what does it imply if my final setting time for hydraulic cement by vicat needle is 140 minutes and my final setting time is 250 minutes? then what is the essenc of determining the setting time for hydraulic cement in construction?

what does it imply if my final setting time for hydraulic cement by vicat needle is 140 minutes and my final setting time is 250 minutes? then what is the essenc of determining the setting time for hydraulic cement in construction?

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 4RQ

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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.

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