Can anyone either show me or tell me where to find the reason why augercast grout sample sizes are 2x2 or 2x4? I have an out of state engineer who requires 6x12 cylinders for augercast grout. And he informes me that unless I can show why 2x2 or 2x4 break more accuratly and consistently than...
Can anyone either show me or tell me where to find the reason why augercast grout sample sizes are 2x2 or 2x4? I have an out of state engineer who requires 6x12 cylinders for augercast grout. And he informes me that unless I can show why 2x2 or 2x4 break more accuratly and consistently than...
I have sample groups that include anywhere from 1 to 3 individual samples. How would one set up a control chart using excel for this situation? Would I have to calculate the control chart constant for each sample group, and enter that into a control chart? I currently am doing it based on the...
Anyone know of any documentation on the performance of shotcrete construction joints both using and not using waterstops of any kind? I am aware of shotcrete's exceptional bonding at those surfaces, and the lack of needing waterstops for that very reason, but without any documentaiton, its hard...
A question has come up, and I am unable to find the answer. A contractor placed a cross beam in an older building as a retrofit, the old beam is indicated on the plans to have SFRM applied, but not to the new cross beam, all the technical directors I have spoken with tell me that for heat...
Has anyone worked with or have performance data regarding substituting fly ash for portland cement in augercast grout? I am looking for shrinkage, modulus of elasticity, strength gain, etc.
Does anyone have any views or worked with Performance based concrete, and what type of testing during placement was called out for, and what the results were? I am looking at Special Inspection testing of plastic concrete, and the results, including any comparisons to a similar (ingredient type...
Has anyone done any studies or heard about the effects of slurry water containing trace amounts of admixtures on high strength (above 6K) concrete? And can those trace amounts be detected in hardened concrete?
