# Estimate the Concrete Volume for the Staircase

# Estimate the Concrete Volume for the Staircase

Today I have the topic of the staircase | parts of staircase | what is The Staircase | Estimate the Concrete Volume for the Staircase.

# What is The Staircase?

The staircase is the one part of the building that is used to help people to access any floor. now I find the concrete and also find the cement, sand, and aggregate. some different parts of a staircase.

**Parts of Staircase**

**step**

**Riser **

**Tread**

**flight **

**Landing**

**Estimate the Concrete Volume for the Staircase**

**Now we start the calculation.**

**Learn more :**

# what is the curve? types of curve and detail of all curve

Example :

The height up to the floor = 10 ft

the height will 1 flight = height of ist floor/ 2

height will 1 flight = 10/2 = 5ft

Riser = 6″ = 0.5′(ft)

Numbers of riser = height of one flight/height of the riser

Numbers of riser = 5/0.5′ = 10

Tread = 10″ = 0.833′(ft)

Number of tread = no’s of riser -1

Number of tread = 10-1 = 9

thickness of diagonal slab = 6″ = 0.5′(ft)

length of step = 5′ (ft)

**NOW**

**T****he volume of concrete for step**

the volume of one step = riser×tread×length of step/2

volume 01 step = 0.5×0.833×5/2

volume 01 step = 1.041cft

we have 9 steps up to 01 floor and a volume of 1 step = 9×1=9cft

**Now we calculate the volume of waste of the slab**

ist find the length of the waist slab then find the volume of the diagonal slab.

we use the Pythagoras theorem

**I know**

the horizontal length of diagonal slab =tread×No’s of step

horizontal length of diagonal slab =0.833×9 = 7.497cft

landing height from top of floor= no’s of riser ×height of the riser

landings height from top of floor= 9 x 0.5′

landing height from top of floor= 4.5‘

**NOW**

length of waist slab =√horizontal distance of waist slab)² x √height of the landing from top to bottom )²

length of diagonal slab = √(7.497)² x √(4.5)²

length of diagonal slab = 8.744

The volume of concrete of diagonal slab= L × w × thickness of waist slab

the volume of concrete of diagonal slab= 8.744×5×0.5

the volume of concrete of diagonal slab=21.86cft

**Now find the volume of concrete for landing of the staircase**

length of landing =10.5′

width of landing = 5′

Thickness of landing = 0.5′

The concrete volume of landing= 10.5×5×0.5

Concrete volume of landing=26.25cft

The total volume of concrete for the stair case=volume of ist flight+ volume of landing

**now total volume of the concrete for staircase is **= **9+26.25= 35.25cft**

this volume of the concrete is wet for change wet to dry= multiplied by 1.54

the dry volume of the concrete of the staircase is = 35.25×1.54=54.285cft

**Now we calculate the quantity of cement sand and aggregates**

use ratio 1:2:4

sum of ratio = 1+2+4=7

volume of cement is =1/7×54.285= 7.755cft

No’s of cement bag =volume of cement /volume of one bag( volume of bag is 1.25cft)

No’s of cement bag=7.755/1.25= 6.204= 7beg

volume of sand is =2/7×54.285=15.51cft

volume of aggregates= 4/7×54.285=31.02cft

Very nice continue

I m Construction Technology and management Engineering so i interested