Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 6.4QP
What are the primary chemical reactions during the hydration of Portland cement?
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This refers to a change from liquid state to solid state of cement paste.
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why do we need to know the Specific Gravity and Absorption of Fine Aggregate, Surface Moisture of Fine Aggregate, and how it is important in concrete
Chapter 6 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 6 - What ingredients are used for the production of...Ch. 6 - What is the role of gypsum in the production of...Ch. 6 - What is a typical value for the fineness of...Ch. 6 - What are the primary chemical reactions during the...Ch. 6 - Define the C-S-H phase of cement paste.Ch. 6 - What are the four main chemical compounds in...Ch. 6 - Prob. 6.7QPCh. 6 - Define a. interlayer hydration space b. capillary...Ch. 6 - Prob. 6.9QPCh. 6 - The following laboratory tests are performed: a....
Ch. 6 - What is a false set of portland cement? State one...Ch. 6 - The watercement ratio is important because it...Ch. 6 - Discuss the effect of watercement ratio on the...Ch. 6 - Draw a graph to show the general relationship...Ch. 6 - Students in the materials class prepared three...Ch. 6 - Students in the materials class prepared three...Ch. 6 - Two batches of cement mortar with properties as...Ch. 6 - What are the five primary types and functions of...Ch. 6 - Why isnt pozzolan used with Type III cement?Ch. 6 - What type of cement would you use in each of the...Ch. 6 - In order to evaluate the suitability of nonpotable...Ch. 6 - Three standard mortar cubes were made using...Ch. 6 - Four standard mortar cubes were made using...Ch. 6 - Discuss the problem of disposal of waste water...Ch. 6 - State five types of admixtures and discuss their...Ch. 6 - Prob. 6.27QPCh. 6 - Under what condition is an air-entraining agent...Ch. 6 - If a water reducer is added to the concrete mix...Ch. 6 - Prob. 6.30QPCh. 6 - A concrete mix includes the following ingredients...Ch. 6 - The results of an experiment to evaluate the...Ch. 6 - The results of a laboratory experiment to evaluate...Ch. 6 - Referring to Table P6.34, Mix No. 1 was designed...Ch. 6 - Two batches of concrete cylinders were made with...Ch. 6 - Two batches of concrete cylinders were made with...Ch. 6 - What is the source of fly ash? Why is fly ash...Ch. 6 - A materials engineer is working in a research...Ch. 6 - A materials engineer is working in a research...
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- What is the range of fineness of cement according to ASTM standardarrow_forward5.6 Define the following terms: a. Saturated surface-dry condition of aggregates b. Absorption of aggregates c. Free water on aggregates d. Referring to Figure 5.9, which portion of the water in the aggregate reacts with the cement in the PCC mix?arrow_forwarda minor component that primarily contributes to total alkali content in portland cement is?arrow_forward
- Using cement chemistry notation what is the hydrated cement phase MAINLY responsible for strength and durability in concrete.arrow_forwardWhat is the comparison of two main process which is dry and wet process in manufacturing Portland Cementarrow_forwardWhat does the Specific Gravity of Fine Aggregate, Absorption of Fine Aggregate, and Surface Moisture of Fine Aggregate matter to engineering? and how it is essential in concrete.arrow_forward
- How does shape and surface texture of aggregate effect workability, water requirement, and bond in Portland cement concrete. Why are rounded aggregates not ideal for asphalt cement concrete?arrow_forwardWhat will be the result if the fineness of cement is 14%arrow_forwardExplain the unit process of hydration and hydrolysis pertaining to cementindustryarrow_forward
- please quickly thanks !arrow_forwardIn the manufacture of Portland cement, gypsum is added to the clinker and they are pulverised together to form the final cement product.a) What is the purpose of the gypsum? How does lack of gypsum affect theproperties of the mortar or concrete?b) What do you think will happen if we add the gypsum in the calcination orburning process instead of adding it into the clinker?c) The gypsum added is a small amount relative to the clinker. What willhappen if a large amount of gypsum is added? Explain.arrow_forwardI need the answer as soon as possiblearrow_forward
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Types of Cement; Author: Tyler Ley;https://www.youtube.com/watch?v=cApoqFALh8s;License: Standard Youtube License