What is a reasonable interval (test/CY) to test concrete(4 cylinders for compressive strength, air, and slump)?
Is this dependent on the size of the pour?
Let me know what your experiences are?
Is there anyone who understands scour depth and how I might find out some specific information related to it, how to compute, determine, etc.(Specifically related to scour below spillways)
I am designing a reinforced concrete spillway structure that will be configured with 4 50-foot wide bays. Each bay will be separated by a wall, which will act as a retaining wall if one of the bays actually overtops and starts to spill.
What is the best way to consider design of thickness...
I have a situation where we are designing retaining walls that are 25-30 feet high that are being used as dividers for a 4 bay fuseplug spillway on a dam. The walls act as retaining walls in the scenario that if one of the bays actually fails (in a large spill event) leaving one side to retain...
I am using ADOSS to analyze a two-way slab system. The program allows the input of a lateral load (They refer to it as a wind load). I want to input the lateral load as a seismic load to account for it in the loading scenarios.
All the other inputs in the program for loads are in lb/ft^2 but...
I am looking for help with a concrete mix we are proposing. We are adding Xypex (a crystalline waterproofing admix) to a Type V cement concrete mix for a water storage tank. The purpose for the Type V is that the soils in the area are high in sulfates. I am hearing the the combination of...
When is it generally appropriate to remove shoring from reinforced concrete construction. The case I am specifically asking about is a one-way slab supported by reinforced concrete walls. The 7 day breaks have returned at a little over 3,200 psi of 4,000 psi specified at 28 days.
Is there a...
I have been trying to find some information out about a deep reinforced concrete rectangular vault I am designing. The dimensions are 26' x 30' x 29' deep. Using "Rectangular Concrete Tanks" I am getting a wall thickness between 22" and 28" based on shear. Does this seem reasonable? It...
