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.

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

This question ties in with the above question in as much as, a properly designed web site is optimized to download as fast as possible. Optimize in this instance means that all graphics, pictures and backgrounds are compressed to make the files as small as possible without loosing quality. Another reason that pages may download slowly is that there is too much on one page, large pictures, or the links on that page go to sites that are having server problems.

The advanced search options allow You to adjust several settings to Your preference, including the walking speed. The Journey Planner will suggest the most favorable transport connections. The regularity of train and metro services gives them preference over bus when travel times are equal. At the moment there is no available option to exclude certain modes of transport.

To provide a cost effective service - all ADSL services world-wide are ‘contended’ (shared). These contention ratios are applied in the backbone and international part of the network. In lay man's language it just means "How many people are fighting for the same internet connection line as you?". All customers are guaranteed the “Plan” rate up to the local exchange or the ADSL equipment to which they are connected.

Each and every of this Celebs height matches them,Tom Cruises height doesnt mean anything,he's totally fit and good looking at 5ft'6,7 or whatsoever. No matter how tall,short,underaverage, or whatever sort of stature you are,be proud of who and how you were made. Im 5ft'10 and at this height Im very happy,but occasionally Im a midget to my classmates back in high school,with only 8 boys. The tallest guy-Jamie-stands 6ft'9 and the second shortest(taller than me)is James who is 6ft'0.

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.

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

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.

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: 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.

The growth rate of prostate cancer varies according to individuals and conditions. Sometimes the cancer can be extremely fast growing and spreads into other organs of the body as well. However the disease can also be slow growing, often taking years to be detected.

Remember when you first took you new computer out of the box and everything worked so well and was so fast? And now, months or years later, all these nagging errors, pop-ups, and lockups keep happening. And everything is so slooooooowwwwwww……

Answer: Yes. The Department of Energy has the authority to exchange oil from the Reserve. These exchanges have been used in the past to replace less suitable grades of crude oil with higher-quality crudes and for limited, short-duration actions to assist petroleum companies in resolving oil delivery problems. In 2000, crude oil from the Reserve was exchanged for storage capacity and stocks to create the Northeast Heating Oil Reserve.

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.