ICOLD Bulletin **: The Specification and Quality Control of Concrete for Dams
Revision 7.0 A1-2 March 2006
Table A1-2A Typical testing for medium size RCC dam
S.No Activity Inspection / Test
method
Instrument
used
Acceptance Criteria Ref. Standard Sampling
plan
Frequency Testing
Agency
Quality
record
Responsibility
Receiving Inspection and Testing
1 Cement
(a) Grade & Date of Manufacturer Visual Inspection Nil Cement should be greater than or
equal to required grade & date of
manufacture should be less than
3 months.
IS:269-1976
IS:1489-1989
Part-ii
1 in 50 Every batch In- House GRN,Test
Ceertificates
Store Incharge
(b) Weight Verification of weight Spring balance +/- 1.0 Kg nil 1 in 50 Every batch In- House GRN Store Incharge
(c) Std consistency of cement Vicats test V'cats apparatus 24 to 35 % of water by wt. of
cement
IS:4031-1968 1 in 50 Every batch/
Week/per 500 MT
In- House Cement
testing
register
QC incharge
(d) Initial & final setting time Vicats test V'cats apparatus Initial time= >30min Final
time= <600 min
IS:12269-1987
IS:4031-1968
1 in 50 Every week/per
500MT
In- House Cement
testing
register
QC incharge
(e) Compressive Strength of Cement as per IS:4031-1968 Vibration,
M/c,mould,comp.t
est machine
Table No. IS:4031-1968
IS:650-1966
IS:4031-1968
IS:650-1966
1 in 50 Every batch/
Week/per 500 MT
External / in
house
Test
certificates/
Cement
testing file
QC incharge
(f) Fine ness. of cement. Sieve analysis 90 micron
sieve,weight,bala
nce
Residue left by wt of fines < 10% IS:269-1976 1 in 100 Every batch/
Week/per 500 MT
In- House Cement
testing file
QC incharge
(g) Soundness Test. Boiling test Le' chatelier
apparatus
Expansion < 10mm IS:5514-1969 Random Monthly/Per
500MT
In- House Cement
testing file
QC incharge
(h) Specific gravity Le' chatlier test Le' chatelier flask 3.1 to 3.15 IS: 4031-1968 1 in 50 Weekly or per
500MT
In- House Cement
testing file
QC incharge
(I) Fineness of cement Blain's test Blain's air
permiabilty
appartus
More than 2250 Sq.cm/gm IS: 4031-
1968,IS:269-1976
1 in 50 Weekly or per 500
MT
In- House Cement
testing file
QC incharge
2Sand
(a) Silt Content Sedimentation
Method
Measuring
Cylinder
Max 8% in 10 min IS:2386-1963 part -
ii
Random Per Truck/ Weekly In- House Sand testing
file & GRN
QC incharge
(b) Moisture Content Drying/Weighing or
by visual inspection
Weight balance,
hot plate or
Aquameter
nil IS:2386-1963 Every Pour Per Truck/ Twice
in a day while
concreting
In- House Sand testing
file
QC incharge
© Deletorious Substances as per IS:2386-1963 -
Part-II
5% of by weight of F.A IS:2386 Random For change of
source or six
month
External Test
certificate
QC incharge
(d) Finenens Modulus Sieve analysis IS:sieves FM : 2.5 to 3.5 for N.sand & FM:
2.2 to 3 for C.sand
IS:2386-1963/
Tech. Specification
Vol-II
Random Weekly/ At the
time of production
from crusher
In- House Gradation
File.
QC incharge
(f) Specific gravity & water absorption IS:2386-1963 Part-III Pycnometer -- IS:2386 part iii Random Monthly or Change
of source.
In- House Sp. Gr. Of
F.A. and C.A.
file.
QC incharge
(h) 75 mic wash Washing test IS:sieves Not more than 15% Technical Sp.Vol.-
II
Random Monthly In- House Sand testing
file
QC incharge