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an investigation into sizes of aggregate in concrete ...

an investigation into sizes of aggregate in concrete production 2019-06-13T03:06:07+00:00 Home Project . J40 Jaw Crusher. J45R Jaw Crusher. J50 Jaw Crusher. I44 Impact Crusher. I44R Impact Crusher. I54 Impact Crusher. C38 Cone Crusher. C38R Cone Crusher. C44 Cone Crusher. Investigation of usability of limonite aggregate in heavy . 2018/05/01 The concrete strengths are not between 60

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Aggregates for Concrete

Sieve sizes commonly used for concrete aggregates are detailed in Table 1, and various physical properties of normalweight aggregates, with typical range values, are shown in Table 2. Coarse and fine aggregates are generally sieved separately. That portion of an aggregate passing the 4.75 mm (No. 4) AGGREGATES FOR CONCRETE E1-3 sieve and predominantly retained on the 75 µm (No. 200)

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Recycled coarse aggregates from pelletized unused concrete ...

2019-05-10  This study proposes the use of a new pelletization process to convert fresh unused concrete into an artificial aggregate, which can be reintroduced into the concrete production cycle. Specifically, the investigation focuses on the properties of two pelletized recycled aggregates (PRAs) derived from two sources of an unsettled cementitious mixture.

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Effect of Aggregate Size and Gradation on Compressive ...

The result showed that the concrete made from aggregate sizes of 9.5mm, 12.7mm and 19.1mm recorded slumps of 60mm, 50mm and 30mm respectively, while concrete made from the graded aggregates recorded the least slump of 20mm. Also, the concrete made from 9.5mm, 12.7mm, 19.1mm aggregates recorded mean compressive strengths of 18.2N/mm2, 20.0N/mm2 and 20.9N/mm2

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AN INVESTIGATION INTO THE USE OF SLATE WASTE AGGREGATE

AN INVESTIGATION INTO THE USE OF SLATE WASTE AGGREGATE IN CONCRETE Wafa Labib and Nick Eden Built of Environment, Liverpool John Moores University, Liverpool, L33AF, UK Email: [email protected] Abstract: In keeping with its approach to sustainable development, it is UK Government policy to encourage greater use of industrial waste products as an alternative to primary aggregates in concrete ...

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A comparative study of concrete properties using coconut ...

2006-03-01  An investigation into the suitability of coconut shells as aggregates in concrete production Journal of Environment Design and Management, Obafemi Awolowo University, Ile-Ife , 1 ( 1,2 ) ( 1998 ) , pp. 17 - 26

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investigation into the impact of different grain sizes of ...

Explore project topics and research ideas related to investigation into the impact of different grain sizes of fine aggregate on the strength of concrete . Explore project topics and research ideas related to investigation into the impact of different grain sizes of fine aggregate on the strength of concrete . Projects; Property; Tutor; News; Blog; Books; Weather +234 813 0686 500 +234 809 ...

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Compressive strength of˜concrete with˜palm kernel shell as ...

The density of concrete is based on the specific gravity of the aggregate and the properties of the other components of concrete. Density of concrete can affect the dead load of a structure. A total of 40 cubes were produced and the densities were evaluated at 7 days, 14 days, 21 days and 28 days. Average density of concrete cubes is summarized in Table 10.

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Recycled construction and demolition concrete waste as ...

Aggregate Three types of aggregates were used in this study which include natural sand as fine aggregate (NFA), coarse aggregates with grading of 4.75–20 mm were dolomite as natural (NCA) and the crushed concrete rubble as (RCA) which were collected from fifteen different sources of demolished buildings and landfill locations then crushed using a Hartle PC-160 mobile impact crusher shown in

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An Investigation into the Properties of Concrete ...

An Investigation into the Properties of Concrete Containing Polyethylene (Pure-water sachet waste) Nwaigwe, D.N.1., Sulymon, N.A.2, Bello, T.2 and Amiara, C.A.1 1Nigerian Building and Road ...

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Recycled coarse aggregates from pelletized unused concrete ...

2019-05-10  This study proposes the use of a new pelletization process to convert fresh unused concrete into an artificial aggregate, which can be reintroduced into the concrete production cycle. Specifically, the investigation focuses on the properties of two pelletized recycled aggregates (PRAs) derived from two sources of an unsettled cementitious mixture. This research is based on the

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Stabilization Assessment Of Aggregates In Asphalt Concrete ...

the investigation has shown that from each of the asphalt plant, the maximum aggregate size used in the production of asphalt concrete was 12.5 mm while the nominal size was 9.5 mm. However, the asphalt concrete paving materials investigated were of a dense mixture because of the presence of

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AN INVESTIGATION INTO STRUCTURAL STRENGTHS OF

An investigation into structural strengths of laterized concrete 193 The performance of laterite as fine aggregate replacement in concrete has been found to produce good results [10, 11]. This was confirmed that laterite can be used as cheap, environment-friendly and readily available fine aggregate

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investigation into the impact of different grain sizes of ...

Explore project topics and research ideas related to investigation into the impact of different grain sizes of fine aggregate on the strength of concrete . Explore project topics and research ideas related to investigation into the impact of different grain sizes of fine aggregate on the strength of concrete . Projects; Property; Tutor; News; Blog; Books; Weather +234 813 0686 500 +234 809 ...

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Microsoft Word - An Investigation on The Strength and ...

From the slump and compaction result of the various mixes the concrete made is of high degree of workability. (Shetty, M. S. 2005). TABLE 6 Crushing Strength Value of Concrete Work Fig. 3. Particle Size Distribution of Palm Kernel Shell From the graph, the uniformity coefficient is 4.70 and coefficient of curvature cc = 0.265. It means the aggregate is well graded, can be used for production ...

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A comparative study of concrete properties using coconut ...

2006-03-01  An investigation into the suitability of coconut shells as aggregates in concrete production Journal of Environment Design and Management, Obafemi Awolowo University, Ile-Ife , 1 ( 1,2 ) ( 1998 ) , pp. 17 - 26

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Performance of concrete with recycled aggregates

about 14 million and 9.5 million tonnes. And although the production rate of this concrete far exceeds the production of recycled aggregate, the application of this material into concrete is - as a concept - interesting, since it contributes to closing the concrete life cycle, thereby contributing to

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AN INVESTIGATION INTO STRUCTURAL STRENGTHS OF

AN INVESTIGATION INTO STRUCTURAL STRENGTHS OF LATERIZED CONCRETE Introduction Concrete is one of the commonly used construction materials but there is a need to develop new and sustainable technologies to make concrete more affordable in a developing country like Nigeria. The use of abundantly available materials, like laterite, to replace normal aggregates in concrete for

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A Review on an Investigation into the Role of Nano-Silica ...

A Review on an Investigation into the Role of Nano-Silica with Light Weight Concrete for Better Replacement of Coarse Aggregate. Abhishek Mishra1, Dr. Ajay Swarup2 1Research Scholar, 2Associate Professor, Head of the Department 1,2Department of Civil Engineering School of Engineering, SSSUTMS, Sehore, India Abstract A lot of Investigation has been done on the Nano

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The Potential of Laterite as Fine Aggregate in Foamed ...

This paper presents the results of an investigation into the potential use of laterite as fine aggregate in foamed concrete production.The influence of varying the proportion of laterite addition on the free flowing characteristic and the compressive strength properties of foamed concrete were determined. The results obtained show a decrease in free flowing capacity of the foamed concrete with ...

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AN INVESTIGATION INTO STRUCTURAL STRENGTHS OF

An investigation into structural strengths of laterized concrete 193 The performance of laterite as fine aggregate replacement in concrete has been found to produce good results [10, 11]. This was confirmed that laterite can be used as cheap, environment-friendly and readily available fine aggregate for con-

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Investigation into the Mechanical Properties and ...

Recycled concrete aggregates (RCA) are an eco-sustainable alternative to traditional aggregates. The equivalent mortar volume method has been developed to design RCA concrete with comparable mechanical and strength properties to natural aggregate concrete by accounting for the adhered mortar that distinguishes RCA from natural aggregates. This method also presents an opportunity to reduce the ...

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Investigation on Fine Aggregate by Broken Tiles in Concrete

A. M. Sekar (2017) [1] has examined that partial replacement of coarse aggregate by waste ceramic tile in concrete. In this investigation, an endeavor has been made to discover the appropriateness of ceramic coarse aggregate as a conceivable substitute for customary aggregate in concrete. The concrete examples were thrown with blend 1:1.65:2.82 ...

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Stabilization Assessment Of Aggregates In Asphalt Concrete ...

the investigation has shown that from each of the asphalt plant, the maximum aggregate size used in the production of asphalt concrete was 12.5 mm while the nominal size was 9.5 mm. However, the asphalt concrete paving materials investigated were of a dense mixture because of the presence of

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EFFECT OF AGGREGATE SIZES ON CONCRETE STRENGTH

CHAPTER ONE INTRODUCTION 1.1 Background of study It is well recognized that coarse aggregate plays an important role in concrete. Coarse aggregate typically occupies over one-third of the volume of concrete, and research indicates that changes in coarse aggregate can change the strength and fracture...

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AN INVESTIGATION INTO THE USE OF GROUNDNUT SHELL AS

I.Inclusion of air voids into the concrete mix. II.Omission of ne aggregate phase. III.Replacing the normal natural aggregates with lightweight aggregates. In the third approach, natural lightweight aggregate such as expanded slag, pumice, scoria, and perlite, industrial, and agricultural wastes have been used. Other wood waste such as splinters and shavings, suitably treated chemically have ...

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An Investigation into the Use of Manufactured Sand as a ...

An Investigation into the Use of Manufactured Sand as a 100% Replacement for Fine Aggregate in Concrete Martins Pilegis, Diane Gardner * and Robert Lark Cardiff School of Engineering, Cardiff University, Queens Buildings, Cardiff CF24 3AA, UK; [email protected] (M.P.); [email protected] (R.L.) * Correspondence: [email protected]; Tel.: +44-029-2087-0776 Academic Editor: Geminiano ...

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Partial Replacement of Aggregates with Ceramic Tiles and ...

Hence, it is used as fine aggregate in concrete. River sand locally available in the market was used in the investigation. The aggregate was tested for its physical requirements such as gradation, fineness modulus, specific gravity in accordance with IS: 2386-1963.The sand was surface dried before use. Table 2: Properties of Fine Aggregate

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An Investigation into the Use of Wood vs. Steel and ...

An Investigation into the Use of Wood vs. Steel and Concrete in Construction of the New SUB APSC 261: Technology and Society I Presented to: Dr. Carla Paterson Dr. Craig Hennessey Prepared by: Fardin Barekat Ding Yuan Han Mahmud Dewan Astro Qian Date: Nov 30, 2010. 2 ABSTRACT: The University of British Columbia is a one of the many leaders in North America in terms of sustainability. The New ...

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PARTIAL REPLACEMENT OF CEMENT WITH CORN COB ASH IN ...

aggregates and mechanical properties of CCA cement concrete at 0.5 water–cement ratio and mix ratio of 1:2:4 were examined. Sixty concrete (60) cubes of size 150x150x150mm with different percentages by mass of Gypsumcob ash to Portland cement in order of 0%, 3%, 6%, 9% and 12% Gypsumcob ash were cast and crushed. The specific gravity of Gypsumcob ash was 1.16, while a twenty eight (28) day ...

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