You have been asked to pour a concrete block that is 3’ (L) x 3’ (W) x 3’ (D). how may Cubic Feet (CF) of concrete do you need

Q: What exactly is geopolymer concrete?

A: Concrete is a mixture of binding material like cement, lime with well graded coarse and fine…

Q: What is the strength of cement?

A: The material which when mixed with water sets and hardens is known as cement. It is usually merged…

Q: Self-healing concrete.  Explain why that strategy and how it can help in the product development…

A: Strategy behind self healing concrete,

Q: Comment and write what needs to be done to increase workability in fresh concrete.

A: Workability is the ease with which concrete can be mix , transported , placed , compacted and…

Q: List the differences between bricks and cement.

A: Bricks                             Cement Blocks Solids…

Q: Q#1. Define Durability? Explain the physical and chemical causes of inadequate durability. (CLO2) a:…

A: In civil engineering, the building materials are used according to their properties such as…

Q: What is the stress in a concrete cylinder 4 inches in diameter if it is supporting a load of 20,000…

A: Load applied, P = 20000 lb Diameter of cylinder, d = 4 inch Required:Stress in cylinder

Q: Discuss the concept of high-performance concrete. Discuss some of its properties that make it…

A: - High performance concrete (HPC) is a type of concrete engineered to be stronger and more robust…

Q: How do engineers weigh concrete inside the container?

A: The binder paste which is prepared by mixing of cement ,fine aggregate, coarse aggregate and water…

Q: Describe the difficulty of designing a concrete mixture and the necessity of compressive strength.

A: The concrete mix design is important for any concrete structure. Various factors are involved in…

Q: define the “shrinkage” problem for reinforced concrete members. What are the structural results of…

A: Shrinkage is defined as  "shortening of Concrete due to drying". This causes extra stresses in the…

Q: How does the innovation of fiber reinforced concrete provides advancement in the construction…

A: Fiber reinforced concrete is light in weight as a result dead load of the structure reduced  The…

Q: A concrete masonry unit has actual gross dimensions of 7-5/8” * 7-5/8” * 7-5/8”. The unit is tested…

A: (a) It is required to determine whether the unit is hollow or solid: Gross volume (V)…

Q: What variables contribute to concrete shrinkage?

A: Concrete has shrinkage property due to presence of cement. Due to loss of moisture from concrete by…

Q: How many cubic yards of aggregate must be ordered for a road base 16 inches thick and 2 miles long…

A: The thickness of the road base = 16 inLength of the road = 2 milesThe top width of the road = 30…

Q: A concrete masonry unit has actual gross dimensions of 190 mm * 190 mm *190 mm. The unit is tested…

A: Given, Net volume = 5125 cm3 Maximum failure load = 370 kN It is required to determine the net…

Q: What types of fibers are used in the production of fiber-reinforced concrete?

A: Following  are the various types of fibres used in fiber reinforced concrete  (FRC) production. 1.…

Q: (a)What are the broad types of admixtures? (b)How would you improve the bond of fresh concrete to…

A: Introduction: Admixtures are materials other than water used in the concrete mix to enhance its…

Q: How do engineers mix concrete in a mixer?

A: Brief concept- Concrete- It is a mixture of fine aggregate, coarse aggregate, cement, and water.

Q: What is the difference between cement and concrete?

A: Cement: A cement is a binder, a substance used for construction that sets, hardens, and adheres to…

Q: In the context of concrete structures, what is shrinkage? How does it occur? Discuss the factors…

A: Shrinkage:-  The decrease in either length or volume of material results from changes in moisture…

Q: Calculate the weight of cement, fine aggregate (sand), coarse aggregate (rock) and gallons of water…

A: Given Data: pad dimensions=5ft×5ft×5inmix=1:2:4w/c=0.50 The maximum coarse aggregate size as per…

Q: 1b. Discuss some of the factors that affect strength of concrete on construction project site.

A: 1 b. The mixing of cement, water, aggregates and some admixtures in a particular proportion results…

Q: How many pounds of concrete (specific weight=18 kN/m3) must a beam of the volume of 0.2 m3 and…

A:

Q: You perform three replicate tests on typical 6x12” concrete cylinders at 28 days and get the data…

A: given  compression test, peak load values  127260 lbs 129300 lbs 128710 lbs Split tension test, peak…

Q: Explain what a concrete mix design is.

A: Since the concrete is mixed according to the desirable strength. Thus there are different types of…

Q: A hollow concrete masonry unit has actual gross dimensions of 3 in. X 31 in. X 3 in. (width x height…

A: Given, Gross dimensions=3 in. X 31 in. X 3 in. Failure load P=203 kips Net volume nnet=331 cubic in…

Q: an you explain the steps in Rapid Method of Concrete Mix Design? Tha

A: The Rapid Method of Concrete Mix Design is also called the Accelerated Method and it determines the…

Q: Why do we need lean concrete

A: Lean concrete is a mix where the amount of cement is lower than the amount of liquid present in the…

Q: Provide examples for Reinforced Portland Cement Concrete.

A: Reinforced Portland cement concrete consists of reinforcement , Portland cement , sand and coarse…

Q: what could be the benefits of putting egg on a concrete mixture? Can you give some explanations and…

A: When combined with concrete, eggshells are proved to possess strength characteristics.

Q: Q4- The following information is obtained from the strength test carried on concrete cubes of shown…

A:

Q: Subject: Concrete technology Q#1: a) What are the broad types of admixtures?  b) How would you…

A: (a) There are 2 broad types of admixtures: Chemical admixtures Mineral admixtures Chemical…

Q: 1. A normal-weight concrete has an average compressive strength of 4500 psi. What is the estimated…

A:

Q: You see the concrete looks dry as it is being placed as a slab. a) If you decide to spray some…

A: If the concrete is not set yet, then concrete is still in form of fresh concrete. By spraying extra…

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.