Civil Engineering Inspections

andnbsp;

GEOTECHNICAL SPECIAL INSPECTIONS

"" "" ""

Materials	Test to be conducted	Ref. IS Codes	Frequency of Inspection / Testing
Soil	Sand Replacement Method (including calibration of rapid moisture metre)	IS 2720 , specification	At every 100 m2 of compacted area for small plinth filling
	Choice /suitability of soil LL,PL, Shrinkage limit, grain size analysis		At every 500 m3. of compacted earth filling for mass filling work or a day work. which ever is minimum
			Once for one borrow area as marked by contractor and as instructed by client’s representative
	Proctor Test (Heavy compaction)		Once for each source of earth or as required by engineer
Fine Aggregates	Total Deleterious materials content (Clay lumps, Coal, Lignite, Soft particles or impurities)	IS 2386 part-II	Once per source .
	Water absorption (if >2% found,soundness test is required)	IS 2386 part-II	Once per Month .
	Sp. Gravity	IS 2386 part-II	Once per month .
	Silt and clay content	IS 2386 part-II	Every day for first 7 days and later once in every week.
	Particle size distribution	IS 2386 part-I andIS 383	Twice in a week (DAILY)
	Moisture Content	IS 2386 part III and IS 383	Once in day except during monsoon when it has to be done at least twice a day / during the work (Subjected to producing Structural Conc.at site)
Coarse Aggregates	Particle size distribution	IS 2386 part-I 383	One test daily for first 7 days recd. Of materials , latter twice for every week but insp. through only 20MM/ 10MM sieve for every 5 truck received qty. at site .
		Percentage of soft deleterious material	IS 2386 Part- II	Once per source .
		Moisture Content	IS 2386 part- III IS 383	Once in day except, during monsoon,for every load
		Flakiness Index	IS2386 Part-I	Once in every Week.
		Elongation Index	IS 2386 Part-I	Once in every Week.
		Mechanical Properties	IS 2386 part-IV	Twice per Month .
		Agg. Crushing value
		Impact Value
		Chloride and sulphate content	IS-456	Once per source .
		Water absorption (if >2% found,soundness test is required)	IS 2386 part-II	Once per month .
		Sp. Gravity	IS 2386 Part-III	Once per month .
		Petro graphic Analysis	IS 2386 Part-VIII	Once per source .
		Alkali Aggregate reaction	IS 2386 part-VII	Once per source .
Water	Chemical and Physical properties	IS- 3025	From each source before start of work .
		PH value	IS-456	Once Initially thereafter once in a month .
Cement	Material Test Certificates	Check batch no.	Every Lot after receiving at site
		Compressive strength	IS-4031 part- VI	Every batch received at site.
		Chemical Analysis	IS-4032	Every batch received at site.
		Fineness (Blaine air permeability method)	IS-4031 part- I	Every batch received at site.
		Initial and final setting time	IS-4031 part- V	Every Batch received at site.
		Consistency of cement	IS-4031 Part-IV	Every Batch received at site.
		Soundness	IS-4031 part- III	Every batch received at site.
Admixture	Raw material test certificates	As per IS 9103	Every lot of sample
		Relative density,pH value, field trial,solid content, bleeding percentage		Every Lot of sample
		Air Content		Every lot of sample
Concrete	Slump test,temperature of concrete	IS-456, IS-1199	As required by Engineer (Concrete of Each Transit Mixer should be checked prior to pour at site)
		Compressive strength (each test sample compressing of 6 cubes of 15 CM size)	IS-516,1199,456	As per Is 456:2000
			IS 456-2000	The cube samples shall be taken for each grade of concrete for following daily concrete quantity
		Chloride and sulphate content	IS-456	In the beginning and with change of any source .
		Setting Time of concrete	IS-8142	Once in a month for each grade of concrete and each different brand of cement during production and at the time of approval of mix design
		Air content of concrete	IS 1199	Once in a day
		Permeability of concrete	IS-3085	Once in a month for each grade of concrete
Reinforcement	Rolling Margin	IS-1786-1985	Each lot (client Supply Material)
Steel	Chemical	IS-1786-1985	Every lot.
	Physical	IS-1786-1985	Every lot.
Bricks	Water absorption	IS-3495,1077 and tech spec.	Once for each stack and Brand of 10000 nos.
		Visual and Dimensions	IS-1077 and tech spec.	Once for each stack and Brand of 10000 nos.
		Efflorescence	Tech. Spce.	Once for each stack and Brand of 10000 nos.
		compressive strength	IS-1077 and tech spec.	Once for each stack and Brand of 10000 nos.
Batching plant	Calibration	IS- 4925/4926/456	Once in a month.
		Storage and stacking of materials.	Specify code and spec no.	Daily
		Admixture mixing proportion and review of manufacturer’s spec.		Daily
		Review of batch card and register.		Daily
		Temperature of concrete		Daily as per requirement or twice in a day
		Cube test for 7 days and 28 days.		Regularly
Tiles, Doors, Window, Paint, Plumbing Materials, Bolts etc all incoming maerials.	MTC	Specification	Each lot
Calibration	Calibration of test equipment		As per frequency set in Laboratory Manual
NCR	Control of nonconforming product		On occurrence of Nonconformity
Notification to customer	as and when require		On receipt of non-conforming material of customer / client