We need to solve them all Q1 /Choose the correct answer (fifteen only)1-Cement that not only hardens by reacting with water but also form a water resistantproduct is.. ..a-Non-hydraulic Cement b- hydraulic Cement c-all of them d- not all of them2- In the semi-dry process, water weighing about...a- 40 %c- 0.2%b- 12%3- The impure forms of C3S isb- belite.d- not all of thema- alitec- all of themd- not all of them4- Flash set with liberation of a large amount is due to high amount of .a- gypsumc- C3Sb-C3Ad- C2s5- The initial setting of cement marks the point in time when the paste has become.a- workable6-. . is the name given to the abnormal stiffening of cement within a few minutes ofmixing with water.a- flash set7 . are really interconnected spaces between the gel particles and occupy about28% of the total volume of gela- gel pores8- Interlayer water is lost at lowa- 30 %9-Materials used in the manufacture of Portland cement must contain amounts of. .a) Calciumb- hardenC- unworkabled- not of allb- False setc- quick setd- normal setc- air voids.relative humidityb- capillary poresd- inter layer spaceb-15%c-11%d-23%b) silicac) aluminad) iron componentse) all of them.10-..a) Chemically combined water b) gel pores waterEvaporation does not cause any volume change.c) free waterd) adsorbed water11-The capillary porosity of the paste depends. ..a) Cement typeb) water/cement ratioc) The total heat of hydration. d- Aggregates12- .a- sulfate compounds13- At any stage of hydration, the .represent that part of the gross volume whichhas not been filled by the products of hydration.a- capillary pores... can cause unsoundness of cement.b- Alkalisd- Cao and MgOc- Caob-gel poresc- air voids d- not all of them14- Rapid-hardening Portland cement is due to ...a- C3S content higher than 55%all them.b- specific surface 450 to 600 m?/kg c- all of them d- not of15- Low heat Portland cement is typeа- Туре !...as Astm C150b- Type IVc- (Type III)d-(Тype V)

1. Option B - Hydraulic CementHydraulic cement is a cement which when reacts with water, hardens…

1-Cement that not only hardens by reacting with water but also form a water resistant product is.... a-Non-hydraulic Cement b- hydraulic Cement c-all of them d- not all of them 2- In the semi-dry process, water weighing about... a- 40 % 3- The impure forms of C3S is ... b- 12% c- 0.2% d- not all of them a- alite b- belite. C- all of them d- not all of them

1-Cement that not only hardens by reacting with water but also form a water resistant product is.... a-Non-hydraulic Cement b- hydraulic Cement c-all of them d- not all of them 2- In the semi-dry process, water weighing about... a- 40 % 3- The impure forms of C3S is ... b- 12% c- 0.2% d- not all of them a- alite b- belite. C- all of them d- not all of them

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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