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design of normal strength concrete mixtures with recycled

design of normal strength concrete mixtures with recycled

Design of Normal Strength Concrete Mixtures with Recycled ...

This paper investigates the design of normal strength concrete mixtures that use recycled concrete aggregates as replacement for virgin natural aggregates. Three mix design methods utilizing direct weight replacement, equivalent mortar replacement, and direct volume replacement are compared based on concrete workability, compressive strength ...

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Design of Normal Strength Concrete Mixtures with Recycled ...

Apr 26, 2012  This paper investigates the design of normal strength concrete mixtures that use recycled concrete aggregates as replacement for virgin natural aggregates. Three mix design methods utilizing direct weight replacement, equivalent mortar replacement, and direct volume replacement are compared based on concrete workability, compressive strength ...

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Design of Normal Strength Concrete Mixtures with Recycled ...

Design of Normal Strength Concrete Mixtures with Recycled Concrete Aggregate Adam M. Knaack, 1 Yahya C. Kurama, 2 Andrew J. Ziccarelli, 3 and Matthew C. Sushinsky 4 1 Ph.D. Student, Civil Eng. and Geological Sciences, Univ. of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, IN 46556; email: [email protected]

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Design of Concrete Mixtures with Recycled Concrete Aggregates

Design of Concrete Mixtures with Recycled Concrete Aggregates. This paper investigates the workability, compressive strength, and elastic modulus of normal-strength concrete with recycled concrete aggregate (RCA) as replacement for coarse natural

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Optimization of normal and high strength recycled ...

Nov 01, 2017  Optimization of normal and high strength recycled aggregate concrete mixtures by using packing model. ... Concrete mix design. ... It means that the normal strength concrete absorbs water by capillarity with a higher rate than the high strength concrete. Another important aspect is that the C65 concrete class reaches the saturation stage faster ...

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Design of Concrete Mixtures with Recycled Concrete Aggregates

Design of Concrete Mixtures with Recycled Concrete Aggregates. This paper investigates the workability, compressive strength, and elastic modulus of normal-strength concrete with recycled concrete aggregate (RCA) as replacement for coarse natural

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Design of Concrete Mixtures with Recycled Concrete Aggregates

Sep 01, 2013  Title: Design of Concrete Mixtures with Recycled Concrete Aggregates Author(s): Adam M. Knaack and Yahya C. Kurama Publication: Materials Journal Volume: 110 Issue: 5 Appears on pages(s): 483-494 Keywords: compressive strength; mixture design; modulus of elasticity; mortar; recycled concrete aggregate; slump; workability Date: 9/1/2013 Abstract: This paper investigates the

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Rheological and Mechanical Behavior of Concrete Mixtures ...

Jul 11, 2012  This paper investigates the workability, compressive strength, and elastic modulus of normal strength concrete mixtures that use recycled concrete aggregates (RCA) as replacement for virgin coarse natural aggregates. ... Design of Normal Strength Concrete Mixtures with Recycled Concrete Aggregates. Structures Congress 2011 April 2012 .

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Effect of recycled concrete aggregates on strength and ...

“Design of Normal Strength Concrete Mixtures with Recycled Concrete Aggregates.” ACI Materials Journal 110 (5): 483–493. Knaack, A. M., and Y. C. Kurama. 2015. “Sustained Service-Load Behavior of Concrete Beams with Recycled Concrete Aggregates.” ... Knaack, A. M., and Y. C. Kurama. 2015. “Creep and Shrinkage of Normal Strength ...

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Designing and Proportioning Normal Concrete Mixtures ...

Normal Concrete Mixtures SELECTING MIX CHARACTERISTICS Before a concrete mixture can be proportioned, mixture characteristics are selected based on the intended use of the concrete, the exposure conditions, the size and shape of building elements, and the physical properties of the concrete (such as frost resistance and strength) required

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New Mixture Proportioning Method for Concrete Made with ...

Oct 10, 2009  New method of mixture proportioning is proposed for concrete made with coarse recycled concrete aggregates (RCA). The proposed method, dubbed the “equivalent mortar volume” method, is predicated on the fact that RCA is a two-phase material comprising mortar and natural aggregate; therefore, when proportioning a concrete mixture involving RCA, one must account for

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Prediction of Shear Strength of Reinforced Recycled ...

Twelve beam specimens with the same compression strength, four concrete mixtures using different percentages of recycled coarse aggregates (0%, 25%, 50% and 100%) and three different transverse ...

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Use of Mixture Design Approach for the Optimization and ...

Jul 30, 2021  A compromise between three responses including setting time, compressive strength and flexural strength was successfully determined based on response surface methodology of mixture design approach. The optimum proportions of different constituents are as follows: 85.3% of cement, 3% of purified phosphogypsum, 6.7% of silica fume and 5% of fly ash.

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Design of Normal Concrete Mixtures Using Workability ...

The method described in this work covers normal concrete mixes, which include those made of normal-weight aggregate, normal strength range (15 to 45 MPa, as in ACI 211.1), do not contain special materials such as fibers, have a normal degree of workability ranging from low to high (25 to 175 mm slump, as in ACI 211.1), always contain coarse and ...

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Durability of Structural Recycled Aggregate Concrete ...

Concrete mixtures were designed for two classes of compressive strength: normal strength with 35 MPa and high strength with 60 MPa. All mixtures were produced with 30% of paste (sum of the free mixing water, cement and superplasticizer) in relation to the total volume of concrete.

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Comparative study of M35 and M40 grades of concrete by

A.M. kannak et.al. (2013) [6] Studied the design of normal strength concrete mixtures that use recycled concrete aggregates as replacement for virgin natural aggregates. Three mix design

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Top PDF Experimental Analysis of Concrete by Recycled ...

Basic modifications in all mixture are determined and their outcomes on M30 M40 Grade concrete are mentioned at length. Basic concrete properties like compressive strength, flexural strength, workability etc. are determined for distinctive combinations of recycled combination with natural combination.

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Rheological and Mechanical Behavior of Concrete Mixtures ...

This paper investigates the workability, compressive strength, and elastic modulus of normal strength concrete mixtures that use recycled concrete aggregates (RCA) as replacement for virgin coarse natural aggregates. To provide a regional geographical representation of the variability in material quality and properties, a total of 144 mixtures with 16 different RCA sources are used in the ...

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Recycled Concrete Aggregate Research Papers - Academia

design. The waste concrete as RCA conserves virgin aggregates, reduces the ... [1,2]. The recycling consists of crushing old concrete into aggregates, and then processing it into new mixture using recycled aggregates with specified sizes [3,4]. ... demolished normal strength concrete and demolished RPC. The specimens were prepared using 25%, 50 ...

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RECYCLED TIRES AS COARSE AGGREGATE IN CONCRETE

Two mixtures with 10% coarse aggregate replaced by tire chips and normal cement content had the best performance. The workability was comparable to the control mixture, and the air content reached 6%. At 28 days of age, the average compressive strength of the two mixtures was 4735 psi.

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Recycled Concrete Aggregates

"Designing and Proportioning Normal Concrete Mixtures." Design and Control of Concrete Mixtures. Skokie: Portland Cement Association., 2002. Print. 4. MacDonald, Kevin. "Crushed Concrete." Concrete Construction. Haney Wood, 30 July 2011. ... Daniel Y. "Compressive Strength of Concrete Using Recycled Concrete Aggregate as Complete Replacement of ...

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Use of Mixture Design Approach for the Optimization and ...

Jul 30, 2021  A compromise between three responses including setting time, compressive strength and flexural strength was successfully determined based on response surface methodology of mixture design approach. The optimum proportions of different constituents are as follows: 85.3% of cement, 3% of purified phosphogypsum, 6.7% of silica fume and 5% of fly ash.

get price

Rheological and Mechanical Behavior of Concrete Mixtures ...

Mar 29, 2012  Rheological and Mechanical Behavior of Concrete Mixtures with Recycled Concrete Aggregates. This paper investigates the workability, compressive strength, and elastic modulus of normal strength concrete mixtures that use recycled concrete aggregates (RCA) as replacement for virgin coarse natural aggregates.

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Prediction of Shear Strength of Reinforced Recycled ...

Twelve beam specimens with the same compression strength, four concrete mixtures using different percentages of recycled coarse aggregates (0%, 25%, 50% and 100%) and three different transverse ...

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Normal Concrete Mix Design based on the Isoresponse of ...

Jul 19, 2021  Many methods of normal concrete mix design produce the same proportion of cement and water content of concrete for different specific surface area of aggregate. Therefore, they often produce inappropriate workability of fresh concrete in the first batch. In the end, several trial batch adjustments are required by increasing or decreasing cement paste for reaching the required slump.

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PROPERTIES AND MIX DESIGNATIONS

due to the increased workability of the mixture that is a result of the high cement content. The lower slump concrete with the additional cement is just as workable as the normal concrete. 5-694.215 VOLUME CHANGE Concrete continually undergoes changes in its volume from one cause or another throughout its service life.

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Top PDF Experimental Analysis of Concrete by Recycled ...

Basic modifications in all mixture are determined and their outcomes on M30 M40 Grade concrete are mentioned at length. Basic concrete properties like compressive strength, flexural strength, workability etc. are determined for distinctive combinations of recycled combination with natural combination.

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Durability - Portland Cement Association

Concrete can withstand these effects when properly designed. The Specifier’s Guide for Durable Concrete, EB221 and Design and Control of Concrete Mixtures, EB001.15 are intended to provide sufficient information to allow the practitioner to select materials and mix design parameters to achieve durable concrete in a variety of environments.

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Concrete Mix Design Stonemont Solutions

StonemontQC has many features to facilitate development of concrete mixtures including support for ACI and other design methods. Aggregate mix components can be easily updated or substituted in all mixes. Supports ACI and other mix design methods. Support a manual proportion method where a user enters weights for each component.

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Rheological-dynamical model of concrete and its ...

Nov 18, 2020  One mixture made of normal (N) concrete and six concrete mixtures with recycled aggregate were analyzed. The recycled aggregates were generated from concrete demolished waste (BB), two different types of recycled bricks (ZB1 and ZB2) and recycled calcium silicate bricks (KSB) with fraction size: 2–8 mm and 8–16 mm.

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Performance Evaluation of Recycled Asphalt Mixtures ...

Jul 23, 2020  Construction and demolition waste contain large amount of concrete and bricks. To identify its feasibility of applying in asphalt stabilized gravel mixtures as pavement base, this paper carried out researches on properties of recycled asphalt mixture (RAM) by laboratory testing, under different contents of recycled aggregates (RA) and proportions of bricks to concrete.

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm ('h in.) or 19 mm (:Y. in.), and coarse aggregate contents with aggregate volume factors (ACI 211.1-91) of0.75 and ... while the fracture energy of normal-strength concrete increases with

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Report of Recycled Concrete Aggregates

Aug 08, 2019  Recycling these construction wastes is better management technique as it can lead to the environmental and economic benefits. b) The compressive strength of concrete containing 50% RCA has strength close to normal concrete. The compressive strength of the concrete with 50% replacement of RCA has the highest compressive strength at 7 days and 28 ...

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