Determination Of Consistency Limits By ""Plastic Limit Test""Method

NEED AND SCOPE 

Soil is used for making squares , tiles , soil bond prevents despite its use as foundation for structures. 

Mechanical gathering REQUIRED 

1.Porcelain dish. 

2.Glass plate for rolling the case. 

3.Air tight compartments to choose the moistness content. 

4.Balance of point of confinement 200gm and tricky to 0.01gm 

5.Oven thermostatically controlled with within non-disintegrating material to keep up the temperature around 1050 and 1100C.

Strategy 

1. Take around 20gm of by and large mixed piece of the material experiencing 425 micron I.S. strainer got according to I.S. 2720 (area 1). 

2. Mix it inside and out with refined water in the vanishing dish till the soil mass gets the chance to be adequately plastic to be viably molded with fingers. 

3. Grant it to season for sufficient time (for 24hrs) to allow water to infest all through the earth mass 

4. Take around 10gms of this plastic soil mass and move it amongst fingers and glass plate with essentially satisfactory weight to roll the mass into a hung of uniform separation over every through it length. The rate of rolling may be some place around 60 and 90 strokes for every minute. 

5. Continue moving till you get a hung of 3 mm estimation. 

6. Kneed the earth together to a uniform mass and re-roll. 

7. Continue with the system until the string breaks down when the estimation is 3 mm. 

8. Assemble the bits of the crumbled string in water/air proof compartment for clamminess content determination. 

9. Reiterate the test to atleast 3 times and take the ordinary of the results discovered to the nearest whole number. 

Observation AND REPORTING 

Consider the expansiveness of string at breaks with the bar. Right when the separation crosswise over reduces to 3 mm, observe the surface of the string for breaks.



PRESENTATION OF DATA