HART to replace rail segment after large crack in concrete Posted: Apr 16, 2015 / 05:48 PM HST. Updated: Apr 16, 2015 / 05:48 PM HST. Posted: Apr 16, 2015 / 05:48 PM HST.

Current underwater concrete crack detection is mainly based on manual visual inspection and underwater probing by divers. These methods have several limitations, such as fragmentation of ...

Concrete sewage pipes lead a hard life, constantly being exposed to corrosive acid produced by bacteria in wastewater. A new additive could allow such concrete to self-heal – and it would do so ...

KAPOLEI, OAHU (HawaiiNewsNow) - Many of the concrete segments on Honolulu's rail transit system are only a few months old but already cracks are beginning to show. The most notable cracks can be ...