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(PDF) Properties of concrete made with crushed concrete as

Effects of using recycled concrete of different qualities as coarse aggregate upon the strength and deformation of concrete are reported. Tests on the aggregates showed that the recycled

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PROPERTIES OF CONCRETE USING CRUSHED BRICK AS COARSE

The investigation reported in this paper is carried out to study the feasibility of using crushed brick to substitute the coarse aggregate in concrete, replacing stone aggregate

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Effect of Crushed Glass as Coarse Aggregate for Concrete

Coarse aggregates are the larger part of the aggregate component of concrete. Coarse aggregate are considered as particles greater than 4.75mm but generally ranged between 9.5mm to 37.5mm in diameter [3]. They can either be from primary, secondary or recycled sources. Coarse aggregate ranging from 5-10mm are the most

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Aggregate Base Course vs. Crushed Concrete Aggregate Base

Fine aggregates are generally made of sand or crushed stone and includes particles that can pass through a 3/8-inch sieve. Coarse aggregates include particles that range between 3/8 and 1.5 inches in diameter. The size and quality of an aggregate affects how the resulting concrete will turn out, as well as the concrete’s mixture proportions.

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Replacement Of Coarse Aggregate In Concrete [Civil Planets]

The coconut shell can be used as a coarse aggregate in concrete. It has functional resistance capacity against crushing, impact & abrasion. There is no special treatment required for coconut shells when used as coarse aggregate in concrete.

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PROPERTIES OF AGGREGATES FOR CONCRETE Civil Engineering

Jul 19, 2020· Angular aggregates Used for higher strength concrete, angular aggregates come form of crushed rock and stone. Angular aggregates can be offset by filling voids with rounded or smaller aggregates. Flaky aggregates Defined as that are thin in comparison to length and width. Flaky aggregates increase surface area in a concrete mix.

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Different Types & Sizes of Aggregate for Concrete

Aug 11, 2018· Aggregate may be natural, manufactured or recycled. It includes gravel, crushed stone, sand, slag, recycled concrete and geosynthetic aggregates. For a good concrete mix, aggregates need to be clean, hard, strong particles free of absorbed chemicals or coatings of clay and other fine materials that could cause the deterioration of concrete.

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Crushed vs Round aggregate in concrete Structural

Feb 03, 2012· In very high strength concrete mixtures where coarse aggregate bond is critical, angular cubicle shaped coarse aggregates generally give higher strengths than rounded smooth aggregates. Where extremely high strengths are not required, acceptable concrete can be made with different types of aggregates, with some variation in w/cm required to

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Using Crushed Tiles as Coarse Aggregate in Concrete Mix

natural sand is used, up to 30 % of natural crushed aggregate can be replaced with coarse recycled aggregate without significantly affecting any of the mechanical properties of the concrete [2]. Poon and Chan (2005)[3] presented study on the investigation of blending recycled concrete aggregate and crushed clay brick as aggregates in the

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Crushed Returned Concrete as Aggregates for New Concrete

ASTM C 33, Specification for Concrete Aggregates, includes a requirement of an abrasion loss (by ASTM C 535) of less than 50% for aggregates used in concrete construction and less than 40% for crushed stone used in pavements4. According to the ACI 555 Committee Report4, all RCA except that made from the poorest quality recycled concrete, can be

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Influence of Crushed Coarse Aggregates on Properties of

3. Results and Discussions 3.1. Crushed Aggregate’s Effects on Slumps of Concrete. The Figure 1 depicts slum value of A-1 coarse aggregates for all five groups. For Impact Crushed (A-1) coarse aggregates slump values were evaluated for all five groups and it was evident from experiment that, there was a steady decrease in slump value with the decrease of w/c ratio.

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Effect of Crushed Glass as Coarse Aggregate for Concrete

Coarse aggregates are the larger part of the aggregate component of concrete. Coarse aggregate are considered as particles greater than 4.75mm but generally ranged between 9.5mm to 37.5mm in diameter [3]. They can either be from primary, secondary or recycled sources. Coarse aggregate ranging from 5-10mm are the most

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Aggregates for Concrete

AGGREGATES FOR CONCRETE E1-3 sieve and predominantly retained on the 75 µm (No. 200) sieve is called “fine aggregate” or “sand,” and larger aggregate is called “coarse aggregate.” Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.).

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Aggregate Base Course vs. Crushed Concrete Aggregate Base

Aggregates are split into two main categories: fine aggregate and coarse aggregate. Fine aggregates are generally made of sand or crushed stone and includes particles that can pass through a 3/8-inch sieve. Coarse aggregates include particles that range between 3/8 and 1.5 inches in diameter.

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Coarse Aggregate Its 5 [ Grading & Shapes ]

Apr 13, 2020· For higher workability and improving of compatibility of concrete proper grading of these aggregate can minimize the possibility of segregation. Shape Of Coarse Aggregate: The shape of these aggregate is round, angular or irregular and due to lower surface area rounded aggregate has the lowest water demand and also requires lower mortar paste.

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PROPERTIES OF AGGREGATES FOR CONCRETE Civil

Jul 19, 2020· These materials can be supplied in either coarse or fine-aggregate sizes. Fine aggregates have 100% of their material passing the 10 mm sieve. Coarse aggregates have the bulk of the material retained on 4.75 mm sieve. Aggregates comprise the greatest volume percentage in portland-cement concrete, mortar, or asphaltic concrete.

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Comparative Analysis Of The Compressive Strength Of

This research is aimed at finding out whether crushed burnt bricks can be substituted for gravel as coarse aggregates in the production of concrete. The objectives include: i. To determine the compressive strength of concrete with gravel and crushed burnt bricks or brick bats as coarse aggregates. ii. To determine the optimum mix ratio. iii.

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Crushed vs Round aggregate in concrete Structural

Feb 03, 2012· In very high strength concrete mixtures where coarse aggregate bond is critical, angular cubicle shaped coarse aggregates generally give higher strengths than rounded smooth aggregates. Where extremely high strengths are not required, acceptable concrete can be made with different types of aggregates, with some variation in w/cm required to

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Coarse Aggregate in Concrete Construction Shyam Steel

COARSE AGGREGATE . Coarse aggregates refer to irregular and granular materials such as sand, gravel, or crushed stone, and are used for making concrete. In most cases, Coarse is naturally occurring and can be obtained by blasting quarries or crushing them by hand or crushers. It is imperative to wash them before using them for producing concrete.

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Different Types & Sizes of Aggregate for Concrete

Aug 11, 2018· Recycled concrete can be used as aggregate in new concrete, particularly the coarse portion. When using the recycled concrete as aggregate, the following should be taken into consideration: Recycled concrete as aggregate will typically have higher absorption and lower specific gravity than natural aggregate and will produce concrete with

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The use of coarse and fine crushed bricks as aggregate in

May 01, 2008· The raw materials used for this study are natural coarse (NG) and fine (NS) calcareous aggregates, coarse (RG) and fine (RS) crushed bricks aggregates and a Portland cement type CEM I-32.5 from Meftah local factory, with a Blaine fineness of 3160 cm 2 /g. The grain size distribution of natural and recycled aggregates used is presented in Fig. 1 and their physical and mechanical

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5 Eco-Friendly Alternative Aggregates for Concrete!

Nov 21, 2020· Alternative materials for coarse aggregate in concrete can be rubber, glass, expanded fly ash clay, or plastic materials. On the other hand, agro-wastes, to industrial by-products, alternative materials for fine aggregate in concrete can be of a wide variety. In the following section, you will get a brief idea on these aggregate alternatives.

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(PDF) Properties of concrete made with crushed concrete as

Effects of using recycled concrete of different qualities as coarse aggregate upon the strength and deformation of concrete are reported. Tests on the aggregates showed that the recycled concrete

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Coarse Aggregate in Concrete Construction Shyam Steel

COARSE AGGREGATE . Coarse aggregates refer to irregular and granular materials such as sand, gravel, or crushed stone, and are used for making concrete. In most cases, Coarse is naturally occurring and can be obtained by blasting quarries or crushing them by hand or crushers. It is imperative to wash them before using them for producing concrete.

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Using Crushed Tiles as Coarse Aggregate in Concrete Mix

natural sand is used, up to 30 % of natural crushed aggregate can be replaced with coarse recycled aggregate without significantly affecting any of the mechanical properties of the concrete [2]. Poon and Chan (2005)[3] presented study on the investigation of blending recycled concrete aggregate and crushed clay brick as aggregates in the

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Properties of concrete made with crushed concrete as

Concrete made with crushed concrete as coarse aggregate BS SIEVE SIZE Finure I: Gradinn of crusher products of .- orininal concretes. natural sand and recycled-concrete asregate.

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Effect of Crushed Glass as Coarse Aggregate for Concrete

Coarse aggregates are the larger part of the aggregate component of concrete. Coarse aggregate are considered as particles greater than 4.75mm but generally ranged between 9.5mm to 37.5mm in diameter [3]. They can either be from primary, secondary or recycled sources. Coarse aggregate ranging from 5-10mm are the most

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Coarse Aggregate Its 5 [ Grading & Shapes ]

Apr 13, 2020· For higher workability and improving of compatibility of concrete proper grading of these aggregate can minimize the possibility of segregation. Shape Of Coarse Aggregate: The shape of these aggregate is round, angular or irregular and due to lower surface area rounded aggregate has the lowest water demand and also requires lower mortar paste.

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PART 9-MATERIALS TN

Coarse aggregate for prestressed and precast concrete shall be Size No. 57 or Size No. 67, Subsection 903.22, as may be specified or directed. Coarse aggregate for concrete curbing placed by machine-extrusion methods shall be Size No. 7, 57, 67 or 78, Subsection 903.22. Coarse aggregate for cement treated permeable base shall be Size No.

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Crushed vs Round aggregate in concrete Structural

Feb 03, 2012· In very high strength concrete mixtures where coarse aggregate bond is critical, angular cubicle shaped coarse aggregates generally give higher strengths than rounded smooth aggregates. Where extremely high strengths are not required, acceptable concrete can be made with different types of aggregates, with some variation in w/cm required to

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How Coarse Aggregate Affects Mix Design of Concrete? How

Proper grading of coarse aggregate can minimize the possibility of segregation, especially for higher workability and improves the compatibility of concrete. The coarse aggregate grading limits are given in ASTM C33/ C33M and IS 383 1970 table 2, Clause 4.1 and 4.2 for single size aggregate as well as graded aggregate.

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Recycled Concrete: The Pros and Cons Crushed Stone, Sand

Recycled Concrete Aggregate At-A-Glance. When a concrete sidewalk, road, parking lot, or structure needs to be excavated and replaced, the concrete is often discarded into a landfill. Because chunks of concrete are not biodegradable and are unable to decompose over time, the waste takes up a great deal of space and creates environmental concerns.

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Use of Crushed Bricks as Coarse Aggregate in Concrete

This study has found that crushed bricks can be used satisfactory as coarse aggregate for making concrete of acceptable strength characteristics. 2.The use of crushed bricks as coarse aggregate decreases the compressive strength of concrete about (11-87)% at age of 28 days according to the ratio of crushed bricks that used. 3.

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EXPERIMENTAL INVESTIGATION FOR RECYCLED COARSE

Properties of Coarse Aggregate(Recycled and Natural) Particle Size Distribution The result of sieve analysis carried out as per IS 2386 for different types of crushed recycled concrete aggregate and natural aggregates. It is found that recycled coarse aggregate are reduced to

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Aggregates Cement

Coarse aggregates are any particles greater than 0.19 inch, but generally range between 3/8 and 1.5 inches in diameter. Gravels constitute the majority of coarse aggregate used in concrete with crushed stone making up most of the remainder. Natural gravel and sand are usually dug or dredged from a pit, river, lake, or seabed.

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Products-Coarse-Aggregate Capitol Aggregates

Coarse Aggregate. Crushed stone is created through the mining and crushing of rock. The rock is crushed into several different graded sizes for use in applications including ready mix concrete, asphalt and decorative stone. Gravel is created by river erosion, resulting in smooth and rounded products. Finished products can be either smooth and