Specifications for the project required a minimum concrete strength of 3,000 psi before placing and compacting backfill against the wall. As shown in Table 1, elapsed times and in-place concrete ...

Table 1) are achievable. The rate of concrete hardening and strength gain depends on the temperature of the concrete. Low concrete temperatures decrease the rate of hydration and subsequently ...

For added strength, the form was only half-filled, and a mesh was added for reinforcement. The rest of the concrete was then poured in to complete the tabletop. The table legs themselves were ...