Category: Structural steel

Daily Quiz (17)

Pieces of steel from a Minnesota ___ have been removed from storage to be placed in what will be the University of St. Thomas’ new engineering building.

True or False: Projects funded by the bipartisan infrastructure law are allowed to use iron and steel materials manufactured anywhere in the world.

True or False: The United States and the United Kingdom recently reached a deal to partially lift tariffs on steel and aluminum exports from the U.K.

According to a recent Maintenance Tips article in JPCL, what is the temperature at which structural steel will lose half of its load-bearing strength in the event of a fire?

What is one result of the removal of an oxide layer from steel?

By what process is steel covered with an impervious oxide to inhibit chemical or electrochemical reactions on the surface?

True or false: For exposed structural steel on a stadium located in a cold, damp environment, moisture-cured polyurethane was recommended in a Problem Solving Forum.

True or false: Exposed structural steel in San Diego and Los Angeles airport construction projects completed in 2013 was coated with zinc-rich/epoxy/fluoropolymer coating systems.

True or false: A D+D blogger points out that a building’s structural steel will begin to lose strength in a fire when it is heated to just over 570 degrees Fahrenheit.

True or false: Two-coat polyaspartic urethane coating systems are sometimes recommended for protection of steel bridges.

True or false: The Federal Highway Administration creates and maintains a database reporting the results of performance testing of coatings for bridges.

Cementitious, fire-resistive coatings for unexposed structural steel in buildings often contain which of these materials?

What is the typical pressure range for waterjetting when it is used to remove coatings and corrosion from structural steel?

Which of the following is a recognized method for removing soluble salts from a steel substrate to test concentration levels?

According to the General Accounting Office, what percentage of U.S. bridges are deficient?

What is the function of fireproofing materials such as intumescent or cementitious coatings on structural steel in buildings?

True or false: To achieve good esthetics and fire resistance on exposed structural steel in building interiors, cementitious spray-applied fire resistant materials should be used.

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