Flash flood: new water-absorbing concrete Topmix Permeable can absorb 36 meters of rain in 1 hour

The video discusses the permeability of traditional concrete compared to top mix, a type of no-fines concrete made from crushed granite. Top mix allows better water passage and comes in three designs: full infiltration, partial infiltration, and full attenuation, each serving different water management purposes.

How much water can traditional concrete absorb per hour?

• 300 millimeters

• 200 millimeters

• 100 millimeters

• 400 millimeters

What is the primary material used in top mix concrete?

• Limestone

• Crushed granite

• Sand

• Clay

Which design of top mix sends water directly to the soil beneath?

• Semi-permeable

• Partial infiltration

• Full infiltration

• Full attenuation

What feature does partial infiltration include?

• No drainage system

• Direct soil absorption

• A semi-permeable barrier

• A capture system

What is the purpose of full attenuation in top mix designs?

• To store and reuse water

• To increase water flow

• To prevent water absorption

• To block water completely