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After many mix design trials for 1-year at different approved quality control lab in Jeddah - using different sources of natural pozzolana, OPC cement type i, ii and iii cement and IP cement-,

 I got the highest strength and highest workability in  History form local natural pozzolana within at 1 and 3 days. These American mix design had type ii cement and low w/c ratio.

I had the following results for cube strength design of 32 MPa (28 days) and 400 kg of total cement

 ALT D-32 MPA

 

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After many mix design trials for 1-year at different approved quality control lab in Jeddah - using different sources of natural pozzolana, OPC cement and IP cement-, I had the following results for cube strength design of 40 MPa (28 days) and

total cement  > 400 kg

 

 RED D-40 MPA