Question

What is the effect of prolonged mixing on the workability of concrete? Describe briefly giving the reasons.

Answer 1

Generally we go for prolonged mixing when trucks are delay to site due to different conditions.

Because of prolonged mixing of concrete what effects we are going to face mentioned below.

1. For good workability, prologoned mixing is the good technique to use.

2. Definitely changes occurs in compressive and tensile splitting strength of concrete

3. Results also different when compared tripled method of mixing and normal mixing method.

4. For tensile splitting strength, the changes up to 8.5% and changes is less negative in normal method when comapred to triple mixing of concrete