Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6, Problem 6.5QP
Define the C-S-H phase of cement paste.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Use Burdine's (1953) equation from the handout (the statistical capillary tube model equation with the values of b, r, and m assumed by Burdine) to mathematically derive a relationship for the hydraulic conductivity function that is based on the SWRC model of Brooks and Corey (1964).
Question 2
A sluice gate controls flow in open channels. At
sections 1 and 2, the flow is uniform and the
pressure is hydrostatic. Neglecting bottom
friction and atmospheric pressure, calculate the
velocities V1 and V2, and the horizontal force, F,
required to hold the gate if h1 = 6m, h2 = 1m, and
b = 5m.
h₁V₁
Sluice
gate, width b
F
Question 1
A pipeline 30 m long connects two tanks which
have a difference of water level of 12 m. The first
10 m of pipeline from the upper tank is of 40 mm
diameter and the next 20 m is of 60 mm diameter.
At the change of section, a valve is fitted.
Calculate the rate of flow when the valve is fully
opened assuming that its resistance is negligible
and that f for both pipes is 0.0054. In order to
restrict the flow the valve is then partially closed.
If k for the valve is now 5.6, find the percentage
reduction in flow.
Note the following
Reservoir I
Segment of Length
Pipeline
B
Diameter
(m)
(mm)
ABC
AB
10
40
BC
20
60
Head loss due to friction
h₁ = KQ²
Valve
fl
K =
3.028D'
Where,
•h₂
= k
Head loss due to partial closure
(VAB-VBC)
2g
Reservoir 2
H-12 m
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Civil engineering students performed an evaluation of the two primary methods of classification (supervised and unsupervised). The evaluation of the two methods utilized the error matrices. Tables 1 and 2 represent supervised and unsupervised methods respectively. Reference Data Bare Agriculture Buildings Forest land Agriculture 130 8 44 48 Classified Data Buildings 12 162 10 16 Forest 0 22 170 38 Bare land 8 14 6 180 Table 1 Results of supervised classification 252 + Reference Data Bare Agriculture Buildings Forest land Agriculture 60 16 44 48 Classified Data Buildings 13 80 22 16 Forest 2 35 120 38 Bare land 8 14 6 180 Table 2 Results of unsupervised classification Compare the two methods based on the following parameters: a. User accuracy b. Producer accuracy c. Overall accuracy. d. Explain the above parameters (a, b & c) e. Which one of the two methods has higher accuracy? Justify your answerarrow_forwardThe following figure shows the cross-section of an anchored sheet pile wall. The soil properties and some wall dimensions are shown in the figure and spacing between anchor rods is 2.0 m (center to center). Design the wall using Rankine theory; i.e., calculate the depth of embedment of the wall (D), tensile force on each rodarrow_forwardQ2: A circular concrete culvert of diameter 120 cm carries water of depth 75 cm to irrigate a 30-hectare field. What could be the discharge of this canal if the slope was 0.002? Use Manning's n= 0.014. TWOarrow_forward
- A farm of 40 hectares is supplied by open field drains. The spacing of these drains were selected to be 100m and the length of each drain is 600 m. If the drainage coefficient is 4 cm/day, find: 1- Discharge at the end of a field drain. 2- Total discharge passed through the collector drain. 3- The dimension of open drains, if n= 0.03, S= 0.00035 and Z= 1.5arrow_forwardPlease use stiffness matrix method to solve.arrow_forwardPlease answer using the stiffness matrix methodarrow_forward
- F U₁ ΕΙ ΕΙ H F₁₂ U₂ ΕΙ EI H F ΕΙ ΕΙ H Undeformed Configuration 3 Deformed Configurationarrow_forwardCivil engineering quantities question Answer the question and at the end put notes on how a BOQ is constructed.arrow_forwardPlanning is underway for the construction of a new railway section between Stockholm and Uppsala as part of the "Fyra spår Uppsala" project. Your task is to carry out a preliminary slope stability analysis for a planned road underpass beneath the new railway. The analysis concerns the eastern slope at the underpass. The designed clay slope has a depth of 12.5 meters and a width of 27.0 meters. According to geotechnical investigations, the soil consists of homogeneous, overconsolidated clay with a saturated unit weight of 15 kN/m³ and an undrained shear strength of 35 kPa. The groundwater table is at ground level (0.0 m). According to Figure 1, the most critical slip surface is circular, with the center of rotation (point O) located 4.0 meters above the current ground surface (0.0 m). The slip surface intersects the ground at the toe of the slope and 6.0 meters east of the slope crest. Questions to Answer Calculate the factor of safety (F) against rotational failure using an undrained…arrow_forward
- Question 6. Water enters a reach of rectangular channel where y₁ = 0.5 m, b = 7.5 m, and Q = 20 m³/s (Figure P10.39). It is desired that a hydraulic jump occur upstream (location 2) of the sill and on the sill critical conditions exist (loca- tion 3). Other than across the jump, losses can be neglected. Determine the following: (a) Depths at locations 2 and 3 (b) Required height of the sill, h (c) Resultant force acting on the sill (d) Sketch the water surface and energy grade line. (e) Describe the nature and character of the jump. 1 2 3. harrow_forwardQuestion 5. This figure shows a cross section of an aqueduct that carries water at 50 m³/s. The value of Manning's n is 0.02. Find the bottom slope. 45° 4.0 m 7.0 m-arrow_forwardQuestion 4. A rectangular, unfinished concrete channel of 30-ft width is laid on a slope of 7 ft/mi. Determine the flow depth and Froude number of the flow if the flowrate is 350 ft³/s.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Traffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage Learning
Construction Materials, Methods and Techniques (M...Civil EngineeringISBN:9781305086272Author:William P. Spence, Eva KultermannPublisher:Cengage Learning
Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning
Fundamentals Of Construction EstimatingCivil EngineeringISBN:9781337399395Author:Pratt, David J.Publisher:Cengage,
Solid Waste EngineeringCivil EngineeringISBN:9781305635203Author:Worrell, William A.Publisher:Cengage Learning,
Fundamentals of Geotechnical Engineering (MindTap...Civil EngineeringISBN:9781305635180Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning
Construction Materials, Methods and Techniques (M...
Civil Engineering
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:Cengage Learning
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning
Fundamentals Of Construction Estimating
Civil Engineering
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Cengage,
Solid Waste Engineering
Civil Engineering
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Cengage Learning,
Fundamentals of Geotechnical Engineering (MindTap...
Civil Engineering
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Types of Cement; Author: Tyler Ley;https://www.youtube.com/watch?v=cApoqFALh8s;License: Standard Youtube License