My autocad drawing has many colored lines and I want it to convert to autocad built-in PDF with all black lines. How do you do it? Please share step by step how to do this output to pdf in all black line thing (from colored lines). Thanks.
Does anyone own a Rebound Hammer? Have you tried testing it on a 1000 psi, 2000 psi, 3000 psi, 4000 psi, 5000 psi concrete to see if the results correlate supposing the surface is even and representative of the concrete? I saw it done and it seems to correlate somewhat.
What is your experience with concrete core tests? What strengths do you usually find? And if it falls below requirements, do you replace the whole sections or do you retrofit it by the concept of confining the strain hence making it stronger?
I was having conversation with another engineer...
