Material design
Design a concrete mix that will provide a 28-day compressive strength of 4000 psi in a concrete intended for producing a 5-in.-thick retaining wall 6 ft high. We expect to have about 2% air entrained in the concrete, although we will not intentionally entrain air. The aggregate contains 1% moisture, and we have only coarse sand con- taining 5% moisture available
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Compute the SSD mix proportions for the following mix design using the ACI method: Compressive Strength:...
Compute the SSD mix proportions for the following mix design using the ACI method: Compressive Strength: 3,000 psi Slump: 4 inches Non-Air Entrained Concrete The materials have the following properties: | Cement: Type I, specific gravity = 3.15 | Fine Aggregate: Bulk specific gravity = 2.68; fineness modulus = 2.40 Coarse Aggregate: Maximum size aggregate = 1 inch; bulk specific gravity = 2.68; Dry-rodded unit weight = 100 lbs/ft3
Please show which equations you use and describe in detail. 21. concrete mix design, Design the...
Please show which equations
you use and describe in detail.
21. concrete mix design, Design the concrete mix according to the following conditions: Design Environment Unreinforced slab, Bozeman, Montana (cold climate) Required design strength = 3500 psi Slab thickness = 12 in Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrainer is allowed Available materials Air entrainer: manufacture specification is 0.15 fl oz/1%/100 lb cement Coarse aggregate: 2...
Design the concrete mix according to the following conditions: Design Environment Pavement slab, Bozeman, Montana (cold...
Design the concrete mix according to the following conditions: Design Environment Pavement slab, Bozeman, Montana (cold climate) Required design strength = 3000 psi Slab thickness = 12 in. Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrainer is allowed. Available Materials Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement. Coarse aggregate: 2 in. nominal maximum size, crushed stone Bulk oven-dry specific gravity = 2.573, absorption...
Design a concrete mixture using the following data when the mixture design strength is 3000psi (20.7...
Design a concrete mixture using the following data when the mixture design strength is 3000psi (20.7 MPa): Required strength = 5000 psi (34.5 MPa) type of structure: beam Maximum size of aggregate = 1in (18mm) Fineness Modulus of sand =2.6 Dry rodded weight of coarse aggregate = 100 lb/ft^3 Moisture absourption: 2% for Coarse and Fine aggregate
please help with this concrete design mix problem (40 points) Design the concrete mix according to...
please help with this concrete design mix problem
(40 points) Design the concrete mix according to the following conditions. Perform the necessary computations to determine all ingredients in (kg) per unit volume of mix, and state resources and cite references used for each step. Summarize your design in the table at the bottom, and answer the questions beneath the table. Application Environment Area 52, airport location Idaho, (150m x 50m) runway test section Exposures: freeze-thaw, deicers Design Environment Concrete Requirements:...
use (absolute volume method). Calculate the materials (type II cement, coarse aggregate, fine aggregate, and water)...
use (absolute volume method). Calculate the materials (type II cement, coarse aggregate, fine aggregate, and water) needed to make 16 concrete cylinders (diameter = 4", height = 8") for our compression tests. Specified compressive strength = 3000 psi at 28 days. For coarse aggregate, please choose 3/4 in max size gravel containing some crushed particles with the following assumptions: oven-dry specific gravity of 2.68; oven-dry rodded unit weight: 100 lb per cu. ft; moisture content: 1%.
The following requirements are specified for concrete construction of a reinforced concrete jetty exposed to sea...
The following requirements are specified for concrete construction of a reinforced concrete jetty exposed to sea water and moderate freeze and thaw environment Required Design Strength, fc Slump required Standard deviation Cement 35 MPa 25-75 mnm 4.8 MPa Ordinary portland cement with relative density 3.15 Fine Aggregate (Natural Sand) Oven-dry relative densitv SSD moisture content Moisture content of sample Fineness Modulus 2.3 0.2 % 4.3 % 2.63 Coarse aggregate (crushed stone) Nominal maximum aggregate size Oven-dry relative density SSD moisture...
Hi, can you help me do this problem, i know its a little bit long but...
Hi, can you help me do this problem, i know its a little bit
long but i really need to know how to answer it and know the
answer
thank you
Problem 2 Concrete Mix Design. (30 points) You are planning to place concrete for a roof slab in a 3 story light commercial building located in Boston, MA (cold climate). Develop the mix proportion for this concrete. Explain your selections. Design Criteria: 290 Design strength-3.700 psi Statistical data based...
Question 1. A concrete mix is to be designed for use in a 250 mm thick road pavement. The desired properties are pr...
Question 1. A concrete mix is to be designed for use in a 250 mm thick road pavement. The desired properties are provided below. Use the ACI method to calculate the required amounts per unit volume (/1m) of water, cement, course aggregate and fine aggregate. Slump 25 mm Average 28-day flexural strength of at least 4.5 MPa Coarse aggregate: nominal maximum size = 37.5 mm, dry-rodded weight 1600 kg/m3, specific gravity 2.68, moisture content 1.0 percent, absorption 0.5 percent Fine...
Fill in the blanks (20%) res in materials help to improve heat insulation or sound adsorption....
Fill in the blanks (20%) res in materials help to improve heat insulation or sound adsorption. Generally the materials with more pores possessed better heat insulation. res showed better sound adsorption. (open or Those materials with more close) 12 For the brittle material, few deformation appears before fracture, and by the brittle material often fractured suddenly without any premonition. For the brittle L, the compressive strength usually much than tensile strength. in silicate minerals in the cement clinkers are, and...
Compute the SSD mix proportions for the following mix design using the ACI method: Compressive Strength: 3,000 psi Slump: 4 inches Non-Air Entrained Concrete The materials have the following properties: | Cement: Type I, specific gravity = 3.15 | Fine Aggregate: Bulk specific gravity = 2.68; fineness modulus = 2.40 Coarse Aggregate: Maximum size aggregate = 1 inch; bulk specific gravity = 2.68; Dry-rodded unit weight = 100 lbs/ft3
Please show which equations
you use and describe in detail.
21. concrete mix design, Design the concrete mix according to the following conditions: Design Environment Unreinforced slab, Bozeman, Montana (cold climate) Required design strength = 3500 psi Slab thickness = 12 in Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrainer is allowed Available materials Air entrainer: manufacture specification is 0.15 fl oz/1%/100 lb cement Coarse aggregate: 2...
Design the concrete mix according to the following conditions: Design Environment Pavement slab, Bozeman, Montana (cold climate) Required design strength = 3000 psi Slab thickness = 12 in. Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrainer is allowed. Available Materials Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement. Coarse aggregate: 2 in. nominal maximum size, crushed stone Bulk oven-dry specific gravity = 2.573, absorption...
please help with this concrete design mix problem
(40 points) Design the concrete mix according to the following conditions. Perform the necessary computations to determine all ingredients in (kg) per unit volume of mix, and state resources and cite references used for each step. Summarize your design in the table at the bottom, and answer the questions beneath the table. Application Environment Area 52, airport location Idaho, (150m x 50m) runway test section Exposures: freeze-thaw, deicers Design Environment Concrete Requirements:...
The following requirements are specified for concrete construction of a reinforced concrete jetty exposed to sea water and moderate freeze and thaw environment Required Design Strength, fc Slump required Standard deviation Cement 35 MPa 25-75 mnm 4.8 MPa Ordinary portland cement with relative density 3.15 Fine Aggregate (Natural Sand) Oven-dry relative densitv SSD moisture content Moisture content of sample Fineness Modulus 2.3 0.2 % 4.3 % 2.63 Coarse aggregate (crushed stone) Nominal maximum aggregate size Oven-dry relative density SSD moisture...
Hi, can you help me do this problem, i know its a little bit
long but i really need to know how to answer it and know the
answer
thank you
Problem 2 Concrete Mix Design. (30 points) You are planning to place concrete for a roof slab in a 3 story light commercial building located in Boston, MA (cold climate). Develop the mix proportion for this concrete. Explain your selections. Design Criteria: 290 Design strength-3.700 psi Statistical data based...
Question 1. A concrete mix is to be designed for use in a 250 mm thick road pavement. The desired properties are provided below. Use the ACI method to calculate the required amounts per unit volume (/1m) of water, cement, course aggregate and fine aggregate. Slump 25 mm Average 28-day flexural strength of at least 4.5 MPa Coarse aggregate: nominal maximum size = 37.5 mm, dry-rodded weight 1600 kg/m3, specific gravity 2.68, moisture content 1.0 percent, absorption 0.5 percent Fine...
Fill in the blanks (20%) res in materials help to improve heat insulation or sound adsorption. Generally the materials with more pores possessed better heat insulation. res showed better sound adsorption. (open or Those materials with more close) 12 For the brittle material, few deformation appears before fracture, and by the brittle material often fractured suddenly without any premonition. For the brittle L, the compressive strength usually much than tensile strength. in silicate minerals in the cement clinkers are, and...
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