0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why Portland cement is called hydraulic cement?
Portland Cement is classified as "hydraulic" cement because it cures or solidifies due to its chemical exchange with water, stemming from the building material's ability capability to set under water. In the well industry Portland Cement can be placed or pumped into voids at thousands of feet in depth. As long as the mixture is released or pumped without significant breakdown of the mixture due to water flow the cement will cure just as well we see during ground level applications.
What surface can you install tile on?
Tile is best placed onto cement or cement boards. With that stated Custom Building Products, one the biggest makers of tile thinsets and cement boards says it is allowable, although not preferred to install on CDX plywood but your total floor must be 1 1/4" with all subfloors. Back splashes in areas that are not exposed to steam or water can install onto plaster walls.
How do you you pump a balanced cement plug?
Balanced cement plug is pumped through drill string or open-ended tubing. 'Balanced Cement Plug' means that the top of cement outside the drillstring/ tubing will be the same height as the top of cement inside the drillstring at the end of pumping. The drillstring/ tubing is then slowly pulled from the wet cement, allowing the cement inside the string to fill the centre of the plug. There are lots of refinements in this method with open hole cement retainers or high viscosity 'cushions' often placed below cement. In vertical hole, most balanced plugs are successful. In extended reach wells, failure rates can be high with cement slumping and mixing with synthetic based muds. A typical checklist to improve cement plug success in extended reach wells would have: 1. Always use a tailpipe. This reduces the disruption to the plug caused by removal of the drillstring. 2. Clean up the hole thoroughly before pumping cement. Cement is an excellent hole cleaner. Many 'flash set' events reported are really packoffs caused by cement picking up a cuttings dune. 3. Put a diverter tool with BIG holes on the bottom of the tailpipe. This directs fluids up the hole during cementing 4. Use a scavenger spacer in front of the cement job to convert the formation from oil wet to water wet. 5. Slow down pumping to 1 BPM while displacing cement into open hole. This reduces mixing of cement and mud. 6. Put a cushion below the cement plug. A cement retainer is best. If a viscous cushion is spotted, weight the cushion to 1 ppg below the cement weight. 7. Gravity is NOT on your side. Cement can stay inside the tail pipe as you pull it from the plug. Pump the volume of cement inside the tailpipe as you pull the tailpipe from the plug. 8. Circulate clean the long way with the bottom of the tailpipe at the planned cement plug top.
How can damage from strip mines be repaired?
It actually takes place on an ongoing basis in the US. When a mine is closed, there are funds that have been set aside for restoration of the mined area. Land is contoured, topsoil placed where it is needed, and lands planted with vegetation that will grow in that area.
What are column footings?
From the ancient days itself, the column has been used as a re-enforcement for many of the infrastructures and has also been recognized as a work of art representing a sense of style and grandeur. If you are looking to build one, here are the tips on to get started : Required Tools : Masonry brush gloves Masonry brush Cement Rubber cement Water Shovel 5 gallon pail Wood (including 2*4 ply) Here are the instructions to build : Firstly before you begin, it is important you have a design of how your column footing should look. So design one. Get a shovel and start digging the hole where the column footing must be placed. then dig an area around the column hole where the footing will be placed. The hole must be 12 inches deep and 23 inches wider. Make a frame for each side of the foot using a 2*4 inch board. Once done, cut the frame to fasten them together. Use a custom made 'form' to fasten the plywood and attach the lip of the form to the top of the plywood. Start coating the inside part of the frame with quick drying rubber cement. Now use the shovel to mix two batches of cement with and without the gravel. Take smooth cement using the pail and full the frame below the edge of the outside walls. Now lay another layer of cement which is 4 inches deep into the 12 inches hole for the column. Once you have mixed the cement, you will place the column footing in it.Then you should allow it to dry.Next you should remove the frame and form from the hardened cement and peel the rubber. Then allow the column to air dry. Use the smooth cement to fill the empty gaps. Get masonry brush and put on masonry gloves to brush the final product so everything is smooth. Hope this helps.
What does a cement mat in a laboratory do?
A cement mat is placed on the bench of a laboratory to protect the bench from burning or any harm. Does that help from Sciencenerd A cement mat is placed on the bench of a laboratory to protect the bench from burning or any harm. Does that help from Sciencenerd
What does Nathan radley do to the tree where the gifts are placed?
Nathan Radley fills the hole in the tree where gifts are placed with cement to stop Boo Radley from communicating with Scout and Jem.
What term describes Indians placed under federal protection and support?
The Restoration Act
What is the cement called that is placed between the bricks when building?
mortar mix
Fentanyl nasal delivery and buccal tablets?
Fentanyl nasal delivery is thru the nose and buccal tablets are placed between the gum and cheeck
Can rolled vinyl flooring be placed directly on top of leveling cement?
Yes as long as it is smooth and has no residue on the surface.
What does an indirect object come in between of?
An indirect object typically comes between the verb and the direct object in a sentence. It indicates to whom or for whom the action is being done. For example, in the sentence "She gave him a gift," "him" is the indirect object placed between the verb "gave" and the direct object "gift."
What is hair restoration surgery?
A thin strip of donor hair is harvested from the donor area which is the region of hair on the back of the head in which the hair is genetically programmed not to fall out. These hairs are permanent. The donor strip is then placed under a microscope designed specifically for hair restoration surgery and the strip is then dissected into microscopic grafts of individual follicular units, of one to four hairs. This all important step in hair restoration surgery must be precise in order to gain the best yield from your donor area. These precious grafts are placed in a cold, tissue storage and kept as such until they are meticulously placed in the recipient sites.
What will happen when a bag of cement is placed in airconditioned room?
It will last longer before it goes hard because the room is less humid.
Why Portland cement is called hydraulic cement?
Portland Cement is classified as "hydraulic" cement because it cures or solidifies due to its chemical exchange with water, stemming from the building material's ability capability to set under water. In the well industry Portland Cement can be placed or pumped into voids at thousands of feet in depth. As long as the mixture is released or pumped without significant breakdown of the mixture due to water flow the cement will cure just as well we see during ground level applications.
Is cavity varnish placed over or under calcium hydroxide?
Cavity varnish is typically placed over calcium hydroxide when used together in a dental restoration. The calcium hydroxide acts as a base or liner to protect the tooth's pulp, while the cavity varnish is applied on top to seal the restoration and provide additional protection against bacteria and microleakage.
Use Hair Restoration Formulas Carefully?
One of the most popular forms of hair restoration is the use of Minoxidil. This formula can be found in various over the counter and prescription hair restoration treatments and medicines. Originally used to regulate blood pressure, Minoxidil actually tends to grow hair wherever it is placed. If using this substance for hair restoration, be careful when applying the scalp medication, as poorly applied minoxidil can result in an uneven and false looking hairline.
