amount of water needed

Q: Compute the water/cement ratio needed to obtain no porosity in cement paste which has hydration…

A: Given values: Hydration degree = 75% at no porosity in cement paste.

Q: Practical Part Q4). 1- State the meaning of normal consistency of cement. 2- Which method is widely…

A: Cement  A dry, powdery material known as cement is created by calcining lime and clay. It can be…

Q: Q1) Assume we have 100 gram of cement within a closed tube, so that there is no water movement…

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Q: Please discuss the Determination of Normal Consistency of Hydraulic Cement

A: Consistency The term "consistency" simply refers to something's viscosity or thickness. Water must…

Q: Please discuss the Determination of Time of Setting of Hydraulic Cement by Vicat Aparatus

A: Initial setting time should be less than 30 minutes. Initial setting is the time in which cement…

Q: Why do it needto get the normal consistency of cement?- -How are these values of normal consistency…

A: Since, there are different types of tests which are used to make the strengthful design mix. Normal…

Q: Q1- What is the purpose of using cement-sand mortar rather than cement paste for determining the…

A: Q-1 Using only cement to make mortar has many of problems. Like -  -large amount of shrinking of…

Q: Q2) Calculate the volumes of the hydration products for 150 gm of cement with 0.5 w/c ratio, assume…

A: It is required to determine the absolute volume of dry cement. Vcah=Weight of dry cement is…

Q: choose the correct answer The water/cement ratio needed to obtain zero porosity (Vcp=0) in a fully…

A: Basic concept introduction- Cement requires approximately 23% of the water by weight for its…

Q: For determination of initial setting time use the following data: Time Penetration 30 min 40 mm 40…

A: To find the weight of water required

Q: 6) At a ready-mix concrete plant 65 tons of cement, 190 tons of fine aggregate, 250 tons of coarse…

A: A type of elastic collision in which two objects of equal mass initially move in the same direction…

Q: Just after casting, a cement paste had a porosity of 60%. After 3 months, the porosity was reduced…

A: The cement hydrates in the presence of water. On hydrating the cement begins to harden. It uses up…

Q: Pick all correct statements from the following 1. White cement is similar to normal cement in all…

A: Statement 1 is correct as white cement is similar to normal cement except the fact that it is…

Q: Practical Part Q4). 1- State the meaning of normal consistency of cement. 2- Which method is widely…

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Q: 3. The normal consistency of cement is determined using Vicat's apparatus. In one of the trials, you…

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Q: Q3- In cement setting time experiment, the time versus penetration of the cement paste are shown in…

A: The initial setting time of cement paste is defined as the time from mixing of water to the cement…

Q: -For the concrete mixture design (oven dry) summarized in the table below answer the following…

A: Note: As per our policy for a multipart question only three parts can be solved for other parts…

Q: For 100g cement with w/c=0.5 and the volume of the capillary pores (Vcp ) equal to 40 ml, the degree…

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Q: Answer carefully the following questions : 1-What is the effect on physical properties of cement, if…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A group of students in CETEST24P determined the initial time of setting of “brand X” cement by…

A: Initial Setting Time of Cement: After completely filling the mold, smoothen the surface of the…

Q: the soundness test a specimen of hardened cement paste isfor a fixed time. a) Freeze p) Dry C)…

A: Soundness test is used to check the concrete does not show much change in volume after setting . In…

Q: 12 Ibs of cement was mixed water to get 17 Ibs of cement-water mixture. What is the water-cement…

A: Given, In a mixture Amount of cement = 12 lbs  Cement water mixture = 17 lbs  we have to find water…

Q: Coarse aggregate is not part of standard mortar mixture True O False

A: Mortar is a combination of a binding material and a supporting material. The binding material could…

Q: How much air-entraining agent with a dosage of 50 mL/100 kg should be added to a mix with 8.1 kg of…

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Q: Three mortar mixes were prepared with water to cement ratios of 0.50, 0.55, and 0.60. Three 2-in.…

A: Given: Width of mortar cubes = 2 in

Q: DATA:  Amount of Cement = 650 grams  Amount of Water = 195 grams Calculate the amount of water…

A: Given data: Amount of Cement = 650 grams  Amount of Water = 195 grams   It is asked to Calculate…

Q: Determine the volume of the products of hydration and gel/ space ratio for a mix contains 125 gm…

A: Cement quantity= 125 gm Water quantity= 35 ml Hydration took place in sealed specimen. We have to…

Q: The consistency of the standard paste test is carried out to O A. Determine the W/C which will…

A: Concrete need protective layer to be durable in harsh environment. Normal Consistency =>When…

Q: Pick out the correct statements from the following (Note: there may be more than one correct…

A: Cement with greater specific surface area set faster than lower specific surface area cement.  So…

Q: determine the mass of water needed to be added to the cement to achieve the standard consistency of…

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Q: What is water cement ratio? Compute the value of water cement ratio in the mix. Answer with 2…

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Q: Calculate the amount of water required for normal consistency to the nearest 10 percent and report…

A: solution: Given: Time  Penetration (mm) 30 min 40 40 min 34 50 min 20 60 min 15

Q: Determine the amount of water needed to achieved the normal consistency of 650 grams cement by using…

A: Given data: Wt. of cement=650 gms Rod penetration=10 mm Time taken=30 sec   It is asked to…

Q: Answer Are the answers correct please. Is the fineness of quick-dry cement much greater than that of…

A: Introduction : OPC has been used as a concrete binder and for various building materials all over…

Q: Q1) Assume we have 100 gram of cement within a closed tube, so that there no water movement occur.…

A: A. 100% hydration of cement:   1. Weight of dry cement actually hydrated: Wcah=100 g 2. Volume of…

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.