Design a concrete mix in accordance with the B.R.E. method and calculate the quantity of each constituent material for trial mix. The specification of the concrete mix is:
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Design a concrete mix in accordance with the B.R.E. method and
calculate the quantity of each...
Problem with different moisture conditions: 5. Calculate the quantities of cement, water, fine ag...
Problem with different moisture conditions: 5. Calculate the quantities of cement, water, fine aggregate, and coarse aggregate per trial mix of 1 m3 for the following specifications. Target mean compressive strength-30 MPa at 7 days; Cement strength class 42.5; Slump required 100 mm; Max. Aggregate size 20 mm; specific gravity of aggregates 2.65% Coarse aggregate UNCRUSHED (10, 20mm), fine aggregate CRUSHED (50% pass 600 micros); Maximum allowable free- water/cement ratio 0.40; Minimum allowable cement content 275 kg/m3; Absorption of fine...
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...
NEC2103-Engineering Materials and Construction Example Mix Design Problems Question 2. Design a concrete mix using...
NEC2103-Engineering Materials and Construction Example Mix Design Problems Question 2. Design a concrete mix using fly ash from the following data for use as fly ash concrete blocks. Use the British DOE method to calculate the required amounts (in kg/m') of water, cement, course aggregate and fine aggregate. Characteristic 28 days mean strength 25 MPa Risk factor may be taken =1.65 Standard deviation = 5.0 The max. size of coarse, aggregate C.A. = 20 mm 40% F.A. passes through 600...
Admixture for Concrete
Please carry out a concrete mix design for an air-entrained concrete production based on the following data below;Characteristic strength: 69 N/mm2 28-day design strength concreteDefective rate (k): 5%PC strength class: 42,5Aggregate type: Coarse: CrushedFine : UncrushedSlump : S3 workability class under EN 206 (find out the range)Maximum aggregate size : 28 mm (2-digit)Maximum free w/c ratio: 0.48Minimum cement content: 385 kg/m3Relative density of aggregate : 2.69 (2 decimal places)Grading of fine aggregate passing 600 µm : 70%Standard deviation: 4 N/mm2Air content: 4%
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...
Q1// Use the ACI method to design a concrete mix which is required to obtain f'c28=...
Q1// Use the ACI method to design a concrete mix which is required to obtain f'c28= 34.5MPa and a slump of 75mm. the fineness modulus of the aggregate is 3.0, the bulk density of coarse aggregate is 1600 kg/m' and the maximum size is 25. Both the specific gravity of fine and coarse aggregate are 2.68. neglect the absorption and total moisture content.
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:...
Make concrete from the following materials.How can I calculate the predict compressive strength o...
Make concrete from the following materials.How can I calculate the
predict compressive strength of their constructed specimens? What
is the formula?
Thanks.
Table 1: Given mix proportion Coarse Fine Water Cement Aggregate Aggregate (ka (kg) 370 (kg) 209 (kg) 2897 (kg) 85 1m3 concrete 13233 RequiredS
Table 1: Given mix proportion Coarse Fine Water Cement Aggregate Aggregate (ka (kg) 370 (kg) 209 (kg) 2897 (kg) 85 1m3 concrete 13233 RequiredS
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...
Problem with different moisture conditions: 5. Calculate the quantities of cement, water, fine aggregate, and coarse aggregate per trial mix of 1 m3 for the following specifications. Target mean compressive strength-30 MPa at 7 days; Cement strength class 42.5; Slump required 100 mm; Max. Aggregate size 20 mm; specific gravity of aggregates 2.65% Coarse aggregate UNCRUSHED (10, 20mm), fine aggregate CRUSHED (50% pass 600 micros); Maximum allowable free- water/cement ratio 0.40; Minimum allowable cement content 275 kg/m3; Absorption of fine...
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...
NEC2103-Engineering Materials and Construction Example Mix Design Problems Question 2. Design a concrete mix using fly ash from the following data for use as fly ash concrete blocks. Use the British DOE method to calculate the required amounts (in kg/m') of water, cement, course aggregate and fine aggregate. Characteristic 28 days mean strength 25 MPa Risk factor may be taken =1.65 Standard deviation = 5.0 The max. size of coarse, aggregate C.A. = 20 mm 40% F.A. passes through 600...
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...
Q1// Use the ACI method to design a concrete mix which is required to obtain f'c28= 34.5MPa and a slump of 75mm. the fineness modulus of the aggregate is 3.0, the bulk density of coarse aggregate is 1600 kg/m' and the maximum size is 25. Both the specific gravity of fine and coarse aggregate are 2.68. neglect the absorption and total moisture content.
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:...
Make concrete from the following materials.How can I calculate the
predict compressive strength of their constructed specimens? What
is the formula?
Thanks.
Table 1: Given mix proportion Coarse Fine Water Cement Aggregate Aggregate (ka (kg) 370 (kg) 209 (kg) 2897 (kg) 85 1m3 concrete 13233 RequiredS
Table 1: Given mix proportion Coarse Fine Water Cement Aggregate Aggregate (ka (kg) 370 (kg) 209 (kg) 2897 (kg) 85 1m3 concrete 13233 RequiredS
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...
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