Question: What is setting of cement?
Century Cement- F.A.Q.Answer: Setting is the stiffening of the cement paste after water is mixed. Broadly it refers to change of fluid to solid state.
Question: What are the reasons for slow setting & quick setting of cement?
Century Cement- F.A.Q.Answer: Slow setting in cement is due to salts and chemicals in water sand and aggregate. Cold weather, less cement, high percentage of impurities, adulterated cement and improper water cement ratio. Qick setting of cement is due to addition of low quantity of Gypsum, hot weather condition, high cement fineness.
Question: What is the role of Gypsum in cement?
Century Cement- F.A.Q.Answer: Gypsum is added to control the "Setting of cement". If not added, the cement will set immediately after mixing of water leaving no time for placing.
Question: Why should cement be "fine"?
Century Cement- F.A.Q.Answer: The rate of hydration of cement depends on the fineness of cement and for a rapid development of strength high fineness is necessary.
Question: What's the difference between cement and concrete?
Century Cement- F.A.Q.Answer: Cement (sometime referred to as Portland Cement or hydraulic cement) is one component of concrete. Cement is to concrete what flour is to a loaf of bread. Concrete is basically a mixture of 2 components: aggregates and paste. The paste, comprised of cement and water, binds the aggregates (sand and stone or grael) into a rocklike mass as the paste hardens because of the chemical reaction of the cement and water. This reaction is called hydration.
Question: What is meant by "Soundness of cement"?
Century Cement- F.A.Q.Answer: Cement may sometimes contain free lime, which may cause expansion; hence soundness test is conducted to see that even if uncombined lime is present in cement whether it is in prescribed limits. If it is within the prescribed limits then it is said to be sound and causes less expansion and cracks.
Question: How to store cement?
Century Cement- F.A.Q.Answer: Proper storage of cement shall permit easy access for inspection and identification. Cement shoudl be stored in suitable weather, tight sructures, to protect the cement from dampness. It should not be piled more than ten bags in a stack and should be arranged in heather and stretcher fasion as far as possible. While removing the bags for use "FIRST IN FIRST OUT" rule should be applied.
What is cement?
Grand Rapids Gravel CompanyCement, or Portland cement, is a dry powder made from limestone and other materials. It is burned in a kiln and then ground finely. Cement reacts chemically with water to cause concrete to harden. There are several different types of Portland cement, designated as Type I, Type II, Type III, etc.
Question: Should we be concerned with setting target dates for each measure?
Maryland Alcohol and Drug Abuse Administration > Content > T...Answer: Not at this point, the budget for the state will be developed this summer. These are two year plans initially, but may be revised more frequently at the discretion of the jurisdiction. Answer: That information is not available that specifically at this time. An old estimate of the number of individuals affected by one person's alcoholism was one to four. However, that estimate does not indicate the number of children versus adults potentially affected.
Question: Is the Dorm setting for EVERYONE?
Shepherd's Inn Retreat CenterAnswer: No, not necessarily for those who prefer the perks, privacy and luxury of a hotel or motel (which are also much more expensive!) or a private home like our very nice, economical vacation homes. It is, however, great for those who need a clean, economical place to sleep, shower, and fellowship, and who appreciate the opportunity to share space with other Christian groups, if necessary. It is for folks of all ages who feel comfortable in a semi-private (church camp-type) environment.
Question: What about setting up a reflector?
CU-SeeMe ReflectorThe reflector can be compiled WITHOUT -DMULTI should be emphasized somewhere in FAQ, not just one line in the Makefile. Multicast function is a great hurdle to most people even the sysadmins. But one can compile reflector in UNICAST mode and see the wonder of CU-SeeMe. The explanation for CU-SeeMe's audio window control is VERY un-CLEAR. It took me a while to figure out what to do to send my voice out and receive audio. While we are testing we encountered strong echo effect on Mac.
Question: What are the raw materials used for manufacture of Cement?
Century Cement- F.A.Q.Answer: Calcareous (Lime stone obtained from mines) are Argillaceous materials (Clay, Bauxite) and Iron are teh commonly used Raw materials in the manufacture of cement.
Question: What is te seting time of Cement Concrete?
Century Cement- F.A.Q.Answer: The Setting time of Cement is the time required by concrete to harden and set itself according to the formwork in which it has been placed. The amount of time taken by concrete to set is 7 hours to 10 hours depending on the conditions under which the concrete is placed in the formwork. But this does not mean that the formwork may be removed after 7 hours.
Question: Does the color of cement have bearing on its strength?
Century Cement- F.A.Q.Answer: No, the color of cement does not affect the strength of cement in anyway. It just gives a proper finish to the concrete. There is a general misconception that the cement that is darker in color has greater strength, this is not true and the cement that is lighter in color not only has the same strength but also has a more pleasing finish than the cement that is darker in color.
Question: What effect does the water/cement ration have on the strength of concrete?
Century Cement- F.A.Q.Answer: The water cement ratio is very important with regards to the strength of concrete. The strength of concrete is inversely proportional to the water cement ratio i.e. with teh increase in water content the compressive strength of concrete decreases and vice versa.
How is portland cement made?
Cement & Concrete FAQs (Frequently Asked Questions) | Po...Materials that contain appropriate amounts of calcium compounds, silica, alumina and iron oxide are crushed and screened and placed in a rotating cement kiln. Ingredients used in this process are typically materials such as limestone, marl, shale, iron ore, clay, and fly ash. The kiln resembles a large horizontal pipe with a diameter of 10 to 15 feet (3 to 4.1 meters) and a length of 300 feet (90 meters) or more. One end is raised slightly.
Do you sell mixers for your cement line?
FAQsNo. Our cement has been made easy to mix in the provided packaging without the need and extra cost of a separate mixer.
Can you set the Moon Bounce up on cement?
CSR- frequently asked questions!Yes, the Moon Bounce will be secured with sand bags rather than stakes. However it is HIGHLY recommended that the Moon Bounce be set up on grass whenever possible. It is possible that someone could slip getting into our out of the moon bounce and hit the ground. The cement is unforgiving when this happens. There is an additional fee for hard surface setups.
