how much quantity of blocks, cement and sand is required to
complete 1sq.m of CC Hollow blockwork. Size-16"x8"x8". Also
what is the cement sand ration commonly used?

Answer Posted / k.amirthalingam

Quantity of material used for a Hollow block work
(400X200X200)?

1. Qty of HOllow block is 10 to 12 numbers / Sqm
2. Cement sand ratio preferable is 1:4
3. For 1:4 CM the cement, sand calculation as follows

Volume of mortor = Horizontal joints 5 rows of 200 mm wide
20 mm thick = 5*.2*.02 = .02 cum

Volume of verticaljoints : 5*2.5*.2*.2*.02 = .01 cum

Total = .03 + 30 % wastage = 0.039 Cum of Cement Mortor

For 1:4 ratio

Weight of cement in 1 Sqm = .039*1*(1/5)*1440 = 11.232
Kg /Sqm

Volume of Sand = .039*1*(4/5) = .0312 Cum = 1.11 Cubic foot


NOTE: But in actual it occurs more than the above
calculated values because many unskilled people filling the
hollow portions of the block. This is the wrong practice.
The Laying system is such that the hollow portion to be
overlapped with filled portion hence the hollow portion to
be maintained. This will give good heat reduction inside
the building.

For more queris mail me at ameerabic@gmail.com

K.Amirthalingam from Ariyalur

Is This Answer Correct ?    134 Yes 47 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is modular brick and it size

1157


pls give me ans to ACT formula cube testing porpuse

2530


What is the difference between pvc,cpvc and upvc and where it is used as per their properties?????

2346


Why are separation membranes used between concrete pavement slab and sub-base?

813


load combinations how many types for staad design purpose?

1722






Journal entry Gross salary 10000 Tax 1000 Employee contribution 2000 Employer contribution 2000

1215


Rate analysis of 150mm, 100mm, & 230mm thk BBM work

7874


can we find any technical issue if we are gong to change the dimensions of steel beams from one type to another type IE if there are any equievelant data base to find solution for problem of changeing sectios of beam from one type to another with the same cross sectional area.

1575


How many days should curing of plastering, brick work and concrete

1199


i need gate exam civil engineering question papers with answers

1738


what is the Purpose of Adding 20% of wet mortar & 1/3rd to Dry Mortar for PCC & Plastering & Rcc .is there any standard method for adding this .?

1769


what is stressing

5793


how can we construct building without foundation providing only grade beam at ground level

1059


What is Curtailing of R/F

1973


if dia of inner circle is 42 m and depth is 1.5 m and width is 1 m ,then whait is the quantity of steel?

2374