Final answer:
The keyway between precast-concrete hollow-core slabs is a groove or recessed channel that interlocks adjacent slabs, providing stability and load distribution. It ensures secure connection, resists lateral forces, and prevents differential movement.
Step-by-step explanation:
The keyway between precast-concrete hollow-core slabs is generally a groove or recessed channel that is designed to interlock adjacent slabs. It provides stability and helps distribute loads between the slabs, creating a strong and seamless connection. The keyway is typically formed by a metal or plastic form that is placed between the slabs during the casting process.
For example, in a construction project where precast-concrete hollow-core slabs are used for floor or roof systems, the keyway ensures that the slabs are securely connected and can resist lateral forces such as wind or seismic loads. The keyway also prevents differential movement between the slabs, helping to maintain the structural integrity of the overall system.
Overall, the keyway between precast-concrete hollow-core slabs is an important feature that enhances the performance and durability of the construction system.