Properties Result value Fineness Modulus 10 mm Aggregate (10mm CA) 5.956 20 mm Aggregate(20mm CA) 7.012 Combined Coarse Aggregate (CCA) 6.548 Water absorption (%) 0.80 Specific Gravity 2.60 Figure 2 – Grading curve of the combined coarse aggregate. 4) Stone Dust- Stone dust obtained from the KABRAI
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the action of wind or water, while manufactured crushed fine aggregate and crushed stone coarse and fine aggregate are produced by crushing natural stone. Crushing, screening, and washing may be used to process aggregates from either sand and gravel deposits or stone quarries. Aggregates may be produced from igneous, sedimentary, or metamorphic
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Within the suitability number rated as excellent (0–10), a decreasing trend of angle of internal friction φ was observed with the increasing values of suitability number. Both the suitability number and fineness modulus was also found to be dependent on various combinations of grain size parameters like D 10, D 20, D 30, D 50, and D 60.
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These values are also in line with those in the literature. For example, [10] and [1] obtained the values of 1296kg/m3 and 1230kg/m3 for quarry dust respectively. Table 2: Summary of physical properties of fine aggregates Property Quarry dust Laterite Specific gravity 2.52 2.65 Bulk density (kg/m3) 1588 1891 Fineness modulus 3.57 2.82
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ness modulus were observed only for the S N value between 0 and10, and between 20 and 30. A strong relationship (R2 = 0.933) was observed as that can be seen from Fig. 3. Besides, Fig. 4 shows the relationship between suitability number and fineness modulus for the uniform gradation of sand. A nonlinear relationship can be
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This means that a thinner pavement structure could be used on a soil with a higher CBR value than on a soil with a low CBR value. Generally, clays have a CBR value of 6 or less. Silty and sandy soils are next, with CBR values of 6 to 8. The best soils for road-building purposes are the sands and gravels whose CBR values normally exceed 10.
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The construction industry relies heavily on the sand. In construction, the fineness modulus of sand is an important parameter. It impacts the relative proportions in the mix, the workability, the economy, the porosity, and the strength of the concrete. This standard specifies that sand 's fineness modulus should not be less than 2.3 and not …
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The fineness modulus is the sum of the total percentages of a sample of aggregates retained on each of a specified series of sieves, and the sum divided by 100 [88]. The …
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It is defined as the ratio of the stress along an axis over the strain along that axis in the range of elastic soil behaviour. ... Gravels/Sand well-graded: 30-80: 80-160: 160-320: SP: Sand, uniform: 10-30: 30-50: 50-80: GM, SM: Sand/Gravel silty: 7-12: 12-20: 20-30: Typical values of Young's modulus for cohessive material (MPa) (based on ...
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So, in our case, it is Fine Sand. Also, Read – How to Calculate Cement, Sand and Aggregate Quantity in Concrete? Value of fineness Modulus of Sand. Type of Sand: Fineness Modulus: Fine sand: 2.2 – 2.6: Medium Sand: 2.6 – 2.9: Coarse Sand: 2.9 – 3.2: Zone of Sand As Per IS: 383-1970. IS Sieve: Zone 1:
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This article presents the consideration of relation between compressive strength and rebound number of concrete cooperating with quarry dust as fine aggregate (natural river sand was replaced by ...
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The slump plan for the mix design is 10 cm. For a maximum aggregate size of 40 mm, a 10 cm slump, and grading of sand in zone I, the proportion of sand is 43.5%. The proportion of sand less than 43.5% increases the value of slump, and the proportion of sand more than 43.5% decreases the value of slump.
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Fine aggregate is the sand used in mortars. Coarse aggregate is the broken stone used in concrete .The coarse aggregate unless mixed with fine aggregate serves no purpose in cement works. The size of fine aggregate is limited to a maximum of 4.75 mm gauge beyond which it is known as coarse aggregate. Fineness Modulus of Aggregates
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Sand (fine aggregate) has a fineness modulus, which is an index number that gauges the sand's average particle size. ... Values Fineness Modulus of Fine Aggregate: The fineness modulus ranges from 2.0 to 3.5mm, Its fineness moduli more than 3.2 should not be called fine aggregates. ... Type of sand: Fineness modulus range: Fine aggregates: 2.2 ...
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The particles that stay on a 0.075 mm screen after passing through a 4.75 mm filter are known as fine aggregates. The particles that remain on a 4.75 mm sieve are known as coarse aggregates. 3: Materials: Fine aggregates used in concrete include sand, surki, stone screens, burnt clays, cinders, fly ash, etc.
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k s = plate-load test value of modulus of subgrade reaction kN/m 2 /m, using square plate ... Fine or slightly compacted soil: 15000 – 30000: Well compacted sand: ... 30000 – 60000: Loam or clay (dry) …
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Specifically, typical values of A ranges from 8 (low slump) to 14 (high slump) [180]; in the present work, A was set equal to 10, considering the crushed nature of the silicon nitride powder as ...
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The fineness modulus of fine aggregate is 2.78 and of coarse aggregate is 7.82 and the desired fineness modulus of mixed aggregate is 6.14. What is the amount of fine aggregate to be mixed with one part of coarse aggregate? ... if the coarse aggregate is increased at the expense of sand, maintaining total aggregate cement ratio constant, …
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Limits of Fineness Modulus. Fineness modulus of coarse aggregate varies from 5.5 to 8.0. And for all in aggregates or combined aggregates …
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information, such as fineness modulus. The sample may also be sieved in increments to prevent overload. AGGREGATE WAQTC FOP AASHTO T 27/T 11 (12) T27_T11_short_12 Aggregate 12-3 Pub. October 2012 ... for both coarse and fine portions should check closely with the original mass of sample placed on the sieves. If performing T 11 with T 27,
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fineness modulus of stone dust and fine aggregate should be comparable in order to use stone dust as a replacement of fine aggregate. Studies shows that optimum replacement of fine aggregate with stone dust gives maximum compressive strength, durability, flexure strength and other mechanical properties.
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of fine aggregate with stone dust. The results shows strength of concrete increases within 5-12 percent up to 50 percent replacement of fine aggregate. And at 60 percent stone dust in concrete the maximum value of compressive strength is obtained which is 17 percent more than referral concrete (concrete with zero percent stone dust).
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3.1.2—Fineness modulus 3.1.3—Maximum size and nominal maximum size ... material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates …
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The values of compressive strengths of mortar specimens issued from natural sands mortars vary from 18 to 27 MPa and increase with the fineness modulus. SB3 sand (FM=3.1) and SG5 sand (FM=2.2 ...
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Usually commercial sand is obtained from river beds or from sand dunes originally formed by the action of winds. The usual particle size of sand grains is between 0.075 mm to 4.75 mm with further subdivision of coarse sand in range of 2 mm to 4.75 mm, medium sand in range of 0.42 mm to 2 mm and fine sand in between 0.075 mm to 0.42 …
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sized material will fall in the lower portion of the range. The reported values of effective friction angle (ϕ′), based on SPT N60 values, should be reduced by 5° for clayey sands and should be ... soil type range of equivalent elastic modulus ksf / (kPa) fine sand • loose • medium dense • dense . 160 to 240 / (8,000 to 12,000) 240 to ...
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Explanation: Fineness modulus is an empirical factor obtained by adding the cumulative percentages of aggregate retained on each of the standard sieves ranging from 80 mm to 150 microns and dividing this sum by 100.. Fineness modulus of coarse aggregate is 6 - 8.5. Fineness modulus of fine aggregate is 2 - 3.5. The fineness …
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Fineness Modulus of Fine Aggregate ... A 0-4mm with high amount passing 4mm & 2mm can skew a high value. Analysis of number of 0-4mm Concrete Sand sources gave a similar FM even though the fraction passing the 500µm sieve varied between 27 to 62%. There does not appear to be a correlation between FM and aggregate grading.
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Typical Values of FM of Sand. The maximum value of FM for sand should be 3.2. Aggregate with FM higher than 3.2 should not be considered as Fine aggregate. The fineness modulus of sand ranges between 2.2 to 3.2 depending on the fineness of sand. Fine sand has a FM range of 2.2-2.6; Medium sand from 2.6-2.9 and coarse …
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in range of 0.42 mm to 2 mm and fine sand in between 0.075 mm to 0.42 mm (Gauhar ... and found that concrete with crushed stone sand results in higher strength than the ... are introduced here as ...
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