Coarse Aggregate: well-graded % in. nominal maximum-size aggregate (NMSA), crushed limestone, angular Oven-dry specific gravity: 2.65 Absorption: 1.70% Oven-dry rodded bulk density: 101 Ib/ft3 Moisture content of coarse stockpile: 2.21% Fine Aggregate: well-graded natural sand Oven-dry specific gravity: 2.55 Absorption: 1.6% Moisture content of fine stockpile: 2.4% Fineness Modulus: 2.4 Following the ACI 211.1-95 procedure, design a concrete mixture that meets the following criteria: A concrete that will be used for a reinforced concrete wall. The thickness of the wall is 8 inches. The minimum distance between rebar will be 3 in. The cover of the concrete over the rebar will be 1.5 inches. A required slump of 6 inches An exposure condition that includes no sulfates, but regular freezing action, but the concrete element will not be continually exposed to moisture or deicing chemicals A required compressive strength of 5000 psi. Your concrete wall will be 28 feet long, 10 inches thick, and 13 feet tall. Calculate the following a) The theoretical dry batch weights for a concrete mixture of a size of 1 cubic yard. b) The moisture content adjusted batch weights for a concrete mixture of a size of 1 cubic yard. c) The batch weights required to cast the entire wall.
Coarse Aggregate: well-graded % in. nominal maximum-size aggregate (NMSA), crushed limestone, angular Oven-dry specific gravity: 2.65 Absorption: 1.70% Oven-dry rodded bulk density: 101 Ib/ft3 Moisture content of coarse stockpile: 2.21% Fine Aggregate: well-graded natural sand Oven-dry specific gravity: 2.55 Absorption: 1.6% Moisture content of fine stockpile: 2.4% Fineness Modulus: 2.4 Following the ACI 211.1-95 procedure, design a concrete mixture that meets the following criteria: A concrete that will be used for a reinforced concrete wall. The thickness of the wall is 8 inches. The minimum distance between rebar will be 3 in. The cover of the concrete over the rebar will be 1.5 inches. A required slump of 6 inches An exposure condition that includes no sulfates, but regular freezing action, but the concrete element will not be continually exposed to moisture or deicing chemicals A required compressive strength of 5000 psi. Your concrete wall will be 28 feet long, 10 inches thick, and 13 feet tall. Calculate the following a) The theoretical dry batch weights for a concrete mixture of a size of 1 cubic yard. b) The moisture content adjusted batch weights for a concrete mixture of a size of 1 cubic yard. c) The batch weights required to cast the entire wall.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 8
What is the modulus of rupture of a concrete prism that failed at a load of 5340 pounds. The
prism's dimensions are 14 inches by 4 inches wide by 4 inches deep.
Question 8
The following materials are available for a concrete mixture design:
ASTM C 150 Type I/II Cement
Relative density of 3.15
Transcribed Image Text:Coarse Aggregate: well-graded % in. nominal maximum-size aggregate (NMSA), crushed
limestone, angular
Oven-dry specific gravity: 2.65
Absorption: 1.70%
Oven-dry rodded bulk density: 101 lb/ft3
Moisture content of coarse stockpile: 2.21%
Fine Aggregate: well-graded natural sand
Oven-dry specific gravity: 2.55
Absorption: 1.6%
Moisture content of fine stockpile: 2.4%
Fineness Modulus: 2.4
Following the ACI 211.1-95 procedure, design a concrete mixture that meets the following
criteria:
A concrete that will be used for a reinforced concrete wall. The thickness of the wall is 8
inches. The minimum distance between rebar will be 3 in. The cover of the concrete over
the rebar will be 1.5 inches.
A required slump of 6 inches
An exposure condition that includes no sulfates, but regular freezing action, but the
concrete element will not be continually exposed to moisture or deicing chemicals
A required compressive strength of 5000 psi.
Your concrete wall will be 28 feet long, 10 inches thick, and 13 feet tall.
Calculate the following
a) The theoretical dry batch weights for a concrete mixture of a size of 1 cubic yard.
b) The moisture content adjusted batch weights for a concrete mixture of a size of 1 cubic
yard.
c) The batch weights required to cast the entire wall.
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