how many samples of concrete recommended per square meter as per ACI?
113595
i think 2 but i am not sure
268407
Actually it depends on the layout of the meters.  If it is a true square, it would be 2x2 meters... so 2 meters wide.  It is also possible to have four square meters be 4x1 meters.\n\nMore information is needed.
1013765
Silica fume has a average size distribution from 0,3 to 0,05 microns (or less) with a specific surface area from 15 to 200 m2/g.\n\nFor more information see the web site of degussa.
87739
I would recommend:\nmath teacher\narchitect\nengineir\n:D
863404
The gravel chips have density about 2.9 to 3.0 gm/cc.  The problem is estimating their packing factor.  Using 0.55, we have say 1.62 gm/cc therefore 1.62 tonne per cubic metre.  The actual chip size doesn't come into the calculation, so sand ought to be the same, except that if the grain size varies a lot then the packing factor could maybe go up to 0.65 as small grains fill the spaces between larger grains, but still just under 2 tonne/m3.
458678
Go to:\n\nhttp://www.archinform.net/ort/2988.htm?ID=128117bca07326d55ad45e959393d75a\n\nhttp://www.emporis.com/en/wm/ci/?id=101212\n\nhttp://www.hobotraveler.com/ar2architectureofguatemala.php
463573
Well common since would say at least 20 gal(certainly nothing smaller) but to find out for sure call the building code enforcment office in your town or county and ask...
471498
http://www.worldcement.com/Cement/WC_industrylinks.htm
584869
http://www.ask.com/web?q=I+need+to+have+guidelines+for+insurance+risk+inspection+survey+for+cement+factories%28Plant+%26+Machinery%29%3F&qsrc=0&o=0
369527
The 1997 Uniform Building Code set the standard on seismic design for buildings.  You might try searching for that on Yahoo!
254818
1 (square meters) = 10.7639104 square feet
421079
Your question is not very specific. However, here are some information that might be helpful.\n\n1. If you are pertaining to fresh concrete, there is no specific record on the degrading effect of diesel. In fact, actual construction sometimes uses diesel based form release agents that debonds the fresh concrete from the formwork. Diesel is oil based. Knowing that, it will not in anyway mix or affect water content of the fresh concrete since oil and water repel each other. It may be important to note however, that there is no defined ACI or ASTM specification for the use of these form release agents. These materials are mostly regulated by EPA.\n\n2. In terms of concrete design, it is apparent that the main effect of diesel is its specific gravity. Diesel has a specific gravity ranging between 0.81 - 0.96 (based on water SG @ 60 deg. F. This means that you would not require as much reinforcement as you would in a tank that would store water.\n\n3. Some waterproofing materials that are used to protect concrete are diesel based. Again, this proves to show that diesel has no degrading effect on concrete.
855192
Steel reinforced concrete
611847
Depends on the sample size and population and things.  Generally, a z-table is good enough.  If the area outside is .0002, then that's around 3.7 sigmas.
735435
261360(!) assuming none have to be cut or get broken best order about 262.000 to be on the safe side. (The calculation is 4 slabs per sq yd and there are 4840 sq yds in an acre so you get 13.5 x 4840 x 4)
818544
3.5 by 4.5 km or 15.75 sq. km
708751
Material - Portland Cement\n Bulk Density- 1,2-1,36\n Max Angle of Inclination - 20\n Repose Angle - 39