A blended cement concrete with 30% slag is used to place a 6 foot tall column in a single pour. The temperature of the concrete is 70 degrees. Will it be within the formworks design limits of 1000 psf?

Q: n the job, calculate the weight of cement, moist gravel, moist sand, and water that should be added…

A: Given:- water-cement ratio:- 2077 lb/yd³ of dry gravel, 244 lb/yd³ of water, and 4% air content.…

Q: A trial concrete mix is to be prepared for a garage floor which is subjected to freezing. and…

A: Solution: Concrete Mix Design: The required strength = 32 MPa Standard Deviation = 1.5 Coarse…

Q: A. A mixture of 1700 g of gravel (SSD) with an absorption of 1.3% and 1300 g of sand (SSD) with a…

A:

Q: How does one obtain a concrete sample from a batch in accordance with ASTM C172

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The strength of a sample of matured concrete is found to be 34.5MPa. Find the strength of identical…

A: In this question, we have to calculate the strength of concrete at the age of 14 days. The formula…

Q: A concrete mix has been designed as follows with a target characteristic compressive strength of 32…

A: Reference : ACI mix design 311The adjusted water can be defined as ;Where ;MC = Moisture contentAC =…

Q: Design a concrete mix which is already solved by using Eprical Formulas according to ACI and TS and…

A: Consider the example for designing A concrete mix required for construction of an industrial…

Q: Vhich admixture would you use in each case during mixing or at the job site? a. More time is…

A: The various admixtures required for given conditions are mentioned in the following step.

Q: (b) All basic chemical composition of Portland cement reacts with different rate of hydration. List…

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Q: As an engineer would you recommend the use of Fly ash instead of Portland cement, explain what…

A: Fly ash is an alternative for cement to reduce its use in the concrete mix. Cement manufacturing…

Q: d) Three specimens were cast during this trial production. The 28-day compressive strengths of these…

A: Given Data: The 28 days compression test results are: C1=44.1 MPa. C2=40.7 MPa. C3=42.7 MPa.

Q: A concrete mix should contain 305 kg/m3 cement and have a water-to-cement ratio of 0.49. How much…

A:

Q: A concrete mix for a concrete beam exposed to mild climate is to be designed according to the ACI…

A: Answer  Mix proportioning using ACI absolute volume method. Step (1) Calculate Required average…

Q: Please perform an experiment and provide a report on Air Content of Freshly Mixed Concrete by…

A: Answer:- Test equipment:- ASTM C231 along with following: 1. Tamping rod:- has 18 inch length and…

Q: What is the advantage from using lean concrete?

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

Q: Required maximum dry density for aggregate subbase course.

A: This result is obtained from standard proctor Test

Q: Why is super plasticizer added to concrete? 1. To reduce the quantity of mixing water. 2. To…

A: Superplasticizer added to concrete because : Reduce water cement ratio Reduce quantity of cement…

Q: H.W. #1 27 Nov. 2021 Q.I A Convert the mix ratio of concrete (1: 2: 3.5/ 0.55) by weight to the mix…

A: Note: Hi! Thank you for the question as per the honour code, we’ll answer the first question since…

Q: Using any kind of non-potable water is prohibited in concrete production.   true or false

A: Explanation :  A sustainable concrete production needs constant supply of water.The potable water (…

Q: How to calculate the concrete diffusion co-efficient from an existing chloride profile data using…

A: Introduction on how to calculate diffusion co-efficient from an existing chloride profile data  For…

Q: Design a concrete mix for the following conditions and constraints using the Absolute Volume Method.…

A: Given  Required Design Compressive Strength (f'c) = 27.6 MPa Standard Deviation of Compressive…

Q: Briefly discuss the procedure for filling up the slump cone with fresh concrete sample.

A: As per our guideline, we are supposed to answer only first question. Kindly repost other question as…

Q: Calculate the average density of brick. ?

A: Brick No. Length mm Width mm Depth mm Mass kg 1 213 98 70 2.52 2 212 98 70 2.5 3 211…

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: You are an engineer in charge of mixing concrete in an undeveloped area where no potable water is…

A: We need to determine the tests required to be done to check suitability of water source for concrete…

Q: Subject: Concrete technology Q: a)What are the disadvantages of using calcium chloride in Portland…

A: Portland cement is the most common type of cement that is generally used throughout the world as a…

Q: 635 kg of fine aggregate and 910 kg of coarse aggregate are needed to be mixed for producing 1m3 of…

A: Moisture Content : The amount of water is present in aggregates called as moisture content of…

Q: For the following concrete mix design 1:0.51:1.29:3.6 (P:W:S:G), how much of each individual…

A: Volume of the slab = 5*4*0.2= 4 m3 With extra 5%= 4.2 m3 Total Weight of Materials Used= 4.2*2420=…

Q: Explain pozzolanic reaction with hydration products and its effects on hardened concrete properties

A: Pozzolanic material are siliceous and aluminium material in which themselves posses little or no…

Q: Example select a mix proportional of 28-day compressive strength (measured on standard cubes) of 44…

A: w/c ratio = 0.55 (maximum) Cement Content = 290kg/m3 Water Content = 0.55 Cement Content = 159.5…

Q: How does the increase of maximum aggregate size used in the concrete mix design affect the…

A: We know for best results the gradation should be well graded. For well-graded aggregates, the voids…

Q: desi cubic yard of concrete to have a 0.43 water-cement ratio, 12 kg/m3 of dry gravel, 145 kg/m3 of…

A: Mix design:Water–cement ratio = 0.43C.A =1232 kg/m3 Water content = 145 kg/m3Air content = 4%

Q: what are the effects of alkaline solution on the performance of geopolymer concrete?

A: The geopolymer concrete is the mixture of course aggregate, sand, fly ash and alkaline solution of…

Q: Given the mix design for a 20-liter batch of concrete: 20-liter Batch Materials W (dry), kg W(wet),…

A:

Q: Required maximum dry density for aggregate base course. A 100% B 95% 90% 97%

A: We have to determine maximum dry density for the aggreagte base course.

Q: Assume that you are going to make a three cubic yard (3yd³) of concrete. Create your own mix design…

A: The design strength = 3.8 ksiThe slump should = 3 to 4 in.The maximum size of aggregate = 2 inUnit…

Q: Students in the materials class prepared three mortar míxes with water to cement ratios of 0.50,…

A: Given data: 50 mm cube.

Q: Concrete Compressive Strength test Discussion: If the compressive strength results of your trial…

A: ● Solution:-  Compressive strength of the concrete is determined by cube test in which 3 sample of…

Q: (ASAP PLEASE) Design a concrete mix for the following conditions and constraints using the Absolute…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: a)Explain what is section steel and reinforcement steel? Next discuss the advantages and…

A: (a) Section steel: Section steels are also known as structural steels. Section steels are available…

Q: Discuss on the selection of two (2) suitable admixtures to be used.

A: 80Mpa indicates High strength concrete  Why we need high strength concrete? To construct high rise…

Q: Explain Capping Procedure under Capping Cylindrical Concrete Specimens with Sulfur or Capping…

A: Capping Cylindrical Concrete In order to ensure that the entire end surface receives an equal amount…

Q: 1.2 State 4 factors that can be used to balance the workability of a concrete mix. For each of these…

A: Workability  The amount of energy required to overcome friction while compacting is the feature of…

Types of Concrete

Concrete is the fundamental material used in civil engineering such as building materials for building structures. Concrete is an aggregate mixture of cement, sand, and fine and coarse rock pieces. The cement acts as a binding material that holds the compositions together, sets, and hardens with time. Apart from cement, there are other different types of binding materials used, such as lime concrete, bitumen, asphalt, and so on.