Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN: 9781305086272
Author: William P. Spence, Eva Kultermann
Publisher: Cengage Learning
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Chapter 10, Problem 1RQ
To determine
The basic materials used to produce mortar.
Expert Solution & Answer
Answer to Problem 1RQ
The basic materials required to produce mortar are cementitious materials, sand, hydrated lime, water and admixtures.
Explanation of Solution
Mortar is used to bind the masonry units into an integral structure. Mortars were initially made of mud and sand available on the site but later developments in mortar utilized a combination of lime and sand for the strength development. Mortar is composed of cementitious materials, clean graded mortar sand, clean water and admixtures. The composition of mortar varies according to the use. It may consist of Portland cement or masonry cement, sand, hydrated lime and water for any general masonry applications whereas for special applications addition of admixtures is required so that compressive and tensile strength can be increased.
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Students have asked these similar questions
Please explain step by step and show formulas
5. (20 Points) Consider a channel width change in
the same 7-foot wide rectangular in Problem 4.
The horizontal channel narrows as depicted
below. The flow rate is 90 cfs, and the energy
loss (headloss) through the transition is 0.05
feet. The water depth at the entrance to the
transition is initially 4'.
1
b₁
TOTAL ENERGY LINE
V² 129
У1
I b₂
TOP VIEW
2
PROFILE VIEW
h₁ = 0.05
EGL
Y₂ = ?
a)
b)
c)
2
Determine the width, b₂ that will cause a
choke at location 2.
Determine the water depth at the
downstream end of the channel transition (y₂)
section if b₂ = 5 feet. Calculate the change in
water level after the transition.
Plot the specific energy diagram showing
all key points. Provide printout in homework.
d) What will occur if b₂ =
= 1.5 ft.?
4. (20 Points) A transition section has been
proposed to raise the bed level a height Dz in a
7-foot wide rectangular channel. The design
flow rate in the channel is 90 cfs, and the
energy loss (headloss) through the transition is
0.05 feet. The water depth at the entrance to
the transition section is initially 4 feet.
b₁ = b = b2
1
TOTAL ENERGY LINE
V² 129
Ут
TOP VIEW
2
hloss = 0.05
"
EGL
Y₂ = ?
PROFILE VIEW
a) Determine the minimum bed level rise, Dz,
which will choke the flow.
b) If the step height, Dz = 1 ft, determine the
water depth (y2) at the downstream end of the
channel transition section. Calculate the
amount the water level drops or rises over the
step.
c) Plot the specific energy diagram showing all
key points. Provide printout in Bework.
d) What will occur if Dz = 3.0 ft.?.
Crest
Front View
Chapter 10 Solutions
Construction Materials, Methods and Techniques (MindTap Course List)
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