Mud Mat as Structural Element | Eng-Tips A mud mat makes a good all weather working surface, allows accurate placement of the structural foundation rebar, and prevents the structural foundation concrete from being contaminated with soil and that's all it does (but which is certainly important) IMHO, at best the mud mat can be thought of as "really good backfill"
Angle of friction for backfill soils | Eng-Tips Hello everyone, I am designing a cantilever reinforced concrete retaining wall and I need to determine the angle of friction of backfill soil Since this is not an insitu soil how am I supposed to determine the angle of friction of the backfilled soil since i am not able to get samples to carry
Development length for hooked bar in footing | Eng-Tips I'm designing a retaining wall (inverted T design) and my question is in regards to how much of the footing I can use to develop my wall reinforcing I'm thinking that the development length of my vertical reinforcing needs to be measured from my hook to the top layer of reinforcing in the
Questions about Mud Slabs | Eng-Tips It is recommended that mudslabs be used for blindside waterproofing under structural slabs Besides providing a flat working surface, what other benefits do mud slabs provide? How do I determine whether it is really necessary
Specific Requirements for Mud Mat? | Eng-Tips The excavation involved blasting which resulted in some areas that were over excavated approximately 5 feet below the design elevation in which the foundation is suppose to sit on We will be filling the gap with 3000 psi concrete acting as a mud mat I'm trying to find out if there are any specific standards to follow for the design of mud mat
Mat Slab Foundation Reinforcement per ACI 318-14 | Eng-Tips Do you agree with this interpretation of ACE 318-14? Any strategies to reduce reinforcement staying within the code 318-14? Plain concrete mat foundation for flexure if it works (are there provisions that address this?) and then add T S because you just want to?
Subgrade Modulus for Mat foundations | Eng-Tips Hello all, I'm analyzing a mat foundation in STAAD and would like to get input on the subgrade modulus being used I'm using plate mat foundation supports in the Y-direction in STAAD The geotech report stated a unit subgrade modulus of 150 pci and suggested that the subgrade modulus be
RAFT MAT FOUNDATION - ONE WAY SHEAR | Eng-Tips Dear All, Do we design a Raft for One Way Shear, If Yes what is the criteria to check one way shear design of Raft Mat foundation ? I am checking a Raft shear design with allowable shear stress in SAFE and doesn't seems to be reasonable Most literature favors checking of shear forces rather
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