### How to Calculate Quantities of Cement, Sand and …

The ratio of dry volume to the wet volume of concrete is 1.54. So 1.54 Cum of dry materials (cement, sand and aggregate) is required to produce 1 Cum of concrete. Volume of Cement required = 1/(1+2+4) X 1.54 = 1/7 X 1.54 = 0.22 Cum. Volume of Sand required = 2/7 X 1.54 = 0.44 Cum or 15.53 cft

Read More...### Influence of size of aggregates on the Compressive ...

mix of 1:2:4 with a water/cement ratio of 0.5 was used throughout the experiment. Tests that were conducted included the slump and compressive strength tests. Fresh concrete batches were formulated from each of the coarse aggregate sizes and the …

Read More...### Aggregates for Concrete - Memphis

Range of particle sizes found in aggregate for use in concrete. (8985) Fig. 5-5. Making a sieve analysis test of coarse aggregate in a laboratory. (30175-A) C oarse aggregate S ize N o. 57. Fine sand. Optional, see text. 150 µ m 300 m 600 No. 100 No. 50 No. 30 m 1.18 mm No. 16 2.36 mm No. 8 4.75 mm No. 4 12.5 mm 25 mm 37.5 mm 1 / 2 in. 1 in. 1 ...

Read More...### IS 2386-1 (1963): Methods of Test for Aggregates for ...

2.5 12 6 3 2.4 Test Prodedure for Coarse and Fine Aggregate 2.4.1 The sample shall be brought to an air-dry condition before weighing and sieving. This may be achieved either by drying at room temperature or by heating at a temperature of 100" to 110°C. The air-dr)

Read More...### Which Size Is Best Aggregate For C 25 Concret

Influence of Aggregate Size on Concrete. the nominal maximum aggregate size from 1-1/2 in (38 mm) to 3/4 in (19 mm) for example will increase concrete shrinkage by about 25% 3 Smaller aggregate has a larger surAt a given water ratio within the range employed in most structural concrete smaller maximum sizes of aggregate will tend to produce higher concrete …

Read More...### Work Procedure for Cement Concrete Works For Mixes 1:2:4 ...

The proportion can be 1:2:4 (M15 concrete) or 1:1.5:3 for M20 concrete. The proportion of 1:2:4 concrete denotes the ratio of cement: sand: coarse aggregates by volume unless specified. Minimum compressive strength of …

Read More...### EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON …

increases with an increase in coarse aggregate size. However, most other studies disagree. Walker and Bloem (1960) and Bloem and Gaynor (1963) concluded that an increase in aggregate size results in a decrease in the compressive strength of concrete. Cook (1989) showed that, for compressive strengths in excess of 69 MPa (10,000 psi),

Read More...### SECTION 903-AGGREGATES

903.03-Coarse Aggregate for Concrete. Coarse aggregate for any type or class ofportland cement concrete shall consist of crushed stone, crushed slag, or crushed or uncrushed gravel unless otherwise specified. Coarse aggregate for portland cement concrete base and pavement shall be furnished in two sizes: Size No. 4 and Size No. 67, as shown in

Read More...### Aggregate Sizing Explained - Chaney Enterprises

There are seven standard sieves for fine aggregates ranging from No. 100 to 3/8" and 13 standard sieves for coarse aggregate ranging from No. 16 to 4". For example coarse aggregate has a standard grading requirement for each different size from #1 to #8. A #1 aggregate is a nominal size of 3 ½ to 1 ½ inches and a #8 aggregate is a nominal ...

Read More...### Concrete mix design « Civil Construction

Concrete mix is the heterogeneous mixture consisting of coarse aggregate, fine aggregate, cement and water as the main ingredients. Grade of concrete is the designation of the concrete mix which is indicated according to its cube compressive strength at 28 days. Concrete mix is categories into two types: nominal mix and design mix.

Read More...### Aggregate in Concrete - Concrete Network

If there is a deficiency in a locally available fine aggregate, concrete may benefit from the addition of air entrainment, additional cement, or a supplemental cementitious material (SCM) to address these shortcomings. Broad coarse-aggregate gradation ranges …

Read More...### Sieve Analysis of Fine and Coarse Aggregates

3.2.1 For field testing of portland cement concrete aggregate, it is not necessary to completely dry, but merely to surface dry, the coarse aggregate. 3.2.2 Dry limestone rock asphalt (LRA) samples at 140 ± 9°F (60 ± 5°C).

Read More...### Concrete Mix Design - Absolute Volume Method, US Units ...

Enter (from Table above) volume of coarse aggregate per unit volume of concrete = Enter specific gravity (Saturated Surface Dry, SSD) of coarse aggregate (if unknown, use 2.55 to 2.75 for normal weight aggregate) = Weight of coarse aggregate = lb/yd 3. Solid volume of coarse aggregate = ft 3

Read More...### [PDF] Effects of Coarse Aggregate Size on the Compressive ...

This study investigates the effect of aggregate size on the compressive strength of concrete. Two nominal mixes, that is, 1:2:4 and 1:3:6 were used in the study. Concrete cubes were produced with 6, 10, 12.5, 20 and 25 mm aggregates for the two nominal mixes and they were subjected to compressive strength test after curing for 7, 21, 28 and 56 days.

Read More...### Static size effect of recycled coarse aggregate concrete ...

Plain Portland cement P.O 42.5R is used in the test, which meets the Chinese standard for common Portland cement (GB175-2007), and its mineral components are presented in Table 2.Natural river sand with a nominal maximum size of 4.75 mm is used as the fine aggregate, which has an apparent density of 2590 kg/m 3 and a fineness modulus of 2.58. . Besides, local …

Read More...### Aggregates for Use In Concrete

2/12/2015 13 25 Aggregate Size Effects: • As the maximum size aggregate increases, the amount of paste needed for a given slump decreases. • The maximum aggregate size used in a concrete mix is dictated by the size of the structural member and the spacing between reinforcing steel. "Design & Control of Concrete Mixtures," 14

Read More...### Grading Of Aggregate | Ultimate Guide - Construction How

Source: ASTM Standard C33/C33M The second column in the table shows the aggregate size range that is always decided prior to use. For example, if we are to prepare a concrete mix using an aggregate sample that contains a maximum particle size of 63mm and a minimum particle size of 37.5mm, we'll look through the second row and the values present in …

Read More...### The Effect of Maximum Coarse Aggregate Size on the ...

210 28 8.126 2.408 364 16.2 Table 4. Maximum size of aggregates, ratio of sizes and the compressive strength of 28 day concrete. Compressive strength of 28 day concrete (N/mm 2) Maximum size coarse aggregate (mm) Maximum size of fine aggregate (mm) Ratio of maximum size of fine to size of coarse aggregate 23.7 10 2 0.20

Read More...### Influence of size and surface condition of distributing ...

1. Introduction. As a widely used construction material, concrete has a huge environmental impact due to the use of cement,,, which has very high carbon emission. In the conventional concrete, the total aggregate occupies approximately 70% of the per unit volume of concrete, and the coarse aggregate volume fraction is around 40%.The industrial solid …

Read More...### coarse aggregate used in road construction

Types of Aggregates Used in Road Construction (10. The aggregate with grain size below 4.75 mm is termed as fine aggregates. The percentage of all type deleterious materials in fine aggregate should not exceed 5 %. 2.Coarse Aggregate: This aggregates whose particles are larger than 4.75 mm are termed as coarse aggregates.

Read More...### SECTION 703 - AGGREGATES

Tar get fineness modulus shall be designat ed between 2.4 and 3.1. Fineness modulus using No. 4, 8, 16, 30, 50, and 100 sieves shall be computed. Fineness modulus shall be maintained at not more than 0.2 from target. 703.01 703.02 Coarse Aggregate for Portland Cement Concrete. Coarse aggregate

Read More...### Standard Speciﬁcation for Concrete Aggregates1

1). If not stated, the 1.0 % limit shall apply, 4.2.5 When the order is for coarse aggregate: 4.2.5.1 The grading (size number) (see 10.1 and Table 2), or alternate grading as agreed between the purchaser and aggre-gate supplier. 4.2.5.2 The class designation (see 11.1 and Table 3), 4.2.5.3 Whether the restriction on reactive materials in 11.2 ...

Read More...### Standard Classiﬁcation for Sizes of Aggregate for …

1.1 This classiﬁcation deﬁnes aggregate size number desig-nations and standard size ranges for mechanical sieve analyses of coarse aggregate and screenings for use in the construction and maintenance of various types of highways and bridges. 1.2 Units—The values stated in SI units are to be regarded as standard.

Read More...### size of coarse aggregate for concrete 1 2

size of coarse aggregate for concrete 1 2 4. Aggregate in Concrete The Concrete Network. The maximum size of coarse aggregate that can be used in a mix depends on the size, shape, and reinforcing of a member, based on these "not-to-exceed" guidelines (see Photos 5 and 6): 3/4 of the clear spacing between rebar or between rebar and forms (cover distance) 1/3 the depth …

Read More...### 40911 - 1/2" X #4 - Concrete Materials

Concrete Materials Product #40911. Description. Color: Tifton Pink (pink, light red, light purple) Shape: Angular/Cubical Size: US Sieve 1/2″ to #4 Weight: Approx. 1.4 tons per loose cubic yard Source: Sioux Falls Quarry, Sioux Falls SD Available at: Sioux Falls Quarry Applications. Component in asphalt concrete; Coarse aggregate in Portland Cement Concrete

Read More...### WHAT ARE THE PROPERTIES OF AGGREGATES FOR CONCRETE ...

For the preparation of economical concrete mix on should use largest coarse aggregates feasible for the structure. IS-456 suggests following recommendation to decide the maximum size of coarse aggregate to be used in P.C.C & R.C.C mix. Maximum size of aggregate should be less than. One-fourth of the minimum dimension of the concrete member.

Read More...### calculation of coarge aggregate

Coarse Aggregate required = 4*0.036 ~ 0.14 cum =0.144*1450 = 209 kg Considering water – cement ratio (w/c) of 0.55, water = 0.55*50 kgs = 27.5 kg Step-2: Calculate Material Requirement for Producing 1 Cum Concrete The volume proportion in weight turns out to be

Read More...### Plain cement concrete (PCC)- Materials, Properties, and Mixing

Generally M10 (1:3:6) or M15 (1:2:4) mix is used. The measurement of materials is done by volume batching or weight batching. Coarse aggregate and sand shall be measured by measuring box in volume batching of size 30 cm x 30 cm x 38 cm equivalent to one bag cement of 1/30 m3 or 0.035 m3. On the basis of dry volume, sand is measured.

Read More...### What nominal maximum sizes of aggregate are …

A. According to 26.4.2.1 (a) (5) of ACI 318-19, nominal maximum size of coarse aggregate shall not exceed the least of (i), (ii), and (iii): (i) one-fifth the narrowest dimension between sides of forms. (ii) one-third the depth of slabs. (iii) three-fourths the minimum specified clear spacing between individual reinforcing bars or wires ...

Read More...### Size of aggregate used in RCC, PCC, slab, Road, Bridge ...

When the aggregate is sieved through 4.75 mm size the aggregate is retained is known as coarse aggregate. Larger than 4.75mm size is coarse sand or aggregate, so coarse aggregate size arranging between 5mm to 256 mm or more. You Can Follow me on Facebook and Subscribe our Youtube Channel. You should also visits:-

Read More...### What is the effect of coarse aggregate size in compressive ...

(1) Coarse aggregate size is directly proportional to the slump (workability) of a fresh concrete with constant water cement ratio. (2) Compressive strength of a concrete increases with increase in coarse aggregate size. Coarse aggregate size 13.2 mm, 19 mm, 25 mm, and 37.5 mm gave average compressive strength of 21.26 N/mm2, 23.41 N/mm2, 23.66 ...

Read More...### Different Types & Sizes of Aggregate for Concrete ...

Coarse aggregates are particulates that are greater than 9.5mm. The usual range employed is between 9.5mm and 37.5mm in diameter. Typically the most common size of aggregate used in construction is 20mm. A larger …

Read More...### Effects of Coarse Aggregate Size on the Compressive ...

This study investigates the effect of aggregate size on the compressive strength of concrete. Two nominal mixes, that is, 1:2:4 and 1:3:6 were used in the study. Concrete cubes were produced with 6, 10, 12.5, 20 and 25 mm aggregates for the two nominal mixes and they were subjected to compressive strength test after curing for 7, 21, 28 and 56 ...

Read More...### CEMENT CONCRETE MIX DESIGN - Dronacharya

parts or ratios of cement, fine and coarse aggregates. For e.g., a concrete mix of proportions 1:2:4 means that cement, fine and coarse aggregate are in the ratio 1:2:4 or the mix contains one part of cement, two parts of fine aggregate and four parts of coarse aggregate. The proportions are either by volume or by mass. The water-cement

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