You have inherited the formwork from another project and it can handle 900 psf of pressure. You are in a location where it will often be 45°F during concrete placement. You need to use the formwork to put up 9-foot-high walls. Standard concrete will be used. What maximum placement rate R can be used so that the formwork can be reused?

Q: What effect does the kind of cement have on the strength of concrete? Prepare your justifications by…

A: Introduction: Cement is a binding agent used with aggregates and other ingredients to produce…

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

A: Strategy behind self healing concrete,

Q: How can fine pozzolans reduce bleeding of fresh concrete?

A: Bleeding: A phenomena in concrete in which the free water available in the mix rises to the top and…

Q: Define about the problems related to the use concrete of very high strength exceeding 60MPa?

A: Solution: If we have to increase the strength of concrete just from 40 Mpa to 80 MPa, it will…

Q: Is it possible to mix concrete using fine aggregates?

A: The given Question is, whether it is possible to mix the concrete using fine aggregates....  Well,…

Q: The design engineer specifies a concrete strength of 5575 psi. Determine the required average…

A: Given, Specifies  concrete strength = f'c=5575 psi

Q: What is lightweight concrete? What are Nonstructural applications  of lightweight concrete ?

A: Lightweight concrete  Light weight concrete can be defined as type of concrete which includes an…

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: how many curing days required for 28-day concrete strength?

A: When coarse, fine aggregate, cement and water are mixed in a proportion corresponding to the…

Q: What are the alternatives available to conventional concrete? Explain them in detail.

A: Concrete is most widely used material in world for construction purpose due to its properties.Due to…

Q: What is the source of fly ash? Why is fly ash sometimes added to concrete?What are the different…

A: The main source of Fly ash is coal as produced as a by-product from the coal industry. The burning…

Q: What problems are likely to occur if concrete has too low a slump? Too high a slump? How can the…

A: What problems are likely to occur if concrete has too low a slump?   Concrete with a low slump has a…

Q: Explain the differences between pre-stressed and nonpre- stressed pre-cast concrete units?

A: Introduction: This question tells about the differences between pre-stressed and nonpure- stressed…

Q: How could you say precast concrete is considered as energy efficient?

A: Precast concrete -  Precast concrete are the construction product that are designed in the specific…

Q: a) Explain the difference between workability and consistency. (Giving the definitions is not…

A: As per our guidelines we are supposed to answer first question only so please repost other as…

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: Where does fly ash come from? What is the purpose of using fly ash in concrete? What are the many…

A: Fly ash is produced by plants which use coal for the generation of  steam and electricity. The coal…

Q: Why is it that more water is bad for new concrete but excellent for concrete that has reached its…

A: Add water to the cement. When determining the concrete's strength, the ratio is critical.

Q: Explain the differences between pre-stressed and nonpre-stressed pre-cast concrete units?

A: Prestressed concrete units are done by casting concrete in pre-assemble forms along with rebars and…

Q: Proposed Methodology for Green concrete ?

A: Answer:- Green concrete:- A concrete which uses waste matter at least one its component, or its…

Q: What cost advantages may be obtained from the use of fiberreinforced concrete?

A: Fiber reinforced concrete is a conctete containing  fibrous material . Their are different type of…

Q: What are the properties of Self-Consolidating Concrete?

A: Solution: Self compacting concrete is that concrete that flows under its own weight that do not…

Q: Adding an air entrainment agent to concrete would introduce more air to concrete, which would reduce…

A:

Q: Define the abaqus method for modeling reinforced concrete.

A: When modeling the concrete in most of the situations we probably needed to define the steel…

Q: Why is it that more water is bad for new concrete but excellent for concrete that has reached its…

A: Water is a huge component of concrete as it viably participates in the compound reaction with…

Q: Determine the reinforcement ratio for a concrete with the following specifications: f'c =5000psi, 18…

A:

Pricing Concrete Work

The concrete work in a project usually holds a high-end cost in terms of cost and value of the work. It becomes an important step in calculating the cost associated with concrete while preparing the project scale. The cost of making concrete depends on the cost of building materials, mixed materials, labor, and machinery. A concrete contractor builds structures from concrete, usually managing all the steps of the process from assembling ingredients to building a holding structure and preparing the mixture. This person or team oversees the delivery and unloading of goods to ensure that they are done properly. Nowadays, most of the concrete in the United States comes from manufacturers working abroad, usually with branches and plants within the provinces. Contributions can range from pre-mixed concrete to basic ingredients, the consumer company then mixes it. Many American-based concrete companies, however, offer concrete products, such as ballads, bricks, countertop, concrete pipe, and building products, as well as concrete construction and installation materials. This article covers both types of suppliers for this set of building materials.