question and answer for cement grinding process

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k g / m 3. kg/m^3 kg/m3. View Answer. Q6. The condition not applicable to water cement ratio law, is. 1 internal moisture conditions on hydration continue till complete strength is gained. 2 concrete specimens may be tested at any temperature. 3 concrete specimens need be of same age. 4 concrete specimens need be of same size.

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Grunting is a kind of process in which a mix of cement & sand is in the proportion of 1:3 is shouted on a concrete surface with the use of a cement gun under the pressure of 2 to 3 kg/cm2. It is a process with high effectiveness maintained …

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Concrete Questions and Answers - CEMEX USA - CEMEX

Concrete is used for the finished products, such as sidewalks, foundations, and the surface of many roads. Concrete contains sand, gravel and cement. Cement is the special hardening ingredient (the gray powder) that makes concrete harden. Cement is usually made of 60% lime (limestone), 25% silica, 5% alumina, and 10% other materials, such as ...

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Answer : Lime stone and clay are ground to fine powder separately and are mixed together. Water is added to make a thick paste which contains 14% of moisture. The paste format are dried and off charged into a rotary kiln. The product obtained often calcination in rotary kiln. Process

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Answer. In general, increasing the cement content increases the strength. As cement content increased above a certain point, the following problems may arise in the concrete: 1. Excessive ...

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(A) The degree of grinding of cement, is called fineness (B) The process of changing cement paste into hard mass, is known as setting of cement (C) The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement (D) The heat generated during chemical reaction of cement with water, is known as heat ...

About Question On Cement Mill

Question and answer for cement grinding process. question and answer for cement grinding process. Question Bank Metal Trades Technology GIZ Throughout this Question Bank multiplechoice questions have been used, as only this type of questioning allows for a high assessment is the fact that only one of the given answers is correct.

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The process followed for making cement is first limestone and clay are crushed and are mixed in a mixer to properly combine them together, after that the mixture is then heated in a rotating heater once this process is completed the final step is grinding and then finally cement is ready to use.

Cement & Concrete Basics FAQs

Concrete is a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Through a process called hydration, the cement and water harden and bind the aggregates into a rocklike mass.

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ANSWER. Concrete technology MCQ. 4. The workability of concrete is defined as the. (a) ease with which it can be mixed, transported and placed in position in a homogeneous state. (B) breaking up of cohesion in a mass of concrete. (c) separation of water or water-cement mixture from the freshly mixed concrete.

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Multiple Choice Questions on Concrete Technology - Set 07 ... Practice Test: Question Set - 07. 1. Finer grinding of cement (A) Affects only the early development of strength (B) Affects only the ultimate strength (C) Both (A) and (B) (D) Does not affect the strength ... Multiple Choice Questions with Answers on Refrigeration and Air ...

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A good general rule to use is the rule of 6's: A minimum cement content of 6 bags per cubic yard of concrete, A maximum water content of 6 gallons per bag of cement, A curing period (keeping concrete moist) a minimum of 6 days, and. An air content of 6 percent (if concrete will be subject to freezing and thawing).

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The production process for portland cement first involves grinding limestone or chalk and alumina and silica from shale or clay. The raw materials are proportioned, mixed, and then burned in large rotary kilns at approximately 2500°F until partially fused into marble-sized masses known as clinker.

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Q.1) Portland Pozzolona Cement is manufactured by grinding Ordinary Portland Cement clinckers with Pozzolanic materials like fly ash, volcanic ash etc. and also with …. View the full answer. Transcribed image text: Why are Portland-pozzolan cements important? Answer not less than 100 words. Indicate the number of words after the answer.

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Many other policy reforms led the cement industry to expand in capacity, process, technology and production. Today, there are 128 large plants and 332 mini cement plants in the country, producing variety of cement. Question 49. Why does Indian cement have a large demand in the international market and whom do we export to? Answer:

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Early attainment of strength in rapid hardening cement is mainly due to (A) Gypsum (B) Finer grinding (C) Tri-calcium silicate (D) Tri-calcium aluminate. Correct Answer. 8. Pick up the correct statement from the following: ... Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. Practice Test: Question Set - 07 ...

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TWO MARKS QUESTIONS AND ANSWERS UNIT-I CONCRETE TECHNOLOGY ... Cement is a substance which acts as a binding agents for materials .It is obtained by burning the mixtures of calcareous material such as lime stone and argillaceous materials such as ... Wet process 2. Burning 3. Grinding 7. What are the various type of testing for cement? a) Field ...

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costs for cement, it is very important to optimise the existing grinding installations. Experience has shown that the potential for optimisation is greatest in the cement grinding process in a cement plant The benefits that can be achieved due to the optimisation of cement grinding system through process diagnostic study are:

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If you find any question or answer is incorrect or incomplete then you can submit your question or ... the numbers to be most cement industry. The whole process of cement production line summarized as 'two ground a burn,' with 'a burning,' is made by grinding good raw material, in the high temperature of kiln under the action of the process of ...

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Cement mills Question 2. What would be the recommended ball charge and combination to produce masonry cement at 6000 cm 2 /g. the component percentage are clinker= 50 per cent, limestone=45 per cent, gypsum=5 per cent. I tried researching on this, but the suggested ball charge and combination would always refer to OPC at 3000-3200cm 2 /g. We are still in the …

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Find 7 questions and answers about working at Cement Industry. Learn about the interview process, employee benefits, company culture and more on Indeed.