Aggregate Homework --No. (2)Q1: A/ Explain the concrete failures and which type is the commonfor concrete in Iraq?B/ Define A.C.V and list Aggregate shape?C/What is the effect of chloride in aggregate?Q2: Example: compare this sample of fine aggregate with Iraqi andASTM specification in grading.Sieve9.54.752.361.180.60.3 0.15PanSize (mm)Returned451529688533220Weight (gm)Q3: Define the fallowing1- Aggregate absorption2- Angularity number3- Mortar-barQ4: why the use of larger aggregate size don't contribute to higherstrength?Q5: For a sample of coarse aggregate the saturated surface dryweight (2000gm) its dry weight (1982 gm) and its immersed weight(1238 gm) find:-The apparent specific gravity.- The absorptionQ6: what the determination of the max. aggregate size depend on ?Q7: give the relation between the fallowing1- Surface roughness of aggregate and workability2- Strength of concrete and surface roughness of aggregateQ8: compare between Rounded and Flaky aggregateQ9: what the factor affected on the minimum drying shrinkage

1) Failures of the concrete structure depends upon the disaster that the country or…

Answered: Q1: A/ Explain the concrete failures…

Q1: A/ Explain the concrete failures and which type is the common for concrete in Iraq? B/ Define A.C.V and list Aggregate shape? C/What is the effect of chloride in aggregate?

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 4RQ

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Concept explainers

Pricing Concrete Work

The concrete work in a project usually holds a high-end cost in terms of cost and value of the work. It becomes an important step in calculating the cost associated with concrete while preparing the project scale. The cost of making concrete depends on the cost of building materials, mixed materials, labor, and machinery. A concrete contractor builds structures from concrete, usually managing all the steps of the process from assembling ingredients to building a holding structure and preparing the mixture. This person or team oversees the delivery and unloading of goods to ensure that they are done properly. Nowadays, most of the concrete in the United States comes from manufacturers working abroad, usually with branches and plants within the provinces. Contributions can range from pre-mixed concrete to basic ingredients, the consumer company then mixes it. Many American-based concrete companies, however, offer concrete products, such as ballads, bricks, countertop, concrete pipe, and building products, as well as concrete construction and installation materials. This article covers both types of suppliers for this set of building materials.

Question

Aggregate Homework --No. (2)
Q1: A/ Explain the concrete failures and which type is the common
for concrete in Iraq?
B/ Define A.C.V and list Aggregate shape?
C/What is the effect of chloride in aggregate?
Q2: Example: compare this sample of fine aggregate with Iraqi and
ASTM specification in grading.
Sieve
9.5
4.75
2.36
1.18
0.6
0.3 0.15
Pan
Size (mm)
Returned
45
152
96
88
53
32
20
Weight (gm)
Q3: Define the fallowing
1- Aggregate absorption
2- Angularity number
3- Mortar-bar
Q4: why the use of larger aggregate size don't contribute to higher
strength?
Q5: For a sample of coarse aggregate the saturated surface dry
weight (2000gm) its dry weight (1982 gm) and its immersed weight
(1238 gm) find:
-The apparent specific gravity.
- The absorption
Q6: what the determination of the max. aggregate size depend on ?
Q7: give the relation between the fallowing
1- Surface roughness of aggregate and workability
2- Strength of concrete and surface roughness of aggregate
Q8: compare between Rounded and Flaky aggregate
Q9: what the factor affected on the minimum drying shrinkage

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