Recycled concrete aggregate was produced by crushing of ―old‖ concrete cubes used for compressive strength testing and one precast reinforced concrete column, which had inappropriate dimensions (Figure 1).

Based on the experimental work on recycled aggregate concrete (RAC) from different mix proportions, including recycled aggregate (RA) replacement ratios, watertocement ratios and aggregatetocement ratios, this project develops optimal design criteria for RAC.

Procedure: Compressive Strength Test of Concrete Cubes For cube test two types of specimens either cubes of 15cm X 15cm X 15cm or 10cm X 10cm x 10cm depending upon the size of aggregate are used. For most of the works cubical moulds of size 15cm x 15cm x 15cm are commonly used.

Yoonseok Shin proposed a multiple regression model (MRM) for predicting the compressive strength of recycled aggregate concrete (RAC) and the results show that it is useful for predicting the compressive strength of RAC [19] .

Compressive Strength and Curing Time Relationship for Recycled Aggregate Concrete Table 5 shows the relationship between the RAC average compressive strengths and the curing time after 7, 14, and 28 days. The results show that there is a continuous increase in compressive strength as the concrete ...

91day compressive strength of concrete having recycled fine aggregate with a replacement level below 50% was similar to that of concrete with only natural aggregates

Abstract. In order to study the basic mechanical properties of basalt fiber reinforced recycled aggregate concrete, the concrete mix ratio, the length and the volume mixing ratio of chopped basalt fiber yarn are designed for changing factors.

Prediction of Compressive Strength of Recycled Aggregate Concrete using LASSO Arif Cekic1* and Jale Tezcan2 1IntertekPSI, ... was ranked. Analysis results indicate that the watertocement ratio is the strongest predictor of the compressive strength, followed by temperature, replacement ... strength of recycled aggregate concrete, the method ...

Neural Network, Statistical Analysis, Recycled Concrete, Construction 3D 1. Introduction Construction 3D ... compressive strength of recycled aggregate concrete 12]. Analysis was con [ducted to study the practicability of using the ANN theoretical model as prediction tool. The results showed that one hidden layer back ...

Use of Recycled Aggregate Concrete ... concrete properties like compressive strength, flexural strength, workability etc. are explained here for different ... cement could be offset by the lower cost of Recycled Concrete Aggregate (RCA). 20% cement replaced by fly .

A second study using recycled concrete aggregate from a demolished airport also found that as the percentage of recycled aggregates is increased, the strength of the resulting concrete .

Compressive Strength Analysis of Concrete made with Demolished Aggregate within acceptable strain limit of Concrete. Introduction Concrete used for residential purposes is .

The type of coarse aggregate in the concrete also significantly affects the compressive/tensile strength relationship. All other things being equal, concrete made with rounded aggregate will have lower tensile strength than concrete made with crushed aggregate.

A Statistical Study on the Compressive Strength of Recycled Aggregate Concrete ... compressive strength of the concrete rubble is about 37MPa (Xiao, et al., 2008). The natural aggregate is ... Test results and statistical analysis . Statistical parameters of the tested compressive strength .

The Estimation of Compressive Strength of Normal and Recycled Aggregate Concrete 421 watercement ratio) concrete mixtures explanation is different.

modulus and compressive strength of recycled aggregate concrete. Keywords: ... cement to fly ash are presented in Figure 1 and an equation is obtained by regression analysis. Similarly, in Figure 2, the relationship between elastic modulus and 28 days compressive ... aggregate concrete and natural aggregate concrete. Compressive strength of RAC ...

b Committee of Recycled Aggregate Concrete, Civil Engineering Society, China Jianzhuang Xiao: jzx Long Li: lilong_ ... compressive strength, elastic modulus and stressstrain relationship. Studies on the ... stress distribution characteristic of the MRAC under uniaxial compression by mesolevel numerical analysis. The ...

This paper presents a statistical analysis of the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) coming from one single source.

recycled concrete aggregate (RCA) in field implementations (Surya 2013). RCA is mostly being used in granular bases, embankments, sound barriers, fills, and so on.

in compressive strength, admixture material mixing, recycled aggregate mixing, and the amount of binder on environmental impact in a quantitative manner. The environmental impact assessment on

When the researcher used 0% of Recycled Concrete Aggregate the value of flexural strength was N/, when the researcher added percentage of Recycled Aggregate to 35%, the result of flexural strength were decrease and the result were decrease again when the researcher added Recycled Aggregate into 50%.

absorption), primary and recycled, coarse and fine, and alternatively the 7day compressive strength of concrete made with those aggregates. The methodology is validated, based on a graphical analysis of the most important properties of hardened

concrete utilizing waster tire rubber has been investigated. Recycled waste tire rubber has been used in this study to replace the fine and coarse aggregate by weight using different percentages.

aggregate concrete and increases as the percent of recycled aggregate decreases . The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is

Testing and analysis of axially loaded normalstrength recycled aggregate concrete filled steel tubular stub columns Yuyin Wanga,b,⇑, Jie Chenb, Yue Genga,b a Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education (Harbin Institute of Technology), Harbin 150090, China bSchool of Civil Engineering, Harbin Institute of Technology, Heilongjiang, Harbin 150090, China