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Influence of amount of recycled coarse aggregates and ...

2007-5-1  In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production. Four different recycled aggregate concretes were produced; made with 0%, 25%, 50% and 100% of recycled coarse aggregates, respectively. The mix proportions of the four concretes were designed in order to achieve the same compressive strengths.

Influence of amount of recycled coarse aggregates and ...

In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production. Four different recycled aggregate concretes were produced; made with 0%, 25%, 50% and 100% of recycled coarse aggregates, respectively. The mix proportions of the four concretes were designed in order to achieve the same compressive strengths.

Influence of the amount of recycled coarse aggregate in ...

2012-1-1  Recycle construction wastage is the promising way towards sustainable construction. Recycled coarse aggregate (RCA) is the most common idea, but it does not gain wide acceptance among practitioners due the adhered mortar poses which deleterious effects on the concrete.

Influence of amount of recycled coarse aggregates and ...

In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production. Four different recycled aggregate concretes were

Influence of the amount of recycled coarse aggregate in ...

Abstract Recycle construction wastage is the promising way towards sustainable construction. Recycled coarse aggregate (RCA) is the most common idea, but it does not gain wide acceptance among practitioners due the adhered mortar poses which deleterious effects on the concrete. However, a suitable concrete mix design enables the recycled aggregate concrete (RAC) to the achieve target

Influence of Amount of Recycled Coarse Aggregates and ...

TRID the TRIS and ITRD database Influence of Amount of Recycled Coarse Aggregates and Production Process on Properties of Recycled Aggregate Concrete In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production.

Influence of the amount of recycled coarse aggregate in ...

Request PDF Influence of the amount of recycled coarse aggregate in concrete design and durability properties Recycle construction wastage is the promising way towards sustainable construction.

(PDF) Influence of the amount of recycled coarse

The reduc- The major difference between natural aggregate and recycled tion effect in the uniaxial tensile strength was up to about 30% coarse aggregate (RCA) is the adhered mortar at the surface of while for elastic modulus, it was about 45% when the coarse

Influence of the incorporation of recycled coarse ...

2020-4-10  An increasing trend can be found in the influence of RCAs replacement ratio on the initial coefficient of capillary water absorption, but it inversely decreases as the quality of RCAs is improved. The chloride content and penetration depth in RAC were remarkably increased as RCA content increases and its quality decreases.

Influence of Amount of Recycled Coarse Aggregate on ...

This paper presents the experimental results of recycled aggregate concrete filled steel tube columns prepared with different amount of recycled coarse aggregate (RCA) subjected to axial loading. The recycled coarse aggregates are obtained from the earthquake waste in Sichuan. Based on the studying of the physical and mechanical properties of recycled coarse aggregate, the mechanical property ...

Influence of amount of recycled coarse aggregates and ...

2015-10-12  内容提示： Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete M. Etxeberria⁎, E. Vázquez, A. Marí, M. Barra Universitat Politécnica de Catalunya (UPC), Department of Construction Engineering, Faculty of Civil Engineering, 08034 Barcelona, Spain Received 22 December 2005; accepted 7 February 2007 Abstract In this

Influence of the amount of recycled coarse aggregate in ...

Abstract Recycle construction wastage is the promising way towards sustainable construction. Recycled coarse aggregate (RCA) is the most common idea, but it does not gain wide acceptance among practitioners due the adhered mortar poses which deleterious effects on the concrete. However, a suitable concrete mix design enables the recycled aggregate concrete (RAC) to the achieve target

Influence of the amount of recycled coarse aggregate in ...

Request PDF Influence of the amount of recycled coarse aggregate in concrete design and durability properties Recycle construction wastage is the promising way towards sustainable construction.

Influence of Amount of Recycled Coarse Aggregate on ...

This paper presents the experimental results of recycled aggregate concrete filled steel tube columns prepared with different amount of recycled coarse aggregate (RCA) subjected to axial loading. The recycled coarse aggregates are obtained from the earthquake waste in Sichuan. Based on the studying of the physical and mechanical properties of recycled coarse aggregate, the mechanical property ...

ISSN 2348 – 7968 Influence of Recycled Coarse

2015-12-16  Influence of Recycled Coarse Aggregate on some Properties of Fresh and Hardened Concrete . Legae M. Ngwenya. 1, Shodolapo Oluyemi Franklin. 2. 1 . Department of Civil Engineering, University of Botswana, Gaborone, Botswana . 2 Department of Civil Engineering, University of Botswana, Gaborone, Botswana . Abstract

[PDF] Influence of recycled coarse aggregates on ...

The use of recycled coarse aggregates leads to a high bleeding rate for high water to cement ratios. Permeability coefficients at air entry are then determined starting from capillary depression gradients. Recycled coarse aggregates do not seem to influence the air entry value which is highly dependent on the paste quality.

Influence of Moisture States of Recycled Coarse

The use of recycled aggregate to produce new concretes has become increasingly widespread, and numerous studies have demonstrated that the final product performs similarly to traditional concrete. However, construction and demolition waste (CDW) presents certain characteristics which could limit its acceptance in the construction sector due to worse performance than natural aggregates.

(PDF) Influence of the pre-saturation of recycled coarse ...

Influence of the amount of . ... masonry, and finishing) was carried out. The fine and coarse recycled aggregates were produced and evaluated in 10 different compositions. The aggregates ...

Influence of the Quality of Recycled Aggregates on the ...

2016-7-22  Four different coarse recycled aggregates, three types of coarse RCA and one coarse MRA, and one fine ceramic waste aggregates (CWA) were used in order to analyse their influence on the physical, mechanical and durability properties of HPC. The results obtained by recycled aggregate concretes were compared to those of NAC mixtures.

Influence of service time of recycled coarse aggregate on ...

2019-9-4  Recycled coarse aggregates. RACs selected in the study were gathered from three sources. One source was the 1-year-old laboratory waste concrete (collected from tested full-scale RC beams) with a w/c value of 0.45 and with a 150 mm 3 cubic compressive strength f cu150 of 37.5 MPa (called as RCA1). The other two sources were indoor slabs of 18 and 40-year-old buildings (referred to as

Influence of Amount of Recycled Coarse Aggregate on ...

This paper presents the experimental results of recycled aggregate concrete filled steel tube columns prepared with different amount of recycled coarse aggregate (RCA) subjected to axial loading. The recycled coarse aggregates are obtained from the earthquake waste in Sichuan. Based on the studying of the physical and mechanical properties of recycled coarse aggregate, the mechanical property ...

[PDF] Influence of recycled coarse aggregates on ...

The use of recycled coarse aggregates leads to a high bleeding rate for high water to cement ratios. Permeability coefficients at air entry are then determined starting from capillary depression gradients. Recycled coarse aggregates do not seem to influence the air entry value which is highly dependent on the paste quality.

Recycled Concrete Aggregates: A Review International ...

2013-3-29  Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete. Cement and Concrete Research, 37 , 735–742. Article Google Scholar

Influence of Recycled Aggregates on Mechanical

2013-2-19  Influence of Recycled Aggregates on Mechanical Properties of High Performance Concrete ... is an indication of the increased amount of energy that would be ... Mechanical properties of concrete with recycled coarse aggregate Building and Environment, Volume 42, Issue 1, January 2007, ...

INFLUENCE OF SIZE AND REPLACEMENT RATIO OF

2014-5-21  recycled concrete aggregate on the hardened concrete properties. In 2011 “ Wai Hoe Kwan et al”,[13], studied the influence of the amount of recycled coarse aggregate in concrete design and durability properties, by design five concrete mixes with target strength 250 kg/cm2, with different ratios of recycled concrete aggregate 0, 15, 30, 60

INFLUENCE OF RECYCLED AGGREGATE QUALITY

2016-5-24  One natural aggregate, two samples (RA1 RA2) of coarse recycled aggregate from recycling plant and three samples (LRA1, LRA2 LRA3) of laboratory prepared recycled aggregate were tested and used as aggregates for a new concrete. Figure 1 shows the images and compositions of

Influence of the quality of recycled aggregates on the ...

2020-10-18  1 1 Influence of the quality of recycled aggregates on the 2 mechanical and durability properties of High 3 Performance Concrete 4 Andreu GONZALEZ-COROMINAS1, Miren ETXEBERRIA1*, Chi-sun POON2 5 1.Department of Construction Engineering, Polytechnic University of Catalonia, Jordi Girona, 1-3 B1 building, Barcelona 08034, 6 Spain. 7 1* Dr. Eng. Associate professor,

Recycled Aggregates from Construction and Demolition

[11] M. Etxeberria, E. Vazquez, A. Mari, M. Barra “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete” Cement and Concrete Research, 37, 2007, pp. 735-742.

INFLUENCE OF THE INCORPORATION OF RECYCLED

recycled. The use of recycled aggregates (particularly originating from crushing concrete) in concrete is a recent approach in the reuse and recycling of CDW. In order to contribute to the knowledge about the incorporation of recycled concrete aggregates (RCA) in concrete, a research line has been developed in Instituto Superior Técnico (IST ...

Influence of bagasse ash and recycled concrete aggregate ...

Recycled concrete aggregate (RCA) was obtained by using a jaw crusher to crush rejected HS-C columns (with a compressive strength of approximately 50 MPa), as shown in Figure 4. The crushed column concrete aggregates were graded, selecting a 4.75 to 12.50 mm fraction by sieve, and used as a recycled coarse aggregate.