The phrase "a solid slab" is correct and usable in written English.
It can be used to describe a thick, flat piece of material, often in contexts related to construction, architecture, or art.
Example: "The table was made from a solid slab of oak, giving it a sturdy and elegant appearance."
Alternatives: "a thick block" or "a firm panel."
Mr. Keith is a solid slab of a man, a former football player and Oklahoma oilhand.
Åland pancakes – a solid slab of semolina, milk, sugar and cardamom – help boost morale in the face of icy winds.
Even if you're not a consumer of Zegna or its fabrics, in your mind's eye you probably see a solid slab of gray.
Inside, functional proves slightly less beautiful – although the dashboard's naked, satin-finish carbon fibre and a centre console machined from a solid slab of aluminium are as pure as you can get in construction media.
The inner room, or Holy of Holies, was thought to be the actual dwelling place of the God of Israel, who sat invisibly enthroned above a solid slab of gold that rested on the Ark of the Covenant and had a cherub at each end.
But the Tab is a solid slab of electronics.
Compared to a conventional solid slab, the spacing of the diagonal cracks was relatively large, and only a few small-width diagonal cracks were observed in donut-type voided slab.
Therefore, the donut-type voided slab with the spacer-type fixing method can be considered to behave symmetrically in both the X- and Y-directions, like a conventional solid slab under two-way bending.
The initial setup for a planar interface simulation was a liquid or solid slab of 1000 molecules in the center of a simulation box elongated in the z direction.
As reported by Ibrahim et al. (2013), a voided slab with spherical voids behaved like a conventional two-way solid slab.
A two-way version of pan joists, called the waffle slab, uses prefabricated hollow sheet-metal domes to create a grid pattern of voids in a solid floor slab, saving material without reducing the slab's strength.
