Table of Contents
What is the fluff factor?
The swell factor of soil is the amount of volume increase from the undisturbed (BCY) to the excavated (LCY) state due to the air pockets (fluff) created. Swelling pressure is the pressure that the expansive soil exerts if it is not allowed to swell or if the soil volume change is arrested.
What is the fluff factor for dirt?
Soil and rock expansion – or swell – after mining
| Material | Density at the Borrow 103 (kg/m3) | Bulking (Swell) Factor (\%) |
|---|---|---|
| Sand, wet | 1.95 | 20 – 30 |
| Sandstone | 2.1 – 2.4 | 75 – 80 |
| Slate | 2.6 – 3.3 | 85 – 90 |
| Soil | 1.2 – 1.6 | 20 – 30 |
How is fluff factor calculated?
Calculating the percentage change in height from the wet soil to the dry will give you a measure of the swell factor of the soil. For example, if the dry soil was 1 inch high and the wet soil is 1.54 inches high, divide 1 by 1.54 and multiply by 100 to get a 65 percent swell factor.
What is meant by swell factor?
Of a material such as soil, the ratio of the weight of a loose cubic yard (or meter) to the weight of a bank cubic yard (or meter).
What is the bulking factor of soil?
The bulking factor is the ratio or percentage of the volume change of excavated material to the volume of the original in situ volume before excavation. The bulking factor is used to estimate the likely excavated volumes that will need to be stored on site or perhaps removed from site.
What is the swell factor of excavation?
The swell factor is an adjustment representing this increase in volume and will decrease the need for fill material on the project. For example, if the volume of loose rock is 1.25 times greater than the bank volume it occupied prior to excavation, the rock’s swell factor is 1.25.
What is the bulking factor?
What is a bulking factor construction?
It is the increase in volume of a given quantity of sand, a phenomenon that is not present in gravels. The ratio of the volumes before and after the excavation is called the bulking factor. …
What is the bulking factor of concrete?
Bulking factors of soil and rocks were collected from various online sources….The same excavation in feet:
| Material | Swell/Bulking \% | Source |
|---|---|---|
| Pavement, Concrete | 50 | Alberto Munguia Mireles |
| Peat | 30 | Alberto Munguia Mireles |
What is the bulking factor of clay?
1.3
Typical bulking & compaction factor chart
| Material | Typical Bulking Factors | Typical Compaction Factors |
|---|---|---|
| Clay | 1.3 | 0.8 |
| Soil | 1.25 | 0.9 |
| Sand & Gravel | 1.12 | 0.88 |
| Rock (blasted) | 1.5 | 1.3 |
How do I work out how many tons of soil I need?
As a general rule, a tonne of a standard topsoil equals approximately 0.67m3. Divide the cubic metres required by 0.67 to give you the tonnage.
Does sand need to be compacted?
Working on and compacting granular soils such as sands and gravels are difficult tasks. Due to the composition of sand and gravel, water can enter or leave the voids in them with relative ease. This material must be compacted to provide the required strength.
What is fluff factor in plumbing?
, FL state certified GC, Commercial General Superintendent, Master Plumber. In the construction industry, the fluff factor refers to excavating dirt.
What is fluff genre?
Fluff genre is simply defined as having an overall happy feeling to the work, and is the exact opposite of an Angst piece where the genre is defined as having an overall negative feeling.
What is an example of fudge factor?
A fudge factor or fluff factor is an ad hoc quantity or element introduced into a calculation, formula or model in order to make it fit observations or expectations. Examples include Einstein’s Cosmological Constant, dark energy, the initial proposals of dark matter and inflation.
What is fluff romance?
+ Most people believe fluff is a sub-genre of Romance where the key identifying factors of the sub-genre are plotlessness, and a sickly sweet feeling running through the entire story which makes the reader squeal with joy in an unabandoned manner.