sand deposits creating several environmental issues, as an alternate manufactured sand (MSand) are being used as fine aggregate in place of natural river sand. This research is mainly concentrated on gradation of fine aggregate to get required quality by examine the effect of different fineness modulus (FM)
range of fineness modulus of manufactured sand Liming Heavy Industry is a high-tech company integrating R&D, production and distribution, and provides crusher, sand making, grinding equipment, mobile crushing station, etc. mature products and solutions used in aggregate, mining and waste recycling.
gate fineness modulus, proportion-ing aggregates, and choosing a ce-ment-aggregate ratio. The fineness modulus method The most commonly used method for designing mixes for concrete masonry is called the FM
The influence of mixed sands on workability and strength of C30 and C50 concrete are studied. The result shows that C30 and C50 concrete slump can reach 170mm. Concrete workability is good and strength is qualified too. Fineness modulus is the most important performance index when iron mine tailing sand is used in concrete.
For all classes of concrete except Class K, provide fine aggregate with a fineness modulus between 2.30 and 3.10 as determined by Tex-402-A. For Class K concrete, provide a fine aggregate with a fineness modulus between 2.60 to 2.80 unless otherwise shown on the plans. 3. Mineral Filler.
228 Int. J. Struct. & Civil Engg. Res. 2013 Nimitha Vijayaraghavan and A S Wayal, 2013 EFFECTS OF MANUFACTURED SAND ON COMPRESSIVE STRENGTH AND WORKABILITY OF CONCRETE Nimitha Vijayaraghavan 1* and A S Wayal ...
Fineness modulus of sand (fine aggregate) is an index number which represents mean size of particles in sand. It is calculated by performing sieve analysis. Fineness modulus of fine aggregate is an index number which represents the mean size of the particles in the aggregate.
CHAPTER 2 SIEVE ANALYSIS AND FINENESS MODULUS Sampling Since the reason for sampling aggregates is to determine the gradation (particle size) of the aggregate, it is necessary that they be sampled correctly.
The modulus of elasticity of concrete is known to have a major effect on the performance of ... aggregate and silica sand from Goldhead were used as the zenith aggregates in this study. ... Fineness Modulus. /. 2.41 gravity and...
Fineness Modulus Method of Concrete Mix Design The index number, which describes the relative sizes of coarse and fine aggregates, is called as fineness modulus (FM). Fineness modulus is determined separately by sieving coarse and fine aggregates through the following set of sieve. IS sieves for coarse aggregates are 80 mm, 40 mm, 20 mm, […]
The fineness modulus plays very important role in mix proportion designing of the concrete. Earlier concrete mix designing is not a very elaborative subject thought there have been guidelines. But with present varietal needs of construction industry, from earth-scrapers to space-scrapers, including the mid-oceans, concrete has been put under ...
3. A fineness modulus of the sand is important because of its effect on the water demand of the mix. The finer the sand, the lower the F.M., the more water required for a given slump. The fineness modulus of sand is obtained by adding the cumulative percentages retained on the following standard sieves: 4, 8, 16, 30, 50 is then divided by 100.
Use Of Brick Aggregate In Standard Concrete And Its 2015-2-15concrete is produced by mixing cement, sand, coarse use of brick aggregate in standard concrete and its performance in elevated temperature the fineness modulus of the sand found to be 1 and specific gravity 2e silt and clay content of the fine aggregate is 2.
Understand the ACI Absolute Volume Method of concrete mix design Know how to design concrete mixes using NCDOT Specifications/Special Provisions Be able to adjust mixes using 5% ACI Variations Understand concrete mix design submittal and approval process for NCDOT Know how to correctly complete NCDOT mix design forms
and divide by 100. The result is the fineness modulus of the sample. A sand with a fineness modulus falling between 2.3 and 3.1 is suitable for concrete (see Table 2-3).FA having either a very high or a very low fineness modulus is not as good a concrete aggregate as medium sand.
Incorporation of fly ash made concrete mix more workable while wollastonite decreased workability of mixes and necessitated the use of plastisizer . Comparing strength results of control mix A with that of cement-fly-ash concrete mix B, there was reduction in 28 day compressive and flexural strengths. Thereafter at 56 day ,
Fineness modulus is a tool in concrete mix design process for evaluating aggregates and determining mean particle size of the aggregate sample.
* The maximum aggregate size used in a concrete mix is dictated by the size of the structural member and the spacing between reinforcing steel. Fineness Modulus (FM) • A single number system used to express the fineness or coarseness of an aggregate • Higher values indicate coarser grading • Sum of cumulative % retained on the standard sieves
Sl.No. Fineness Modulus Nature of sand 1 2.2 – 2.6 Fine sand 2 2.6 – 2.9 Medium sand 3 2.9 – 3.2 Coarse sand Sand having a fineness modulus more than 3.2 will be unsuitable for making satisfactory concrete. The fineness modulus values obtained for sand, quarry dust and coarse aggregate are given in Tables 3.7 to 3.9.
Track 1: Performance-Based Concrete Pavement Mix Design System The final product of this track will be a practical yet innovative concrete mix design procedure with new equipment, consensus target values, common laboratory procedures, and full integration with both structural design and field quality control – a lab of the future.
What Is Fineness Modulus of Sand? Fineness modulus of sand (fine aggregate) is an index number which represents the mean size of the particles in sand. It is calculated by performing sieve analysis with standard sieves. The cumulative percentage retained on
A higher fineness modulus represents a coarser material and a lower fineness modulus represents a finer material. Knowing the fineness modulus of aggregate gives you some indication of the amount of paste needed to make concrete using the aggregate. For instance, sand with a low fineness modulus has more voids in it and more particle surface ...
Sep 28, 2013 · Approximate air and water contents and the percentages of sand coarse aggregate per cubic meter concrete are determined from the table 4, for concrete containing natural sand fineness of modulus 2.75 and having workability of 75 to 100m.
what is fineness modulas of sand ? ... The Fineness Modulus of Sand is between 2.5 to 3.0 ... how much unit weight of an RCC Box 3.0mX3.0m will be of design mix ...
The reference concrete mix or accelerated strength of concrete mix has w/c ratio as 0.35 and workability very low with slump 0 to 10 or compacting factor 0.8 with the available cement i.e. (cement in hand). The nominal maximum size of natural crushed aggregate should be 10 mm and fine aggregate should conform to zone II of table 4 of IS-383-1970.
Use of Blast Furnace Slag as an Alternative of Natural Sand in Mortar and Concrete Prem Ranjan Kumar1, Dr. Pradeep Kumar T.B.2 P.G. Student, Department of Civil Engineering, IES Institute of Technology and Management, Raatibad, Bhopal, india1
thorough on-site inspection of the concre te plant in order to complete a Concrete Plant Contact Report. This Contact Report contains the information necessary to assure that the plant is able to produce concrete meeting specifications, a nd has a signature block for the R eady-Mix Producer certifying that
Oct 03, 2018 · Fineness Modulus is an indication grading of particle size. More the value of FM more coarser the aggregate is. Now because density vary with particle size, and also the void spaces inside the concrete is a function of aggregate size, it is very i...
GRADATION OF AGGREGATE FOR CONCRETE BLOCK Although numerous papers have been written concerning the proper gradation for concrete mixes, they have generally dealt with plastic mixes, and very little published
In recent years, the construction industry has been faced with a decline in the availability of natural sand due to the growth of the industry. On the other hand, the metal casting industries are being forced to find ways to safely dispose of waste foundry sand (FS). With the aim of resolving both of these issues, an investigation was carried out on the …
Suitability of Quarry Dust as Partial Replacement Material for Sand in Concrete S. N. Ramana, M. F. M. Zainb, H. B. Mahmuda, K. S. Tanb aDepartment of Civil ...
Design the concrete mix according to the following conditions. Design Environment Pavement slab, Bozeman, Montana (cold climate) Required design strength of 3,000 psi Slab Thickness of 12 inches Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples) Only air entrainer is allowed for target of 6% air content.
The fineness modulus is an indicator of the fineness of an aggregate and is most used for evaluating fine aggregates. The higher the number, the coarser the aggregate. The fineness modulus is computed by adding the in., No. 4 ...
In Oman, Al Harthy et al. (2007) investigated the properties of concrete made with dune sand, which was partially introduced (10-100%) as fine aggregate into the mix. It was found that the optimum ...
2016/6/2 · Therefore, there is the potential for clay containing aggregates to be used in concrete that were previously discouraged. An optimum fines content of 7% was observed to aid the handling, placing and finishing of manufactured sand concrete.
2018/01/09 · 1.If p is the standard consistency of cement the amount of water used in conducting the initial setting time test on cement is a)0.65 p b) 0.85 p c) 0.6 p d) 0.8 p 2.For complete hydration of cement the w/c ratio needed is a)less than 0.25 b)more than 0.25 but less than 0.35 c)more than 0.35 but less than 0.45 d)more than 0.45 but less …
Fineness modulus, specific gravity, moisture content, water absorption, bulk density, %voids, % porosity (loose and compact) state for sand (S) and SDA were also studied. The test results indicate that it is possible to manufac-ture concrete containing Sheet glass powder (SGP) with characteristics similar to those of natural sand aggregate concrete
Fineness Modulus (FM) is an empirical calculation used to support the optimisation of a concrete mix design. It is used to determine ‘degree of uniformity of the grading’. This can create a relationship between grading and consistence and/or the amount of cement or water to fill the voids.