journals supporting recycled aggregate concrete

journals supporting recycled aggregate concrete

journals supporting recycled aggregate concrete
Application

A STUDY ON RECYCLED CONCRETE AGGREGATES Recycled aggregate concrete is in close proximity to normal concrete in terms of split tensile strength The slump of re

journals supporting recycled aggregate concrete

  • A STUDY ON RECYCLED CONCRETE AGGREGATES

    Recycled aggregate concrete is in close proximity to normal concrete in terms of split tensile strength The slump of recycled aggregate concrete is more than the normal concrete At the end , it can be said that the RCA upto 50 % can be used for obtaining good quality concrete MATERIALS International Journal of Pure and Applied Mathematics Special Issue 3243 Concrete is a composite material· FroudinstouYannas, S (1977) Waste concrete as aggregate for new concrete ACI Journal,74, 373–376 Google Scholar JIS (2011) Recycled aggregate for concreteclass H (JIS A 5021:2011) Tokyo: Japan Concrete Institute (in Japanese) JIS (2012a) Recycled concrete using recycled aggregate class M (JIS A 5022:2012) Tokyo: Japan ConcreteRecycled Concrete Aggregates: A Review | InternationalRecycled concrete aggregate (RCA) are aggregates obtained by recycling clean concrete waste where content of other building waste must be very low – below few per cent For instance, British standard BS 85002 ( BSI, 2006 ) defines RCA as recycled aggregate with maximum masonry/fines content of 5%, maximum lightweight material/asphalt content of 05% and maximum other foreignRecycled Concrete Aggregate an overview | ScienceDirect

  • 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 virgin aggregate In addition, the use of RCA leads to a possible solution to the environmental problem caused by concrete waste and reduces the negative environmental impact of the aggregateIn this paper, the properties of sulphoaluminate based recycled concrete, with high workability and low and medium strength, prepared by recycled powder (RP), recycled coarse aggregate (RCA), and high belite sulphoaluminate cement (HBSAC), were systematically studied Under the condition of a water binder ratio of 045, sulphoaluminate based recycled concrete, with different mix proportionsSpecial Issue "Advances in Recycled Aggregate Concrete"A Gupta The idea of recycling concrete waste as coarse aggregates for new concrete construction is gaining importance on the international scale Although the mechanical properties of recycled(PDF) Use of recycled concrete aggregate in concrete: A review

  • Durability of recycled aggregate concrete – A review

    · Although the researches on recycled aggregate concrete (RAC) has been going on for nearly 70 years , the use of RA in concrete structures is still limited due to its longterm durability concerns With the decrease of natural aggregate resources and the increase of waste concrete generation, RAC has become a hot research topic around the worldThis research paper presents the laboratory investigations of the compressive strength of nofines concrete made with demolished waste as coarse aggregates used in percentages from 20% to 100% The basic properties of aggregates were determined Sieve analysis of both conventional and recycled aggregates was conducted to ensure the existence of wellgraded aggregates in concreteQuality of Recycled Aggregates and Compressive Strength of· Recycled concrete aggregates are different from natural aggregates and concrete made from them has specific properties The percentages of recycled concrete aggregates were varied and it was observed that properties such as compressive strength showed a decrease of up to 10% as the percentage of recycled concrete aggregates increased Water absorption of recycled aggregatesStudies on recycled aggregatesbased concrete Major

  • Materials | Special Issue : Recycled Aggregate Concrete

    One of the main reasons for scepticism towards recycled aggregate concrete is the perceived notion that the heterogeneity of recycled aggregates may increase the uncertainty of the behaviour of concrete Therefore, the paper uses structural reliability concepts to propose partial factors for recycled aggregate concrete’s design for shear failure The paper builds upon a previous publicationThe present paper refers to the concrete recycling subject and, more specifically, to a proposal for Greek specifications of recycled concrete aggregates (RCA) with reference to international experience and practice The existence of Greek specifications of RCA––the European ones will come much later––will help Olympic Games 2004 to be as “green” as possibleRecycled concrete aggregates ScienceDirectFine aggregate: Locally available sand free from silt, organic matter and passing through 475mm sieve confirming to zone 2 as per IS 383 is used as fine aggregate Natural Coarse aggregate: the natural coarse aggregate of maximum size 125mm passing and retained on 475mm sieve is usedRecycled Coarse aggregate: the recycled aggregate sizeOptimization of Recycled Aggregate Concrete IRE Journals

  • (PDF) IRJET Recycled Concrete Aggregates | IRJET Journal

    Recycled coarse aggregate, coarse Using recycled material as gravel reduces the landfill space aggregate, Demolished structure Using recycled concrete as the base material for need for gravel mining 1 INTRODUCTION roadways reduces the pollution involved in trucking material Concrete is the single most widely used material in the While accepting the need to promote the use of RCA in worldThe objective of this study is to investigate the strength of concrete made with recycled concrete coarse aggregate The variables that are considered in the study include the source of the recycled concrete and target concrete strength The toughness and soundness test results on the recycled coarse aggregate showed higher percentage loss than natural aggregate, but remained within theInfluence of recycled concrete aggregates on strengthJournals Supporting Recycled Aggregate Concrete Ore Beneficiation Plant New dryprocess cement plant is composed of raw materials crushing equipment, grinding equipment, cement grinding equipment, cement rotary kiln and other equipment Learn More Stone Crushing Production Line Stone crushing plant mainly consists of vibrating feeder, jaw Crusher, impact crusher, vibrating screen, beltJournals Supporting Recycled Aggregate Concrete

  • (PDF) Recycled concrete: a review ResearchGate

    · Of all the recycled aggregates those produced from crushed concrete, recycled concrete aggregates (RCA), have been vastly reported It is shown that the creep of concrete increases at a decreasingThis paper investigates the use of carbonconditioned recycled aggregate (RA CO2) in concrete productionExperimental work is conducted for RA CO2 with varying chamber pressure (0 kPa, 75 kPa, 150 kPa), chamber duration (0 min, 30 min, 90 min) and RA CO2 replacement percentages (0%, 30%, 100%) for concrete production Average of three results on compressive, tensile and flexible strengthCarbonconditioned recycled aggregate in concreteThe mechanistic design of a concrete block pavement (CBP) can be very complicated and often requires the use of computer programs This paper presents a new mechanisticempirical method, which is implemented in a computer program (DesignPave) that calculates base course/subbase thicknesses for a range of design inputs such as traffic load, interlocking properties, and material stiffnessSustainability Assessment of Using Recycled Aggregates in

  • Studies on recycled aggregatesbased concrete Major

    · Recycled concrete aggregates are different from natural aggregates and concrete made from them has specific properties The percentages of recycled concrete aggregates were varied and it was observed that properties such as compressive strength showed a decrease of up to 10% as the percentage of recycled concrete aggregates increased Water absorption of recycled aggregatesjournals supporting recycled aggregate concrete our products D&Q Mining is a hightech company integrating R&D, production and sales It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc, for aggregate, mining and waste recycling Wheel Sand Washing Machine GF series feeder 5X Vibrating Screen 6X Series Belt Conveyorjournals supporting recycled aggregate concreteRecycled coarse aggregate, coarse Using recycled material as gravel reduces the landfill space aggregate, Demolished structure Using recycled concrete as the base material for need for gravel mining 1 INTRODUCTION roadways reduces the pollution involved in trucking material Concrete is the single most widely used material in the While accepting the need to promote the use of RCA in world(PDF) IRJET Recycled Concrete Aggregates | IRJET Journal

  • Quality of Recycled Aggregates and Compressive Strength of

    This research paper presents the laboratory investigations of the compressive strength of nofines concrete made with demolished waste as coarse aggregates used in percentages from 20% to 100% The basic properties of aggregates were determined Sieve analysis of both conventional and recycled aggregates was conducted to ensure the existence of wellgraded aggregates in concrete· The concrete made from recycled aggregate is known as recycled aggregate concrete The use of recycled aggregate is very beneficial to the environment in civil works Its usage also helps in financial saving as the cost of transportation and production energy cost of natural coarse aggregate (NCA) is reduced In India, the recycled aggregate application in lower grade concrete work isQuality Improvement of Recycled Aggregate Concrete using· Of all the recycled aggregates those produced from crushed concrete, recycled concrete aggregates (RCA), have been vastly reported It is shown that the creep of concrete increases at a decreasing(PDF) Recycled concrete: a review ResearchGate

  • The Utilization of Recycled Materials for Concrete and

    · Recycled materials such as recycled concrete aggregate or recycled brick aggregate from construction and demolition waste, waste glass from municipal waste or recycled waste gypsum from gypsum boards are able to use as replacement of primary raw materials in cement and concrete production Concrete and cement production totally depends on the natural resources The world production of concrete· The recycled aggregate concretes also exhibit poor sorptivity, water absorption, and chloride ion permeability compared to concrete containing NA The result of poor durability performance of recycled aggregate concretes is relative to high porosity of constituents and interconnectivity of the pore system in the concrete Correlations between different durability properties and compressiveProperties of concrete containing recycled construction· The testing described in this paper was performed to establish the physical and mechanical properties of new and recycled crushed clay brick aggregates for use in portland cement concrete (PCC) Various physical and mechanical properties of eight different types of aggregates were determined and compared with the limits set out in the British Standards for aggregate from naturalProperties of New and Recycled Clay Brick Aggregates for

  • Study of the Compressive Strength of Concrete with Partial

    The rates of replacing natural aggregates with recycled coarse were 0%, 10%, and 20% The test samples were compressed to determine their compressive strength value after 7, 14, and 28 days of curing The results showed that the concrete slump did not change effectively at a 10% replacement rate When using 20% recycled aggregates, the concrete was too hard and the homogeneity of the concrete