Cement paste of standard consistence is used for this test. Cement Hydration. The production of cement involves a 5 stage, linear process that begins with … Vicat apparatus is used, but the plunger is replaced by the steel needle in the form of a right cylinder of effective length 50 ± 1 mm and diameter 1,13 ± 0,05 mm. Question4: What are all the raw materials of the cement? White cement, as the name indicates, is a kind of cement with white color. What is the meaning of soundness of cement? Meaning of 43 grade cement: It means that, this type of cement shows minimum 43 N/mm 2 compressive strength after 28 days complete curing, when tested on CTM. This formed the cementing material of the Roman mortars and concretes of more than 2,000 years ago and of subsequent construction work in western Europe. Plastering Removing old plaster and underlying cement. This set of Basic Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Cement”. This set of Basic Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Cement”. Which of the following cement type is used in High-Temperature applications? View Answer, 3. I have been advised by a conservation surveyor to remove gypsum plaster and any underlying cement from 2 internal living room walls. Airport-Related Cement Consumption Outlook, July 2017; U.S. Cement Manufacturing Capacity, February 2017 "The Wall" Impact on Cement Consumption, February 2017; Stronger Sentiment, Higher Interest Rates, January 2017; State Highway Paving, January 2017; Monitor Outlook Plus; Construction InVue; More Reports. a) True Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. b) 33-35 mm from top of the mould To practice all areas of Basic Civil Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers. a) Ability to flow when mixed b) Standard consistency is not met with View Answer, 9. c) The colour should be blackish grey The weight percentage of Tricalcium silicate in OPC is nearly, Please enter your mail id to get the correct answers on your mail. a) William Aspdin, 1824 ← Prev Question Next Question → Request Answer. All Rights Reserved. Visitors to this site are encouraged to offer their expertise if they see a question they have a solution to or have had success using a product to fix a concrete related problem. 10 June 2020. a) Green coloured cement Which of the below mentioned is not a result of field test performed on cement? The Asks very basic questions related to your stream. They asked me about the ac motors and induction motors Answer Question; Ambuja Cements 2019-08-20 02:40 PDT. Standard type Twin Shaft Concrete Mixer JS3000. Ultra-rapid hardening cement. The automobile industry is a differentiated oligopoly. This Glossary of terms used in cement, concrete cement analysis is available for free download. A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Ask a tradesman. Wet cement can cause severe skin burns if not washed off with water immediately. Ordinary Portland Cement. Use of coarser cement particles leads to: Question2: Differentiate dry process and wet process of manufacturing cement? Here you can ask a question about anything related to concrete. Some of the most common cement classifications are: 1. Choose the correct answer from the following MCQ. The stone is crushed and kilned, or “calcined”, which releases CO 2 and leaves “quicklime”, calcium oxide (CaO). Why is natural cement used very limitedly? 1. Answer The diagrams illustrate the phases and apparatus to make cement and how cement is utilised in the production of concrete for construction. a) Brown in Colour Sánchez de Rojas Gómez, M. Frías Rojas, in Eco-Efficient Concrete, 2013. View Answer, 8. d) 100 microns cement multiple choice questions and answers . Cement - Cement - History of cement: The origin of hydraulic cements goes back to ancient Greece and Rome. Special Issue : Keynote Papers of International Conference on Cement Chemistry 2019, Prague. b) William Aspdin, 1840s d) 30 hours Read below some important questions on cement which all are based on multiple choice answer ( mcq ) d) Absolute setting time View Answer, 6. b) 30 minutes View Answer, 11. Cement PDF Format: ", The role of the pozzolan in Portland Pozzolan Cements are to. I want to do a shed base of 7 sq metres and 4" deep. c) 33-35 cm from top of the mould Dental cement is normally used for a variety of dental and orthodontic procedures like, cavity lining material, to form a layer under metallic or ceramic restorations, to help protect the pulp from any injury, and fix inlays or onlays or any substance related to the dentin or enamel of a person’s tooth. Since that time, a number of developments and improvements have been made in the production process and cement … The cement used by the Romans, as well as pretty much all cement used since the Industrial Revolution, uses different chemistry. Share this: Click to share on Twitter (Opens in new window) Click to share on Facebook (Opens in new window) Related. a) There should not be any lumps here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Basic Civil Engineering Questions and Answers – Calcination and Slaking of Lime, Next - Basic Civil Engineering Questions and Answers – Ingredients of Cement, Basic Civil Engineering Questions and Answers – Calcination and Slaking of Lime, Basic Civil Engineering Questions and Answers – Ingredients of Cement, Genetic Engineering Questions and Answers, Electronics & Communication Engineering Questions and Answers, Mechanical Engineering Questions and Answers, Electrical & Electronics Engineering Questions and Answers, Electrical Engineering Questions and Answers, Concrete Technology Questions and Answers, Instrumentation Engineering Questions and Answers, Highway Engineering Questions and Answers, Fluidization Engineering Questions and Answers, Aeronautical Engineering Questions and Answers, Best Reference Books – Technology, Engineering and Sciences, Agricultural Engineering Questions and Answers, Aerospace Engineering Questions and Answers, Chemical Engineering Questions and Answers, Basic Electrical Engineering Questions and Answers, Civil Engineering Drawing and Estimates Questions and Answers, Engineering Chemistry Questions and Answers – Construction Material Cement. Which equipment is used to test the setting time of cement? Sanfoundry Global Education & Learning Series – Basic Civil Engineering. 2. The South American cocaine industry consists of several ‘‘families’’ that obtain the raw material, refine it, and distribute it in the United States. 6 answers. d) Higher soundness Meaning of 53 grade cement: It means that, this type of cement shows minimum 53 N/mm 2 compressive strength after 28 days complete curing, when tested on CTM. Any drying weakens the reaction so concrete that sets underwater can be stronger than concrete that sets in air. Civil PowerPoint Presentations | Civil ppts, Join CivilDigital WhatsApp Groups | Civil Engineering WhatsApp groups, Strength of Materials – Quiz and Interview Questions, Concrete and its Properties – Take a Quiz for Interview, Repair Techniques for Cracks in Concrete – Crack Repair, Design of Trickling Filters & Common Operational Issues, Types & Purpose of In-situ Rock Tests for Foundation Design, Interview Questions for Structural Engineers Part A, 20 Applications Artificial Intelligence in Civil Engineering & Construction, Home Construction Quotes: Where to Get Them, Irrigation Engineering Quiz Part A – Interview Questions. d) Joseph Aspdin, 1824 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. We hope you find it useful - please do distribute it freely to any colleagues who may also benefit from it. Question5: Write notes on steam curing? Through a process called hydration, the cement and water harden and bind the aggregates into arocklike mass. View Answer, 12. Set alert . Rapid hardening cement, 3. Portland cement concrete is a composite material made by combining cement, supplementary cementing materials, aggregates, water, and chemical admixtures in suitable proportions and allowing the resulting mixture to set and harden over time. Why? Question3: Define batching, what are all the methods of batching? Since that time, a number of developments and improvements have been made in the production process and cement properties. 4.4.1 Heat of hydration. View Answer, 10. Please enter your mail id before submitting to get the correct answers on your mail. It is the same as ordinary gray Portland cement except with respect to color and fineness. d) It should not be gritty when rubbed with finger The Following Section consists of Multiple Choice Questions on Concrete Technology. Solution for A concrete mix includes the following ingredients per cubic meter: Cement = 300 Kg Water = 150 Kg %3D No admixture If a water reducer is added to… b) 45 microns The total mass of moving part is 300 ±1 g. Procedure calibration of Vicat apparatus with the needle is the same as for the apparatus with the plunger. c) Low consistency Portland cement was named for the Isle of Portland, a peninsula in the English Channel where it was first produced in the 1800’s. Figure 2-2 Electric Energy Intensity Comparison 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 CA Cement US Cement CA Mfg US Mfg GWh /production worker kWh per $ value added Sources: Utility Billing Data, CEC Forecast Database, 1997 Economic Census, 1998 MECS . a) 15 microns b) Higher strength #Civil #Engineering #Building #Materials #Cement In this video you know about the basic knowledge of Cement. c) 15 minutes b) False M.I. What is the average particle size of cement? After the clinker cools, gypsum is added, and both materials are ground into a fine powder which is portland cement. Quiz on Cement and Manufacture of Cement. cement industry is slightly more electricity intensive that the U.S cement average. Download as PDF. Expansive cements were developed to prevent severe cracking may occur as a result of the shrinkage. How much cement and sand do i need for a 7 sq metres shed base. What is the initial setting time of cement? d) Ability to retain volume after setting. d) 33-35 mm from bottom of the mould The materials used were lime and a volcanic ash that slowly reacted with it in the presence of water to form a hard mass. Second stage - It involves technical interview in a panel of 4-5 people. Your question and the answer could help others with the same type of challenges. b) Ability to make ringing noise when struck Because hardened concrete is a relatively brittle material with a low tensile strength, steel reinforcing bars and sometimes discontinuous fibers are used in structural concrete to provide some tensile load-bearing capacity and to increase the toughness of the material. a) Low durability Most of the heat liberated during Hydration of Portland Cement is contributed by, "Finely ground cements will hydrate more rapidly, but they give rise to higher rates of heat liberation during hydration. c) Universal testing machine (UTM) Mineral Commodity Summaries. © 2011-2020 Sanfoundry. A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. d) Particle size is too fine Jan 29, 2018; for the cement … Participate in the Sanfoundry Certification contest to get free Certificate of Merit. The cement industry is an example of an undifferentiated oligopoly. a) Initial setting time Please share in comments below… Editor’s Note: This post was originally published in May 2017 and has been completely revamped and updated for accuracy and comprehensiveness. View Answer, 4. Related terms: Al2O3; Admixture; Bending Strength; Compressive Strength; Durability; Microstructure; Mortar; Portland Cement; Silica Fume; View all Topics. Edited by Freek P Bos, Theo A.M. Salet, Rob Wolfs. a) 1 hour b) Vibrator 2. Atomistic simulations applications in cement and related building materials. However, in the presence of Portland Cement, fly ash can develop strength characteristics very similar to cement. Cement manufacturing: components of a cement plant. Glossary of some terms used in cement, concrete and in the analysis of cementitious materials NOTES: 1. Join our social networks below and stay updated with latest contests, videos, internships and jobs! Question– The diagrams below show the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes. 13 November 2020. It's about 8 inches long, 2 wide, and goes up at a slope to end up about an inch high. Why is natural cement used very limitedly? a) Brown in Colour b) Standard consistency is not met with c) Sets too quickly d) Particle size is too fine View Answer. I'm suffering from a problem where I urge to eat chalk, paint and cement. Discussion in 'Building' started by leonangie93, 7 Oct 2011. leonangie93. View Answer, 2. Who invented Portland cement and in which year? Related Questions. c) Joseph Aspdin, 1840s U.S. Cement Industry Annual Yearbook To recap: Cement comes from limestone, which contains the mineral calcium carbonate (CaCO 3). Related questions … asked a question related to Cement Mortars; What is difference between 0.485 W/C ratio and flow of 110+_5 in ASTM C109? How much material ie sand and cement would I need to repoint 60sq meters of brick wall? CiteScore: 11.0 ℹ CiteScore: 2019: 11.0 CiteScore measures the average citations received per peer-reviewed document published in this title. Be sure to click Submit Quiz to see your results! c) Sets too quickly » Plastering Questions » Question #66320. 1. Joined: 7 Oct 2011 Messages: 1 Thanks Received: 0 Location: California Country: So I bought a fish tank for two fire-bellied frogs that I have and made a small cement platform for them. b) It should feel cold when you put your hand in bag of cement What is the depth the needle in Vicat apparatus should penetrate into the cement paste in consistency test? Green cement is: c) Ability to form strong and sound structure View Answer. Which of these two is more likely to advertise? Hi all, I was wondering if you can help? Share on Facebook; Share on Twitter; Share on WhatsApp; Share via Email; Copy Link; Link Copied! About this page. Portland cement was named for the Isle of Portland, a peninsula in the English Channel where it was first produced in the 1800’s. d) Vicat apparatus Cement Plant Related Interview Questions. Natural pozzolans in eco-efficient concrete. View Answer, 5. b) Final setting time c) Cement mixed with recycled materials Edited by Hegoi Manzano. The fly ash reacts with a chemical by-product of the cement hydration reaction called calcium hydroxide -CaOH-. b) Cement mixed with plant products Edited by Karen Scrivener. View Answer, 7. In this article I am sharing a multiple choice questions on cement and their uses , basically cement very common topic of civil engineering. CiteScore values are based on citation counts in a range of four years (e.g. 20 August 2019. a) Core cutter Yes, concrete doesn’t ‘ dry’ when it sets, it completes a chemical reaction. Continue Reading. Digital Concrete 2020. 250+ Concrete Technology Interview Questions and Answers, Question1: What are all the types of cement? d) Cement mixed with green algae A number of different types of cement are manufactured, by varying the ratio of the raw material and/or by adding some additional materials. a) 33-35 cm from bottom of the mould (We don't misuse or display your mail id to anyone). The production process for portland cement first involves grinding limestone or chalk and alumina and silica from shale or clay. JS3000 is twin shaft horizontal forced type mixer. This page and the linked pages below summarize the cement manufacturing process from the perspective of the individual components of a cement plant - the kiln, the cement mill etc.. For information on materials, including reactions in the kiln, see the ' Clinker ' pages. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Cement MIS Archives (compressed files, .zip) |1965-1969 |1970-1974 |1975-1979 |1980-1989 |1990-1994 |1995-1999 |2000-2004 |2005-2009 |2010-2014 |2015-2017 | 2018 | U.S Production of Selected Mineral Commodities (Quarterly Mineral Industry Surveys) Annual Publications. How much cement and sand do i need?? c) Intermediate setting time c) 75 microns Interview Questions. Time elapsed from the instance of adding water until paste ceases to behave as fluid is called: Question. Which Physical test do you think is more important to justify the cement quality?
2020 cement related questions