Increased Fine Aggregate In Concrete

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Sorptivity and chloride permeability of concrete using

The granulated FNS is broadly supplied by the producers for using it as an alternative fine aggregate in concrete The present study evaluates some durability properties of concrete using FNS obtained from the smelting of garnierite nickel ore found in New Caledonia

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A Study on Properties of Self

alternative aggregate like manufactured sand is a natural step in solving part of depletion of natural aggregates The investigation on alternative material for self- compacting concrete making started in recent times Concrete made from manufactured sand waste as fine aggregate will be studied for

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13 1 2

For a given aggregate fraction in the concrete the workability improves as the size of the maximum aggregate particles increases Put another way for a given workability the use of larger particles allows for a mix design with less cement However there are other constraints on the maximum aggregate size

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Influence of stone dust as fine aggregate replacement on

concrete samples It was found that the 10% of replacement increased the compressive strength of concrete however 5% of stone dust was adequate considering the impact resistance of the material Topu A Ugurlu8 used 5 replacement levels (3% 7% 10% and 15%) of natural sand aggregate by fine particles (sizes smaller than 2mm) The authors

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Recycled glass as a partial replacement for fine aggregate

the effect of fine glass aggregate upon the develop-ment of compressive strength Tuncan et al (2001) demonstrated that compressive strength increased along with the addition of waste glass in replace-ment levels up to 15% Further studies conducted by Ismail and AL-Hashmi (2009) demonstrated that concrete containing 20% fine glass aggregate ex-

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Mechanical and Durability Properties of Induction

9-8-2018They found that the compressive and tensile strength increased when up to 40% NAC was replaced by IFS John and John replaced fine aggregate by crushed IFS They found that the compressive strength of mortar and concrete containing IFS up to 30 percent as fine aggregate is comparable with the strength of concrete with sand

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Recycled Aggregates

Special care is necessary when using fine RCA Only up to 10 to 20 percent fine RCA is beneficial The aggregate should be tested at several substitution rates to determine the optimal rate Often recycled aggregate is combined with aggregate when used in new concrete

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EXPERIMENTAL STUDY ON CONCRETE USING SEA SAND AS FINE

EXPERIMENTAL STUDY ON CONCRETE USING SEA SAND AS FINE AGGREGATE R Mahendran 1 K Godwin 1 for the fine aggregate component of concrete in the past but overuse of the material has led to environmental river sand has increased by over 40 per cent consequent to the ban imposed on river sand mining

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AN EXPERIMENTAL STUDY ON EFFECTIVE UTILIZATION OF

identifying the alternate material for fine aggregate Hence in order to safeguard the natural wealth of rivers and to meet the increased requirements of fine aggregate construction industry people and researchers are suggesting finding the alternate material for fine aggregate for concrete Bottom Ash

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Coarse Recycled Aggregate Concrete Pavements

Coarse Recycled Aggregate Concrete Pavements – Design Instrumentation and Performance James T Smith M A Sc concrete for use as recycled concrete aggregate (RCA) is increasing Using the waste used as fine aggregate since it provides a greater strength than fine RCA (10)

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Study On Behaviour Of Concrete Partially Replacing

Study On Behaviour Of Concrete Partially Replacing Quartz Sand As Fine • Make use of the quartz sand available from industries and also the river side in the form of deposits as fine aggregate in concrete of the compressive strength of concrete cubes show that the compressive strengths reduced as the percentage Quartz sand increased

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Experimental Studies on Concrete Replacing Fine Aggregate

Experimental Studies on Concrete Replacing Fine Aggregate with Blast Furnace Slags J Selwyn Babu1 Dr N Mahendran2 1Associate Professor Department of Civil Engineering PSNA College of Engineering and Technology Dindigul India 2Professor and Head Department of Civil Engineering PSNA College of Engineering and Technology Dindigul India

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Use of Copper Slag as Fine Aggregate in Concrete A review

1) Cost of Concrete production is reduced when Copper Slag is used as a fine aggregate in concrete 2) High toughness of Copper Slag contributes to Increased Compressive strength 3) Due to low water absorption and due to glassy surface of Copper slag the workability of concrete is increased with increase of Copper Slag content in the concrete

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EFFECTS OF AGGREGATE TYPE SIZE AND CONTENT ON CONCRETE

The effects of aggregate type size and content on the behavior of normal and high-strength concrete and the relationships between compressive strength flexural strength and fracture energy are discussed The concrete mixtures incorporate either basalt or crushed limestone aggregate sizes of 12 mm ('h in ) or 19 mm ( Y in ) and

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Experimental Study on the Workability of Recycled Fine

FAMING LIU et al EXPERIMENTAL STUDY ON THE WORKABILITY OF RECYCLED FINE AGGREGATE DOI 10 5013/IJSSST a 17 49 20 20 1 ISSN 1473-804x online 1473-8031 print Experimental Study on the Workability of Recycled Fine Aggregate Concrete Cement Mortar

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On Aggregate Grading

recommends that if fine aggregates have a high proportion of fine material (manifested by a low fineness modulus) then the amount of coarse aggregate should be increased thereby indirectly decreasing the quantity of fine aggregate in the concrete mixture WG combined aggregate obtained %

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Increased Fine Aggregate In Concrete

Increased Fine Aggregate In Concrete Construction aggregate wikipedia construction aggregate or simply aggregate is a broad category of coarse to medium grained particulate material used in construction including sand gravel crushed stone slag recycled concrete and geosynthetic aggregates

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Aggregates

Crushed aggregate is produced by crushing quarry rock boulders cobbles or large-size gravel Recycled concrete is a viable source of aggregate and has been satisfactorily used in granular subbases soil-cement and in new concrete After harvesting aggregate is processed crushed screened and washed to obtain proper cleanliness and gradation

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role of fine aggregate in concrete free download

Egg Shell as a Fine Aggregate in Concrete for Sustainable The strength development of the concrete mixes containing egg shell aggregates was compared to that of conventional concrete with sand as fine aggregate The result showed a reduction in compressive strength of the concrete but still falls within limits of lightweight concrete

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Optimum Mix Design for Minimum Concrete Strength

ratio or ignorance in the use of locally available fine aggregate containing impurities which consequently affect the overall mix (Babatunde and Opawole 2009) Mix ratio can affect the strength and stability of a reinforced concrete structure just as the size the shape and the grading of the aggregate

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Construction aggregate

Construction aggregate or simply aggregate is a broad category of coarse to medium grained particulate material used in construction including sand gravel crushed stone slag recycled concrete and geosynthetic aggregates Aggregates are the most mined materials in the world

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Influence of stone dust as fine aggregate replacement on

concrete samples It was found that the 10% of replacement increased the compressive strength of concrete however 5% of stone dust was adequate considering the impact resistance of the material Topu A Ugurlu8 used 5 replacement levels (3% 7% 10% and 15%) of natural sand aggregate by fine particles (sizes smaller than 2mm) The authors

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An Experimental study on compressive strength of Quarry

quarry dust can be used as a replacement for fine aggregate It is found that 50% replacement of fine aggregate by quarry dust gives maximum result in strength than normal concrete and then decreases after replacement of fine aggregate Key Words fine aggregate quarry dust compressive strength replacement 1 INTRODUCTION

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Recycled Concrete as Aggregate for Structural Concrete

Available test results of recycled aggregate concrete vary in wide limits sometimes are even opposite but general conclusions about the properties of concrete with recycled coarse aggregate compared to concrete with natural aggregate are - Increased drying shrinkage up to 50% [13 14] - Increased creep up to 50% [13 15]

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The Effect of Aggregate Size on The Strength of Concrete

several factors such as mixing ratio aggregate size texture coarse and fine aggregate compaction method curing period and some parameters have been discussed in literature review The results showed the concrete aggregate size of 20mm has a 45 7% higher compressive strength than the concrete aggregate size of 10mm

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Effect of Geopolymer Aggregate on Strength

rized in Table 2 The ingredients of the concrete mixture such as cement fine aggregate coarse aggregate and water was calculated based on the absolute volume method 22 The fine aggregate used was river sand in uncrushed form with a specific gravity of 2 5 and a fineness modulus of 3 0 The

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SECTION 701 AGGREGATES

Fine aggregate from a source with a fineness modulus variation greater than 0 20 from the design fineness modulus of the sample may require a concrete mix redesign Applying the 0 20 variation does not permit the fineness modulus to be less than 2 50 or morethan 3 10 TABLE 701-2 TABLE OF GRADATIONS - FINE AGGREGATE FOR CONCRETE

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Use of Saw Dust as Fine Aggregate in Concrete Mixture

strength of concrete decreased as the fraction of sawdust increased Key Words Compressive strength Concrete Sawdust Light weight concrete Fine Aggregate 1 INTRODUCTION Concrete is a mixture of cement fine and coarse aggregates and water which are mixed in a specific proportion to get a particular strength

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ISSN 2348

this end fine recycled aggregate (FRA) sourced from crushed broken cement bricks obtained from a site building platform close to the University of Botswana was used as a replacement of fine natural aggregate (FNA) for concrete production The FNA in concrete was replaced with 0% 20% 40% 60% 80% and FRA

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Workability

A fine aggregate deficiency results in a mixture that is harsh prone to segregation and difficult to finish On the contrary an excess of fine aggregate will lead to some extent more permeable and less economical concrete although the mixture will be easily workable Aggregate Properties

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Effect of copper slag as a fine aggregate on the

An experimental investigation was conducted to study the effect of using copper slag as a fine aggregate on the properties of cement mortars and concrete Various mortar and concrete mixtures were prepared with different proportions of copper slag ranging from 0% (for the control mixture) to as fine aggregates replacement

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