What does a shoring scaffold provide for slab forms?

A shoring scaffold primarily provides falsework for slab forms, which is a temporary structure used to support the weight of the concrete until it has fully cured and can support itself. This is essential during the pouring and setting process, as the freshly placed concrete needs adequate support to maintain its shape and integrity.

Falsework, which comes into play with shoring scaffolds, ensures that the forms remain in the correct position while the concrete sets, preventing any movement or collapse that could occur if the forms were unsupported. It's crucial in maintaining the profile and level of the concrete slab throughout the curing period, thus ensuring structural stability once the formwork is removed.

The other choices do not accurately describe the primary function of shoring scaffolds. For example, while they may provide support for walls or stability for ladders in some contexts, their main purpose in relation to slab forms is to serve as falsework.