Search results for query: *

Are there any research papers showing the Astm standard infiltration test is good or bad?

Having the upper floor in or some bracing before back fill is compacted helps prevent basement walls from moving or cracking, but then you run the risk of rain or snow getting into the excavation also.

Thanks, and yea I know what you are talking about, I have used both R and CBR values to develop cross sections for many unpaved and paved roads. I haven't dismissed GPT's comments either, I do use the axle loading for the fire trucks. I'll stick with what I know and should have expected the...

No, I want bearing capacity. Thanks for being so helpful.

I'm guessing I might be looking for ASTM D4429

This isn't for a building it is for a gravel road. The fire department requires dirt roads to be able to hold a 75,000 lb truck. That is why I need this.

Anyone have a good reference to calculate bearing capacities for unpaved roads/parking areas?

Thanks for the help, Take Care, Andy

I've done a heck of a lot more than that. I'll just go to the university when I get back.

I have been going round and round with geologists in Peru about what exactly Lutite is. Can anyone tell me or point me into the right direction.

Has anyone used this before? Is there an ASTM standard? What is the test called. We used it at a site in South America. The same hammer, count the blows to penetrate the ground 15cm like the SPT but there was a solid cone at the tip instead of a SPT barrel.

Does anyone know of a good source on the design and/or construction of Compacted Clay Liners, not for environmental but more for water storage?

Our proctor was 119.1 pcf at 13.9%, which seems a little low to me for base course. We had another done at the pit with 122.7pcf and a moisture of 11.3%. It does seem like the recycled concrete base course does require more compactive effort than regular base course.

Basically what we ended up doing is laying down 4" lifts, had the semi's run over it and a new vibratory smooth steel drummed roller go over it eight times. Total thickness was 8 inches. The base course looked like it was aggregate with concrete fines in it already, so I wasn't to worried...

Thanks for the info guys, I'll check and see about the modified test actually cruching the material, that does make sense. There could possibly be recycled asphalt in the material I suppose, but I haven't seen any of it.

HAs anyone had experience using this stuff. It is aggregate Road Base CDOT Class 6, if anyone is familiar with CDOT. But the compaction keeps coming up in the low 90's with a modified proctor, moisture looks good. The contractors seem to be laying it in there and compacting it with a...

Thanks, AJ

I'm looking to get a copy of both of these papers for some seismic analysis on a proposed dam. Does anyone know where I can get a copy? Thanks, Andy Krinitzsky, E. L. and Chang, Frank K., 1987, "/State-of-the-Art for Assessing Earthquake Hazards in the United States/," Report 25, Parameters...

Thanks for the help Eric1037 and Jeff, I'll see if I can get a hold of Dr. Hansen or at least some of his work and go from there. AJ

I'm working on a slope stability evaluation for two different landfills. One is primarily construction debris, such as 2x4's, concrete, rebar, glass, asphalt, etc... The other is primarily municiple waste. I'm trying to figure out what some good numbers are for unti weight, c, and the...