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FAQ

what happens if i run on cement for 25- 30 mins for 3 times a week?theres not much place where i can run on grass though there is a little park that i can run back and forth continously will that be better than running on cement for 25 - 30 mins for 3 times a week?I know its bad for your knees but what happens when you keep running on cement?

since cement is very hard, the impact of the foot hitting the ground will be much harder and this is not a good thing. it will detoriate the joints in both your ankles and your knees. and you are at greater risk of getting small stress fractures in your shins (shin splints) which are quite painful. i do not suggest running on cement as it can have increased damage to your joints than any other running surface. if there is a track at a school that their is access to or something similar i would suggest running on that.

that is 40% cement?

.25(30)=x =7.5 and .4(30+y)=x+y 1) substitute x=7.5 into 2nd equation .4(30+y)=7.5+y 2) 12+.4y=7.5+y 3) 12.5-7.5=y-.4y 4) 4.5=.6y 5) (4.5)/.6=y 6) y= 7.5kg of cement added (37.5kg cement MIX) To check answer: original 7.5kg of pure cement(25% of 30kg) plus the added 7.5kg of pure cement = 15kg of pure cement. 30kg total mix plus added 7.5kg of pure cement = 37.5kg of cement mix. (15kg of pure cement)/(37.5kg of cement mix) = .4 or 40%

I started to open a company. We are doing transportation and building materials. Think of a company name. Would like to ask you what name should you register the capital can be less? Can tax less? As far as possible can not be separated from the transport of building materials this lazy rough scratch Nao calcium stubble water long class. What kind of tax should be reported? The Please do not send some tax law in general? The company set up conditions ah ... ... straightforward some ... ... more

The name of your own name is, there is no limit, as long as the same industry can not be the same (I said the same range is very wide) there is the same is not allowed to take the rough scouring Nao calcium stubble in the water

a concrete ix requires 3 parts sand and 5 parts cement.how many pounds of cement are needed for 75 pounds of sand?

125 pounds of cement

i.e. if a concrete slab is 10m3 how many bags of cement are needed?

Length (in feet) x Width (in feet) x Height (aka Depth) of 2/3 foot (aka 8 inches); and divide the answer by [ 3 x 3 x 3 = ] 27 cubic feet per (cubic) yard = Volume needed. But as others said, you should get some advice; and probably someone to smooth it out, depending on where it is going and what it will be used for (floor in house v. driveway, etc) because you may need to allow for expansion joints, etc; and concrete truck drivers do not like hanging around ( because time is money, and the concrete starts hardening in the tumbler on the truck after a short time).

We just bought a 15' x 48quot; metal-frame above ground pool and we heard that it can crack the cement!!

How many gallons does the pool hold? figure 8 pounds per gallon of water. Granted it is spread out over the whole patio but over the years the ground under the concrete is probably not level anymore. Ground freeze, water washing underneath etc. that much weight is probably going to crack the concrete. Think about this, When I bought my hot tub both the hot tub supplier and the concrete installer recommend that I use an 8 bag mix, add fiberglass and pour the concrete at least 6 inches under the area of the tub.

My contractor put in a couple of feet of cement board around the lower tub region, but on the upper half of the tub (shower head portion) he put in drywall. He taped the joint where the drywall and cement board meet. A friend who has done some tiling told me that there could be movement on the joints between the cement board and the drywall, which would cause the grout to fail and start to come out. He also didn't like that drywall was used.

Not like it was done there for a couple reasons. 1st the tile needs to bond to the cement boards at a minimum of six foot in a shower.And a minimum of 5 ft in a tub surround. Going to the ceiling is better , but tile should bond to the cement board if you want it to last. 2nd you should never tape w/ dry wall mud and bond to that. Water will destroy it of time and it will lose its bond.Any taping done at the joint should be done w/ cement board tape and thinset so as the water wont harm it.Any questions you can e mail me thru my avatar and check out my qualifications. Watch out for other short cuts.What thats going to cost him now to redo it is pale in comparison as to the little it would cost to have done it right. GL

doing a red brick fireplace at home.what sand/cemnt ratio should i use?

5:1 sand/ cement is a good allrounder