How to calculate compressive strength of concrete?
- 15 Answers
- 279253 Views
- UPPCL, I also Faced
- E-Mail Answers
Answer Posted / harshal.s.khode , inspection e
Depending upon the quantity of concrete ,the nos of cube
mould is decided .first you finalised the set of cubes the
standard size of ( 150x150mm). after pouring the cubes
moulds , every cubes moulds is filled in required layer by
layer and every layer is tamping by 10 strokes.after
compacted the cubes moulds the following information is
noted on cubes / to maintain the site register for testing
data such as
1. Name of the structure were the cubes will be taken
2. Nos of sets
3. Date of casting
4. Time of casting
5. Grade of concrete
6. 7 days result
7. 28 days result
Then all the cubes moulds shall be pouring into the water
tank for 28 days curing.to calculate the 7 days result
required nos. of cubes mould are taken out and tested in
the COMPRESSION TESTING MACHINE.the same process are
carried out for 28 days.
Compressive strength of concrete = LOAD AT BREAKAGE ON DIAL
GAUGE
SURFACE AREA OF THE CUBES MOULDS
For 7 days test result the strength to be gain by
approximately about 70% of the grade strength of the
concrete and For 28 days test result the strength to be
gain by approximately 100 % of the grade strength of the
concrete. Normally the unit of compressive strength as
KG/SQMM , N/SQMM.
As per thumb rule , at the time of weighing the cubes the
minimum weight of cubes are 8.6 kg .
| Is This Answer Correct ? | 101 Yes | 34 No |
Post New Answer View All Answers
what is a well
manhole chamber having height of 2300 mm and thickness of brickwork is 230 mm and dia of opening covering is 560 mm and bottom length vertical is 1500 mm (1:4) brick masonry and plaster 12 mm on both sides..how to estimate the no bricks used with mortar cement bags and sand for total chamber including plaster.
how to stop beam concrete between column
Define graphics window?
I am a civil engineering student and going to attend interview in this week in an IT company.Will they ask me questions about my area of interest or cs
Basic civil interview questionsÂ
Which are the Steel tests ?
Floor tile measurement? Wall to wall or skirting to skirting
How much sand and cement requirement for 1 SQM 125mm thickness Brickwork
what is the meaning of 40/20 src
For the construction project what capital cost has to be taken in consideration?
Define angular dimension?
Explain the design for rcc multi-storied building?
IS THERE ANY JOBS FOR THOSE WHO ARE IN FINAL YAER OF ENGINEERING(CIVIL) IN MUMBAI
With reference to construction of state highways, please let me know the total Bill Of Quantities as per the following details:- 1) Subgrade - 500 mm 2) Granular Sub-Base (GSB) - 200 mm 3) Wet Mix Macadam I (WMM I) - 150 mm 4) Wet Mix Macadam II (WMM II) - 100 mm 5) Dense Bituminous Macadam (DBM) - 60 mm 6) Bituminous Crust (BC) - 40 mm Road Length is 44 Kms. Road Width is 7 mtrs. Please provide the BOQ of each layer as per Compacted Factor & Loose Factor both. Also, if possible please provide me the approximate details of total material required (all categories viz. soil, gravel, stone aggregrate, sand, bitumen etc.) as per general mix design prevailing in India. Thanks & Regards -- Rokr
