video preview: https://youtu.be/ApRs5dSjIgE 
Square paving slabs made of stone after rain laid in a radial way.
The density of the puddles is adjusted in the wet_mask_noise procedural map the total wetness is adjusted through the spec_map intensity.
The actual size is 3×3 meters.

Highly detailed seamless textures:
JPEG Diffuse Specular Normal AO Displacement (EXR 32-bit): 4096x4096px

The .max file contains a customized Vray (Corona) PBR material with Displacement (2cm) you can turn it off for distant shots.
system units: centimeters
*Vray 4 Corona 7 and UP
*FBX does not save the parameters of the Output and Curves maps a screenshot with the correct parameters is attached.