Cementitious materials Study guides, Class notes & Summaries

Accelerators admixtures that increase the masonry cement's rate of hydration Admixtures additives that Increase workability, strength, and weather resistance. Also add color. Air-entraining agents additives increasing the air content in cement Autogeneous healing a unique characteristics of lime-based mortars that have the capability by chemical reaction to fill small voids that may occur in the joints Bond strength a measure of the resistance to separation of m...

Asbestos Test Updated 2023 with complete solution Acoustical Insulation The general application or use of asbestos for the control of sound due to its lack of reverberant surfaces Acoustical Tile A finishing material in a building usually found in the ceiling or walls for the purpose of noise control Actinolite One of the six naturally occurring asbestos minerals. It is not normally used commercially. addenda (n) Changes made to working drawings and specifications for a building before...

Asbestos Test Updated 2023 with complete solution Acoustical Insulation The general application or use of asbestos for the control of sound due to its lack of reverberant surfaces Acoustical Tile A finishing material in a building usually found in the ceiling or walls for the purpose of noise control Actinolite One of the six naturally occurring asbestos minerals. It is not normally used commercially. addenda (n) Changes made to working drawings and specifications for a building before...

Which standards/codes are included in AWCI Manual 12A? - ANSWER-ASTM E119, UL 263, ULC S101-M What are Sprayed Fire Resistive Materials according to UL? - ANSWER-UL no longer recognizes the terms cementitious or sprayed fiber to differentiate between sprayed fireproofing products. They are combined now and are called SFRM. Should the manufacturer's instructions be followed and (if so) what are typical specifications that are provided? - ANSWER-Yes - Substrate temperatures, surface conditi...

NICET III – Fire Stopping Study Review Practice Test. What is firestopping? - CORRECT ANSWER A process whereby certain materials, some of them specially manufactured, are used to resit (or stop) the spread of fire and its byproducts through openings made to accommodate penetrations in fire-rated walls, floors, and floor/ceiling assemblies. ....International Firestop Council Balanced approach to Fire Protection - CORRECT ANSWER Detection - Containment - Suppression Compartmentation (...

admixture a chemical or mineral other than water, cement, or aggregate added to mortar immediately before or during mixing to change its setting time or curing time;to reduce water;or to change the overall properties of the mortar. aggregate Materials such as crushed stone or gravel used as a filler in concrete and concrete block. Ashlar A squared or rectangular cut stone masonry unit; or, a flat faced surface having sawed or dressed bed and joint surfaces. Concrete mason...

Brick dimensions that include the thickness of the mortar joint are_________________. nominal sizes 3 MULTIPLE CHOICE OPTIONS The plan of action of what activities and projects a SkillsUSA chapter will undertake during a school year is called the_____________________. program of work 3 MULTIPLE CHOICE OPTIONS Most masonry work is done_______________. outside 3 MULTIPLE CHOICE OPTIONS In it's history, SkillsUSA has served more than__________________. 10.5 million memb...

Vulcanization is a physicochemical (physical and chemical) change resulting from the cross linking of the unsaturated hydrocarbon chain of natural rubber (polyisoprene) with sulfur, and the application of heat. Three factors that affect the properties of the vulcanizate (vulcanized product) - answerPercentage of sulphur and accelerator used Temperature of the curing process Time of cure Methods used to cure (vulcanize) rubber are - answerAutoclave (vulcanizer) cure Internal steam cure A...

NACE CIP 2 EXAM Questions With Questions and Verified Answers Latest Updated 2023/2024 Graded A+ Describe passivation Passivation is the formation of a protective oxide Film on the surface reducing its chemical activity and its ability to corrode Describe the following factors and how they affect corrosion Oxygen: oxygen increases the rate of corrosion temperature Temperature: corrosion usually accelerated with increasing temperature Chemical salts: increase the rate of corrosion by incr...

Dead Load - correct answer the weight of the structure itself - stays the same Live Load - correct answer The weight of movable objects such as people, furnishings, machines, vehicles, and goods in or on a building. uniform settlement - correct answer Settling occurs at roughly the same rate throughout all parts of a building differential settlemen...