Author:Netterberg, F; De Beer, MorrisDate:Apr 2012Weak layers, interlayers, laminations and/or interfaces in the upper structural layers of road pavements are specifically prohibited in most road-building specifications. However, such layers are extremely common and often lead to premature ...Read more
Author:Netterberg, F; Paige-Green, PhilDate:Jul 1988The requirements of and some specifications for wearing courses for unpaved roads are reviewed. It is concluded that further development of specifications is required, and that there is probably great scope for improvement of our unpaved roads ...Read more