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Scholarly Article On Concrete Aggregate

  • Mechanical and fracture properties of concrete containing

    Jun 10, 2019· Studies indicate that the use of simple Recycled Concrete Aggregate (RCA) can also cause some problems such as increasing pH of surrounding water resources which may also damage the nearby plants. The usage of RCA in concrete pavement can be one of the practical ways to eliminate all potential environmental problems.

  • Cited by: 26
  • 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
  • Effect of Recycled Concrete Aggregate Properties on

    This study focuses on characterizing several recycled concrete aggregate (RCA) sources, developing concrete mixture proportions that incorporate RCA as coarse aggregate, and investigating the effect of coarse aggregate properties on the main mixture proportion parameters [i.e., cement content, water demand, and water–cement (w/c) ratio].

  • Cited by: 7
  • Comparative LCA of concrete with recycled aggregates: a

    Aug 06, 2020· Results show that the concrete with 25% recycled aggregates is the best solution from an environmental point of view. Furthermore, geopolymer mixtures could be a valid alternative to reduce the phenomenon of “ global warming ”; however, the production of sodium silicate and sodium hydroxide has a great environmental impact.

  • Author: Francesco Colangelo, Tomás Gómez Navarro, Ilenia Farina, Antonella Petrillo
  • Lightweight Concrete with Aggregates Made by Using

    DOI: 10.5755/J01.SACE.4.5.4188 Corpus ID: 55137418. Lightweight Concrete with Aggregates Made by Using Industrial Waste @article{Bajre2013LightweightCW, title={Lightweight Concrete with Aggregates Made by Using Industrial Waste}, author={D. Bajāre and Jānis Kazjonovs and A. Korjakins}, journal={Journal of Sustainable Architecture and Civil Engineering}, year={2013}, volume={4},

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

    Abstract and Figures The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it.

  • Manufacturing Light Concrete with PET Aggregate

    Abstract The manufacture of concrete using a polymer instead of a stony coarse aggregate known as gravel is presented. Polyethylene terephthalate (PET) is the polymer used, recycling soft drink containers with sufficient tenacity. PET is a material commonly used by

  • EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

    to make high-strength concrete, it is easier to do so with coarse aggregates below 12.5 mm (Y, in.) (ACI 363-95). There has not been much research on the effects of coarse aggregate content

  • Concrete List of High Impact Articles PPts Journals

    Concrete is a mixture of paste and aggregates, or rocks. The paste, composed of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Related journals of Concrete: International Journal of Concrete Structures and Materials, The Indian concretye journal, Cement and Concrete Research, Journal of advanced concrete technology, Science and

  • Google Scholar

    Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

  • Effect of Recycled Concrete Aggregate Properties on

    This study focuses on characterizing several recycled concrete aggregate (RCA) sources, developing concrete mixture proportions that incorporate RCA as coarse aggregate, and investigating the effect of coarse aggregate properties on the main mixture proportion parameters [i.e., cement content, water demand, and water–cement (w/c) ratio].

  • Effects of Aggregate Types on the Stress-Strain Behavior

    1. Introduction. Lightweight concrete is generally defined as concrete made of ordinary Portland cement (OPC), water, river sand (or lightweight sand), and lightweight coarse aggregates, and its density is typically below to 1950 kg/m 3 .Consider the growing demand, including high-rise buildings, large-span concrete structures, and floating structures, lightweight concrete that is made by

  • Frontiers Seismic Performance of Recycled Concrete

    The recycling or reuse of waste concrete can effectively mitigate this problem and has attracted a great deal of scholarly attention accordingly. Recycled concrete (RC), usually called recycled aggregate concrete, is a coarse aggregate material composed partially or completely from crushed waste concrete as a replacement for the nature coarse

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

    The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for

  • Recycled Concrete Aggregates: A Review International

    Mar 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

  • Materials Free Full-Text Improvement of the Durability

    The use of recycled masonry aggregate for concrete is mostly limited by the worse properties in comparison with natural aggregate. For these reasons it is necessary to find ways to improve the quality of recycled masonry aggregate concrete and make it more durable. One possibility is utilization of crystalline admixture which was verified in this study by laboratory measurements of key

  • Concrete-Based and Mixed Waste Aggregates in Rendering Mortars

    This paper presents a study of incorporation of two types of construction and demolition waste (CDW) in rendering mortars, as aggregates at 0%, 20%, 50% and 100% (by volume). Recycled concrete aggregate (RCA) and mixed recycled aggregate (MRA) were used. The former is mainly composed of cementitious waste and the latter consists of a mixture of non-segregated wastes.

  • Review Article ASSESSMENT OF RECYCLED AGGREGATE

    Basic concrete properties like compressive strength, flexural strength, workability etc are explained here for different combinations of recycled aggregate with natural aggregate. Codal guidelines of recycled aggregates concrete in various countries were stated here with their effects, on concreting work. In general, present status of

  • Properties of concrete made with crushed concrete as

    Tests on the aggregates showed that the recycled concrete aggregates have lower specific gravity and higher absorption capacity than the original crushed granite aggregate. The resistance to mechanical actions such as impact, crushing and abrasion for the recycled concrete aggregates is also lower. The effects of using recycled concrete

  • Synergistic effect of steel fibres and coarse aggregates

    The tensile splitting and compressive strengths of concrete samples are tested, three specimens for each mixture, in accordance with EN 12390-6: 2009 and EN 12390-3: 2009 , respectively.Fresh concrete is cast into moulds (150 × 150 × 150 mm 3) and demoulded after 1 day.After that, the samples are cured in water (around 20 °C) for another 27 days before testing.

  • aggregate Topic American Concrete Institute

    Nov 30, 2020· Aggregates are the major constituent (ingredient) in concrete, making up 60% to 70% of the volume of concrete. Aggregates influence the workability of plastic concrete and also the durability, strength, thermal properties, and density of hardened concrete. Particle size divides aggregates into two categories: fine and coarse. Most fine aggregates are sand and contain particles smaller than 3/8

  • Mix Design for Pervious Recycled Aggregate Concrete

    Nov 27, 2012· Pervious concrete is a tailored-property concrete with high water permeability which allow the passage of water to flow through easily through the existing interconnected large pore structure. This paper reports the results of an experimental investigation into the development of pervious concrete with reduced cement content and recycled concrete aggregate for sustainable permeable pavement

  • ASTM International Cement, Concrete and Aggregates

    About this Journal. Cement, Concrete & Aggregates 1979-2004 Backfile deals with the properties of concrete and its constituent materials (e.g., mechanical properties, durability, and cement). New developments in control testing, evaluation, and standardization of such properties.

  • Effect of Paste-Aggregate Bond Strength on Behavior of

    Coarse aggregate was coated with a thin layer of polystyrene to reduce paste-aggregate bond strength. The resulting concrete was compared to concrete containing uncoated control aggregate for strength, stiffness, and type and amount of microcracking. Environmental & Architectural Engineering Scholarly Works [88] Citation.

  • aggregate Topic American Concrete Institute

    Nov 30, 2020· Aggregates are the major constituent (ingredient) in concrete, making up 60% to 70% of the volume of concrete. Aggregates influence the workability of plastic concrete and also the durability, strength, thermal properties, and density of hardened concrete. Particle size divides aggregates into two categories: fine and coarse. Most fine aggregates are sand and contain particles smaller than 3/8

  • Frontiers Seismic Performance of Recycled Concrete

    The recycling or reuse of waste concrete can effectively mitigate this problem and has attracted a great deal of scholarly attention accordingly. Recycled concrete (RC), usually called recycled aggregate concrete, is a coarse aggregate material composed partially or completely from crushed waste concrete as a replacement for the nature coarse

  • Properties of Non-Structural Concrete Made with Mixed

    1. Introduction. Most of the CO 2-equivalent produced to manufacture concrete comes from cement production; over 400 kg of CO 2-equivalent is generated per m 3 of concrete [1,2], and is also responsible for 5% of all anthropogenic CO 2 emissions .In the European Union, 900 million tonnes of cement were produced in 2008 .In the same year, CO 2 equivalent emissions reached 101 million

  • Review Article ASSESSMENT OF RECYCLED AGGREGATE

    Basic concrete properties like compressive strength, flexural strength, workability etc are explained here for different combinations of recycled aggregate with natural aggregate. Codal guidelines of recycled aggregates concrete in various countries were stated here with their effects, on concreting work. In general, present status of

  • Effect of recycled coarse aggregate journals.sagepub

    Ajdukiewicz, AB, Kliszczewicz, AT (2007) Comparative tests of beams and columns made of recycled aggregate concrete and natural aggregate concrete. Journal of Advanced Concrete Technology 5(2): 259 273. Google Scholar Crossref

  • Effect of Paste-Aggregate Bond Strength on Behavior of

    Coarse aggregate was coated with a thin layer of polystyrene to reduce paste-aggregate bond strength. The resulting concrete was compared to concrete containing uncoated control aggregate for strength, stiffness, and type and amount of microcracking. Environmental & Architectural Engineering Scholarly Works [88] Citation.

  • Properties of concrete made with crushed concrete as

    Tests on the aggregates showed that the recycled concrete aggregates have lower specific gravity and higher absorption capacity than the original crushed granite aggregate. The resistance to mechanical actions such as impact, crushing and abrasion for the recycled concrete aggregates is also lower. The effects of using recycled concrete

  • Study on performance of concrete with over-burnt bricks

    Oct 11, 2016· Toutanji H A and El-Korchi T 1996 Tensile and Compressive Strength of Silica Fume-Cement Pastes and Mortars”, Cement, Concrete and Aggregate ASTM Journals 18 78-84 0149-6123 December. Google Scholar

  • Cement and Concrete Research Journal Elsevier

    The aim of Cement and Concrete Research is to publish the best research on the materials science and engineering of cement, cement composites, mortars, concrete and other allied materials that incorporate cement or other mineral binders. In doing so, the journal will focus on reporting major results of research on the properties and performance of cementitious materials; novel experimental

  • Sustainable materials for low carbon buildings Journals

    Such wastes can be utilized for the manufacture of bricks/blocks, substitute for fine aggregates in concrete, partial replacement of cement in concrete, lime-pozzolana cements, etc. There are attempts to utilize mine wastes for the building materials [27, 28]. Reuse and recycling of demolished building wastes is another nearly unexplored area

  • EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON

    Google Scholar. Şemsi Yazıc The objective of this study is to investigate the effect of recycled concrete aggregate (RCA) quality on the properties of hardened concrete properties such as compressive strength, splitting tensile strength, density, water absorption capacity and porosity accessible to water.

  • Exposing Aggregate in Concrete Countertops

    After the concrete is poured and finished, there are a few methods that can be used to expose the aggregate, such as water washing, abrasive blasting, honing and acid etching, but when it comes to concrete countertops, whether pre-cast or poured in place, a Wet Polisher and Diamond Polishing Pads are most common. This process will expose the top of the stone/aggregate leaving the rest embedded

  • A study on the performance of concrete containing recycled

    Dec 07, 2017· The concrete aggregate was chosen due to improvement capillary bonding mechanisms and ceramic presented similar strength compared to the conventional concrete using natural aggregate. Percent of replacement have been used in this study was at 25%, 35% and 45% of the RCA and 5%, 10% and 15% for ceramic, respectively.

  • Experimental study of cold Bonded artificial lightweight

    Jun 26, 2018· Aggregates are used in concrete for a very specific purpose. The use of coarse and fine aggregates in concrete provides significant economic benefits to the final cost of concrete since they are the least expensive materials used in concrete and generally make up about 60 to 75 percent of the volume of concrete mixture.

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