Explain the aashto classification system, Civil Engineering

Assignment Help:

Explain the AASHTO Classification System  

1.  Identify the percent passing the No.10, No. 40, and No. 200 sieves. Identify the LL and PI of the fraction passing the No. 40 sieve.  

2.  Use AASHTO Classification Table. Move from left to right using process of elimination until the first group consistent with the laboratory data is identified. 

557_AASHTO Classification System.png

3.  Special Notes: 

a) For groups A-4, A-5, A-6 and A-7: Calculate the group index (GI) using the equation shown below the classification table.  If GI is negative, it is reported as zero.   

b) For group A-7, the Plastic Limit (PL = PI - LL) is the differentiating factor between A-7-5 and A-7-6.  This is expressed in terms of Plasticity Index (PI = LL - LL), which you already use for classification.


Related Discussions:- Explain the aashto classification system

Illustrate truss with k-bracing, Q. Illustrate Truss with K-bracing ? I...

Q. Illustrate Truss with K-bracing ? In the arrangement of triangulated framework in truss structures, it's more economical to design longer members as ties whereas shorter one

What do you mean by plain elastomeric pads, Q. What do you mean by Plain el...

Q. What do you mean by Plain elastomeric pads? Plain pads are used for light or moderate loadings. Plain pads have a tendency to bulge under heavy loadings. In order to reduce

States of stress - principal stresses, States of stress - principal stresse...

States of stress - principal stresses: Now let us consider a few cases of solids of the similar material (mild steel) under various states of stress as display in Figure. The

Diver qualification - diving operation for bridge inspection, Define Diver ...

Define Diver Qualification - Diving Operation for Bridge Inspection? The requisite qualification for divers and diving supervisors are given in IS 10291 -1982, which stipulates

Test leakage of constructed gravity pipelines, Question Have air test o...

Question Have air test or water tests be selected to test leakage of constructed gravity pipelines ? Answer For gravity pipes, air tests are carried out after completi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd