Pearson eText for Materials for Civil and Construction Engineers -- Instant Access (Pearson+)
4th Edition
ISBN: 9780137505586
Author: Michael Mamlouk, John Zaniewski
Publisher: PEARSON+
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Chapter 6, Problem 6.18QP
Two batches of cement mortar with properties as shown in Table P6.18. If mortar cubes are made from these batches, which batch do you expect to have larger compressive strength? Why?
TABLE P6.18
| Batch Number | Water-Cement Ratio | Superplasticizer Content |
| 1 | 0.5 | 0 |
| 2 | 0.5 | 1 fl oz/yd3 |
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Homework:
Determine the proportions of the separate aggregates that will give a gradation within the SCRB
wearing coarse specified limits for the aggregates and mix composition for highway pavement
asphaltic concrete. The table below shows the results of sieve analysis of samples from the
materials available.
برو
Percent by Weight
Passing Sieve
Designation
Retained
on Sieve
Designation
Coarse
Aggregate
Fine
Aggregate
Mineral
Filler
3/4 in. (19 mm)
1/2 in.
5
½ in. (12.5 mm)
3/8 in.
35
¾ in. (9.5 mm)
No. 4
38
No. 4 (4.75 mm)
No. 10
17
No. 10 (2 mm)
No. 40
5
No. 40 (0.425 mm)
No. 80
No. 80 (0.180 mm)
No. 200
No. 200 (0.075 mm)
Total
18
1118
30
35
5
26
35
60
100
100
100
For the driven pile shown in figure, estimate the
allowable capacity by:
(a) Tomlinson a-method,
(b)Vijayvergia and Focht A-method.
Which one of the two methods are more conservative?
Qall =?
W.T
18.21 kN/m²
930
L=18m
Square pile
27.5cm x 27.5cm
What is the vertical deflection at joint C of the truss shown?
75 kN
9 m
7 (3000 mm²) (3000 mm²)
(2000
mm²)
(3000 mm²)
(2000 mm²)
100 kN
(3000 mm²)
H
(3000 mm²)
(2000 mm²)
(2000
mm²)
(3000 mm²)B(3000 mm²) C(3000 mm²)D(3000 mm2)5
a. 9.3 mm↓
b. 9.6 mm↓
c. 8.0 mm ↓
d. 9.1 mm↓
4 at 6 m = 24 m
E = 200 GPa
E
Chapter 6 Solutions
Pearson eText for Materials for Civil and Construction Engineers -- Instant Access (Pearson+)
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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