Assume that you are going to make a three cubic yard (3 yď³) of concrete. Create your own mix design to make the three cubic yards of concrete under a given condition. Conditions: The design compressive strength: 3,800 psi. The slump should be between 3 and 4 in. The maximum aggregate size: 2 in. The properties of the materials are as follows: Questions) Non-air-entrained Concrete: unit weight = 150 (lb/ft³) Coarse Aggregate (Gravel (well rounded)): unit weight = 110 lb/ft³ Fine Aggregate: fineness modulus = 2.70 Aggregate surface moisture is not considered in this example 1. Estimate the water content: 2. Adjust water content for aggregate shape:
Assume that you are going to make a three cubic yard (3 yď³) of concrete. Create your own mix design to make the three cubic yards of concrete under a given condition. Conditions: The design compressive strength: 3,800 psi. The slump should be between 3 and 4 in. The maximum aggregate size: 2 in. The properties of the materials are as follows: Questions) Non-air-entrained Concrete: unit weight = 150 (lb/ft³) Coarse Aggregate (Gravel (well rounded)): unit weight = 110 lb/ft³ Fine Aggregate: fineness modulus = 2.70 Aggregate surface moisture is not considered in this example 1. Estimate the water content: 2. Adjust water content for aggregate shape:
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Assume that you are going to make a three cubic yard (3 yď³) of concrete. Create your own
mix design to make the three cubic yards of concrete under a given condition.
Conditions:
The design compressive strength: 3,800 psi.
The slump should be between 3 and 4 in.
The maximum aggregate size: 2 in.
The properties of the materials are as follows:
Questions)
Non-air-entrained Concrete: unit weight = 150 (lb/ft³)
Coarse Aggregate (Gravel (well rounded)): unit weight = 110 lb/ft³
Fine Aggregate: fineness modulus = 2.70
Aggregate surface moisture is not considered in this example
1. Estimate the water content:
2. Adjust water content for aggregate shape:
Transcribed Image Text:3. Determine required strength:
4. Select the W/C ratio:
5. Calculate the cement content (provide solving process):
6. Estimate coarse aggregate content (provide solving process):
7. Estimate fine aggregate content (provide solving process)
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