Mix Design with 20mm Down Aggregates
2009-10
REPORT ON MIX DESIGN
M-10 (20 mm down) with 38.5% FA
FIELD QUALITY ASSURANCE DEPT
Mix Design for M-10 Grade of Concrete
1) Design Stipulation –
a) Characteristic compressive strength required in the field at 28 days b) c) Maximum size of aggregate Degree of workability - 10 N/mm2 - 20 mm - 75 – 125 mm - Good - Moderate - 2%
d) Degree of Quality e) f) Type of Exposure Entrapped Air content (max 20 mm)
2) Test Data for Materials –
A) CEMENT a) Cement - Shree Ultra OPC 43 grade b) Specific Gravity - 3.15 B) AGGREGATE -
Sieve Size 1. Impact Value 1.% Water Absorption 2. Specific Gravity 3. Silt Content 4.Flakiness Index 5 Fineness Modulus
20 mm 10 mm MECHANICAL PROPERTIES 17.33 % NA PHYSICAL PROPERTIES 0.21 0.33 2.7 2.69 NA NA 14.01 % 16.12 % NA NA
Sand NA 1.06 2.64 3.08 NA 3.12
C) ADMIXTURE –
Fosroc Conplast SP 430 3) Target Mean Strength of Concrete – (As per IS -10262) The target mean strength of concrete for M-10 Grade = 14 N/mm2
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4) Water Cement Ratio (W/C) – a) Corresponding to TMS b) Corresponding to Exposure Condition (IS 456-2000 table no.5) So, Water Cement Ratio = 0.6 Fine aggregate as % of total aggregate by weight – 45 % (after trials) 5) Individual Aggregate Gradation – (As per IS 383-1970)
Sieve size in MM
- 0.7 - 0.6
20 MM % Passing 1 100 95.62 2 100 94.3 3 4 Avg Limit 100 100 100 100 96.71 94.15 95.2 85-100 7.98 0.7 12.33 10.5 0.88 0.9 0-20 0-5 1 100 100 98.86 9.86 2.36 2 100 98.2 92.64 11.89 2.46 3
10 MM % Passing 4 Avg 100 98.65 91.8 10.3 2.5 Limit 100 100 85-100 0-20 0-5
25 20 12.5 10 4.75 2.36
10.51 11.12 0.94 1.05
100 100 96.4 100 91.2 92.66 8.96 10.28 3.32 1.98
Sieve size in MM
SAND 1 100 91.81 80.65 74.14 41.3 15.81 5.49 0.2 2 3 100 100 92.64 91.63 82.38 83.66 64.68 71.9 40.62 43.4 18.48 13.3 5.96 4.72 0.14 0.18 % Passing 4 5 Avg 99.68 99.76 99.89 91.45 95.45 95.45 83.6 87.5 83.6 70.36 70.94 70.4 39.85 40.75 41.2 17.9 15.91 16.3 5.42 3.41 5.4 0.6 0.8 0.38 Limit
REPORT ON MIX DESIGN
M-10 (20 mm down) with 38.5% FA
FIELD QUALITY ASSURANCE DEPT
Mix Design for M-10 Grade of Concrete
1) Design Stipulation –
a) Characteristic compressive strength required in the field at 28 days b) c) Maximum size of aggregate Degree of workability - 10 N/mm2 - 20 mm - 75 – 125 mm - Good - Moderate - 2%
d) Degree of Quality e) f) Type of Exposure Entrapped Air content (max 20 mm)
2) Test Data for Materials –
A) CEMENT a) Cement - Shree Ultra OPC 43 grade b) Specific Gravity - 3.15 B) AGGREGATE -
Sieve Size 1. Impact Value 1.% Water Absorption 2. Specific Gravity 3. Silt Content 4.Flakiness Index 5 Fineness Modulus
20 mm 10 mm MECHANICAL PROPERTIES 17.33 % NA PHYSICAL PROPERTIES 0.21 0.33 2.7 2.69 NA NA 14.01 % 16.12 % NA NA
Sand NA 1.06 2.64 3.08 NA 3.12
C) ADMIXTURE –
Fosroc Conplast SP 430 3) Target Mean Strength of Concrete – (As per IS -10262) The target mean strength of concrete for M-10 Grade = 14 N/mm2
Page 2
4) Water Cement Ratio (W/C) – a) Corresponding to TMS b) Corresponding to Exposure Condition (IS 456-2000 table no.5) So, Water Cement Ratio = 0.6 Fine aggregate as % of total aggregate by weight – 45 % (after trials) 5) Individual Aggregate Gradation – (As per IS 383-1970)
Sieve size in MM
- 0.7 - 0.6
20 MM % Passing 1 100 95.62 2 100 94.3 3 4 Avg Limit 100 100 100 100 96.71 94.15 95.2 85-100 7.98 0.7 12.33 10.5 0.88 0.9 0-20 0-5 1 100 100 98.86 9.86 2.36 2 100 98.2 92.64 11.89 2.46 3
10 MM % Passing 4 Avg 100 98.65 91.8 10.3 2.5 Limit 100 100 85-100 0-20 0-5
25 20 12.5 10 4.75 2.36
10.51 11.12 0.94 1.05
100 100 96.4 100 91.2 92.66 8.96 10.28 3.32 1.98
Sieve size in MM
SAND 1 100 91.81 80.65 74.14 41.3 15.81 5.49 0.2 2 3 100 100 92.64 91.63 82.38 83.66 64.68 71.9 40.62 43.4 18.48 13.3 5.96 4.72 0.14 0.18 % Passing 4 5 Avg 99.68 99.76 99.89 91.45 95.45 95.45 83.6 87.5 83.6 70.36 70.94 70.4 39.85 40.75 41.2 17.9 15.91 16.3 5.42 3.41 5.4 0.6 0.8 0.38 Limit