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

Shear force, what is shear failure and shear force please explian?

what is shear failure and shear force please explian?

Explain the well drawdown equations - ground water, Explain the Well Drawdo...

Explain the Well Drawdown Equations Watch the units, especially if you use log 10 or ln.    h 1 = aquifer thickness minus the drawdown (ft)  r 1 = distance from well (ft

Diffrence between rowe cell and oedometer apparatus, Q. Diffrence between R...

Q. Diffrence between Rowe cell and Oedometer apparatus? The benefits of using Rowe cell over oedometer apparatus are:  (i)  It possesses control facilities for drainage and

Support reaction, different types of support force & effect of hinge suppor...

different types of support force & effect of hinge support

Road survay, how many programmes in road survey by level matichine and ts?

how many programmes in road survey by level matichine and ts?

Consultant , how to convert a varying distributed load to a uniformly distr...

how to convert a varying distributed load to a uniformly distributed load

Determine the types of losses of prestress, Determine the types of losses o...

Determine the types of losses of prestress A loss of prestress will affect the stress distribution on a section of the member. It is therefore necessary to estimate the probabl

Deflection, solving problems with their answer

solving problems with their answer

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