For determination of initial setting time use the following data: Time Penetration 30 min 40 mm 40 min 34 mm 50 min 20 mm 60 min 15 mm Calculate the amount of water required for normal consistency to the nearest 10 percent and report it to the nearest 50 percent of the weight of dry cement. Weight of water reguired (grams) (100%) Weight of cement comple (650 grama) N.C-

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…

A:

Q: Write any five difference between Ordinary Portland Cement and Pozzolana Portland Cement

A: Ordinary Portland Cement (OPC): A blend of limestone and raw materials, such as gypsum,…

Q: 6-What is the range value of compressive strength for normal concrete 7 days and 28 days?

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: While measuring the abrasion value of sub-base aggregates category E sample was taken having dry…

A: Abrasion value is given by: AV=W2W1×100 Where, W2 = Weight of aggregate passing 1.7 mm sieve W1 =…

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: Sieve size (mm) 10 5 2.36 1.18 0.6 0.3 0.15 0.075 Wt. retained (g) 0 7 30 33 62 98 55 18 Retained…

A:

Q: A sample of coarse aggregate was tested in a laboratory to find its moisture content. The wet weight…

A: Dry weight=5235.1gmWet weight=5403.5gmMoisture content=Wwet-WdryWdry×100Free water=MC-Absorption

Q: Grade of Specimen Mass of specimens (g) concrete 7 days 14 days 28 days Air Water Air Water Air…

A: We know, Density=MassVolume Here, volume = 100 x 100 x 100 = 106 mm3 = 0.001 m3  The density is…

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: Three samples of fine aggregate have the properties shown below. Determine in percentage: (a) total…

A: MeasureSampleABCWet Mass (g)521.0522.4523.4Dry Mass (g)491.6491.7492.1Absorption…

Q: 6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is…

A:

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.