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

Explain the unit hydrograph - hydrology, Define Unit Hydrograph Hydrogr...

Define Unit Hydrograph Hydrograph of one inch or 1cm of precipitation over a drainage basin area (watershed). It is the base hydrograph from which other hydrographs can be dete

Keywords related to water transportation, Keywords related to water transpo...

Keywords related to water transportation: Oceanic Shipping: Shipping taking place in the oceans. Coastal Shipping: Shipping taking place along the coast line. Inlan

Reliability of settlement computations, Inspite of the problems of sample d...

Inspite of the problems of sample disturbance, if 1) e or E vs log p curve is interpreted, reasonably with some corrections for sample disturbance, 2) if the sample disturbance

Explain resultant force on a area of a vertical plane, Resultant Force on a...

Resultant Force on a Given Area of a Vertical Plane The resultant force is calculated from the average pressure: R = (AVERAGE Ρ)(A)

Bearing, convert the following whole circle bearing to QBs... WCB of AB=45 ...

convert the following whole circle bearing to QBs... WCB of AB=45 degree and 30 mintus

Thermocouples are utilized for the measurement of what, Thermocouples are u...

Thermocouples are utilized for the measurement of what temperature? Answer: It is utilized for the measurement of temperature.

Surveying, what are obstacles in chaining

what are obstacles in chaining

Define underwater magnetic particle testing, Define Underwater Magnetic Par...

Define Underwater Magnetic Particle Testing? Underwater magnetic particle testing (UWMT) is a non-destructive testing suited for detection of surface cracks or discontinuities

Crushing strength test - tests on stones, Crushing Strength Test: F...

Crushing Strength Test: For conducting this test, specimen of size 40 × 40 × 40 mm is build from parent stone. Then finely the sides are dressed and placed in water for thr

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