as the

### Experimental Study on Compressive Strength of Recycled ...

摘要： Compressive strengths of recycled aggregate concrete with different recycled aggregates replacement ratios at 7 d,28 d,60 d ages are investigated respectively.Failure process and failure mode of RAC are analyzed.The influences on compressive strength with same mix ratio and different RA replacement ratios are also analyzed.And the reason is investigated in this paper.The experimental ...

### Artificial Neural Networks for Prediction of Compressive ...

Artificial Neural Networks for Prediction of Compressive Strength of Recycled Aggregate Concrete Kirtikanta Sahoo, P. Sarkar, and Robin Davis P. Abstract— For this data sets are collected and compared with each . Recycled coarse aggregates (RCA) are different in properties and composition than natural coarse aggregate. So it is

### A review of the research and application progress of new ...

Yan et al. conducted an experimental study on the axial compression performance of flax FRP tube-confined recycled aggregate concrete (RAC) columns including partially recycled clay brick aggregate (RCBA), where the recycled coarse aggregate used in the tests replaced 70% of the natural coarse aggregate, including 60% of recycled clay brick ...

### Predicting Compressive Strength of Recycled Aggregate ...

Today, efforts are underway in a number of areas to conserve the environment and protect natural resource. In the construction industry, many researchers have studied the development of new concrete using recycled aggregate (RA). This research proposes a multiple regression model (MRM) for predicting the compressive strength of recycled aggregate concrete (RAC).

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