• Mix designs for concrete block

    and our fine aggregate (sand) has an FM of 2.75. Step 2: Aggregate proportioning. Knowing the FMs we can calculate the aggregate proportions for the mix: 4.82 - 3.70 1.12 X = _____ (100) = _____ (100) = 54% 4.82 - 2.75 2.07 X = 54% fine aggregate Y = 46% coarse aggregate Step 3: Batch proportions. Our dry aggregate de-sign batch weight is 4,500 pounds, so we calculate: 4,500 54% = 2,430 lbs

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  • Article Mix Proportion Design of Self-Compacting SFRC with

    proportion of self-compacting SFRC, which is influenced by the steel fibers, along with its effects on the packing properties of the steel fiber aggregate skeleton. In total, 252 groups of packing tests were carried out for several main factors, including with various maximum particle sizes for the coarse aggregates, manufactured sand ratios ranging from 50% to 62%, and with different types of

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  • cement concrete sand aggregate testing

    2020-05-24· Quantities of materials for concrete such as cement, sand and aggregates for production of required quantity of concrete of given mix proportions such as 1:2:4 (M15), 1:1.5: 3 (M20), 1:1:2 (M25) can be calculated by absolute volume method. This method is based on the principle that the volume of fully compacted concrete

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  • What is sand aggregate ratio in concrete? - Quora

    It depends upon the (f ck)the Target strength you aim to acquire., in other words depends on the Grade of Concrete such as M20,M30 etc where "M" represents Mix and the numbers 20&30 represents the compressive strength attained by the the concrete

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  • Sieve Analysis And FM Of Sand In Urdu/Hindi -

    13.01.2020· HOW TO MEASURING FM(FINENESS MODULUS) BY SIEVE ANALYSIS OF FINE AGGREGATE(SAND) - Duration: 12:48. Engr. Md. Arshadul Hoque(Civil Engineering, Specially Water Treatment & RCC

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  • Gradation of Coarse Aggregates

    Gradation of Coarse Aggregates The workability is improved when there is an excess of paste above that required to fill the voids in the sand, and also an excess of mortar (sand plus cement) above that Well-graded aggregates are tricky in proportion.

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  • EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

    ratio. In fact, it is generally agreed that, although larger coarse aggregates can be used to make high-strength concrete, it is easier to do so with coarse aggregates below 12.5 mm (Y, in.) (ACI 363-95). There has not been much research on the effects of coarse aggregate content on

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  • Influence of Mix Proportion of Sylhet and Local

    proportion of fine aggregates (i.e. sand Voids in Coarse aggregates: and type of aggregate on the size effect in the compressive strength of concrete from the standpoint that it may result

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  • FM of fine aggregate is useful in estimating

    FM of fine aggregate is useful in estimating proportions of fine and coarse from CEE 123 at Lehigh University

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  • What is Fineness Modulus of Coarse

    Therefore, fineness modulus of coarse aggregates = sum (cumulative % retained) / 100 = (717/100) = 7.17 Fineness modulus of 7.17 means, the average size of particle of given coarse aggregate sample is in between 7 th and 8 th sieves, that is between 10mm to 20mm.. Limits of Fineness Modulus

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  • Effect of Sand Fines and Water/Cement Ratio on Concrete

    combined effect of sand fines and water/cement ratio's effect on the properties of concrete. This paper seeks to address this gap in literature. Materials and Methods Materials The materials used were crushed granite as coarse aggregate, natural pit sand, ordinary Portland cement and water. Physical properties of the aggregates were analysed. These properties included the specific gravity

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  • Effect of Fineness of Sand on the Cost and

    The Fine aggregate (Sand) taken is Yamuna river sand and coarse aggregate taken is Dolomite limestone in crushed form. It has been sorted in several categories starting the Fineness Modulus (FM) of sand from 2.0 to 3.0. These were mixed in different proportions to get a consistent combined FM. The combined FM is determined like All-in-aggregate FM. In the present study we have selected M30

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  • (PDF) Effect of Aggregate Size Distribution on

    The sizes of coarse aggregate were 19 mm, 12.5 mm, 9.5 mm, 4.75 mm, 2.36 mm and 1.18 mm. Mixtures of local sand and Sylhet sand (1:1) and with fineness

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  • "Effect of Specific Gravity on Aggregate Varies the Weight

    (23'C).The FM is an index of the fineness of an aggregate –the higher the FM, the coarser the aggregate. Different aggregate grading may have the same FM.FM of fine aggregate is useful in estimating proportions of fine and coarse aggregates in concrete mixtures.FM of the Coarse aggregate is higher the volume of the aggregate more.

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  • main type of coarse aggregate -

    The fineness modulus (FM) is an index of the fineness of an aggregate. Types of Aggregates-Natural and Artificial Aggregates. The main types of natural aggregates are sand, gravel, crushed rock such as granite, basalt etc.. The gravel is another type of aggregates and is mainly used for as coarse aggregates in concrete.

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  • Calculation of sand–aggregate ratio and water

    Calculating sand–aggregate ratio according to, and at the same time referring table according to water–cement ratio and the maximum grain size of coarse aggregate, one can get the homologous sand–aggregate ratio. Comparing them with the actual sand–aggregate ratio (as in Fig. 5, the two right lines are the upper limit and lower limit of value obtained by referring table, respectively

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  • Concrete aggregates 2 - LinkedIn SlideShare

    Concrete aggregates 2 1. CONCRETE AGGREGATES 2. binding medium (mortar) Portland Cement Concrete relatively inert filler materials (aggregates) In concrete mixtures the proportions of cement paste & aggregates is controlled by the following factors: 1) Suitable workability &

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  • How To Calculate Of Cement, Sand And

    Weight of Coarse Aggregates = volume x density, Density of Coarse Aggregates = 1520 kg/m^3 Weight of Coarse Aggregates = 0.84 x 1520 = 1276.8 kg (1.28 tonnes) The above calculation you can use for all Grade of Concrete but just you have to put the different Grade of concrete like M10, M 15, M20, M25 etc. just here with grade of concrete you can change the proportion and the method is just

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  • Coarse Aggregate - slideshare.net

    Coarse Aggregate 1. COARSE AGGREGATE GS.Mohan 1011210335 1 2. INTRODUCTION:Aggregate are the important constituent in concrete. Aggregate are granular material, derived from the most part from the natural rocks, crushed stones, or natural gravels and sands.

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  • What is Aggregates | Aggregate Definition & its

    Coarse aggregates are those that are retained on the sieve of mesh size 4.75 mm. Their upper size is generally around 7.5 mm. Gravels from river bed are the best coarse aggregates in the making of Common Concrete. In those situations, if they are not easily available, Suitable rock types are crushed to the desired particle sizes for making

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  • What is hand mixing of concrete? - Quora

    Concrete is a mixture of cement, water, sand and coarse aggregates, which is mixed in required proportions. As concrete plays a very significant role in the construction, it is good to have an idea for any construction worker of how to mix concret

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  • calculation of cement sand coarse aggregates

    The FM is calculated by adding the cumulative percentages by mass Get price. how to calculate 1:2:4 ratio concrete cement, sand, metal and water how to calculate 1:2:4 ratio concrete cement, sand, metal and water please give me brief calculation. 44 cubic feet coarse aggregate: 4/7x154 = 88 cubic feet Get price. How to calculate quantity of cement sand aggregate in concrete

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  • FINENESS MODULUS OF AGGREGATE – WHAT,

    What is Fineness Modulus of Aggregate? 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 micron and dividing this sum by 100. Fineness Modulus of Sand Why to Determine Fineness Modulus? Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is.

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  • Fineness modulus - Wikipedia

    The Fineness Modulus (FM) is an empirical figure obtained by adding the total percentage of the sample of an aggregate retained on each of a specified series of sieves, and dividing the sum by 100.Sieves sizes are: 150-μm (No. 100), 300-μm (No. 50), 600-μm (No. 30), 1.18-mm (No. 16), 2.36-mm (No. 8), 4.75-mm (No. 4), 9.5-mm (3/8-in.), 19.0-mm (3/4-in.), 37.5-mm (11/2-in.), and larger

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