The most effective and practical supply of moisture (curing) on a reinforced concrete columnisA) SprayingC) PondingB) Moist burlap warpingE) A+CD)Curing membranesF) A+BG) NoneBleeding mostly be increased when;A) Increasing temperature B) increasing calcium chloridecontentD) Addition of Pozzolan and Aluminum powderF) NoneStrength development of concrete depends on:A) Bond between aggregate and pasteD) paste cementing valueC) increasing waterE) A+CB) strength of aggregateE) All of the aboveC) A+BF) None

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The most effective and practical supply of moisture (curing) on a reinforced concrete column A) Spraying B) Moist burlap warping E) A+C C) Ponding F) A+B D)Curing membranes G) None Bleeding mostly be increased when: A) increasing temperature B) increasing calcium chloride C) increasing water content D) Addition of Pozzolan and Aluminum powder E) A+C F) None Strength development of concrete depends on: A) Bond between aggregate and paste B) strength of aggregate D) paste cementing value E) All of the above is C) A+B F) None

The most effective and practical supply of moisture (curing) on a reinforced concrete column A) Spraying B) Moist burlap warping E) A+C C) Ponding F) A+B D)Curing membranes G) None Bleeding mostly be increased when: A) increasing temperature B) increasing calcium chloride C) increasing water content D) Addition of Pozzolan and Aluminum powder E) A+C F) None Strength development of concrete depends on: A) Bond between aggregate and paste B) strength of aggregate D) paste cementing value E) All of the above is C) A+B F) None

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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Group B: Design a concrete mix to implement a concrete wall with design compressive strength 45 MPa, a standard deviation equals to 6 and the percentage expected less than minimum strength is 10%. Sulphate Resisting Portland Cement is used. The maximum size of an angular aggregate is 40 mm with apparent density 1600 kg/m3. The available fine aggregate has fineness modulus 2.4 non air entraining agent has been used in the mix.
Group B: Design a concrete mix to implement a concrete wall (exposed to sever conditions moisture and sea water or sulphates) with design compressive strength 40 MPa, a standard deviation equals to 4 and the percentage expected less than minimum strength is 5%. Sulphate Resisting Portland Cement is used. The maximum size of an angular aggregate is 40 mm with apparent density 1500 kg/m3. The available fine aggregate has fineness modulus 2.4 an air entraining agent has been used in the mix.
Group C: Design a concrete mix to implement a Mass concrete (exposed to sever conditions moisture and freezing and thawing) with design compressive strength 25 MPa, a standard deviation equals to 4 and the percentage expected less than minimum strength is 10%. Sulphate Resisting Portland Cement is used. The maximum size of an angular aggregate is 50 mm with apparent density 1500 kg/m3. The available fine aggregate has fineness modulus 2.4 an air entraining agent has been used in the mix.
choose the correct answer Q1A- the process of hardening the concrete mixes by keeping its surface moist for a certain period is called * 1-floating 2-curing 3-screeding 4-Non of the above B- The modulus of rupture of concrete is a measure of * 1-Flexural strength 2-Splitting tension test 3-Direct tension test 4-Compressive strength C- Dry intervals in surface wetting leads to __________ * 1-Cracking 2-Fogging 3-High strength 4-Good workability
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concrete
This is the type of Portland cement that is used when there is a need to produce the concrete strength within 2 to 3 days.
concrete
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