Table of Contents
- 1 What is the FM of sand?
- 2 Is code for fineness of sand?
- 3 Is sand a code?
- 4 What is zone of sand?
- 5 What is the is code for the specification of coarse and fine aggregate?
- 6 Is sand a test code?
- 7 What is the appropriate range of fineness modulus of sand?
- 8 What is the minimum fineness of crushed stone sand?
What is the FM of sand?
Fineness Modulus
The Fineness Modulus (FM) of fine aggregates (sand) is an empirical figure obtained by adding the total percentage of the sample of a sand retained on each of a specified series of sieves, and dividing the sum by 100.
Is code for fineness of sand?
Zone of Sand As Per IS: 383-1970
| IS Sieve | Zone 1 | Zone 2 |
|---|---|---|
| 10 mm | 100 | 100 |
| 4.75 mm | 90 – 100 | 90 – 100 |
| 2.36 mm | 60 – 95 | 75 – 100 |
| 1.18 mm | 30 – 70 | 55 – 90 |
What is FM value?
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. In general, however, a smaller value indicates a finer aggregate.
What is the fineness modulus value of fine sand?
between 2.2-2.6
Fine sand has fineness modulus between 2.2-2.6.
Is sand a code?
IS: 383 – specifications for fine and coarse aggregate from natural sources for concrete. IS: 2430 – methods of sampling. IS: 4082 – specifications for storage of materials. IS: 2116 – permissible clay, silt and fine dust contents in sand.
What is zone of sand?
It divides the sand in four zones i.e. from Zone I to Zone IV. Zone I–Sand being very coarse and Zone 4 sand is very fine. It is generally recommended by code to use sands of zones I to Zone III for Structural concrete works.
How is sand FM calculated?
To calculate the fineness modulus of sand, the sum of the cumulative percentages retained on the following sieves are divided by 100: 150μm (No. 100), 300μm (No. 50), 600-μm (No. 30), 1.18mm (No.
How do you calculate fineness modulus of sand?
What is the is code for the specification of coarse and fine aggregate?
No. 354/1949 – Standard Specification (Coarse and Fine Aggregates From Natural Sources For Concrete) Order, 1949. S.I.
Is sand a test code?
IS: 2430 – methods of sampling. IS: 4082 – specifications for storage of materials. IS: 2116 – permissible clay, silt and fine dust contents in sand. IS: 2250 – compressive strength test for cement mortar cubes.
Is code of M sand?
The Direct shear test was conducted as per Indian Standard code IS code 2720 (Part XIII) – 1972. The test was conducted for three conditions dense, loose and maximum dry density. Maximum density of the M-sand dust is 1.47 g/cc.
What are different zone of sand as per IS code?
What is the appropriate range of fineness modulus of sand?
The larger the fineness modulus is, the coarser the sand will be. The appropriate range of fineness modulus of the sand aggregate used in normal concrete is 3.7–1.6.
What is the minimum fineness of crushed stone sand?
However, it is preferable to have minimum fineness modulus of l-4 in case of crushed stone sands and crushed gravel sands and a F. M of 1 5 in case of naturally occurring sands.
What is the FM of the fine aggregate in concrete?
When designing concrete mixes, the FM of the fine aggregate is required for the effective proportioning of mixes. Changes to the grading of the coarse aggregate portion have less of an effect on overall concrete properties.
How do you find the coarseness of sand?
The coarseness of sand is expressed by fineness modulus (Mx), defined as follows: (5.1) M x = A 2 + A 3 + A 4 + A 5 + A 6 − 5 A 1 100 − A 1 The bigger the fineness modulus is, the more coarse the sand is. The fineness modulus of the sand used in ordinary concrete is within 3.7 ~ 1.6.