Designed by Lorado Taft, the Indian stands on a high bluff in Lowden State Park as a tribute to Native Americans. The 50 ft figure, dedicated in 1911, is composed of structural concrete with an architectural concrete exterior. The concrete...
This seventeen-story structure is one of several architecturally significant, mid-century modernist concrete buildings designed by Josep Lluís Sert for Boston University’s campus. The tower's concrete facade deteriorated over time,...
One California, designed by Wellton Becket Associates, is a mid-century modern high rise featuring vertical runs of windows between columns clad with precast concrete panels. SGH performed a condition assessment of the precast panels and found...
The 1.1 million sq ft Northwestern Mutual Tower in downtown Milwaukee is a 550 ft, 32-story skyscraper constructed by the joint venture team of Gilbane Building Company and CG Schmidt (CGS). The building is founded on a 3 ft to 10 ft thick...
During the six-year rehabilitation of the Brightman Street Bridge, SGH provided investigation and concrete design services and performed testing, analysis, and thermal modeling of mass concrete placements.
Envisioned and developed by Matter Design for the third Design Biennial Boston, Helix is a half-scale, unreinforced, custom-fabricated, concrete spiral staircase. SGH collaborated with Matter Design on material analysis, structural design...
The Massachusetts Water Resources Authority (MWRA) owns and operates five facilities that treat Combined Sewer Overflows (CSOs)during storm events before it reaches Boston Harbor and its tributary rivers. As part of the Boston Harbor...
The Terminal E Ticketing Concourse is an open space approximately 75 ft wide and 625 ft long. The floor structure is a lightweight slab on composite metal decking and includes a concrete overlay with an epoxy terrazzo floor surface. ...
The Idaho Cleanup Project involved installation of an Integrated Waste Treatment Unit (IWTU) that implemented a prototype technology. The IWTU processes radioactive acidic sodium-bearing waste and converts it into a solid carbonate product. As...
The Hoosac Wind Project is located in the mountains of Western Massachusetts. The project includes nineteen 1.5 MW wind turbines consisting of a steel tower supported by 45 ft dia. reinforced-concrete mat foundations. During construction, the...
Despite potential benefits including enhanced mechanical properties, reduced permeability, and decreased environmental impact, higher rates of metakaolin substitution for cement ([10% MK by mass of cement) have been limited practically because of...
Amy L. Hackney and James A. McDonald published an article in the March 2015 issue of Concrete Construction. The article is titled, “Keep Architectural Concrete Looking Great,” and discusses special considerations that must...
By: Robert Holland, In, Chi-Won, Kim, Jin-Yeon, Kurtis, Kimberly E., Kahn, Lawrence F., Jacobs, Laurence J.
Abstract: The progression of self-healing of cracked concrete is monitored in situ by diffuse ultrasound, in a novel application of this technique. The diffuse ultrasonic measurements are conducted on uncracked, tensile through-thickness cracked...
Many construction contractors prefer to place below-grade property-line walls using shotcrete to save costs associated with formwork installation. However, below-grade shotcrete walls at property-line conditions have frequently been susceptible...
Abstract: Drying shrinkage is a trait of concrete that, if poorly controlled or managed, can lead to serviceability problems, reduced durability, and even system failures. Cracks from restraint of shrinkage can reduce the performance life of...