The Construction Specifier Express

May 17, 2022

Firm honored for seven decades of sustainable design innovation

Architect, specifications advocate, Michael Chusid passes away at 69

Michael Chusid, FCSI, a registered architect, certified construction specifier, and marketing and business development consultant, passed away on May 2 at 69.

An illusion

SPONSORED

Explore your commercial roofing and flooring options with CentiMark Corporation! Experienced crews, unparalleled workmanship, and safety standards that exceed industry averages is what you will receive when working with CentiMark for your roofing and flooring needs.

Shawmut’s Safety Week aimed at mental wellness alongside physical safety

Shawmut Design and Construction hosted its 13^th annual Safety Week, focusing on not just physical health and safety, but also mental health and wellness.

Features

Metal corrosion is an ever-present problem in the plumbing industry. Common piping materials such as copper, steel, and cast-iron are readily oxidized and thus undergo aqueous corrosion at a rate dependent on the corrosivity of the service environment.

Absorption and diffusion: Creating optimal acoustic spaces

Acoustic issues as to the richness and functionality of sound in a space manifest themselves in many ways, and from many different causes.

DISCUSSIONS OF THE WEEK

PRESERVING HISTORIC CONCRETE BALUSTRADE RAILS

I’m working on a unique project in which 100-year-old historic concrete balustrade rails are in need of repairs and refurbishment. Their surfaces are showing signs of wear and weathering, and I would like to clean the components, make repairs as necessary, and help protect them with some type of permeable coating. A petrographic evaluation has found the majority of the balusters and rails contain no course aggregate, and the binder is straight cement. There is a good amount of carbonation. The baluster grout had a relatively high water to cement (w/c) ration when cast, but 100 years of curing has resulted in a moderate hard paste. The sand has a slightly courser gradation than normally expected and consists almost entirely of quartz, with lesser amounts of quartzite, feldspars, and hematite/goethite. Any thoughts on what type of product(s) to use would be greatly appreciated.

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BALLISTICS RESISTANT GLAZING

I’m helping a colleague with a ballistic glazing application. We’re very early in the process right now. Are there any members who are Certified Construction Product Representatives (CCPRs) with this type of application, familiar with these types of applications, or could recommend an avenue to reach out for product or application information?

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