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

Retaining walls, Retaining Walls: Needed to retain the fill portion, a...

Retaining Walls: Needed to retain the fill portion, and generally constructed in dry stone masonry with pucca bunds (Figure). Figure: Typical Design for a Retaining

Define design aspects of pot bearing, Define Design Aspects of Pot Bearing?...

Define Design Aspects of Pot Bearing? Basic elements of a POT bearing are: - POT or a shallow cylinder - An elastomeric pad - A set of sealing rings - A piston P

Define influence lines, Define Influence lines Provides information...

Define Influence lines Provides information at a single point on a beam Can be used for: - Reactions - Internal shear forces - Internal moment Indicate

Disparity between fasteners, Question What is major disparity between ...

Question What is major disparity between fasteners , bolts and screws ? Answer Fastener is a broad term to explain something that is used as a restraint for holding

Construction management, i would like to get a project done. I have some pl...

i would like to get a project done. I have some plans and I need a cost estimate on how much it will cost to get it constructed.

Rectilinear motion, A train starts from rest as A and accelerates at 1,7m/...

A train starts from rest as A and accelerates at 1,7m/s2 to full speed at which it maintains until the brakes gives it a deceleration of 1,7m/s2 to stop at B. AB=1,6km. determine

Air pollution, chlorosis in plants is caused by

chlorosis in plants is caused by

Building technology 1, what are the defects in timber due to natural forces...

what are the defects in timber due to natural forces?

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