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Tests frequency and Acceptance Criteria in Testing of material for structures as per quality assurance level Q-4 of IRC: SP47-1998 and other IRC, and MORTH  Specifications.

S. NoType of ConstructionFrequency LocationAcceptance Criteria
1.0

 

Frequency and Acceptance Criteria in Testing:

1.1

For Coarse Aggregate:

(i)Moisture Content (IS:383, IS:2386 Part III)Daily/at every day of  concretingPlantMax. 5%
(iI)Specific Gravity (IS:383, IS:2386 – Part III)1) One per source and when source changesPlant
(iii)Gradation/Sieve Analysis (IS:383, IS:2386 – Part 1)DailyPlantTable 1000-1 of MOSRTH Specifications for Road and Bridge Works
(iv)Aggregate Impact Value/Los Angles Abrasion Value (IS:383, IS:2386 Part IV)1) One per source

 

2)  Weekly

PlantAggregate Impact Value 45% Max. for concrete other than for wearing surfaces; 30% Max. for concrete for wearing surfaces.

 

Los Angles Abrasion value

50% Max. for Concrete other than for wearing surfaces; 30% Max. for Concrete for wearing surfaces.

(vi)Flakiness Index (IS:383,IS:2386 Part 1)1) One per source

 

2) Weekly

PlantMax.  35%

 

MORTH Clause of 1007.

(vii)Water absorption of Aggregate (IS383, IS:2386 Part III)1)One per source

 

2) when sourcing changes

PlantMax.   10%
(viii)Soundness (Magnesium and sodium sulphate)

 

IS:383, IS:2386 Part V)

1) One per sourcePlantSodium sulphate

 

Max.  12%

Magnesium sulphate

Max.  18%

(ix)Alkali-Aggregate reactivity (IS:383, IS:2386 Part VII, IS: SP-23)1) One per sourcePlantFig. 6 of IS:2386 Part VII
(x)Petrographic Analysis (IS:383, ASTM 295, IS:2386 Part VIII)1)    One per sourcePlantAs per IS: 2386 Part VIII
1.2

For Fine Aggregate:

(i)Silt Content (IS:383, IS2386 Part II)DailyPlantMax. 3%
(ii)Moisture Content (IS:383,IS:2386)At every day of concretingPlantMax. 5%
(iii)Gradation/Sieve Analysis, Fineness Modulus (IS:383, IS:2386 –Part III)DailyPlantTable 1000-2 of MORTH Specifications for Road and Bridge Works.

 

Fineness Modulus

Min. 2.0%

Max 3.5%

(iv)Water absorption of Aggregate (IS:383, IS:2386 Part 3)1) One per source

 

2)when sourcing changes

PlantMax 10%
(ix)Soundness (Magnesium and Sodium Sulphate)

 

IS:383, IS:2386 Part V)

One per sourcePlantSodium sulphate Max. 10%

 

Magnesium sulphate Max. 15%

1.3

For Ordinary Portland Cement:

1.3.1

Physical Tests (IS:8112)

   
(i)Initial Setting Time1) One per supply

 

1) Monthly

PlantMin. 30 minutes
(ii)Final Setting Time1) One per supply

 

2) Monthly

Plant Max. 600 minutes
(iii)Soundness (by Le-Chatlier’s method)

 

By Autoclave (%) (IS:4031)

One per supplyPlantMax. 10mm

 

Max. 0.8%  

(iv)Fineness (by Blaine’s air permeability method) IS:4031 part-2One per supplyPlantMin. 225 m2/kg
(v)Compressive strength1) One per supply

 

2) Monthly

PlantMin. 23 MPa (3 days)

 

Min. 33 MPa (7 days)

Min. 43 MPa (28 days)

1.3.2

Chemical Tests (IS:8112)

   
(i)Loss on IgnitionOne per supplyPlantMax. 5%
(ii)Insoluble residueOne per supplyPlantMax. 2%
(iii)Alumina Iron Oxide ratioOne per supplyPlantMin. 0.66
(iv)Lime Saturation factorOne per supplyPlantMin. 0.66 Max. 1.02
(v)MagnesiaOne per supplyPlantMax. 6%
(vi)Sulphuric anhydrideOne per supplyPlantMax. 3%
(vii)AlkaliesOne per supplyPlantMax. 0.6%
(viii)ChloridesOne per supplyPlantMax. 0.05%

1.4

For Water (IRC:21-2000/IS:3025):

(a)The volume of 0.02N NaOH required to neutralize 100 ml sample of water using phenolphthalein as an indicator (IS:3025)1) One per supply

 

2) Monthly

In situMax. 5.0ml
(b)The volume of 0.02N  H2SO4  

 

required  to neutralize 100 ml sample of water using methyl orange as an indicator (IS:3025)

1) One per source

 

2) Thrice in a year

InsituMax. 25.0ml
(c)Solids (IS:456, IS:3025)   
(i)Organic1) One per source

 

2) Thrice in a year

Insitu200 mg/lit
(ii)Inorganic1) One per source

 

2) Thrice In a year

Insitu3000 mg/lit
(iii)Sulphates (SO4)1) One per source

 

2) Thrice in a year

Insitu500 mg/lit
(iv)Chlorides (CI)1) One per source

 

2) Thrice in a year

Insitu500 mg/lit
(v)Suspended matter1) One per source

 

2) Thrice in a year

Insitu2000 mg/lit
(d)pH1) One per source

 

2) Thrice in a year

InsituMin. 6.0
1.5

Acceptance Criteria in Testing For Admixture:

(i)Chloride Content (IS:9103, IS:6925)1) One per supply

 

2) Yearly

PlantWithin 10% of the value or within 0.2% whichever is greater as stated by the manufacturer.
(ii)Dry Material content (IS:9103)1) One per supply

 

2) Yearly

Plant5% of liquid admixtures respectively of the value state by the manufacturer
(iii)Ash content (IS:9103)1) One per supply

 

2) Yearly

PlantTo  be within 5% of the value stated by the manufacturer
(iv)Relative density (IS:9103)1) One per supply

 

2) Yearly

PlantTo be within 2% of the value stated by the manufacturer.
1.6

Acceptance Criteria in Testing for Concrete:

(i)Chloride Content (IS:10262, IS:456,IRC:21) One  per New sourcePlantMax. 0.1% by mass of cement for PSC and 0.3% for RCC
(ii)Sulphate Content as SO(IS:456, IRC:21)One  per New sourcePlantMax. 4% by mass of cement
(iii)Air Content (Table 3, IS:10262)MonthlyPlantNominal max. size of aggregateEntrapped air as % of the volume of concrete
10mm3.0
20mm2.0
40mm1.0
(iv)Mix proportionEvery batch of concretePlantAs per approved mix design
(v)Sample of the cube (A sample means a set of 3 cubes)Every concrete spread over the entire period of concretingInsituQty of concrete (m3)No. of samples
<30

 

31-50

51 & above

3

 

4

4 + One additional for each 50 m3

(vi)Workability (Slump) (IS:10262,IS:456, IRC:21)Every batch of concrete at despatch as well as the delivery pointIn situAs specified for specific Grade, structural component and method of concreting
(vii)Temp. of Fresh concrete (MORTH Specs. Clause 1709)Every batch of concrete at despatch as well as the delivery pointInsituMin. 5° C

 

Max. 40°C

(viii)The density of Hardened ConcreteEvery batch of concretePlant
(ix)Permeability (MORTH Specs. Clause 1716.5)As and when requiredPlantDepth of penetration of water Max. 25mm
(x)Cube Strength of ConcreteEvery batch of concretePlant(i)  Mean strength from any group of four consecutive samples should be greater than Characteristic strength + 3 MPa

 

(ii)  Individual sample not less than  Characteristic str – 3 MPa

1.7

Acceptance Criteria in Testing For Mastic Asphalt:

(a)BinderOne  sample  per LotStacking yardAs per Table 500-29 of MORT&H Specifications for Road and Bridge Works
(b)Filler (Limestone powder) (IS:1514)One  sample  per LotStacking yardPowder passing the 0.075 mm sieve and having calcium carbonate content not less than 80% by weight.
(c)Mix proportionsOne sample per LotInsituAs per JMF to be laid between 175° and 210°C
d)Hardness no IS:1195-1978In situIn situ60-80 at 25ºC before addition of C.A. and 10-20 at 25ºC at the time of after addition of C.A.

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Acceptance Criteria in Testing of Materials for Structures
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Acceptance Criteria in Testing of Materials for Structures
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Tests, frequency and acceptance criteria in testing of material for structures as per quality assurance level Q-4 of IRC: SP47-1998 and other IRC, and MORTH  Specifications.
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Construction Civil
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