Ancient Roman seawalls that have been exposed to the elements for over 2,000 years are finally beginning to reveal the secret of their longevity to researchers trying to figure out what makes them so durable. Lasting for 2,000 years in impressive enough, but even more impressive is the fact that the concrete barriers have actually strengthened over that time period.
According to Time, new research published in American Mineralogist discovered it is a mixture of volcanic ash, lime, seawater, and a mineral called aluminum tobermorite that gives the concrete its durability.
This mixture can reinforce the wall and prevent cracks from expanding. The reaction was caused by seawater continually pounding the structures for centuries, which allowed the mineral mixture of silica oxides and lime to grow between the volcanic rock aggregate and mortar to develop resistance, Time reports. This Roman concrete thrives in open chemical exchange with seawater, which is very rare on Earth.
The information gleaned from this research could prove vital in developing a more environmentally friendly, longer-lasting concrete that could be used in projects today’s concrete would be deemed unsuitable for such as sea barriers or coastal structures.
Related Stories
| Apr 23, 2012
Innovative engineering behind BIG’s Vancouver Tower
Buro Happold’s structural design supports the top-heavy, complex building in a high seismic zone; engineers are using BIM technology to design a concrete structure with post-tensioned walls.
| Apr 20, 2012
McCarthy completes Santa Barbara Cottage Hospital Replacement Facility
The new hospital’s architectural design combines traditional Santa Barbara Spanish colonial architecture with 21st century medical conveniences highlighted by a therapeutic and sustainable atmosphere.
| Apr 20, 2012
Shawmut completes Yard House Restaurant in Boston
12,000-sf restaurant marks new addition to Boston’s Fenway neighborhood.
| Apr 19, 2012
Holcim cement plants recognized at PCA Spring Meeting
The Holly Hill plant received the PCA’s Chairman’s Safety Performance Award in recognition of their exceptional health and safety programs. The Theodore plant received the Environmental Performance Award in recognition of the steps they take beyond those required by laws, regulations and permits to minimize their impact on the environment.
| Apr 18, 2012
Lafarge moving North American headquarters to Illinois
Lafarge CEO John Stull says the factors in their decision were location in the Midwest and area transportation.
| Apr 18, 2012
Positive conditions persist for Architecture Billings Index
The AIA reported the March ABI score was 50.4, following a mark of 51.0 in February; greatest demand is for commercial building projects.
| Apr 16, 2012
Drake joins EYP as science and technology project executive
Drake’s more than 30 years of diversified design and project delivery experience spans a broad range of complex building types.
| Apr 13, 2012
Goettsch Partners designs new music building for Northwestern
The showcase facility is the recital hall, an intimate, two-level space with undulating walls of wood that provide optimal acoustics and lead to the stage, as well as a 50-foot-high wall of cable-supported, double-skin glass
| Apr 10, 2012
Structured Development & Bucksbaum close on new retail site in Chicago
The site is the location of New City, a mixed-use development that will feature 370,000-sf of retail space and 280 residential rental units.
| Apr 4, 2012
Educational facilities see long-term benefits of fiber cement cladding
Illumination panels made for a trouble-free, quick installation at a cost-effective price.
