Answered: Compute for the Initial setting time of…

Compute for the Initial setting time of the cement given the following result: TIME (minutes) PENETRATION 15 46 30 41 45 35 60 32 75 28 90 23 a 83 mins b 85 mins c 84 mins d 87 mins

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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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

Compute for the Initial setting time of the cement given the following result:

TIME (minutes)	PENETRATION
15	46
30	41
45	35
60	32
75	28
90	23

a 83 mins

b 85 mins

c 84 mins

d 87 mins

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