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What are thermalite blocks made from?
Thermalite blocks are what is known as Aerated Concrete and in Europe, GasBeton or PorenBeton. Basically a giant rectangular "wagon " is filled with a slurry of Cement, Sand, Pulverised Fuel Ash, Lime, Aluminium Powder, Anhydrite and hot water and the "mix" rises like a giant grey cake full of bubbles. This cake is then cut into building blocks, put into an autoclave and the result is an extremely light weight, (the lightest floats in water)highly insulating, but very strong building material. Other manufacturers use Silica Sand to replace all or part of the PFA content, but this is obviously less environmentally friendly. Silica Sand-based blocks tend to be white in colour.
What is Thermowells?
Thermowells are used in industrial temperature measurement to provide isolation between a temperature sensor (often a thermocouple) and the environment whose temperature is to be measured. They are intrusive fittings and are subject to static and dynamic fluid forces. These forces govern their design. Vortex shedding is the dominant concern as it is capable of forcing the thermowell into flow-induced resonance and consequent fatigue failure. The latter is particularly significant at high fluid velocities. Thermowells are among the simplest yet least well publicized accessories used in industrial temperature measurement applications. There are many variations of two basic kinds; low pressure and high pressure. They are used to provide an isolation between a temperature sensor and the environment, either liquid, gas or slurry. A thermowell allows the temperature sensor to be removed and replaced without compromising either the ambient region or the process. The most expensive, complex thermowells that we have ever seen were made from drilled molybdenum rods with an internal sheath of high purity alumina. The annular space between the alumina and metal had a very slow gas purge of nitrogen+hydrogen to prevent oxidation of the moly surface. The well was inserted into the bottom of an electrically heated glass melting furnace and used to help measure the molten glass temperature. An IR radiation thermometer mounted on an electrically insulating holder was sighted into the tube to read the temperature indicated by the alumina, essentially under blackbody conditions. Low pressure, moderate to high temperature environments are routinely provided with a thermowell variant called a protection tube that can be made of metal or high temperature glass or ceramic, again according to he conditions. Most high temperature industrial furnaces use ceramic or metal protection tubes, according tho the conditions. for more detail visit www.tempsensindia.com
How many barrels of cement slurry are required to fill a 15 inch diameter well that is 1800 feet deep?
To calculate the volume of cement slurry needed to fill a 15-inch diameter well that is 1800 feet deep, first determine the volume of the well using the formula for the volume of a cylinder: ( V = \pi r^2 h ). The radius (r) is 7.5 inches (or 0.625 feet), and the height (h) is 1800 feet. The volume calculates to approximately 8,413 cubic feet, which converts to about 63,000 barrels of cement slurry (using 1 barrel = 5.61 cubic feet).
What is the level of suspended solids in cement slurry?
The level of suspended solids in cement slurry can vary, but it typically ranges from 20% to 40% by volume. The amount of suspended solids can be influenced by factors such as the type of cement used, the mixing procedure, and any additives or admixtures included in the slurry. Testing and monitoring the level of suspended solids is important to ensure the desired consistency and performance of the cement slurry.
What is cement grouting?
cement grouting is the process of injecting the cement slurry in to the engineering structures to stabilize the structure.
How can cement slurry modefy to enhance its function in oil well cementing operation?
How can cement slurry modefy to enhance its function in oil well cementing operation?
What is slurry cement?
mixture of water-cement-fine sand in a certain ratio which is usable to fill gaps, voids and other repairing purpose
What is the weight of cement mortar?
unit weight of cement, Portland is 1506 kg/cu.m unit weight of cement, mortar is 2162 kg/cu.m cement, slurry is 1442 kg/cu.m
How do you make a sand slurry mix?
two sacks of cement per cubic yard of sand
Can you tile over painted concrete wall for shower?
you have to remove paint n rough the surface then put some cement slurry n paste the tile by cement
How much does cement slurry cost per yard?
As of June 2014, the price for cement slurry is around $180 per yard. This includes delivery. Most places offer a quantity discount. For instance, the current price if you order 6 or more yards is around $88 per yard.
What are the factors affecting the initial setting time of cement?
When cement is mixed with water, it forms slurry which gradually becomes less plastic with the passage of time & finally a hard mass is obtained. In this process, at a certain stage when the cement paste is sufficiently rigid to withstand a definite amount of Pressure, it is said to have set & the time required to reach this stage is termed as "setting time".
Where can one learn how to install ceramic tile?
If you are installing on a concrete slab, then make a sand bed with sand & cement mixed to a praportion of 1:25. Level the bed. Then make cement slurry by mixing water. Pour the slurry on the bed for about an area slightly bigger than tile. Place the water soaked tile & give light blows by a wooden piece. then repeat the same procedure for next tile. Next day clean the joints & remove all excess cement slurry which has come out. Rake the joints. Then fill the joints by slurry of white cement. After a drying period of 2 hours, remove the excess white cement slurry. Pour some water for three days to keep the joints wet. If you want to install on prelaid flooring tile, then first grind the existing tile surface to make it rough. Then make cement slurry with polymer additive. Then paste the tiles on this rough surface by applying 3 to 4mm of layer of slurry. Sanjay - nikiasso@yahoo.com
Why is it that that concrete is stronger at bottom of column than on top?
when concrete is vibrated while pouring in to the form work, the cement slurry part tends to get drained through voids between aggregates and the richest part of cement slurry is detained at bottom portion of column. this causes a strong, dense, and void free concrete which ensures better compressive strength than the concrete on top portion of column.
