Field Density Test Apparatus – Sand Replacement
Field Density Test Apparatus – Sand Replacement
Product Details:
Prepare the surface of the location to be tested so that it is a level plane. Keep the soil tray firmly on the place surface. Excavate with hand tools a hole with diameter equal to that of the hole of the plate and about 10cm in depth with smooth walls and rounded bottom edges. Place all loosened soil in a container being careful to avoid losing any material. Seat the already weighed apparatus with sand on the hole of the tray. Open the valve and after the sand has stopped flowing close the valve. Weigh the apparatus with remaining sand and determine the weight of sand occupying the cavity. Weigh the material that was removed from the test hole. Mix the material thoroughly and weigh a representative sample for moisture determination. Dry and weigh the sample to determine moisture content.
Features:-
- Sand pouring cylinder
- Calibrating can
- Metal tray with a central hole
- Dry sand (passing through 600 micron sieve)
- Balance
- Moisture content bins
- Glass plate
- Metal tray
- Scraper tool
Product Description
Technical Specification:-
- Volume of the calibrating container, V (cm3)
- Weight of SPC + sand, W1 (g)
- Weight of sand required to fill the conical portion on a flat surface, W2 (g)
- Weight of SPC + sand (after filling calibrating can), W3 (g)
- Weight of sand required to fill the calibrating container,
- Wc = (W1-W2 –W3) (g)
- Unit weight of sand,
- Sand = (Wc)/V (g/cm3)
- Weight of the excavated from the pit (W) (g)
- Weight of sand + SPC, before pouring, W1 (g)
- Weight of SPC after filling the hole & conical portion, W4 (g)
- Weight of sand in the pit
- Wp = (W1-W4-W2) (g)
- Volume of sand required to fill the pit
- Vp=Wp/sand (cm3)
- Wet unit weight of the soil
- Wet=W/Vp (g/cm3)
- Dry unit weight of the soil γdry=γwet/(1+m) (g/cm3) (where ‘m’ is the moisture content of soil).
