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Hello All ... I am trying to create a spreadsheet for sand cone testing that will perform some of the calculations. I am stuck at imputing a formula to calculate the dry density . Does anyone know how to input that formula ? Thanks for any help ....

Hello All , So I took an exam recently that asked the questiion Q What is the tolerance of the concrete for a footing as far as the width . It gave I believe 1/2 " , 3/8", 1% and a couple of others. Not asking for the answer, as I would like to review this. The test referenced ACI 318...

Thanks guys for the help with this. The light is starting to blink a little bit and the numbers make sense. Now the challenge will be to get that cement properly mixed into each lift for proper uniformity and the compaction :) Thanks again for the help guys. peace...

Sir, Thanks for the response. If you get a chance , can you please explain what the /4)/2) portion of the formula is ? I'm getting the pi * d ^ 2 portion, as well as * 0.03 * the dry weight of the soil. Are you saying then that the 17,000 + lbs represent ( 1 ) one foot lift for 5 vertical...

Need some help please.... We have a 122 foot diameter structure with a 5 foot removal of existing soil under the proposed slab ( ox ). We are planning to remove 1/2 the diameter for the full 5 foot depth, stockpile the material, and then process and compact the sub grade. We need to add 3%...

I have gone through both and would say Larsen class is more complete.The ATI course was good as well, but is a distance learning class. The staff at ATI are very helpful as well. Guess it depends on how much you wanna spend :)

Hey there.. Geotechnical Testing, Observation, and Documentation (Paperback) by Tim Davis http://www.amazon.com/dp/0784409498 Soils and Foundations 4th edition by Cheng Liu and Jack B Evett-0-13-494949-8 Highway Materials, Soils, and Concrete. 0-13-212862-4 These might have something...

http://www.ati.coursehost.com/Files/02/PK/7038/ATI%20Home%20Page.htm or you can google in ATI ICC online

I went through his course as part of the Local 12 training some years ago. You will definitely know where to find the code answers and read the plans after completing his course. I was just looking into his online classes and they are around 400 bucks a piece. I found another course on-line for...

Hello All. I am ready to take the ICC Test. A co-worker informed me that by taking the fire-proofing ICC first,a person does not have to submit a letter of qualifications for additional inspection licenses ? Also was wondering if the 70 % requirement to pass test is for both the plan reading...

http://www.constructionbook.com/concrete-manual-study-companion-9093s06/concrete-books/

try this software http://www.gintsoftware.com/

Hello All, Am presently working on a trench paving job. Our firm had been directed to test the AC 3/4 " state mix after the material had been placed and cooled. Sometimes 3 or 4 days later. The total section of AC is 8" per plan. The contractor is placing in 3 lifts. An issue about why the AC...

Can I ask why you are trying to verify the wet density ?

Thanks to all for the help. They decided to go with an aggregate base for bedding. Compaction will be to 90 % of the max density. Contractor not to happy with having to compact bedding, but it is what it is. Thanks again for all the input, I learned a few things about gravel backfill and...

Thank for all the input. To clarify a few things. The material required originally was a Class 2 3/4 maximum aggregate base. Standard Caltrans specification Section 26. An rfi was submitted, and a 3/4 gravel was accepted as bedding. That material is a poorly graded 3/4 " crushed angular...

Hello all, A project we are starting next week requires 95% compaction on a 9" section of 3/4 " crushed aggregate under the pipe as well as thru pipe zone section. The pipe is 24" h20. As a technician, I have never actually tested the rock for density. Usually would just recommend the...

How much oversize is in sand ????

Thanks for the help. We used hand compaction equipment around the tight areas. A jumping jack around the base and sides of the 24 " crossing as well as a powder puff. We used the jumping jack in between the conduits. Seemed to tighten up fine. Thanks Again Bill

Hello All. Any help would be appreciated. We are backfilling a 8" sewer line. The cuts are approximately 12'deep.The trench width is three feet. The existing trench wall material is a silty sand. Max of 125.0 at 10 % H20. The next section we will do has a few existing utility crossing thru...