Page 39 - ebook_soil engineering practical workbook_15112021

4.3 Apparatus/Equipments
 Balance,
 Set of sieves,

 Cleaning brush, Sieve shaker,
 Mixer (blender),
 Stop Watch

4.4 Safety Precautions

- Conduct yourself in a responsible manner at all times in the
laboratory.

- Never work alone in the laboratory. No student may work in the
laboratory without the presence of the instructors.

- Do not eat food, drink beverages, or chew gum in the laboratory. Do
not use laboratory glassware as containers for food or beverages

- Be alert and proceed with caution at all times in the laboratory. Notify

the instructor immediately of any unsafe conditions you observe

- Labels and equipment instructions must be read carefully before

use. Set up and use the equipment as directed by your instructor

- Observe good housekeeping practices. Work areas should be kept

clean and tidy at all times.

4.5 Procedures

- Write down the weight of each sieve as well as the bottom pan to be

used in the analysis.

- Record the weight of the given dry soil sample.

- Make sure that all the sieves are clean, and assemble them in the

ascending order of sieve numbers (#4 sieve at top and #200 sieve at
bottom). Place the pan below #200 sieve. Carefully pour the soil
sample into the top sieve and place the cap over it.

- Place the sieve stack in the mechanical shaker and shake for 10

minutes.

31 | Soil Engineering Practical Workbook