From a 2 mm coating to a 30 mm panel, why terrazzo is thick, and when thin is the right answer.
14 questions in this harvest fall under this subject. 4 answered so far.
There is no single answer, because terrazzo covers a 2 mm coating and a 30 mm pressed panel. Cement-bound and poured floors are usually 10-15 mm, precast panels 20-30 mm, epoxy 3-6 mm and liquid terrazzo under 3 mm. Which one you need is decided by the span and the substrate, not by preference.
The Chinese standard enumerates them: lengths from 300 to 3200 millimetres, widths from 300 to 1800, thicknesses of 15, 20, 25, 30, 40, 50 and 60 millimetres. That is a real list rather than the custom-order answer most suppliers give, and it means a 3200 by 1600 by 20 panel is a standard-compliant product and not an exception.
Twelve to eighteen millimetres for an installed terrazzo topping, and the code does not leave it as a preference: JC/T 507-2022 limits the largest stone chip to two thirds of the topping thickness. Twelve millimetres of topping therefore caps the chip at eight, and eighteen millimetres allows twelve.
A precast panel with the aggregate running through its whole thickness rather than a thin topping on a thicker slab, made in the 8 to 12 millimetre band. The consequence is arithmetic: at 8 millimetres the largest chip the code allows is about 5.3. You are buying a different look as well as a different thickness, and the look is fine aggregate.
These are the phrasings people typed, not headings we invented. Where one has an answer the link is live; where it does not it is printed plain, and that is deliberate — a printed question with nothing behind it is an honest promise, and hiding it is not.
Ordered by how many questions each one holds.