2008年5月20日 · Our local regs dictate a minimum 1.5" asphalt, 6" base, and 12" subbase (LBR 40~=CBR 32, usually mixed into the top part of the subgrade), which is OK for residential and …

2006年7月7日 · South Florida roads use crushed limestone base. A typical section is 1 inch bituminous, 6 to 8 inches limerock, and 12 inch 'stabilized subgrade' i.e., the native sand with …

2005年3月30日 · Therefore, the CBR value would generally be 80 percent or so of the LBR value, though direct correlation is not necessarily good to do beyond a gross comparison, because in …

2004年5月27日 · In my area, the state department of transportation uses a bastardized version of the CBR called an LBR (Limerock Bearing Ratio). It is almost identical to the CBR, just with a …

2008年5月21日 · For work on VDOT (Virginia DOT) projects a CBR is required every 500 ft. When I know of a project that will go to VDOT, I do borings at 500 ft spacing that extend at least 5 ft …

2006年7月26日 · New to engineering - New to the forum, thanks. I am designing a basic 20' x 30' pumphouse for a small community. I have a basic CMU design with 10' ceilings, but I want 14' …

2005年1月13日 · Hi, Quick question. Imagine you have a square part with 2 holes. One hole is right on center and it is datum A. The other hole is drilled somewhere else, on the same face. …

2004年10月11日 · Let’s assume we are talking about a specified flanged connection. If the dimensions of piping assemblies are not correct (say one of the straight runs of pipe was cut a …

2016年8月11日 · This may seem like a silly question but it's something that I have been thinking about for years and I'd prefer to ask those more experienced with this subject. As we all know, …

2024年5月18日 · AISC 16th Edition Design examples are available for free download via this form: As a side note, they do not email you a link to the email address you provide, the web …