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.

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. See similar questions...

Answer: Setting is the stiffening of the cement paste after water is mixed. Broadly it refers to change of fluid to solid state. See similar questions...

Answer: The rate of hydration of cement depends on the fineness of cement and for a rapid development of strength high fineness is necessary. See similar questions...

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. See similar questions...

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. See similar questions...

Grout is a high quality product, fine, water resistant designed for grouting glazed wall tiles, mosaics, vitrified and fully vitrified tiles, ceramic floor tiles, industrial floor tiles, etc. Available in different colors that acts as a compliment or contrast to the tile, thus enhancing the appearance of tile. Epoxy grouts have high degree of resistance to chemical attack. See similar questions...

Cement, 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. See similar questions...

Answer. Nostradamus wrote primarily in "early Modern French," with an admixture of archaic words mostly derived from Latin and Greek. Early Modern French is approximately contemporaneous with Shakespearian English. He also incorporates words from the "Languedoc" or Provencal dialect of southern France. Readers who are familiar with Latin and modern French can often understand the original language, even if they have not studied early French or Provencal. See similar questions...

Answer: The term "mixed financing" (also known as mixed credit) refers to a credit agreement between a Swiss banking consortium and the Swiss federal government on the one hand and a foreign government or central bank on the other hand. The Swiss federal government contributes between 35 and 50% of the total credit line. See similar questions...

This inversion gradually lifts as the air beneath the inversion layer is heated and begins to lift and mix with the warmer air above. See similar questions...

Answer: This is using the results of one search as the basis of further searches thus refining the findings at each step. Answer: The purpose of the work is the use to which the booklet/presentation/product will be put, e.g to show how to make a chocolate cake. The purpose should also indicate the audience for which the booklet/presentation/product is intended, e.g it is intended for children of ages 8 to 10 years. See similar questions...

Answer: ???Range' implies more than one source, perferably a few, including one outside their immediate class or group. See similar questions...

Answer: In this context, a "complex" spreadsheet is one in which two or more functions such as VLOOKUP(), IF(), AVERAGE() etc and/or features such as conditional formatting, absolute referencing, etc are used in the spreadsheet. Answer: At this level, candidates should describe the task they are undertaking and produce a design or designs of the spreadsheet structure. See similar questions...

At-will" employment is the common law concept, pretty much unique to the United States, which gives an employer the right to fire a worker for any reason at all, that is, at the employer's will. Nearly all employees not protected by a union contract are at-will employees. Of course, an employer cannot fire a worker because of that worker's union activity or race, sex, creed, ethnic origin, or age. See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...