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coarse aggregate size pptx

coarse aggregate size pptx

Absorption of Coarse Aggregate.pptx - ABSORPTION

Materials which are large to be retained on 4.7 mm sieve size are called coarse aggregates, and its maximum size can be up to 63 mm.

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Aggregates for Concrete

2014-7-1  Coarse aggregates typically consist of gravels, crushed stone, or a combination of both, with particles predominantly larger than 5 mm (0.2 in.) and generally between 9.5 mm and 37.5 mm (3⁄8 in. and 1½ in.). Close to half of the coarse aggregates used in concrete in North America are gravels.

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PowerPoint Presentation

2020-4-9  Coarse aggregate material retained on a sieve with 4.75 mm openings . Fine aggregate material passing a sieve with 4.75 mm openings. Traditional. Maximum aggregate size – the largest sieve size that allows all the aggregates to pass. Nominal maximum aggregate size – the first sieve to retain some aggregate, generally less than 10%. 25. AGGREGATE SIZES

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1 Batching of aggregates for concrete.pptx Rock

2014-10-19  ASTM C 33 Fine aggregate7 standard sieves with openings from 150 m to 9.5 mm (No. 100 to 3/8 in.) Coarse aggregate13 sieves with openings from 1.18 mm to 100 mm (0.046 in. to 4 in.) Range of Particle Sizes Fine-Aggregate Grading Limits Sieve size Percent passing by mass 9.5 mm (3/8 in.) 100 4.75 mm (No. 4) 95 to 100 2.36 mm (No. 8) 80 to 100 1.18 mm (No. 16) 50 to 85 600 m (No. 30) 25 to 60 300 m (No. 50) 5 to 30 (AASHTO 10 to 30) 150 m (No. 100) 0 to 10 (AASHTO 2 to 10) Maximum Size

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PowerPoint Presentation

2020-3-12  The performance of beams is analyzed based on normalized shear at the first flexure crack , the first shear crack, and influence of type of concrete and parameters related to coarse aggregate . General trend shows an increase in the ultimate shear with maximum size of coarse aggregate

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Recycled Concrete Aggregates

2019-11-20  Typical Coarse Aggregate. RCA. Introduction. Concrete industry projected to be a $100 billion dollar industry by 2015. ... Concrete is molded into cylinders in which the length is twice the diameter and the diameter is three times the maximum aggregate size. After 28 days are given for proper time to cure, the cylinders are tested ...

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Mix design-ppt - SlideShare

2015-10-13  Determination of coarse and fine aggregate contents Specified max. size of aggregate = 20 mm Corresponding entrapped air = 2% CONCRETE MIX DESIGN 74 fa = 546 kg/m3 , Ca = 1188 kg/m3 75. Final Mix Proportions Water Cement FA CA 191.6

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Class ACI Mix Design Example - University of Memphis

2021-1-14  between 3 and 4 in. and the maximum aggregate size should not exceed 1 in. The coarse and fine aggregates in the storage bins are wet. The properties of the materials are as follows: Cement : Type I, specific gravity = 3.15 Coarse Aggregate: Bulk specific gravity (SSD) = 2.70; absorption capacity = 1.1%; dry-rodded unit weight = 105 lb./ft.3

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我国钢筋混凝土结构的现状及发展.docx-全文可读 - book118

2018-8-25  Coarse aggregate: during the construction of reinforced concrete, the maximum size of the coarse aggregate and structure reinforcement, concrete pouring process, increase of aggregate diameter can reduce water consumption, the shrinkage of concrete and

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The Soil Water Characteristic - Introduction and

2018-5-7  • Soil structure ( b, aggregate size distribution) a) important at low suctions, 0 to 50 kPa b) Capillary effects • Clay content a) Positively related to surface area of soil particles b) Positively related to water adsorption c) Dominant factors at high suctions • Soil organic matter a) Reduces b b) Increases water retention at low suctions

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Recycled Concrete Aggregates

2019-11-20  Typical Coarse Aggregate. RCA. Introduction. Concrete industry projected to be a $100 billion dollar industry by 2015. ... Concrete is molded into cylinders in which the length is twice the diameter and the diameter is three times the maximum aggregate size. After 28 days are given for proper time to cure, the cylinders are tested ...

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PowerPoint Presentation

2020-3-12  General trend shows an increase in the ultimate shear with maximum size of coarse aggregate from 12 mm to 19mm. The ultimate shear resistances of SCFRC beams are comparable to those of NC beams made with same size of Coarse aggregate, though SCFRC have lower coarse aggregate content than NC and had similar compressive strength.

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Planning for slab-on-ground placement

2016-8-2  Coarse aggregate— If most of the particles are larger than . about 1/4 in. (6 mm), the aggregate is called coarse aggregate. It may be either gravel or crushed material. Gravel usually has smoothly rounded particles, whereas crushed stone has rough, angular surfaces. Some gravel pieces, however, may be crushed to size from large pieces of gravel.

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Slide 1

2013-7-29  Size of Coarse Aggregate. Mixing. FIBRE REINFORCED CONCRETE. 1. Relative Fibre Matrix Stiffness. Modulus of elasticity of matrix must be much lower than that of fibre. E.g. steel, glass, carbon. Fibres with low modulus of elasticity- nylon, polypropylene.

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Class ACI Mix Design Example - University of Memphis

2021-1-14  The coarse aggregate will occupy: 3 3 0.68 27ft. yd. 3 3 18.36ft. yd. Value from Table 4 The OD weight of the coarse aggregate 3 33 18.36 105ft. lb. yd. ft. 3 1,928 lb. yd. Dry-Rodded Unit Weight water (ft3) Cement (ft3) Coarse Aggregate (ft3) Air (ft3) Class ACI Mix Design Example Step 8. Estimation of fine aggregate content by the absolute ...

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ACI Mix Design Equations - University of Memphis

2021-1-14  The coarse aggregate will occupy: 3 3 %coarse aggregate × 27 ft. yd. CA Value from Table 4 The OD weight of the coarse aggregate 3 dryrodded lb. OD ft. CA CA Dry-Rodded Unit Weight ACI Mix Design Equations Step 8. Estimation of fine aggregate content by the absolute volume method. Water: water/62.4 lb./ft.3

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Forms Aggregates - Louisiana

2021-6-20  File Size Co Aggr - Source Appr 279: Coarse Aggregate for Source Approval (279) 86 KB Co Aggr - Source Appr 502: Course Aggregate for Source Approval (502) 95 KB Fine Aggr - Source Appr 278: Fine Aggregate for Source Approval: 82 KB 03-22-0745: 03-22-0745 Aggregate Test Report ...

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The Soil Water Characteristic - Introduction and

2018-5-7  • Soil structure ( b, aggregate size distribution) a) important at low suctions, 0 to 50 kPa b) Capillary effects • Clay content a) Positively related to surface area of soil particles b) Positively related to water adsorption c) Dominant factors at high suctions • Soil organic matter a) Reduces b b) Increases water retention at low suctions

Get Price

我国钢筋混凝土结构的现状及发展.docx-全文可读 - book118

2018-8-25  Coarse aggregate: during the construction of reinforced concrete, the maximum size of the coarse aggregate and structure reinforcement, concrete pouring process, increase of aggregate diameter can reduce water consumption, the shrinkage of concrete and

Get Price

美国材料试验协会ASTM C1761C1761M-15 Standard ...

2020-9-23  美国材料试验协会ASTM C535-12 Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.pdf 美国材料试验协会ASTM C597-09 Standard Test Method for Pulse Velocity Through

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Recycled Concrete Aggregates

2019-11-20  Typical Coarse Aggregate. RCA. Introduction. Concrete industry projected to be a $100 billion dollar industry by 2015. ... Concrete is molded into cylinders in which the length is twice the diameter and the diameter is three times the maximum aggregate size. After 28 days are given for proper time to cure, the cylinders are tested ...

Get Price

Planning for slab-on-ground placement

2016-8-2  Coarse aggregate— If most of the particles are larger than . about 1/4 in. (6 mm), the aggregate is called coarse aggregate. It may be either gravel or crushed material. Gravel usually has smoothly rounded particles, whereas crushed stone has rough, angular surfaces. Some gravel pieces, however, may be crushed to size from large pieces of gravel.

Get Price

Slide 1

2010-11-19  Particle Size Distribution: Sieve analysis is carried out as per IS 2386 for different types of crushed recycled concrete aggregates. It is found that recycled coarse aggregate are reduced to various sizes during the process of crushing and sieving (by a sieve of 4.75mm), which gives best particle size

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(PPT) AGGREGATES AND OTHERS Aniket Patel -

Most commonly used fine aggregates are sand, crushed stone, ash or cinder and surki. COARSE AGGREGATES Coarse aggregates are retained on 4.75mm(#4) sieve. Aggregates the size of whose particle is bigger than 4.75 mm but smaller than 7.5 mm are known as coarse aggregates.

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Road Aggregates - SlideShare

2017-1-1  PROPERTIES OF SOIL AGGREGATE MIX Density as well as CBR increases as size of aggregate increased but optimum soil content decreased. 16. PROPERTIES OF SOIL AGGREGATE MIX Permeability: The permeability characteristics of soil aggregate mixtures are dependent upon : 1) Grain size distribution. 2) Type of coarse aggregate

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sampling pptx - H - Muhadharaty

2019-2-20  For coarse aggregate and mixed aggregate, the minimum width of the individual chutes shall be approximately 50 % larger than the largest particles in the sample to be split. For dry fine aggregate in which the sample will pass the 9.5-mm (3⁄8-in.) sieve , a splitter having chutes 12.5 to

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The Soil Water Characteristic - Introduction and

2018-5-7  • Soil structure ( b, aggregate size distribution) a) important at low suctions, 0 to 50 kPa b) Capillary effects • Clay content a) Positively related to surface area of soil particles b) Positively related to water adsorption c) Dominant factors at high suctions • Soil organic matter a) Reduces b b) Increases water retention at low suctions

Get Price

LONG-TERM EFFECT OF DIFFERENT PARTICLE SIZE

The coarse aggregate used was crushed gravel with a nominal maximum size of 12.5 mm. Washed river sand with a maximum size of 4.75 mm was used for fine aggregates. Physical tests of aggregates were carried out following the ASTM designations, and the results are shown in Table 2 .

Get Price

我国钢筋混凝土结构的现状及发展.docx-全文可读 - book118

2018-8-25  Coarse aggregate: during the construction of reinforced concrete, the maximum size of the coarse aggregate and structure reinforcement, concrete pouring process, increase of aggregate diameter can reduce water consumption, the shrinkage of concrete and

Get Price

美国材料试验协会ASTM C1761C1761M-15 Standard ...

2020-9-23  美国材料试验协会ASTM C535-12 Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.pdf 美国材料试验协会ASTM C597-09 Standard Test Method for Pulse Velocity Through

Get Price

Slide 1

2010-11-19  Particle Size Distribution: Sieve analysis is carried out as per IS 2386 for different types of crushed recycled concrete aggregates. It is found that recycled coarse aggregate are reduced to various sizes during the process of crushing and sieving (by a sieve of 4.75mm), which gives best particle size

Get Price

Recycled Concrete Aggregates

2019-11-20  Typical Coarse Aggregate. RCA. Introduction. Concrete industry projected to be a $100 billion dollar industry by 2015. ... Concrete is molded into cylinders in which the length is twice the diameter and the diameter is three times the maximum aggregate size. After 28 days are given for proper time to cure, the cylinders are tested ...

Get Price

Planning for slab-on-ground placement

2016-8-2  Coarse aggregate— If most of the particles are larger than . about 1/4 in. (6 mm), the aggregate is called coarse aggregate. It may be either gravel or crushed material. Gravel usually has smoothly rounded particles, whereas crushed stone has rough, angular surfaces. Some gravel pieces, however, may be crushed to size from large pieces of gravel.

Get Price

Aggregates - AAPA Q

2016-4-12  Evaluation – Fine Aggregate GQuality controlled by – the selection of the source – particle size distribution – particularly the percentage passing 75µm – Plasticity Index (LL/PL) GFor crushed fines acceptance also based on testing of the coarse aggregate Evaluation – Fillers Depends on the type of filler Types of filler

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Slide 1

2013-7-29  Size of Coarse Aggregate. Mixing. FIBRE REINFORCED CONCRETE. 1. Relative Fibre Matrix Stiffness. Modulus of elasticity of matrix must be much lower than that of fibre. E.g. steel, glass, carbon. Fibres with low modulus of elasticity- nylon, polypropylene.

Get Price

PowerPoint Presentation

2019-1-17  Every American uses about 10 tons of aggregate per year. Not like a manufacturing industry however. We can’t selectively make one type or size of aggregate. When we make coarse aggregate, we also make fines and base at the same time

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sampling pptx - H - Muhadharaty

2019-2-20  For coarse aggregate and mixed aggregate, the minimum width of the individual chutes shall be approximately 50 % larger than the largest particles in the sample to be split. For dry fine aggregate in which the sample will pass the 9.5-mm (3⁄8-in.) sieve , a splitter having chutes 12.5 to

Get Price

new ppt 1 rubber waste.pptx Construction Aggregate ...

2021-5-10  The grading of fine (size 5mm) aggregates are generally required to be within the limits specified in BS 882: 1992. Grading, or particle size distribution, is an important feature of aggregate and is determined by a sieve analysis.

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ACI Mix Design Equations - University of Memphis

2021-1-14  The coarse aggregate will occupy: 3 3 %coarse aggregate × 27 ft. yd. CA Value from Table 4 The OD weight of the coarse aggregate 3 dryrodded lb. OD ft. CA CA Dry-Rodded Unit Weight ACI Mix Design Equations Step 8. Estimation of fine aggregate content by the absolute volume method. Water: water/62.4 lb./ft.3

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LONG-TERM EFFECT OF DIFFERENT PARTICLE SIZE

The coarse aggregate used was crushed gravel with a nominal maximum size of 12.5 mm. Washed river sand with a maximum size of 4.75 mm was used for fine aggregates. Physical tests of aggregates were carried out following the ASTM designations, and the results are shown in Table 2 .

Get Price