• Use of recycled concrete aggregate in concrete: a review ...

    (2013). Use of recycled concrete aggregate in concrete: a review. Journal of Civil Engineering and Management: Vol. 19, No. 6, pp. 796-810.

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  • Review Article ASSESSMENT OF RECYCLED AGGREGATE CONCRETE

    recycled fine aggregate and recycled coarse aggregate. It also compares these properties with natural aggregates. Basic changes in all aggregate properties were determined and their effects on concreting work were discussed at length. Similarly the properties of recycled aggregate concrete were also determined and explained here.

  • Recycled Concrete Aggregate - an overview ScienceDirect ...

    Recycled concrete aggregate (RCA) is the designation used in BS 8500-2 for recycled aggregate principally comprising crushed concrete. Designations of recycled aggregate other than RCA are of lower quality and may contain significant quantities of masonry which would preclude or limit their use in structural concrete.

  • (PDF) Use of recycled concrete aggregate in concrete: A review

    Use of recycled concrete aggregate in concrete: A review Article (PDF Available) in Journal of Civil Engineering and Management 19(6):796-810 December 2013 with 11,517 Reads How we

  • Recycled Aggregate - an overview ScienceDirect Topics

    The use of recycled aggregate, in general terms, causes a reduction in concrete strength (Poon, Shui, Lam, Fok, Kou, 2004) and elastic modulus, larger creep, and shrinkage deformations (Domingo-Cabo et al., 2009), as well as higher permeability of the concrete (Gómez-Soberón, 2002). In sum, concrete produced with RCA is generally of lower ...

  • Effect of Recycled Coarse Aggregate on Concrete Properties ...

    Abstract. This research was conducted with the use of recycled aggregate as modification. In terms of the use of recycled aggregate, the percentage of recycled aggregate should be determined because the strength of concrete would not be obtained by the high percentage of recycled aggregate.The scope of study is about comparison between recycle coarse aggregate and natural aggregate in

  • Use Of Recycled Aggregate In Concrete – IJERT

    Use of Recycled Aggregate in ConcreteWorking Sub-Group on Construction and Demolition WasteGovernment and ULB (Urban Services Ltd.) InitiativesRelevant Rules and GuidelinesInferences from Table Nos. 2 3-BY Mr. Tushar R Sonawane RESEARCH GRADUATE MAEERS MIT PUNE, Prof. Dr. Sunil S. Pimplikar H. O. D. CIVIL ENGG. DEPARTMENT, MAEERS MIT PUNE. ABSTRACT Use of recycled aggregate in concrete can be useful for environmental protection. Recycled aggregates are the materials for the future. The application of recycled aggregate has been started in a large number of construction projects of many European, American, Russian and Asian countries. Many countries are giving infrastructural law
  • Suitability Investigation of Recycled Concrete Aggregates ...

    AbstractIntroductionRecent Advances in Recycling Concrete WasteExperimental ProgramResults and DiscussionConclusionsData AvailabilityAcknowledgmentsIn developing countries, construction and demolition waste (CDW) is disposed to landfill, causing social, environmental, and economic crises. In these nations, CDW exponentially increase due to their rapid economic growth, industrialization, and urbanization. This paper aims to examine the possibility of recycling concrete waste for production of new concrete in Ethiopia. Physical and mechanical characteristics of recycled concrete aggregate (RCA) acquired from concrete waste are thoroughly exa
  • Recycled Concrete as Aggregate for Structural Concrete ...

    Information about the open-access article 'Recycled Concrete as Aggregate for Structural Concrete Production' in DOAJ. DOAJ is an online directory that indexes and provides access to quality open access, peer-reviewed journals.

  • Special Issue "New Trends in Recycled Aggregate Concrete"

    Residual mortar attached to recycled concrete aggregate (RCA) always leads to a decrease in Young’s modulus and an increase in the drying shrinkage of RCA concrete, mainly due to an increase of total mortar volume. ... The statements, opinions and data contained in the journals are solely those of the individual authors and contributors and ...

  • Seismic Performance of Interior and Exterior Beam–Column ...

    3/3/2019  However, only a few experimental tests have been conducted on recycled aggregate concrete (RAC) beam–column joints. This paper presents an experimental investigation of the seismic behavior of various types of RAC beam–column joints.

  • Properties of Self-Compacting Concrete with Recycled ...

    The utilisation of recycled concrete aggregate (RCA) in Self-Compacting Concrete (SCC) has the potential to reduce both the environmental impact and financial cost associated with this increasingly popular concrete type. However, to date limited research exists exploring the use of coarse RCA in SCC. The work presented in this paper seeks to build on the existing knowledge in this area by ...

  • Recycled Concrete as Aggregate for Structural Concrete ...

    Information about the open-access article 'Recycled Concrete as Aggregate for Structural Concrete Production' in DOAJ. DOAJ is an online directory that indexes and provides access to quality open access, peer-reviewed journals.

  • Recycled Aggregate Self-curing High-strength Concrete ...

    The hardened concrete properties are discussed in terms of compressive, splitting tensile, flexure and bond strengths. The obtained results show that, the using of water reducer admixture enhances the main fresh and hardened properties of self-curing high-strength concrete cast using recycled aggregate.

  • Recycled Concrete Aggregates: A Review SpringerLink

    3/29/2013  After demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1).This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the mortar is separated from the

  • Recycled Concrete—A Source for New Aggregate

    7/1/1984  The recycled aggregate concrete showed somewhat better workability characteristics than conventional mixes although its modulus of elasticity and durability characteristics were lower. It is proposed that satisfactory concrete can be made by recycling concrete as aggregate where disposal problems exist or where natural aggregate is either ...

  • recycled concrete Topic

    7/1/2020  Recycled Concrete. Definition: hardened concrete that has been processed for reuse, usually as aggregate.- ACI Concrete Terminology. The reason for recycling is the reduction of waste in order to protect nature against pollution, the increasing shortage of suitable dumping grounds, and to save energy and natural resources.

  • Recycled Plastics as Coarse Aggregate for Structural Concrete

    Keywords: Coarse aggregate, plastic aggregate, partial replacement, volumetric substitution, grade substitution. I. INTRODUCTION: Concrete is the most widely used man made construction material in the world and its second only to water as the most utilized substance in the planet.

  • (PDF) Production of Recycled Plastic Aggregates and Its ...

    A novel aggregate (RPA) comprising recycled plastic was developed. The aggregate produced was lightweight, with a density ranging from 510 to 750k kg/m³ and absorption of from 2.7 to 9.81%.

  • Self Compacting Concrete with Recycled Coarse Aggregates

    CA20) and recycled aggregate from 15 year old concrete building. MasterGlenium SKY 8233 was used as . International Journal of Engineering Research Technology (IJERT) IJERTIJERT ISSN: 2278-0181 IJERTV3IS090092 ijert.org (This work is licensed under a Creative Commons Attribution 4.0 International License.) Vol. 3 Issue 9, September- 2014

  • Strength and Durability Evaluation of Recycled Aggregate ...

    5/14/2015  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 of concrete.

  • Recycled Aggregates - Portland Cement Association

    According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete. The states that do use recycled concrete aggregate (RCA) in new concrete report that concrete with RCA performs equal to concrete with natural aggregates.

  • Use Of Recycled Coarse Aggregate In Concrete, IJSR ...

    Use Of Recycled Coarse Aggregate In Concrete,IJSR - International Journal of Scientific Research(IJSR), IJSR is a double reviewed monthly print journal that accepts research works. 36572+ Manuscript submission, 9855+ Research Paper Published, 100+ Articles from over 100 Countries

  • PROPERTIES OF RECYCLED AGGREGATE CONCRETE

    the recycled aggregate comes from many different sources, the uneven quality, i.e. variations in the properties of recycled aggregate are much more pro-nounced than as is the case with natural aggregates. Figure 2. Appearance of the recycled aggregate grains [2] 2.1. Aggregate grading Grading of recycled coarse aggregate

  • Sustainability of Using Recycled Concrete ... - SAGE Journals

    Using Recycled Concrete as Aggregate in Concrete Pavements to Reduce Materials Cost. Report No. FHWA/IN/JTRP-2013/18. Joint Transportation Research Program, Indiana Department of Transportation and Purdue University , West Lafayette, IN , 2013 .

  • Neutralization of high pH and alkalinity effluent from ...

    Use of recycled concrete aggregate (RCA) as highway basecourse material conserves virgin aggregate, reduces energy consumption and CO 2 emissions, and may also decrease costs during construction. However, concerns remain over possible negative environmental impacts associated with high pH (>11) effluent from RCA in contact with water.

  • Coated Recycled Aggregate Concrete Exposed To Elevated ...

    of both natural aggregate concrete and recycled aggregate concrete.Flyash addition modifies the microstructure of the interfacial zone which leads to a better performance of the concrete. Similar results are also reported in other different literature [5,6]. Fig 1 : Comparison of intruded mercury volume vs pore diameter curve for recycled ...

  • Stress-Strain Behavior of FRP-Confined Recycled Aggregate ...

    6/3/2015  A large amount of research has been conducted on recycled aggregate concrete (RAC) due to its social, environmental, and economic significance. However, the in situ application of RAC has so far been mainly limited to nonstructural purposes, as the performance of RAC, in both the short and long term, is inferior to its normal concrete counterpart.

  • Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm Shift

    The extensive research on recycled concrete aggregate and recycled aggregate concrete (RAC) as started from year 1945 in various part of the world after second world war, but in a fragmented manner. First effort has been made by Nixon in 1977 who complied all the work on recycled aggregate carried out between 1945-1977 and prepared a state-of ...

  • Improving the structural behaviour RC precast concrete ...

    AbstractThe application of concrete waste for recycled aggregate concrete (RAC) used in structural members is associated with an increased risk for the structure due to, e.g. pollutions in the old crushed concrete and random variable strength. A new concept of RC flexural members like beams and slabs made of RAC with strengthening inclusion was elaborated and presented in the paper based on ...

  • Sustainability of Using Recycled Concrete ... - SAGE Journals

    Using Recycled Concrete as Aggregate in Concrete Pavements to Reduce Materials Cost. Report No. FHWA/IN/JTRP-2013/18. Joint Transportation Research Program, Indiana Department of Transportation and Purdue University , West Lafayette, IN , 2013 .

  • Coated Recycled Aggregate Concrete Exposed To Elevated ...

    of both natural aggregate concrete and recycled aggregate concrete.Flyash addition modifies the microstructure of the interfacial zone which leads to a better performance of the concrete. Similar results are also reported in other different literature [5,6]. Fig 1 : Comparison of intruded mercury volume vs pore diameter curve for recycled ...

  • Studies on recycled aggregates-based concrete - Major ...

    Grubl, P. Ruhl, M. (1998) German Committee for Reinforced Concrete (DAfStb) - Code: Concrete with Recycled Aggregates. In: International Symposium on Sustainable Construction: Use of Recycled Coarse Aggregate, University of Dundee, Concrete Technology Unit, London (UK), 11-12 Nov. 1998.

  • International Journal of Engineering Trends and Technology ...

    The Cost of Recycled Concrete Aggregate may be less than 20 to 30 % less than natural aggregate in some regions[1]. By using the recycled aggregate the consumption of natural aggregate can be reduced. Indian construction industry today is amongst the five largest in the world and at the current rate of growth, it is slated to be amongst the top ...

  • Recycled Concrete as an Alternative Coarse Aggregate for ...

    Also, this investigation determined whether there is a significant difference in flexural strength between concrete with recycled concrete and that with gravel as coarse aggregates. Experimental design was the method implemented and this involved four sets of

  • Mechanical Properties Of Recycled Aggregates Concrete

    2.6 Recycled Concrete as Aggregate for Structural Concrete Production. A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper.

  • Microstructural Characterization of Concrete Prepared with ...

    5/15/2013  This work studies the use of fine recycled aggregate to replace fine natural aggregate in the production of concrete and reports the resulting microstructures. The used raw materials were natural aggregate, recycled aggregate obtained from a standard concrete, and Portland cement.

  • CONCRETE WITH RECYCLED CONCRETE AGGREGATE

    10.5555/books books Thomas Telford Publishing 10.1680/scuorca.27268 Sustainable Construction: Use of Recycled Concrete Aggregate Sustainable Construction: Use of Recycled Concrete Aggregate Proceedings of the International Symposium organised by the Concrete Technology Unit, University of Dundee and held at the Department of Trade and Industry Conference Centre, London, UK on 11 – 12 ...

  • Recycled Aggregate - CalRecycle Home Page

    Recycled aggregate is produced by crushing concrete, and sometimes asphalt, to reclaim the aggregate. Recycled aggregate can be used for many purposes. The primary market is road base. For information on recycling asphalt pavement into new asphalt pavement. See Asphalt Pavement Recycling.

  • Indian Concrete Journal

    A study on the use of construction and demolition waste as coarse aggregate in self-compacting concrete for sustainability S. Girish, N. Ajay, Sasha Azimi View Abstract ; Mechanical properties and permeability of pervious concrete made with recycled concrete aggregates Shoukai Chen, Zhengnan Zhang, Jialin Chen, Yajing Bie View Abstract