Concrete Waffle Slabs
From the grid pattern, we know that they are waffle slabs made of reinforced concrete. They grid pattern allows concrete ribs running in 2 directions perpendicular to each other on its underside.

As it appears in public area, dust and dirt can be found on the surface. Besides, there are imperfection at junctions between slabs.
 
Concrete Texture: Corinthian Columns
It is a concrete texture composed of Corinthian columns. Due to weathering and aging, a lot of wear and cracks appear on the surface.

Despite its name columns, this texture suits extremely well for walls and urns.
Concrete Plates
It is a concrete wall made of numerous concrete plates. Due to weathering, the concrete plates have cracks, pores and dirt.

If you are going to 3D model a concrete wall, please do not miss this texture!
 
Corrugated Metal Sheet
It is a classical corrugated metal sheet where is commonly used to build walls of factories or construction sites.

Dirt and edge wear can be found on this texture.
Black Floor with White Dots and Dirt
It is a black floor with commonly seen white dot pattern. Dirt can easily be found on the surface, so it is a perfect texture for paving a ground of public area in your CG scene.
Wood Planks with Nails
They are wood planks with nails. By close examination, there are rust on some nails. The edges of the planks have worn. and a lot of dirt and dust rests on the wood.

Near grouts, mosses may also be found.
Corroded Iron Sheet with Rusty Scratches
This is an oxidized iron sheet on which there is numerous scratches and dents. Most of the scratches and pits corroded and are covered with rust. Besides, some of the rust is dripping down due to the rain wash.
Muddy Ground with Footsteps in Sludge
This is mostly a muddy ground having some footsteps on the squelchy sludge. A few heavier footsteps squish the mud deeper. It creates puddles everywhere.
Red Brick Wall Partially Plastered
It is a classic red brick wall. On the top is a thin layer of plaster that has a botched workmanship. Brush strokes are prominent. Besides, the plaster only covers some parts of the wall.
Dusty Black Cladding Ground Texture
It is a black cladding with a lot of dust and mud on the surface. There are also numerous worn and cracks on each cladding plate. Besides, pebbles scatter all over the ground.
Old and Worn Tiles with Star-shaped Patterns
These are classic old tiles with star-shaped patterns printed. The tiles become yellowish due to aging. The edges of tiles are worn to reveal its history.

Dirt and dust can also be found on the floor. Dents occasionally appear on some tiles.
Old Chewing Gum Texture
They are old chewing gums spitted on the floor. Some streets are full of black patches of chewed gums spilled around.

They are dark in colors as people stepped on them. This also left loads of shoe marks and dust on these gooey gums.
Dry Muddy Ground Texture with Cracks Everywhere
This is a dried muddy field during a drought. After losing all the water, large and small cracks appear everywhere. There are small stones scattering around the soil.

This texture is great for texturing a non-irrigated farmland.
Banana Skin with Brown Spots
This is a ripen banana skin having brown spots scattering everywhere. Parallel striping texture can be seen by close examination.

The enzymatic browning creates not only black dots, but also brown patches.
Cleaning Sponge Texture
It is clear that this is a sponge texture. There are a lot of sponges. This texture is more like those cleaning sponge that you can find in your kitchen.

There are a lot of large and small pores on the surface. Some parts have been worn due to long time of usage.

I would recommend to use it together with scattering option on.
Dirty Wash Cloth Texture with Cross Pattern
This is a fabric texture having double sewing lines in cross pattern. It is kind of a wash cloth which is commonly found in kitchen. It can also be applied as a hand towel texture.

It has quite a lot of dirt that makes it looks like a old cloth.

Additionally, you can also use it to make a dress.
Carpet or Rug Texture
This texture is appropriate for texturing carpet or rug types of fabrics. Its patterns are arranged in grids and each grid has a fluffy ball-shaped fabric.

It is highly recommended to enable scattering in your shader to make it more photorealistic. Otherwise, it might looks like a hard plastic.
French Mosaic Tiles Texture
These are fan-shaped French mosaic tiles. Their colors are made of different tonal grey ranging from light grey to dark grey.

Dirt and dust could be found on the surface.

It is a splendid material for texturing pavement or sidewalk. It can be used for wall texturing though.
Vintage Style Floor Tiles
This green and grey pattern is a classic tile which can be found in many old houses.

Yellowish dirt can be found along edges of the tiles due to aging.

Besides, dirt and edge wear appear everywhere.
Brown Stone Cladding Texture for Walls and Grounds
It is a stone cladding texture made of many pieces of irregular brown stone.

The stone type is more like fieldstone having rather smooth and shiny surface.

This texture can be used to texture walls and grounds.
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