Table 3: Details of Fly ash Mortar Mixes
|
Table 4: Details of Nominal Plain Concrete Mixes
|
Table 5: Proportion Used by NCB for M20 Reinforced Concrete
|
|
The built environ |
|
Trendy article |
|
Standard Mortar Mixes |
Fly ash Mortar mixes proportion by Volume |
Compressive Strength (N/mm2) 28 Days |
||
|
Cement |
Fly ash |
Sand |
||
|
1 : 4 |
1 |
0.6 |
4 |
15.6 |
|
1 : 6 |
1 |
0.9 |
6 |
8.9 |
|
Nominal Concrete Mixes |
Equivalent Fly ash mixes by volume |
Compressive Strength (N/mm2) 28 Days |
|||
|
Cement |
Fly ash |
Sand |
Aggregate |
||
|
1 : 4 : 8 |
1 |
1.5 |
4 |
8 |
11.5 |
|
1 : 3 : 6 |
1 |
1.5 |
3 |
6 |
13.5 |
|
Quantity, Kg/m3 of Concrete |
||
|
Materials |
PFA
|
OPC |
|
Cement |
267 |
336 |
|
Fly ash |
164 |
Nil |
|
Water |
210 |
212 |
|
Sand |
626 |
704 |
|
Aggregate |
1051 |
1065 |
|
Superplasticizer |
3.0 |
3.0 |
|
PAGE 7 |