How does the excessive presence of silt harm the strength of concrete? Is the fine aggregate suitable for making concrete?

Q: What is workability of concrete, curing of concrete?

A: Workability of concrete is defined as the property of concrete that determines the amount of useful…

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

A: Strategy behind self healing concrete,

Q: A batch of concrete consisted of 200 lbs fine aggregate (sand), 400 lbs coarse aggregate (gravel),…

A: Weight of fine aggregate, coarse aggregate, cement and water with their relative density have been…

Q: A batch of concrete consisted of 200200 lbs. fine aggregate, 350350 lbs coarse aggregate, 9494 lbs…

A: Given Data: Weight of fine aggregate=200 lbs Weight of coarse aggregate=350 lbs Weight of cement=94…

Q: If you were a materials engineer in Ladakh, India (cold climate) and could use only one type of…

A: In cold climates like Ladakh, antifreezing admixture is to be used to reduce the freezing effect on…

Q: As a material engineer  in the field warehouse how will you test or check the cement delivered on…

A: On site cement is tested using simple  ways like  Texture of cement should be smooth  Should be…

Q: Reinforced concrete water storage tanks are going to be used to hold water wit high salinity and…

A: The durability is the important property of concrete, as the durable concrete can be used against…

Q: You are required to pour concrete for a foundation. Closely meshed steel reinforcements are placed…

A: Foundation is generally a unit of a structure that supports and anchors the superstructure of a…

Q: Which material is suitable to use for the structure in terms of economy, quality and structural…

A: In terms of economy concrete is cheaper than steel. In terms of quality, steel is better than…

Q: why unit weights of aggregates will allow the contractors to meet their construction requirements?…

A:

Q: What do you mean by the workability of concrete and why do we need workable concrete and how various…

A: Workability of concrete  Workability of concrete is defined as the how easily a mixture of fresh…

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: What is the importance and role of moisture content in the construction material utilization?…

A: It is very important to determine the moisture content of the construction material for following…

Q: What do you mean by the workability of concrete; why do we need workable concrete? (b)How various…

A: Workability is defined as amount of water required to produce full compaction in concrete. We need…

Q: What Item No. is "Aggregate Surface Course" in the DPWH Standard Specifications for Highways,…

A: Department of public works and Highways deals construction  of highways, bridges and airports under…

Q: What materials are most suitable for the construction of an embankment shell of a dam? Put into…

A: Solution: The embankment Dam cross section basically shows the shape of a bank or hill. They have a…

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: Can a natural fiber become an additive in concrete to improve its performance? Why?

A: Yes, a natural fiber can be an additive in concrete to improve its performance why because Fibres…

Q: Kindly describe the term "shrinkage" as it pertains to reinforced concrete members. What are the…

A:

Q: Why is it important to carry out the granulometry test on the aggregates that are going to be used…

A: The granulometry test is one of the most important tests performed on the site. The main objective…

Q: Is it necessary to still perform curing test up to its 28 day even though it has reached the desired…

A: We know that curing is the process to apply water to concrete for the completion of chemicals…

Q: State the proper procedure for filling the concrete cylinder? B. If the peak load of concrete…

A: answer1- procedure for filling the concrete cylinder- 1.first take the cylindercal shape molds…

Q: 50 cubic feet of 2:2-1/2:4 (by weight) concrete are to be produced. The constituents have the…

A: - Volume of concrete = 50 cu ft Air entrapped = 5 % - Volume of concrete without air  = 50 - 0.05…

Q: A cement grinding mill “A” with a capacity of 50 tons per hour utilizes forged steel grinding balls…

A: Given:- The capacity of cement grinding mill "A" = 50 tons per hour The cost of forged steel…

Q: find the aggregate specifications for Oman or GCC countries and identify the limitations for…

A: Brief Concept Revision: Aggregate: The materials such as gravel, stones, pebbles, sand which are…

Q: What do you mean by the workability of concrete; why do we need workable concrete? b)How various…

A: Workability of concrete It is defined as the amount of work to produce full compaction. Workable…

Q: The probability of the concrete cubes to pass the compressive strength test for a concrete company…

A: Given: The probability of concrete cube to pass the test (p)is 0.4. Number of cubes (n) =5 The…

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: What is the w/cm ratio of concrete produced using 225 kilograms of portland cement, 75 kilograms of…

A: solution  given  225 kg of cement  75 kg of fly ash  the mixture of fly as and cement is called…

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: How important is the moisture content in construction material utilization?

A: Brief concept introduction- Moisture content- It is the amount of water that is present in the…

Q: Q1. What do we mean by curing concrete? What will happen if concrete is not cured?

A:

Q: 1.1 What is definition of segregation in fresh concrete? Given some examples of segregation. 1.2…

A: Segregation of concrete is defined as the non uniform mix which was obtained by the separation of…

Q: Why the use of chloride compounds in steel-reinforced concrete is discourage by the concrete…

A: Concrete is an artificial homogenous mixture that contains cement, sand aggregates in addition to…

Q: How the GGBS will affect the performance of geopolymer concrete? How the metakaolin will affect the…

A: Answer:- Geopolymer concrete: It is a type of concrete which is made by reacting aluminate and…

Q: A structure is to be built with concrete with a minimum dimension of 0.2 m, minimum space between…

A: Given:- minimum dimension=0.2mm minimum space between rebars=40mm minimum cover over rebars=40mm Two…

Q: What are the important parameters monitored in cement production? What are the raw materials needed?

A:

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

A: Following are the tests would be performed to evaluate the suitability of the water for concrete…

Q: What do you mean by the workability of concrete; why do we need workable concrete? b) How…

A: Amount of water required to produce full compaction is called as workability of concrete. We need…

Q: Which brand of Cement  is good Quality Mabuhay Brand or Republic Brand ?  2. As a Quality Civil…

A: Solution: 1.  The Republic Brand produces good quality Cement in comparison to Mabuhay Brand.  The…

Q: Q1: Give the reason for the following sentence? 1. The organic matter and alkalis (MgO, K,O) are…

A: 1: Organic matter and alkalis (MgO, K2O) are harmful ingredients in clay bricks. 2: The compressive…

Q: Why is it necessary to measure the air content of concrete at the job site rather than at the batch…

A: It is necessary to measure the air content of concrete at the job site rather than at the batch…

Q: You are building a structure in Arizona during the summer. You notice that the aggregate stockpile…

A: Introduction- A bulk material stockpiling is a mound or store site for bulk materials that is used…

Q: How various properties of aggregates affect workability of concrete? b) If the peak load of…

A: Properties of aggregate  affecting workability are : Size of Aggregate The bigger the size of the…

Q: A structure is to be built with concrete with a minimum dimension of 0.2 m, minimum space between…

A: The given data is shown below: Minimum dimension of concrete structure=0.2 mMinimum space between…

Q: esults. ) The level of “Quality Control" for the produced concrete.

A: (C) Introduction : Concrete's durability can be characterised as its capacity to withstand…

Q: Give example of the type of cement used for the construction of a dam and repair of a bridge ?…

A: The cement that has to be used in dam construction must have the property of water-repelling. The…

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 improve its…

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.