If you have a dry weight of 35lb (aggregate, cement, and sand) and the mix proportion to produce the concrete is 3-2-1, what's the recommended quantity of these materials to produce a concrete with a strength of 15000lb? What chemical and admixtures are recommended to be used to increase the strength of the concrete?

Q: Question 2

A: The answer is attached below; please check. Explanation:Step 1:Here are five different methods of…

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Q: Consider the following particulars in respect of a concrete mix design: Specific Gravity Weight 400…

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Q: Question 1

A: The answer is attached below; please check. Explanation:Step 1:Step 2:Step 3:Step 4:Region 1:…

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Q: List the steps involved in proportioning of concrete (i.e. mix design) if the required concrete…

A: Moisture content MC : The aggregates contain some amount of water already. Such water is called as…

Q: Define the fineness modulus of aggregate. What is it used for?

A: The fineness modulus is the measure of the fine aggregate’s gradation. The fineness modulus of…

Q: What does the Specific Gravity of Fine Aggregate, Absorption of Fine Aggregate, and Surface Moisture…

A: Specific Gravity of Fine aggregate: It is the ratio of the weight of unit volume of Fine aggregate…

Q: The relation between strength and maturity for a concrete is known to be as follows: in SI units: f…

A: Given: The concrete is cured at 30oC. The time period is 7 days. The strength is 30 MPa. The time…

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: Weight of Fine Aggregates: Weight of Coarse Aggregates: Weight of Water: Weight of Cement: Weight of…

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Q: sp wt of SSD CA = 6135 g wt of submerged CA = 3901 g wt of oven-dry CA = 6008 g Calculate the bulk…

A: A=weight of oven dry coarse aggregate B=weight of SSD coarse aggregate C=weight of submerged coarse…

Q: The following mix design information is provided to you for 1 m³ concrete. • Air content = 5% • w/cm…

A: Reference : Concrete technology, Mix design ACI 318 mix design code Given : Air content, w/c ratio,…

Q: Which one of the following aggregates gives maximum strength in concrete? (a) Rounded aggregate b)…

A: Elongated aggregate have more length . Flaky aggregate are very think . Rounded aggregate have not…

Q: 1. Aggregate occupies what percentage by mass of normal concrete? 2. Natural aggregate deposits are…

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Q: Approximately 70% of concrete is made up from aggregates. Some stated that aggregates are only an…

A: b) Even in ideal conditions, the phrase inert indicates not reacting to anything else. As a result,…

Q: How do the properties of aggregate affect the quality of the concrete mix?

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Q: what is the effect of bulk specific gravity, bulk specific gravity (SSD), apparent specific gravity,…

A: Brief concept- Concrete mix- It has several components such as cement, water, coarse and fine…

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Q: Question Identify the correct sequence of the concrete manufacturing process by rearranging the…

A: The answers with explanation has been provided Explanation:

Q: The weights of ingredients for producing 1 m³ of concrete as obtained from mix design calculations…

A: weight of ingredients = 1 m3 Absorption capacities of coarse aggregate = 2 %Absorption capacities of…

Q: It is known that a concrete mix has 180 kg/m3 of water, 315 kg/m3 of sand. What is the coarse…

A: In 1 m3 of concrete mix : We have , Water= 180 kgm3 , Cement = 315 kgm3 Additional fines = 149 kgm3…

Q: Chemically speaking, how does concrete/cement react with water, its chemical composition, etc.? How…

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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: 3) For the beams and columns of a structure the followings are specified or determined. Design an…

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Q: Students in the materials lab mixed concrete with the following ingredients: 32.1 lb of cement, 51.6…

A: Solution: Given: Cement = 32.1 lb  = 14.6 kg Sand = 51.6 lb      = 23.4 kg Gravel = 67.5 lb    =…

Q: Q.1 Chemical admixtures have been used in the production of concrete to improve its performance in…

A: Part a) The primary admixture that would be used in this scenario would be a high-strength concrete…

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: The correct mix for a batch of concrete is 5:4:2 in terms of sand, gravel, and cement. The batch…

A: Objective: To determine the quantity of sand, gravel and cement for given concrete mix.   Given:…

Q: Explain two changes you would make to the mix proportions given in this photo to improve the…

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Q: (c) What is the requirement of workability in concrete mix? How consistency is different from…

A: The property of fresh concrete to meet the wide requirement like mixability, stability,…

Q: Question on Density of Concrete: The following are the proportions of a concrete mix per cubic meter…

A: Density is given by  ρ=MassVolume

Q: (c) Explain why concreting works in the rain is prohibited during construction. Give two (2)…

A: It is asked to explain why concreting works in the rain is prohibited during construction and also…

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