Geosynthetics in roads and pavements

ROLLED EROSION CONTROL 

PRODUCTS 

ON SLOPES AND IN CHANNELS

 

 

Introduction to the Problem 

 

Straw or hay can be chopped and blown onto a 

pre-seeded soil bed to provide mulching benefits 

during seed germination.  The straw or hay 

fragments are secured to the ground surface by 

crimping, punching, tacking, netting or, in many 

cases, by nothing at all.  Yet, the integrity of 

these mulches can be severely effected by: 

• 

rain; 

• 

wind; 

• 

overland flow; and 

• 

biological forces. 

As a result, conventional mulches provide, at 

best, only a few weeks or months of protection 

to the bare soil often making grading and 

reapplication necessary.