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I see , Thank you !!!

Goswami has : Rmin=S^2 / (15(0.01xe + f )) where CERM has the same formula but omits the 0.01. Which should I use ? Will appreciate any help. Thanks!

Hi everyone, Just wanted to make sure that I was right on this. I never forget something that I discuss , so : When Solving for consolidation settlement , H (in), is the full thickness of the layer.

I have to apologize, there is no such thing as a Sieve No. 16 in the problem. The correct information is sieve no.200. With respect to the % passing , I checked and the problems states the % passing by weight ! sieve % passing by weight 10 19 40 25 200...

Sure , A contractor has the data tabulated below relating the size, and cost of seven concrete slab projects: Project, Cost($), Area(sf) 1, 21021, 3000 2, 24180, 3750 3...

The problem shows those results.

A series of ground water Wells are shown with a given hydraulic conductivity , soil porosity and retardation factor. Also, the elevation on each well is given. The problem asks for the solute actual velocity in (in/day). v=(k)(i)/ (n)® ... cant's find solute velocity anywhere in CERM. Im I...

I only can find a definition on this speed parameter on CERM 73-4. Where can I find more examples, not sure I understand. thanks . . .

A contractor has the data tabulated relating the size(sf) and cost os seven slab projects. Project Cost Area 1 $21021 3000 2 $24180 3750 3 $15915 2250 The problem says to apply the weighted unit cost to find the conceptual cost...

where in CERM can I find information on carcinogens and its acceptable risk to humans ?? will appreciate any information.thanks

hi , Is it safe to use delta E=(d2-d1)^2 / 4d1d2 or should I always solve for the energy loss with the upsteam velocity and the down stream velocity ( v1 and v2 ) CERM 11 edition , page 19-22 ?

Hi everyone , I was solving a problem where I was classifying a soil according to the USCS system: Sieve 10 . . . . 19 % pass Sieve 40 . . . . 25 % pass Seive 16 . . . . 16 % pass I know is a Coarse Soil bacause it has lass than 50 % passing the No. 200 sieve. When I tried to keep going I...

now I will never forget that PI=LL-PL now I have a better understanding. Its great to have another explanation rather than CERM.

thanks for clearing that out for me.

yes, I also got the same area, A. Thanks a lot, I was driving myself crazy !

These types of problem I find the a little tedious. Are all the concrete mix problem solved with the absolute volume method ??????

Yes , this helps a lot. Thanks everyone.

The problem states a trapezoidal channel: The sidewalls rise 2 feet for every 1 foot of horizaontal and T=12 feet. Q-854 cfs at critical flow. The problem says the channel is carrying Q at the critical flow. CERM 11 edition , pg. 19-18 says: (Q^2/g = A^3/T ) for non rectangular channels. The...

hi everyone, Need help understanding the negative sign when using the formula for change in length when experience a temperature change. The problem I was solving states that a steel beam was subject to a temperature change from -10 to 40 degrees. The solutions has: T2=-10 T1=40 ...

Hi , I was solving a problem for that wanted us to find the growth on traffic volume given: year 2006 .... 87,000 veh/hr year 2014 ..... ? veh/fr growth rate .... 2.5% the solution stated (1+0.025)^8 . . . . . is this a general equation for growth rate ?