Question

In: Civil Engineering

Design a PCC mix for the following scenario: CE 20400 Spring 2020 Design Environment: Unreinforced Slab...

Design a PCC mix for the following scenario:

CE 20400 Spring 2020

Design Environment: Unreinforced Slab in Minneapolis, Minnesota

                                   Consider the city to be a cold climate with severe weather

Required design strength: 4500 psi

Slab thickness:                   18 inches

Statistical data indicate a standard deviation of compressive strength of 200 psi

      (more than 30 samples)

Only air entrainer allowed

Air entrainer: Manufacturer specification is: 0.20 fl oz/1% air/100 lb cement

Course aggregate:             1 ½” nominal maximum size crushed stone

                                            Bulk oven dry specific gravity 2.5

                                            Absorption 0.2%

                                            Oven-dry rodded density 125 pcf

                                            Moisture content 1.5%

Fine aggregate:                  Natural sand

                                            Bulk oven dry specific gravity 2.45

                                            Absorption 0.2%

                                            Moisture content 4%

                                            Fineness modulus 2.8

Cement                               Specific gravity 3.15

                                

Solutions

Expert Solution

For the given specifications complete mix design is shown below.

Final mix proportion after moisture correction is given at the end.

Ally Wells answered 8 months ago
Next > < Previous

Related Solutions

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/100lb cement Coarse aggregate: 2in. nominal maximum size, crushed stone Bulk oven dry specific gravity = 2.573, absorption =...
Using the following data for an unreinforced PCC Pavement slab: ■ Design strength f′ c =...
Using the following data for an unreinforced PCC Pavement slab: ■ Design strength f′ c = 28 MPa ■ Slab thickness = 300 mm ■ Standard deviation of f′ c obtained from 20 samples = 1.4 MPa ■ Ignore any exposure requirement ■ Use air-entrained concrete ■ Fineness modulus of fine aggregate = 2.60 ■ Maximum aggregate size = 50 mm and nominal maximum aggregate size = 37.5 mm ■ Bulk oven-dry specific gravity of coarse aggregate = 2.6 ■...
Design a mix for a 3,000 psi concrete to be used in an indoor basement slab....
Design a mix for a 3,000 psi concrete to be used in an indoor basement slab. Your gravel is an ASTM C33C #57 stone. Your fine aggregate grades as follows: No. 4 – 3%, No. 8 – 7%, No. 16 – 20%, No. 30 – 25%, No. 50 – 20%, No. 100 – 15%, Pan – 10%. What is your mix and list out what you can do to make a durable mix that is economically competitive? How would you...
Design the concrete mix according to the following conditions: Design Environment Caissons for Bridge pier crossing...
Design the concrete mix according to the following conditions: Design Environment Caissons for Bridge pier crossing to the Outer Bankers, NC Required design strength=4800psi Minimum dimension = 12 in. Minimum space between rebars = 2.5 in. Minimum cover over rebars = 2.5 in. Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrained is allowed. Available Materials Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement. Aggregate:...
Design the concrete mix according to the following conditions: Design Environment Caissons for Bridge pier crossing...
Design the concrete mix according to the following conditions: Design Environment Caissons for Bridge pier crossing to the Outer Bankers, NC Required design strength=4800psi Minimum dimension = 12 in. Minimum space between rebars = 2.5 in. Minimum cover over rebars = 2.5 in. Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrained is allowed. Available Materials Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement. Aggregate:...
In regards to the mix design of concrete, respond to each of the following by showing...
In regards to the mix design of concrete, respond to each of the following by showing detailed calculations. Use the tables and figures below. 1. If the concrete characteristic strength = 40 MPa, with 2.5% defective test results, what will be the target mean strength? 2. If the target mean strength of concrete = 30 MPa at 28 days, the coarse aggregate is uncrushed, using GP (General Purpose) cement, what is the water cement ratio W/C? 3. If the concrete...
Facebook Investigation Scenario Part 1 Spring 2017 Note: the following scenario is fictional as are all...
Facebook Investigation Scenario Part 1 Spring 2017 Note: the following scenario is fictional as are all parties named in the story Initial Complaint: March 20, 2017– 8:41 AM. Mary Jones, a junior at the University of New Haven has contacted local police stating that sometime between midnight on October 11th, 2016 and 8 am on March 20, 2017, her ex-fiancé, Pete Sampson, posted semi-nude pictures of Ms. Jones on his Facebook page and also called Ms. Jones several derogatory names...
Q 1: Design a concrete mix for the following performances and ingredients: * Compressive strength at...
Q 1: Design a concrete mix for the following performances and ingredients: * Compressive strength at 28 days = 32 MPa, slump 80 mm * Crushed coarse aggregate of max size 20 mm readily available * Fine aggregate is river sand, fineness modulus = 2.5 * Cement Strength Class = 42.5 * Specific gravity of combined aggregate =2.6 * Water absorption of coarse aggregate = 0.8% * Water absorption of fine aggregate = 0.5% Q 2: Design a concrete mix...
8) Design a concrete mix for the following conditions and constraints using the absolute volume method:...
8) Design a concrete mix for the following conditions and constraints using the absolute volume method: Design Environment : Non-air entrained concrete will be used to cast Concrete frame. Required design strength(5000 psi) Minimum dimension (10 in.) Minimum space between rebars (1.5 in.) Minimum cover over rebars (2.5 in.) Standard deviation of compressive strength (600 psi) , (25 samples) Available Materials Cement Type II , moderate exposure Coarse aggregate Nominal Maximum size 1 in. river gravel (round) Bulk oven dry...
Spring 2020 Employee Benefits General Instructions:   Please respond to the following questions as completely as practicable....
Spring 2020 Employee Benefits General Instructions:   Please respond to the following questions as completely as practicable. Please limit the total number of pages to no more than 2, typed, double-spaced. Focus on answering the question(s) drawing on the material covered in the text as well as the material covered during class. If you feel that you may need more facts to answer a question, please identify the different paths and as appropriate make presumptions and move forward. If you still...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT