What type of admixtures would you recommend for concreting


Problem

1. Mineral acids are accelerators for portland cement, but organic acids do not show a consistent behavior. Explain why.

2. Formic acid is an accelerator, while gluconic acid is a retarder. Explain why.

3. What type of admixtures would you recommend for concreting in: (i) hot weather, (ii) cold weather.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.

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