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

Define pavement design - transportation, Define Pavement Design - Transport...

Define Pavement Design - Transportation 1. Asphalt surface a. Estimate Design Traffic b. Determine the Structural Number (SN) for the given traffic, roadway, and soil cha

Railway bridge, how to measure the waterways of railway bridges

how to measure the waterways of railway bridges

Earth work in high embankments, Q. Earth work in high embankments? (a) ...

Q. Earth work in high embankments? (a) Borrow pits must not be dug close to telegraph poles, electric poles, level crossings, bridges a culverts, or within 800 meters of the bo

Types of cement, Types of Cement In addition to ordinary Portland ceme...

Types of Cement In addition to ordinary Portland cement there are various varieties of cement. Significant varieties are briefly explained below: (i) White Cement: The ce

Project planning, can you please provide with an example for mobilisation a...

can you please provide with an example for mobilisation and demobilisation plan, induction and deployment schedule, broad execution schedule in excel,quantity schedule for major qu

Stair, Difinaction of stair

Difinaction of stair

Transportation engineering, what is difference between stopping sight dista...

what is difference between stopping sight distance and overtaking sight distance

Define the cavitation - underwater inspection of bridge, Define the Cavitat...

Define the Cavitation - underwater inspection of bridge? Cavitation damage is caused by repeated impact forces caused by collapse of vapour bubbles in rapidly flowing water. Th

Calculate the final volume of the compacted soil, 1. 130,000-yd 3 of banke...

1. 130,000-yd 3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite. The soil has 18% swell and shrinkage of 8%.  The final volume of the compacted

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