The following table shows the results obtained from NormalConsistency of Cement Paste Test done on a sample of OrdinaryPortland Cement.Mass of Cement Percentage of Vicat's NeedleWater AddedTRIAL(grams)400Penetration30%4.5 mm28%26%4006.0 mm400S.0 mm9.5 mm12 mm440024%540022%40020%15 mmUsing the required penetration stated in Lecture Notes 4, determinethe mass of water needed to be added to the cement to achieve thestandard consistency of the cement paste.123 n6

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The following table shows the results obtained from Normal Consistency of Cement Paste Test done on a sample of Ordinary Portland Cement. Mass of Cement Percentage of Vicat's Needle Penetration 4.5 mm TRIAL Water Added (grams) 400 30% 28% 1 2 400 6.0 mm 400 26% S.0 mm 400 9.5 mm 24% 22% 4 5 400 12 mm 400 20% 15 mm Using the required penetration stated in Lecture Notes 4, determine the mass of water needed to be added to the cement to achieve the standard consistency of the cement paste.

The following table shows the results obtained from Normal Consistency of Cement Paste Test done on a sample of Ordinary Portland Cement. Mass of Cement Percentage of Vicat's Needle Penetration 4.5 mm TRIAL Water Added (grams) 400 30% 28% 1 2 400 6.0 mm 400 26% S.0 mm 400 9.5 mm 24% 22% 4 5 400 12 mm 400 20% 15 mm Using the required penetration stated in Lecture Notes 4, determine the mass of water needed to be added to the cement to achieve the standard consistency of the cement paste.

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Author:KASSIMALI, Aslam.

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Chapter2: Loads On Structures

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Problem 1P

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Concept explainers

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.

Question

The following table shows the results obtained from Normal
Consistency of Cement Paste Test done on a sample of Ordinary
Portland Cement.
Mass of Cement Percentage of Vicat's Needle
Water Added
TRIAL
(grams)
400
Penetration
30%
4.5 mm
28%
26%
400
6.0 mm
400
S.0 mm
9.5 mm
12 mm
4
400
24%
5
400
22%
400
20%
15 mm
Using the required penetration stated in Lecture Notes 4, determine
the mass of water needed to be added to the cement to achieve the
standard consistency of the cement paste.
123 n6

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