Technical Bulletins


Use of SMA in Hong Kong

SMA was developed in Germany in mid-1960s and it has spread throughout Europe and across the world in 1980s and 1990s. The excellent performances include resistance to mechanical and temperature deformation (cracking and rutting), resistance to weathering actions such as aging and low-temperature cracking. Durability is excellent even under slow moving heavy traffic. The textured surface increases skid-resistance and provides environmental and driving comfort by reduced noise level, and improved visibility in rainy days.

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Performance and development of robust SMA in Hong Kong

Despite wide applicati