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Rational Mix Design Approach for High Strength Concrete Using Sand with very High Fineness Modulus 1Kwan Wai Hoe and 2Mahyuddin Ramli 1Department of Building Technology, School of Housing, Building and Planning 2University Sains Malaysia, Pulau Pinang, Malaysia Abstract: Problem statement: Production of concrete is always deal with inconsistency.
Very coarse fine aggregate with fineness modulus 3.98 increased the compressive strength of the concrete in large extent. The increased of superplasticiser from 2.0% to 2.5% has decreased the ...
For conventional concrete the fineness modulus of the fine aggregate should range from 2.3 to 3.1. 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 ...
Read More: INITIAL AND FINAL SETTING TIME OF CEMENT TEST, PROCEDURE & RESULT. Fineness Test of Cement. PROCEDURE OF FINENESS TEST OF CEMENT: Collect a sample of cement and rub with your hands. The Fineness test sample should be free of lumps. Take 100 gm of cement sample and note its weight as W1.
Procedure to determine fineness of cement i) Weigh approximately 10g of cement to the nearest 0.01g and place it on the sieve. ii) Agitate the sieve by swirling, planetary and linear movements, until no more fine material passes through it.
Using the above proportions, 150 mm cube specimens of reference concrete are prepared with the available cement and cured by boiled water method. The accelerated strength is determined. Corresponding to this accelerated strength of the reference concrete, the water/cement ratio is determined from Fig. 20.17.
Sep 01, 2014· 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. Why to Determine Fineness Modulus? Fineness modulus is generally used to get an idea of [.]
Fineness test of cement is done to determine the particle size of cement. As, the rule of thumb, the finer the cement particle the best will be the cement and on the other hand the coarser the particle it will not be that good. The fineness of cement is determined by two methods; 1. Sieving Method. 2. Air Permeability Method (Blaine Method).
Therefore, fineness modulus of aggregate = (cumulative % retained) / 100 = (275/100) = 2.75 Fineness modulus of fine aggregate is 2.75. It means the average value of aggregate is in between the 2 nd sieve and 3 rd sieve. It means the average aggregate size is in .
Aug 01, 1970· 6. For concrete containing no entrained air, there is a slight decrease in the static modulus of elasticity at 28 days' age as the fineness is increased. The modulus of elasticity of concrete determined by sonic methods decreases as the fineness of the cement increases. 7. The fineness of cement influences the drying shrinkage of concrete.
6. Dry the sample again to a constant weight on a hot plate or in an oven at a temperature of 230°F (110 ºC), then accurately weigh and record. 7. Separate the sample into individual sizes using the proper sieves. The sieves normally used are the standard 8 inch (200 mm) sieves.
cement, Part 1: Determination of fineness by dry sieving [CED 2: Cement and Concrete] IS4031(Part1):1996 Mgy 1996 Indian Standard METHOD OF PHYSICAL TESTS FOR HYDRAULIC CEMENT PART 1 DETERMINATION OF FINENESS BY DRY SIEVING (Second Revision ) KS 91.100.10 .- 8BIS 1996 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH .
Example Using Absolute Volume Method Determine the mix proportions for a retaining wall, using the following specifications and conditions: Required 28-day compressive strength (f´ c) Maximum size aggregate Exposure condition Fineness modulus of fine aggregate Specific gravity of portland cement Specific gravity of fine aggregate Specific gravity of coarse aggregate Dry-rodded unit weight of ...
Nov 03, 2017· How to Check Quality of cement on Site Fineness test of Cement:-As per IS: 4031 (Part 1) – 1996. The cement of good quality should have less than 10% of wt of cement particles larger than 90 µm. (micron) To determine the number of cement particles larger than 90 µm. or Fineness test of cement. The following apparatus is used.
1.1 This method determines the fineness modulus of concrete fine aggregate used in evaluation of natural and manufactured sands for portland cement concrete. 1.2 The values given in parentheses (if provided) are not standard and may not be exact mathematical conversions. Use each system of units separately. Combining values from
The scope of tests on the properties of concrete using fineness cement consisted of the fundamental tests with fresh concrete, slump, air contents, and setting time [9–11]. The experiment was planned with the following targets; slump of 120 mm ± 25 mm, water-to-cement ratio of 0.5, and air content of 4.5% ± .
1.1 This test method covers determination of the fineness of hydraulic cement, using the Blaine air-permeability apparatus, in terms of the specific surface expressed as total surface area in square centimetres per gram, or square metres per kilogram, of cement. Two test methods are given: Test Method A is the Reference Test Method using the manually operated standard Blaine apparatus, .
Apr 05, 2018· Fineness of cement test by using 90 micron is sieve as per code IS:4031(part-1):1996. ... FINENESS OF CEMENT BY BLAINE'S AIR PERMEABILITY APPARATUS AS PER ASTM C 204 --07 & IS ... AASHTO T209 ...
Jan 28, 2019· The fineness of cement is a measure of the size of particles of cement and is expressed in terms of specific surface area of cement. Fineness can be calculated from ...
The workability-dispersion-cohesion method is a new proposed method for the design of normal concrete mixes. The method uses special coefficients called workability-dispersion and workability-cohesion factors. These coefficients relate workability to mobility and stability of the concrete mix. The coefficients are obtained from special charts depending on mix requirements and aggregate properties.
For ordinary Portland cement, the specific surface area should not be less than 2250 centimeter square per gram. Checking fineness of cement through sieving is an indirect method and it is easily done in the laboratory. The specific surface area of cement can be measured by Blaine's Air permeability of the cement apparatus. ALSO READ
Problem statement: Production of concrete is always deal with inconsistency. Sources of variation like materials from different geographical basis, mix design method, fineness of aggregates and so on will attribute to different level of achievement of the concrete. Even though researcher had verified that higher fineness modulus of sand would yield better performance for the concrete, but so ...
Fig. 1: Specific Surface versus Compressive Strength of Cement Fineness of cement is tested in two ways : (a) By sieving. (b) By determination of specific surface (total surface area of all the particles in one gram of cement) by air-permeability apparatus. Expressed as cm 2 /gm or m 2 /kg. Generally Blaine Air permeability apparatus is used. 2.
FINENESS So we need to determine the fineness of cement by dry sieving as per IS: 4031 (Part 1) – 1996.The principle of this is that we determine the proportion of cement whose grain size is larger then specified mesh size.
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