recycled aggregates workability

WORKABILITY STUDY FOR RECYCLED AGGREGATES WORKABILITY STUDY FOR RECYCLED AGGREGATES Parekh D N1 and Modhera C D 2 1 Research Scholar, Applied Mechanics Departm recycled aggregates workability

recycled aggregates workability

  • WORKABILITY STUDY FOR RECYCLED AGGREGATES

    WORKABILITY STUDY FOR RECYCLED AGGREGATES Parekh D N1 and Modhera C D 2 1 Research Scholar, Applied Mechanics Department; SVNIT; 2 Professor; Applied Mechanics Department; SVNIT; Surat ABSTRACT: Significant quantities of waste are being produced and discarded by the construction and demolition (C & D) industries within the Asia and many other developed countries,Workability and EarlyAge Strength of Recycled Aggregate Concrete Incorporating Basalt Fibers Shahrukh Shoaib1, Hilal ElHassan1, Bilal ElAriss1, Tamer ElMaaddawy1 1United Arab Emirates University, Department of Civil and Environmental Engineering PO Box 15551, Al Ain, United Arab Emirates ; ; ;Workability and EarlyAge Strength of Recycled Aggregateworkability of FRHSC was measured in terms of compaction factor and VB time in fresh state of concrete Double –L (pushoff) specimens with inner dimension of 2794mm X 2032mm with a wall thickness of 127mm have been used to determine the shear strength The effect of recycled coarse aggregate (RCA) on the workability and shear strength ofEFFECT OF RECYCLED COARSE AGGREGATE ON WORKABILITY

  • Workability and EarlyAge Strength of Recycled Aggregate

    Abstract This research investigates the effect of basalt fibers (BF) on the workability and earlyage compressive and splitting tensile strengths of concrete made with 100% recycled concrete aggregates (RCA) The target concrete compressive strengths were 30, 45, and 60 MPa, whereas the basalt fibers had a length of either 20 or 43 mm· The use of recycled aggregates (RA) for concrete production usually involves a reduction of the workability as measured by slump This reduction is mainly due to higher absorption rates, roughtextured surfaces and particles with quite irregular shape from RA Besides that, the slump test is a static test, whose result is influenced by its own weight and by internal friction between particlesWorkability study of concretes made with recycled mortarshowed that the workability of recycled aggregate is lower than the workability of natural aggregate concrete ,the slump test was about 10cm slump for 60 % coarse recycled aggregate concrete and increases as the percent of recycled aggregate decreases The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is about 76 % of natural aggregate concretePerformance of Recycled Aggregate Concrete

  • Recycled Aggregates Portland Cement Association

    Recycled concrete aggregates contain not only the original aggregates, but also hydrated cement paste This paste reduces the specific gravity and increases the porosity compared to similar virgin aggregates Higher porosity of RCA leads to a higher absorptionAbstract This research investigates the effect of basalt fibers (BF) on the workability and earlyage compressive and splitting tensile strengths of concrete made with 100% recycled concrete aggregates (RCA) The target concrete compressive strengths were 30, 45, and 60 MPa, whereas the basalt fibers had a length of either 20 or 43 mmWorkability and EarlyAge Strength of Recycled AggregateHence it can be concluded that with the increase in the recycled aggregate concrete,workability decreases for both HSCwith ) and 1% fibers From the considerations of both shear strength and workability, it is recommended to limit the replacement of natural coarse aggregate with recycled coarse aggregate up to 20% REFERENCES [1] Bairagi et al (1990) “Influence of recycled aggregateEffect Of Recycled Coarse Aggregate On Workability And

  • recycled aggregates workability gobertgroupbe

    · Because recycled aggregate contains mortar from the original concrete, it is more porous and absorptive than many natural aggregates Recycled aggregate had water absorption of 96% The workability of concrete, as the amount of recycled aggregate was increased, the concrete required more water to maintain adequate Get Price· This study examines the workability, strength, and microstructure of high strength ecoconcrete incorporating recycled clay brick aggregate and calcined clay The study adopted a design mixes proportioning of 1:1:2 by weight at a constant water/binder ratio of 025 The waste bricks were crushed, then used to partially substitute sand at levels of 0, 10, 20, 30, 40, and 50%, while calcinedWorkability, strength, and microstructure of high strengthThis paper reports an evaluation of the properties of mediumquality concrete incorporating recycled coarse aggregate (RCA) Concrete specimens were prepared with various percentages of the RCA (25%, 50%, 75%, and 100%) The workability, mechanical properties, and durability in terms of abrasion of cured concrete were examined at different agesMaterials | Free FullText | Recycled Concrete Aggregate

  • Recycled Aggregates Portland Cement Association

    Using recycled aggregates instead of extracted aggregates would qualify as postconsumer Because concrete is an assembly, its recycled content should be calculated as a percentage of recycled material on a mass basis Credit can also be obtained for Construction Waste Management It is awarded based on diverting at least 50 percent by mass ofshowed that the workability of recycled aggregate is lower than the workability of natural aggregate concrete ,the slump test was about 10cm slump for 60 % coarse recycled aggregate concrete and increases as the percent of recycled aggregate decreases The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is about 76 % of natural aggregate concretePerformance of Recycled Aggregate Concrete· Recycled aggregate materials produce harsh mixes with lower workability than Natural aggregates New standards should be introduced for recycled aggregates so that these materials can be used successfully in future FUTURE RECOMMENDATIONS As per past studies and researches it is so necessary to use the Recycled concrete aggregate for the construction work NecessaryRecycling of Concrete (Recycling Coarse Aggregate) – IJERT

  • Mechanical Properties Of Recycled Aggregates Concrete

    25 WORKABILITY STUDY FOR RECYCLED AGGREGATES Significant quantities of waste are being produced and discarded by the construction and demolition (C & D) industries within the Asia and many other developed countries, and this is likely to increase considerably in the future On the other hand, in recent years the construction industry throughout the world has supported initiatives to improve· History Recycled concrete aggregates or Crushed concrete aggregates has been in use since the ancient times, only to be integrated with gravel, sand, and cement to ensure durability The practice was first recorded in the 1860s US construction companies were reluctant to use the technique at first since crushing cured concrete proved to be much more costintensive in terms of laborRecycled Concrete Aggregates – Its Uses, PropertiesDownload Citation | On May 1, 2012, Parekh D N published WORKABILITY STUDY FOR RECYCLED AGGREGATES | Find, read and cite all the research you need on ResearchGate Article WORKABILITY STUDY FORWORKABILITY STUDY FOR RECYCLED AGGREGATES

  • EFFECT OF RECYCLED COARSE AGGREGATE ON WORKABILITY

    workability of FRHSC was measured in terms of compaction factor and VB time in fresh state of concrete Double –L (pushoff) specimens with inner dimension of 2794mm X 2032mm with a wall thickness of 127mm have been used to determine the shear strength The effect of recycled coarse aggregate (RCA) on the workability and shear strength of· Because recycled aggregate contains mortar from the original concrete, it is more porous and absorptive than many natural aggregates Recycled aggregate had water absorption of 96% The workability of concrete, as the amount of recycled aggregate was increased, the concrete required more water to maintain adequate Get Pricerecycled aggregates workability gobertgroupbeSeveral authors have reported the workability, mechanical properties, and durability of concrete produced with construction waste replacing the natural aggregate However, a systematic microstructural characterization of recycled aggregate concrete has not been reported This work studies the use of Microstructural characterization of concrete prepared with recycled aggregates MicroscMicrostructural characterization of concrete prepared with

  • Materials | Free FullText | Recycled Concrete Aggregate

    This paper reports an evaluation of the properties of mediumquality concrete incorporating recycled coarse aggregate (RCA) Concrete specimens were prepared with various percentages of the RCA (25%, 50%, 75%, and 100%) The workability, mechanical properties, and durability in terms of abrasion of cured concrete were examined at different ages· History Recycled concrete aggregates or Crushed concrete aggregates has been in use since the ancient times, only to be integrated with gravel, sand, and cement to ensure durability The practice was first recorded in the 1860s US construction companies were reluctant to use the technique at first since crushing cured concrete proved to be much more costintensive in terms of laborRecycled Concrete Aggregates – Its Uses, Propertiesrecycled aggregates workability; For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value and profit more quickly Jaw crusher Jaw stone crusher is actually werecycled aggregates workability

  • Mechanical Properties Of Recycled Aggregates Concrete

    25 WORKABILITY STUDY FOR RECYCLED AGGREGATES Significant quantities of waste are being produced and discarded by the construction and demolition (C & D) industries within the Asia and many other developed countries, and this is likely to increase considerably in the future On the other hand, in recent years the construction industry throughout the world has supported initiatives to improveRCA The recycled aggregate concrete is made by mixing 60% of recycled aggregates with 40% of crushed stone chips The aggregates used for concrete batching are maintained at saturated surface dry condition The workability of the recycled aggregate concrete is slightly lower than that of the conventional concrete TheA STUDY ON RECYCLED CONCRETE AGGREGATES· This experimental research investigates the effect of utilizing metakaolin (MK) on the behavior of recycled aggregate concrete (RAC) The RAC incorporates recycled coarse aggregate (RCA) originated from crushing construction and demolition waste The investigated parameters were RCA and MK contents Tests of workability and mechanical properties such as compressiveRecycled Aggregate Concrete including Various Contents of