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. No Type of Construction Frequency Location Acceptance 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  concreting Plant Max. 5%
(iI) Specific Gravity (IS:383, IS:2386 – Part III) 1) One per source and when source changes Plant
(iii) Gradation/Sieve Analysis (IS:383, IS:2386 – Part 1) Daily Plant Table 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

Plant Aggregate 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

Plant Max.  35%

 

MORTH Clause of 1007.

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

 

2) when sourcing changes

Plant Max.   10%
(viii) Soundness (Magnesium and sodium sulphate)

 

IS:383, IS:2386 Part V)

1) One per source Plant Sodium sulphate

 

Max.  12%

Magnesium sulphate

Max.  18%

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

For Fine Aggregate:

(i) Silt Content (IS:383, IS2386 Part II) Daily Plant Max. 3%
(ii) Moisture Content (IS:383,IS:2386) At every day of concreting Plant Max. 5%
(iii) Gradation/Sieve Analysis, Fineness Modulus (IS:383, IS:2386 –Part III) Daily Plant Table 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

Plant Max 10%
(ix) Soundness (Magnesium and Sodium Sulphate)

 

IS:383, IS:2386 Part V)

One per source Plant Sodium sulphate Max. 10%

 

Magnesium sulphate Max. 15%

1.3

For Ordinary Portland Cement:

1.3.1

Physical Tests (IS:8112)

     
(i) Initial Setting Time 1) One per supply

 

1) Monthly

Plant Min. 30 minutes
(ii) Final Setting Time 1) One per supply

 

2) Monthly

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

 

By Autoclave (%) (IS:4031)

One per supply Plant Max. 10mm

 

Max. 0.8%  

(iv) Fineness (by Blaine’s air permeability method) IS:4031 part-2 One per supply Plant Min. 225 m2/kg
(v) Compressive strength 1) One per supply

 

2) Monthly

Plant Min. 23 MPa (3 days)

 

Min. 33 MPa (7 days)

Min. 43 MPa (28 days)

1.3.2

Chemical Tests (IS:8112)

     
(i) Loss on Ignition One per supply Plant Max. 5%
(ii) Insoluble residue One per supply Plant Max. 2%
(iii) Alumina Iron Oxide ratio One per supply Plant Min. 0.66
(iv) Lime Saturation factor One per supply Plant Min. 0.66 Max. 1.02
(v) Magnesia One per supply Plant Max. 6%
(vi) Sulphuric anhydride One per supply Plant Max. 3%
(vii) Alkalies One per supply Plant Max. 0.6%
(viii) Chlorides One per supply Plant Max. 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 situ Max. 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

Insitu Max. 25.0ml
(c) Solids (IS:456, IS:3025)      
(i) Organic 1) One per source

 

2) Thrice in a year

Insitu 200 mg/lit
(ii) Inorganic 1) One per source

 

2) Thrice In a year

Insitu 3000 mg/lit
(iii) Sulphates (SO4) 1) One per source

 

2) Thrice in a year

Insitu 500 mg/lit
(iv) Chlorides (CI) 1) One per source

 

2) Thrice in a year

Insitu 500 mg/lit
(v) Suspended matter 1) One per source

 

2) Thrice in a year

Insitu 2000 mg/lit
(d) pH 1) One per source

 

2) Thrice in a year

Insitu Min. 6.0
1.5

Acceptance Criteria in Testing For Admixture:

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

 

2) Yearly

Plant Within 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

Plant 5% of liquid admixtures respectively of the value state by the manufacturer
(iii) Ash content (IS:9103) 1) One per supply

 

2) Yearly

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

 

2) Yearly

Plant To 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 source Plant Max. 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 source Plant Max. 4% by mass of cement
(iii) Air Content (Table 3, IS:10262) Monthly Plant Nominal max. size of aggregate Entrapped air as % of the volume of concrete
10mm 3.0
20mm 2.0
40mm 1.0
(iv) Mix proportion Every batch of concrete Plant As 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 concreting Insitu Qty 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 point In situ As 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 point Insitu Min. 5° C

 

Max. 40°C

(viii) The density of Hardened Concrete Every batch of concrete Plant
(ix) Permeability (MORTH Specs. Clause 1716.5) As and when required Plant Depth of penetration of water Max. 25mm
(x) Cube Strength of Concrete Every batch of concrete Plant (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) Binder One  sample  per Lot Stacking yard As per Table 500-29 of MORT&H Specifications for Road and Bridge Works
(b) Filler (Limestone powder) (IS:1514) One  sample  per Lot Stacking yard Powder passing the 0.075 mm sieve and having calcium carbonate content not less than 80% by weight.
(c) Mix proportions One sample per Lot Insitu As per JMF to be laid between 175° and 210°C
d) Hardness no IS:1195-1978 In situ In situ 60-80 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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