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(PDF) AN INVESTIGATION OF ENGINEERING PROPERTIES OF …

Makaratat N, Tangchirapat W, husk ash (RHA) together with recycled coarse Jaturapitakkul C, Kiattikomol K, aggregate (RCA) on engineering properties of Siripanichgorn A.(2004), "Utilization of rice high strength concrete (HSC) was investigated husk–bark ash as a cement replacement", in this research.

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[PDF] Influence of Type and Replacement Level of Recycled ...

The study reports results of tests, using only natural aggregates, of a control concrete and nine recycled aggregate concretes. The recycled aggregates were classified according to measured specific gravity and water absorption into three different types, namely: RS II for recycled fine aggregate having 2.36 specific gravity and 5.4% water absorption; RG III for recycled coarse …

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(PDF) Influence of Cement Content on Recycled Aggregates ...

This paper forms part of a continuous study on the influence of cement content on the properties of recycled aggregates concrete. In previous study (Konin and Kouadio, 2011), the effects of …

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Influence of Recycled Construction Materials Aggregate on ...

of recycled aggregates physco-mechanical properties of concrete. The results showed that the use of recycled aggregate reduces the overall unit weight of concrete masonry units, higher thermal resistance and absorption rate than reference units. The recycled crushed clay coarse aggregate replacements in proportions 25%, 50%, 75% and were used.

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Influence of amount of recycled coarse aggregates and ...

May 01, 2007· Mechanical properties of recycled aggregate concrete. Concrete made with of recycled coarse aggregates has 20–25% less compression strength than conventional concrete at 28 days, with the same effective w/c ratio (w/c = …

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

Sep 04, 2019· The mechanical properties of recycled aggregate concrete (RAC) may be affected by the service time of parent concrete used to produce the recycled coarse aggregate (RCA), which has not been experimentally investigated. Current models primarily relate RAC elastic modulus to its compressive strength. These models cannot describe the difference in …

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Effect of nano silica on properties of concretes ...

minimal influence on the overall performance of the concrete (Kou et al., 2011; Kou and Poon, 2012; Kwan et al., 2012; Thomas et al., 2013), thus highlighting the feasibility and potential to solve the current environmental issues. Construction Materials Effect of nano silica on properties of concretes containing recycled coarse aggregates

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Green Concrete from Sustainable Recycled Coarse Aggregates ...

The influence of natural coarse aggregates replacement (50 and ) with recycled coarse aggregate on various mechanical and durability properties of hardened concrete were discussed and compared with controls at different w/c ratio.

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Betão nº 32 - Julho/Agosto 2014 by Companhia das Cores -

Sep 18, 2014· Ferreira L, de Brito J, Barra M. Influence of the pre-saturation of recycled coarse concrete aggregates on the fresh and hardened properties of concrete, Magazine of Concrete Research 2011; 63(8 ...

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Deformation and permeability of recycled aggregate ...

1 · For the mitigation of the adverse effects of these properties, we have focused on the importance of (i) different mixing approaches, (ii) addition of superplasticisers to reduce water/cement ratio (iii) incorporation of mineral admixtures, to minimise the porosity of adhered mortar and the ITZ of recycled aggregate in RAC and development of ...

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Influence of Quality and Replacement Rate of Recycled ...

Compared with natural aggregate, the content of hardening cement in recycled aggregate is larger, which leads that the water absorption of recycled aggregate is larger and its performance such as robustness is poorer. And the engineering field pays much attention to the problem of the recycled fine aggregate which can be used in the durability requirements of recycled …

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Properties of Recycled Aggregate Concrete | SpringerLink

Jun 17, 2018· Chakradhara Rao M, Bhattacharyya SK, Barai SV (2011) Influence of field recycled coarse aggregate on properties of concrete. Mater Struct 44:205–220 CrossRef Google Scholar Choi WC, Yun HD (2012) Compressive behavior of reinforced concrete columns with recycled aggregate under uniaxial loading.

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INFLUENCE OF PARTIAL REPLACEMENT OF CEMENT WITH …

3.14 Recycled Coarse Aggregate: The recycled coarse aggregate used in this investigation is obtained by crushing the tested laboratory concrete cubes. Water absorption and specific gravity of recycled coarse aggregate used in this study are 1.75 and 2.56 respectively. present can adversely affect the strength of concrete. T

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Evaluation of coarse recycled concrete aggregates effect ...

May 10, 2021· This study presented is interested to identify the influence of the use of recycled concrete aggregates (RCA) on mechanical properties (compressive strength, tensile and Modulus of elasticity), rheological properties (workability, yield stress, and plastic viscosity), and total shrinkage of concrete. Coarse ordinary aggregates (COA) are partially substituted with …

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Examining the Influence of Recycled Concrete Aggregate on ...

Apr 02, 2020· Abstract Along with the growing development of countries around the world, there are huge amounts of construction and demolition works which produce large volumes of recycled concrete aggregate (RCA) and these are increasing over the past few decades. One of the more practical ways to manage the RCA wastes is through re-using them as aggregate to produce …

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Effect of Recycled Coarse Aggregate on Concrete Properties ...

6. The percentage from Recycled coarse Aggregate that can be used in concrete is maximum 35% replacement of Recycled coarse Aggregate. References: Anonymous. 2008. Use of Recycled Aggregate in Construction. Cement Concrete and Aggregate Australia. Akbari, Y.V., Arora, N.K., Vakil, M.D. 2011. Effect on Recycled Aggregate on Concrete Properties.

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The effect of recycled concrete aggregate properties on ...

Jul 01, 2006· @article{osti_20877570, title = {The cause and influence of self-cementing properties of fine recycled concrete aggregates on the properties of unbound sub-base}, author = {Poon, C -S and Qiao, X C and Chan, Dixon}, abstractNote = {The use of coarse recycled concrete aggregates (CRCA) in conjunction with fine recycled concrete …

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Influence of polymer treatment on strength and water ...

Influence of polymer treatment on strength and water absorption capacity of recycled aggregate concrete ... Influence of field recycled coarse aggregate on properties of concrete. In: Materials and Structures. 2011, Springer, Netherlands, pp. 205-220. 10.1617/s11527-010-9620-x. 4.

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Properties of Concrete Prepared with Recycled Aggregates ...

Recycled aggregates have high water absorption and crushing index. In order to improve the properties of recycled aggregates in concrete production, various treatments were used to modify the aggregates. In recent years, bio-deposition as a new treatment method of recycled aggregates was environmentally friendly. An improved method of bio-deposition was …

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The Effect of Fine and Coarse Recycled Aggregates on Fresh ...

Today, the use of recycled aggregates as a substitute for a part of the natural aggregates in concrete production is increasing. This approach is essential because the resources for natural aggregates are decreasing in the world. In the present study, the effects of recycled concrete aggregates as a partial replacement for fine (by 50%) and coarse aggregates (by ) …

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Aug 28, 2021· [6]CHAKRADHARA RAO M, BHATTACHARYYA S K, BARAI S V. Influence of field recycled coarse aggregate on properties of concrete[J]. Materials and Structures,2011, 44(1): 205-220. [7]RICHARDSON A, COVENTRY K, BACON J. Freeze/thaw durability of concrete with recycled demolition aggregate compared to aggregate concrete [J].

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Influence of amount of recycled coarse aggregates and ...

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

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Influence of Recycled Construction Materials Aggregate on ...

The recycled aggregates used were classified into three different types according to their measured specific gravity and water absorption, namely, RG I …

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(PDF) INFLUENCE OF FINE RECYCLED CONCRETE AGGREGATE ON …

Influence of RCA on the properties of asphalt mixtures was determined on the samples ... and sieving of the recycled aggregates or from field structures. ...

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Influence of Natural Coarse Aggregate Type on the ...

AbstractThe use of recycled concrete represents an environmentally friendly solution for minimizing the impact of construction and demolition wastes. In many countries, the incorporation of …

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‪Sudhirkumar Barai‬ - ‪Google Scholar‬

Influence of field recycled coarse aggregate on properties of concrete. MC Rao, SK Bhattacharyya, SV Barai. Materials and structures 44 (1), 205-220, 2011. 376: ... Influence of incorporation of nano-silica and recycled aggregates on compressive strength and microstructure of concrete.

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ISSN 2348 – 7968 Influence of Recycled Coarse Aggregate …

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

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Influence of Surface Treatment of Recycled Aggregates on ...

For this purpose, incorporation of recycled concrete aggregate in concrete products particularly self-compacting concrete (SCC) for structural and non-structural application would be significant achievement. In this study the fresh and hardened properties of SCC prepared by substituting natural aggregates (NA) with recycled coarse aggregates (RCA).

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The cause and influence of self-cementing properties of ...

The use of coarse recycled concrete aggregates (CRCA) in conjunction with fine recycled concrete aggregates (FRCA) as sub-base materials has been widely studied. Although research results indicate that it is feasible to employ both CRCA and FRCA as granular sub-base, the influence of the unhydrated cement in the adhered mortar of the RCA on the ...

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(PDF) Influence of the amount of recycled coarse aggregate ...

Freeze–thaw resistance, mechanical and transport properties of self-consolidating concrete incorporating coarse recycled concrete aggregate By Kambiz Ramyar Physical properties and mechanical behaviour of concrete made with recycled aggregates and fly ash

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