Materials for Civil and Construction Engineers (2nd Edition)
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ISBN: 9781292154411
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Chapter 6, Problem 6.27QP
To determine
The admixture that would be used by the material engineer during cold climate.
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Chapter 6 Solutions
Materials for Civil and Construction Engineers (2nd 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 will happen and what is the effect when the fine modulus of fine and coarse aggregate does not meet the standards? Explainarrow_forwardHow are you going to choose construction materials based on the specific gravity and absorption of fine aggregates?arrow_forwardWhat types of tests are performed for the quality assurance of the materials?arrow_forward
- Given: wo=4280g, w1=4250g, w2=2750g. what is the specific gravity of the given coarse aggregate?arrow_forwardwhat is the effect of bulk specific gravity, bulk specific gravity (SSD), apparent specific gravity, and percent absorption to concrete mix? what is the range of these four to fine aggregates and coarse aggregate. If the result of these four is low or high, what is your recommendation?arrow_forwardwhy unit weights of aggregates will allow the contractors to meet their construction requirements? what is the requirements needed? for a coarse aggregate that is 20 mm, what would be the best percentage void and best rodded bulk density to meet the requirements? if not, what would be the possible result. Same goes with fine aggregate what is the best percentage void and best rodded bulk density to meet the requirements?arrow_forward
- How to place the aggregate sample in the sieves before sieving and how to weigh aggregate retained in sieves ?arrow_forwardif my Fineness modulus for fine aggregates is 1.88, does it meet the standards fineness modulus for dine aggregates? And if my Fineness modulus for coarse aggregate is 2.61, does it also meet the standards? Explainarrow_forward
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