what are raw materials and types of cement in industry of cement?
in 800 words or more (please no less), i don't want an intro about cement.
In: Civil Engineering
The angular acceleration of a shaft is given by α = -0.20ω rad/s2 , where ω represents the angular velocity of the shaft. If at t = 0 the angular velocity ω of the shaft is 18 rad/s, determine (a) the number of revolutions the shaft will execute before coming to rest, (b) the time required for the shaft to come to rest, (c) the time required for the angular velocity of the shaft to be reduced to 1 rad/s
In: Civil Engineering
PLEASE ANSWER ASAP !!!!!!!! VERY URGENT !!!!!!! THANK U !!!!!!!!!!
Question:
Imagine the fire department had to evacuate the 25th floor of an office building. For firefighters to safely reach people at this height, how long would the truck’s ladder have to be and how much would it weigh? Based on this, do you think Pierce should manufacturer this apparatus? Explain.
In: Civil Engineering
Ex if std no: 1abcde, 161667 (a=6, b=1, c=6, d=6,
e=7)
In my case std 174702
Q1) Design a concrete mixture proportions which will be used for
offshore concrete platform. Norway is a world leader on offshore
concrete platforms with 1a of the world’s 30 larger offshore
concrete structures located on the Norwegian continental shelf. The
first of these platforms where the Ekofisk Tank installed in 1974
and the last was Troll gravity based structure installed in 1996.
The Sakhalin project is located in a harsh and artic environment
where concrete structures have proven excellent characteristics
with a minimum of maintenance. 80 mm slump value is required for
the Sakhalin project. 28-days concrete characteristic strength is
2b MPa. It is required that no more than 1 test result in 100 will
fall below the specified strength. The fine aggregate has a
fineness modulus of 2.60 and Zone 3. For Coarse Aggregate
(Uncrushed): SSD Bulk Specific Gravity: 2.65, Absorption Capacity:
2.b %, Total Moisture: 1.c % and Dry Rodded Unit Weight: 1345
kg/m3. For Fine Aggregate (Uncrushed): SSD Bulk Specific Gravity:
2.70, Total Moisture: 3.d % and Free Moisture: 2 %. Cement:
Portland Composite Cement, Specific Gravity: 2.97. For 0.e5 m3 of
concrete, binder amount is calculated as 120 kg (Use ACI Method of
Mix Design)
Q2) What would be the maximum aggregate size used for the given
mixture properties by using ACI Method of Mix Design. 28-day
specified concrete strength is 3b Mpa, standard deviation is
choosen as 3.a Mpa and it is required that no more than 1 test
result in 200 will fall below the specified strength.
Project Title: Detoration of wood column of a commercial
building
Project summary: Wood deterioration at the lower level of a heavy
timber column, which supports five floor levels, was remedied by
removing a section of column and the construction of a new concrete
pier and footing.
For Coarse Aggregate (Uncrushed): SSD Bulk Specific Gravity: 2.60,
Absorption Capacity: 1.8 %, Total Moisture: 2.3 % and Dry Rodded
Unit Weight: 1430 kg/m3.
For Fine Aggregate (Crushed): SSD Bulk Specific Gravity: 2.70,
Total Moisture: 3.c % and Free Moisture: 1.d %. FM= 2.65, Zone
II.
Cement: Portland Composite Cement, Specific Gravity: 3.01. For 0.2a
m3 cement is calculated as 12b kg.
Q3) use the data in question 2 and determine the amount of chemical
admixture required for 0.b% and 0.cd%
In: Civil Engineering
Ex if std no: 1abcde, 161667 (a=6, b=1, c=6, d=6,
e=7)
In my case std 174702
Q1) Design a concrete mixture proportions which will be used for
offshore concrete platform. Norway is a world leader on offshore
concrete platforms with 1a of the world’s 30 larger offshore
concrete structures
located on the Norwegian continental shelf. The first of these
platforms where the Ekofisk Tank installed in 1974 and the last was
Troll gravity based structure installed in 1996. The Sakhalin
project is located in a harsh and artic environment where concrete
structures have proven excellent characteristics with a minimum of
maintenance. 80 mm slump value is required for the Sakhalin
project. 28-days concrete characteristic strength is 2b MPa. It is
required that no more than 1 test result in 100 will fall below the
specified strength. The fine aggregate has a fineness modulus of
2.60 and Zone 3. For Coarse Aggregate (Uncrushed): SSD Bulk
Specific Gravity: 2.65, Absorption Capacity: 2.b %, Total Moisture:
1.c % and Dry Rodded Unit Weight: 1345 kg/m3. For Fine Aggregate
(Uncrushed): SSD Bulk Specific Gravity: 2.70, Total Moisture: 3.d %
and Free Moisture: 2 %. Cement: Portland Composite Cement, Specific
Gravity: 2.97. For 0.e5 m3 of concrete, binder amount is calculated
as 120 kg (Use ACI Method of Mix Design)
In: Civil Engineering
Chemical destruction of contaminants of emerging concerns (CESs)in wastewater .Can u explain step by step deeply ,
In: Civil Engineering
1 Explain the significance of low For content in lunar
rocks for understanding the origin of the moon and earth
2 Explain the significance oh hornblende(amphibole) in volcanic
rocks understanding the explosive style of eruptions of volcanoes
in the"Ring of fore"?
3Three mechanisms that can produce compositional banding in banding
in gneisses
In: Civil Engineering
In: Civil Engineering
Given a chance to give a lecture on ‘Acoustics’ in class, what are the ten different important terms / topics you would like to teach in Acoustics? Make a report of your own lecture-notes with those terms giving clear explanations and including pictures /sketches / diagrams /tables.
In: Civil Engineering
In: Civil Engineering
In: Civil Engineering
In: Civil Engineering
For preparing a design calculation for the curtain wall system of the facade of a building, what is the sequence or step for whole design calculation? How many elements should be included to be calculated.
In: Civil Engineering
Calculate the field weights of the ingredients for 0.047 m3 of concrete by using ACI Method of Mix Design. Job specifications dictate the followings:
Cement content: 330 kg/m3
w/c: 0.58 (by weight, from the strength point of view)
w/c: 0.54 (by weight, from durability point of view)
Air Content: 1,40 %
For Fine Aggregate (Crushed): SSD Bulk Specific Gravity: 2.48, Total Moisture: 5,0 % and Absorption Aggregate: 2,8 %.
For Coarse Aggregate (Crushed): SSD Bulk Specific Gravity: 2.60, Absorption Capacity: 2.0 %, Total Moisture: 1.7 % and Dry Rodded Unit Weight: 1483 kg/m3.
Cement: Sulphate Resisting Cement, Specific Gravity: 3.18.
In: Civil Engineering
Describe in detail, the AISC Code in your own words.
In: Civil Engineering