Daily Quiz (6)


Researchers have found that up to 8% of sand in concrete and mortar for a single-story house could be replaced with shredded, used disposable ___ without diminishing strength.


Researchers from the University of Minho’s School of Engineering conducted a sustainability analysis related to the prevention of the development of ______ in building structures using nanotechnology.


True or false: In a JPCL article describing a study about surface preparation of repair mortars in wastewater treatment plants, the authors concluded that broom finishing was inferior to abrasive blasting in producing surfaces for the successful application of protective coatings.


True or False: A study reported in JPCL indicated that broom finishes on repair mortars for wastewater service, when compared with abrasive blasting, provided better adhesion of linings applied over them.


True or false: There is an ASTM test method for comparing relative performance of concrete repair mortars in their resistance to cracking.


True or false: ASTM has a test method to determine the relative performance of repair mortars in their resistance to cracking.


 
 
   

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