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

A: We will solve this question in step no. 2

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: 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: 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 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: Concrete with a low water/cement ratio is expected to be: A)  Stronger than concrete with a high…

A: Given data: water cement ratio. durability.

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.

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.