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

Example of pure bending, • The bar carries equal weights at equal distances...

• The bar carries equal weights at equal distances from the weight lifter's hands • The reactions (R) at the hands must be equal and opposite to the weights • The pair of for

Formwork, slabs and beam formwork

slabs and beam formwork

Show method of greasing, Method of Greasing : Greasing of fixed end require...

Method of Greasing : Greasing of fixed end requires 20 to 25 minutes. The lifting is hardly 10 mm, ensuring that the gap is created between saddle block and knuckle pin. Saddle is

Ocf, location of hydrolic jump

location of hydrolic jump

Define the crash rate for intersection, An intersection has a total enterin...

An intersection has a total entering traffic volume of 42,000 vehicles per day.  During the past three years, there have been a total of 35 reported intersection-related crashes.

Define seismic isolation bearings - bridge bearing, Define Seismic Isolati...

Define Seismic Isolation Bearings  - Bridge Bearing? Many bridges had been built before the proper seismic design specifications were known to us. These bridges require strengt

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