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

Installation of band drains, Question For drained reclamation, what wil...

Question For drained reclamation, what will significance of smear zone bring by installation of band drains ? Answer Throughout installation of band drains, smear zon

Horizontal capability of pile bents, Question For classic pile bents in...

Question For classic pile bents in marine piers, how can vertical loads related to horizontal capability of pile bents? Answer At first consider a pile bent with a top

Temporary repairs to rail fracture, Q. Temporary Repairs to rail fracture? ...

Q. Temporary Repairs to rail fracture? If a welding party is not readily available, the fracture shall be repaired by using a cut-rail (not less than 4 meter long) and clamped/

Determine the common ways to present the project schedule, Common ways to p...

Common ways to present the project schedule include all except: a. Gantt charts b. Milestone charts c. PERT charts D. Project Network Diagrams with dates added   So

Function of a separation membrane amid concrete pavement, Question What...

Question What is main function of a separation membrane amid concrete pavement slab and sub-base ? Answer Division membrane between concrete pavement slab and sub-bas

Determine the area ratio of a thin walled tube, Determine the area ratio of...

Determine the area ratio of a thin walled tube samples having an external diameter of 6 cm and a wall thickness of 2.25 mm. Do you recommend the sampler for getting undisturbed soi

Sub-base layer be served as a drainage layer , Question Would a sub-bas...

Question Would a sub-base layer be served as a drainage layer to take away water from pavement? Answer As well providing load distribution in post-construction stage a

Rubber dams – air-filled vs water-filled, Most of the existing rubber dams ...

Most of the existing rubber dams are of air-filled types. Water-filled rubber dams aren't preferred for the below reasons: (i)  By giving same sheet length and dam height, tensi

Civil Engineering Technology, Why hoisting and conveying equipment is very ...

Why hoisting and conveying equipment is very important in civil engineering?

Determine difference between stations in feet and in station, The survey ha...

The survey has identified the beginning and ending points along an urban arterial highway that require new sidewalks. The first station is located at 5+88 and the second station is

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