Legions of catatonic organisms lie asleep in the matrix, waiting only for momentary exposure to water and oxygen in order to awaken — whereupon the organisms immediately germinate, grow and fulfill their destiny, sealing the cracks in the fabric of their universe before falling dormant once again.
Continue reading “It’s Alive! Self-Healing Concrete, Materials Science and Other Evolutionary Developments”
Situated on the northwest coast of Oregon, the resort town of Seaside — population 6,685 — seems an unlikely place for advanced seismic and tsunami simulations. But just offshore Seaside’s charming 1920s boardwalk and its broad, sandy beaches famed for razor clamming, the Juan de Fuca tectonic plate is slowly sliding underneath the behemoth North American plate.
Continue reading “Little Locales Using Big Data to Prevent Bridge Failures”
Just as knowing the load capacities of your metal hardware is crucial to the longevity and structural integrity of your building project, so is understanding the potential for corrosion. The likelihood of rust and rot increases when building outdoors in wet environments and other corrosive conditions. Having a solid awareness of the corrosive threats posed by the environment and your building materials will help you to choose the fasteners, connectors and anchors that will best mitigate corrosion risk and keep your project structurally sound for the long haul.
Start by evaluating the exposure levels in your environment. Is it an interior dry- or exterior wet-service job, for example? Generally, outdoor environments are more corrosive to steel because of the elevated moisture levels relative to interior spaces. Projects near the ocean or waterfront are at increased risk for corrosion due to airborne chlorides and salt splash prevalent in marine locales. Salt is also a danger if building materials will be exposed to de-icing salts.
Continue reading “Keep Corrosion in Check”