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

Deflection, solving problems with their answer

solving problems with their answer

Jacking face for pipe-jacking, Ground settlement occurs ahead or behind the...

Ground settlement occurs ahead or behind the jacking face for pipe-jacking? It's reported by Lake (1992) that settlements are expected at ground surface at a distance of 1-2 ti

SURVEYING, TYPES OF OBSTACLES IN CHAIN SURVEYING

TYPES OF OBSTACLES IN CHAIN SURVEYING

Specification of water bound macadam road, Q. Specification of Water bound ...

Q. Specification of Water bound macadam road? Formation - The embankment for road shall be made to the cross section shown on the drawing. The bank shall be raised in regular

Mechanics of solids, Ask question #MinThe maximum instantaneous extension, ...

Ask question #MinThe maximum instantaneous extension, produced by an unknown falling weight through a height of 4 cm in a vertical bar of length 3 m and of cross sectional area 5 c

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