A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strength, the water-to-cement ratio is reduced to 0.45. Will the quantity of coarse aggregate increase, decrease, or stay the same? Explain your answer

A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strength, the water-to-cement ratio is reduced to 0.45. Will the quantity of coarse aggregate increase, decrease, or stay the same? Explain your answer

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: To test the compressive strength of cement mortar, three 2” cubes were cast with three different…

A: Given: Length of mortar cubes = 2 in Mix No. w/c Ratio Cube No. Maximum Load (lb) 1…

Q: The quantity of Fine aggregate required in making cement concrete of quantity 15 m³ using mix 1 :…

A: given volume of the concret mix=15 m3ratio of the mix=1:1.5:2.5

Q: Compute for the DESIGN MIX of concrete a. by volume b. mass basis c. in situ state I. II.…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: Create a design mix using the ACI DESIGN MIX PROCEDURE with the following parameters: Air Entrained…

Q: Calculate the quantities of cement, water, and fine aggregate and coarse aggregate per trial mix of…

A: Target mean strength= 50+1.65*5= 58.25 MPa w/c ratio =0.5 Slump value = 30-60 mm maximum size of…

Q: Please show full steps correctly and handwritten thankss

A: Based on the information provided and the image you sent, it appears to be a word problem related to…

Q: Define and discuss the following: (a) the terms maximum aggregate size and grading, as used in…

A: a) Maximum aggregate size: The concrete that is used for construction purposes contains about 70% of…

Q: Three 100*200 mm cylindrical concrete specimens were tested for 28 days compressive strength and…

A: Solution: Given: Three Compress strengths of same concrete sample: C1=25.5MPa C2=28.6Mpa C3=24.8MPa…

Q: Calculate the quantities of cement, water, and fine aggregate and coarse aggregate per trial mix of…

A: building material : The term "building material" refers to construction materials. Many naturally…

Q: In the normal consistency of paste cement, If I get 30 percent normal consistency, what does it…

A: In the normal consistency of paste cement, If I get 30 percent normal consistency, Implies as :…

Q: Estimate the quantity of (cement, fine aggregate, coarse

A: Solution: Choice of slump = 70 mm Choice of maximum size of aggregate = 32 mm Estimate of water…

Q: Estimate the quantity of (cement, fine aggregate, coarse

A: Solution: Choice of slump = 50 mm Choice of maximum size of aggregate = 31 mm Estimate of water…

Q: .The characteristic compressive strength of concrete required in a project is 25 MPa and standard…

Q: 6) Find the forces in the FH, GH and GI bars in the truss system shown in the figure.

A: Force in members of trusses can be tension or compression and to calculate the magnitude of force in…

Q: The characteristic compressive strength of concrete required in a project is 25 MPa and the standard…

A: Given- fck=25 MPa,standard deviation σ=4 MPa, It is needed to find the water cement ratio.

Q: Adjustment of water content: From durability consideration, maximum water/cement ratio of a concrete…

A: Given data, Maximum water/cement ratio = 0.4 Minimum cement content = 450 kg/m3 Minimum slump = 150…

Q: The following table represents a concrete mixture that has not been completely proportioned. The…

A: Question is based on the concrete mixture (oven dry basis) . Proportion of water, Air, coarse…

Q: The moisture content of coarse aggregate is 0.60%. If the mass of the aggregate is 1,290 kg, adjust…

A: moisture content of coarse aggregate = 0.60%. mass of the aggregate = 1,290 kgvolume of sand = 0.30…

Q: The water-cement ratio (in percent, round off to the lower integer) to be used in the mix

A: Given data, Characteristic Compressive strength C=25 MPaObserved compressive strength,σ=4 MPaRatio…

Q: What is the amount of cement in kilograms needed for the design mix? (use two decimal places, no…

A: Answer To calculate the amount of cement in kilogram needed for the design mix we need to obtain…

Q: You are working on a concrete mix design that requires each cubic yard of concrete to have a 0.43…

A: Water–cement ratio = 0.43C.A = 2077 lb/yd3 =1232 kg/m3 Water content = 244 lb/yd3 = 145 kg/m3Air…

Q: Concrete is required for several structural members of a residential house. Due to the present…

Q: We require a mix with a mean 28-day compressive strength of 40 MPa the size of the member and the…

A: Reference : ACI 318 Mix design All tables are taken from ACI 318 mix design. We are not allowed to…

Q: We require a mix with a mean 28-day compressive strength of 26.5 MPa) the size of the member and the…

Q: water-cement ratio needed for the design mix?

A: As per ACI design mix procedure In air entrained concrete for the strength of concrete 5000psi,…

Q: Discuss the role of aggregate-cement paste interface in concrete. How does it influence the overall…

A: The aggregate-cement paste interface, often referred to as the interfacial transition zone (ITZ),…

Q: 1. Design a non-air-entrained concrete mix using, ACI Method for a reinforced Concrete Work for the…

A: f'c = 28 MPaSlump = 50 mmFM = 2.8Aggregate size = 70 mm

Q: How does shape and surface texture of aggregate effect workability, water requirement, and bond in…

A: Concrete is a combination of cement, aggregate, as well as liquid. Aggregate, typically makes up 60…

Q: 2. Design a non-air-entrained concrete mix using, ACI Method for a reinforced Concrete Work for the…

A: req char. comp. strenght f'c = 22 MPaSlump = 50 mmFM = 2.8Max Aggregate size = 70 mm

Q: In proportioning a concrete mix, the coarse and fine aggregates had the following properties…

A: Coarse aggregate weight = 800 lbDry aggregate weight = 350 lb

Q: th a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/ cu.…

A: Given:- slump = 3inch w/c ratio=0.5 fineness modulus =2.4 coarse aggregate =1 700 lb/cu yd. w/c…

Q: The value of M in the beam ABC shown in the figure is such that the joint B does not rotate 30 kN/m…

Q: 28-day compressive strength shoul 4,000 psi. The slump should be between 3 and 4 in. and the maxim…

A: Given:- 28 day compressive strength To find:- wet weight

Q: 3) The design of a concrete mix requires 1173 kg/m3 of gravel in dry condition, 582 kg/m3 of sand in…

A: Solution: Given that, Content of gravel = 1173 kg/m3 Moisture content of gravel = 0.8%, Absorption…

Q: A rapid sand filter provided in a town have undisturbed depth of 0.55 m. The average settling…

A: Given data for the rapid sand filter:Undisturbed depth of the filter: 0.55 mAverage settling…

Q: Consider the following example: The 28-day compressive strength should be 4,000 psi. The slump…

A: Given Data:Cement: sp. gravity = 3.15Coarse aggregate: = Bulk specific gravity SSD=2.87Absorption…

Q: Give any two examples of samples of different types of aggregates and note the different shapes,…

A: There are two type of aggregate:Coarse Aggregate: coarse aggregate has a size greater than 4.75 mm…

Q: 1. Following data are given for designing a Portland cement concrete mix for a nonstructural…

A: Note:- Hi, thank you for the question. As per our Honor code, we are allowed to attempt the first…

Q: The following table represents a concrete mixture that has not been completely proportioned. The…

A: The water to cement ratio compares how much water versus cement is used in a concrete mix. A low…

Q: 1- The strength and durability of concrete depend on * Size of aggregate Grading of aggregate…

Concept explainers

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.

Question

1. A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains
of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. To adjust the mix
so as to increase the compressive strength, the water-to-cement ratio is reduced to 0.45. Will the
quantity of coarse aggregate increase, decrease, or stay the same? Explain your answer

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Trending now

This is a popular solution!

Step by step

Solved in 10 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Compute for the corrected amount of water needed in the concrete mix if the mass of fine and coarse aggregates are 740 kg and 1100 kg, and both have a natural moisture content of 2% and 1.5% respectively. Water/cement ratio is 0.50 and the mass ratio of concrete is 1:2:3 o 216.3 kg o 171.9 kg o 170.2 kg o 153.7 kg Next.
Determine the water cement ratio ?
The compressive strengths of a concrete sample at dry, air-dry and water saturated conditions are 24.5MPa, 22.6MPa and 21.5MPa, respectively. What's the softening coefficient of this concrete? () A) 0.92 B) 0.96 C) 0.13 D) 0.88
The volume of concrete required for a certain project is 20m^3. The density of concrete is 2400kg/ m^3. Concrete is composed of fine and coarse aggregates, water, and cementitious materials: cement and fly ash. The ratio of fine and coarse aggregates is 2:1. Water-to-cement ratio is 0.40. Percentage of the fly ash to the total cementitious material is 0.30. Total aggregate-to-cement ratio is 5:1. Density of fine aggregates is 2680kg/m^3. Density of coarse aggregate is 2500kg/m^3. Density of water is 1000kg/m^3. Density of cement is 3150kg/m^3. Density of fly ash is 1300kg/m^3. Determine the weight required for each component. All ratios use weights. Round off your answers to the nearest tenth of a kilogram. Have one significant figure after the decimal point. Find: Weight of Fine Aggregates: Weight of Coarse Aggregates: Weight of Water: Weight of Cement: Weight of Fly Ash:
The characteristic compressive strength of concrete required is a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table. Water content (%) 45 50 55 60 Average compressive strength of cubes (MPa) 35 25 20 15 20 15 The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is
How does the increase of maximum aggregate size used in the concrete mix design affect the percentage of fine aggregates needed for the mix? Explain why this is the case.
Create a design mix using the ACI DESIGN MIX PROCEDURE with the following parameters: Non-air Entrained Concrete Required Strength = 35 MPa Required Slump = 6 inches Maximum Size of CA = 3/4 inches Fineness Modulus of CA = 2.45 Density of CA = 1555 Kg/m3 SG of Water = 1.00 SG of Cement = 3.15 SG of CA = 2.84 SG of FA = 2.40
ASAP
The volume of concrete required for a certain project is 20m^3. The density of concrete is 2400kg/m^3. Concrete is composed of fine and coarse aggregates, water, and cementitious materials: cement and fly ash. The ratio of fine and coarse aggregates is 2:1. Water-to-cement ratio is 0.40. Percentage of the fly ash to the total cementitious material is 0.30. Total aggregate-to-cement ratio is 5:1. Density of fine aggregates is 2680kg/m^3. Density of coarse aggregate is 2500kg/m^3. Density of water is 1000kg/m^3. Density of cement is 3150kg/m^3. Density of fly ash is 1300kg/m^3. Determine the weight required for each component. All ratios use weights. Round off your answers to the nearest tenth of a kilogram. Have one significant figure after the decimal point. Find: Weight of Fine Aggregates: Weight of Coarse Aggregates: Weight of Water: Weight of Cement: Weight of Fly Ash:
A concrete mix with a 75 mm slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1009 kg/m3 of coarse aggregate. Compute the required mass of coarse aggregate per cubic meter. To adjust the mix so as to increase the compressive strength, the water–cement ratio is reduced to 0.45. Will the quantity of coarse aggregate increase, decrease, or stay the same? Explain your answer.
Thank you so much. Please hand write if possible
An air-entrained concrete mix is required for a structure that is severely exposed to sulfate. Given: Required strength 35 MPa; slump 80 mm; Coarse aggregate: 19 mm nominal maximum size. The amount of water required for this mix and the corresponding air content respectively are Select one: O A. 190 Kg and 2% O B. 184 Kg and 6% O C. 184 Kg and 3.5% O D. 205 Kg and 2%