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Cement used for normal concrete construction, is obtained by burning a mixture of (A) Siliceous and argillaceous materials (B) Argillaceous and calcareous materials
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Cement grinding and packing process - Al badia cement Cement grinding and packing process. The clinker is ground with an amount of gypsum to a fine powder in order to regulate the setting time of cement and to gain the most ... Shareholders · Key figures and results · Questions and answers.
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6. Work men handling cement should be provided with goggles, rubber gloves and rubber boots by nose mask. 7. The moving parts of grinding machines used construction site should be covered with guards 8. The moving parts of grinding machines used construction site should be covered with guards 9. Excavated material should not kept near the ...
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250+ Concrete Technology Interview Questions and Answers, Question1: What are all the types of cement? Question2: Differentiate dry process and wet process of manufacturing cement? Question3: Define batching, what are all the methods of batching? Question4: What are all the raw materials of the cement? Question5: Write notes on steam curing?
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Grinding machine | Interview Question and Answers. Grinding machine | Interview, VIVA,Oral Question and Answers. 1.What is meant by Grinding? Grinding is a metal removal process or operation performed by means of rotating abrasive wheel that acts as a cutting tool against the work piece. 2.Why is grinding called finishing process?
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49.The degree of grinding of cement is called (a)Fineness (Ans) (b)Soundness (c)Impact value (d)Bulking. 50.The hardening is the phenomenon by virtue of which (a)The cement does not undergo large change in volume when treated with water (b)The plastic cement paste changes into hard mass (c)The cement paste sets and develops strength (Ans)
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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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Questions received from proposers along with answers are attached. Proposals/bids must be received no later than 2:00 pm, on Tuesday, December 22, 2015. All responses must be in a sealed envelope and have "Concrete Grinding or Shaving" and Specification 6-10985-C RE-BID clearly marked on the outer most mailing envelope.
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mechanical engineering objective type questions – Grinding Mill …. posted at: august 14, 2012. mechanical engineering objective type …mechanical engineering objective type question and answer — 3rd ed., 2012 — gupta .o.p. —… »More detailed
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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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(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 ...
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TOP 20 BASIC CIVIL ENGINEERING INTERVIEW QUESTIONS AND ANSWERS 2020 Q.1) What is the Unit Weight of concrete? As per IS: 456-2000 Unit weight of Plain cement concrete is 24KN/m3 and Reinforced cement concrete is 25KN/m3 Q.2) Which is the world's tallest man-made structure ?
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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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In the manufacturing process of cement, clinkers are formed. These cement clinkers are cooled down and added with a small amount of gypsum. The mixture then sent to the final grinding process. For ordinary Portland cement, it remains between 3 to 4% and in the case of Quick setting cement, it can be reduced up to 2.5%. Purpose of gypsum in cement:
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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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GRINDING Multiple choice Questions :-. 1. Following is an abrasive cutting. 2. Grinding is best suited to the machining of. 3. Following process (es) is (are) subset (s) of grinding. 4. The work holding device in surface grinding is known as.
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Answer: The process of removing rust dust, dirt, scales and old prints from the old surface using compressed air is called sandblasting. ... Question 27: What Is Grinding? Answer: A Grinder is a portable machine with a wheel guard in position to reduce the danger. ... Work men handling cement should be provided with goggles, rubber gloves and ...
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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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Concrete Technology Objective type Questions and Answers. Dear Readers, Welcome to Concrete Technology Objective Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Concrete Technology MCQs.These objective type Concrete Technology …
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Ball mill is the most popular cement grinding machine used for grinding cement into powder in process line. Ball mill is an excellent tool to select mine or grind a … question and answer for cement grinding process in south …
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a) Expanding cement. b) High alumina cement. c) Blast furnace slag cement. d) White cement. Answer: c. Clarification: Blast furnace slag cement is obtained by combining slag and cement clinkers. These have less heat of hydration and are not affected by sea water. Hence, can be used for marine structures.
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QUESTION 8. A. Apart from ordinary Portland cement, describe two other cements both in use and manufactured. ANSWER (i) Rapid Hardening Portland Cement: This is made by mixing together chalk or limestone, with clay or shale, heating them to a clinker and grinding them to finer powder than that for ordinary Portland cement.
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The concrete temperature and the slumps are two strong indicators of the inspector's knowledge. A slump between 75mm and 125mm is normal for normal pours. The maximum allowed temperature for concrete when arriving at the project site is …
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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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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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8. Which of the following is a rock ? a) quartz b) mica c) gypsum d) none of the above Ans: c 9. Based on the following rocks and minerals, select the correct statement, quartz, shale, basalt, granite, marble, gypsum, mica