Technical Questions

Question: What is the importance of consolidation on strength?

Question: Why is consolidation needed?

Question: How does the temperature influence curing?

Question: False and flash set

Question: How can durable aggregates be ensured?

Question: The importance of proper drainage

Question: The earliest use of portland cement

Question: The purpose of calcium sulfate (gypsum)

Question: Definition of “hot cement”

Question: Characteristics of cement that affect compressive strength

Question: What is slag cement or ground granulated blast-furnace slag (GGBFS)

Question: The effect of pozzolans on water demand

Question: What is shotcrete and when is it used?

Question: How is concrete consolidated?

Question: How should the concrete be consolidated to obtain a complete filling of the forms and around the...

Question: What is the purpose of finishing and texturing concrete surfaces?

Question: What is the effect of freezing on concrete?

Question: Can the heat liberated by the hydrating cement be relied on to give protection during cold weather?

Question: When is steam curing used?

Question: How can the effectiveness of curing be measured?

Question: How are properties of concrete in the structure measured?

Question: How is the permeability of concrete determined?

Question: Form release agents

Question: Popouts or popoffs?

Question: Consolidation of concrete—required or not?

Question: When should saw cuts be made on a concrete slab?

Question: Why might fibers “ball up” in concrete mixes?

Question: Alternative methods for measuring crack width