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

Classification of timber based on availability:, Classification Based on Av...

Classification Based on Availability: Forest departments categorized timbers based on the availability as X=Most common. 1415 m 3 or more per year Y=Common. 355 m 3 to 1415

What is the sludge volume index, What is the Sludge Volume Index? Two 1...

What is the Sludge Volume Index? Two 1 L samples of mixed liquor are taken from a lagoon. After settling for 30 min in a graduated cylinder, 250 mL of solids have settled out i

Explain about bentonite slurry and polymeric slurry, Q. Explain about Bento...

Q. Explain about Bentonite slurry and polymeric slurry? For the construction of diaphragm walls, bentonite slurry is generally used to form a filter cake on walls of trenches t

Describe the boussinesq theory, A raft of size 4 m-square carries a load of...

A raft of size 4 m-square carries a load of 200 kN/m 2 . Verify the vertical stress increment at a point 4 m below the centre of the loaded area using Boussinesq's theory. Compare

Road binders - bitumen, Road Binders: Bitumen: Bitumen is a viscous, s...

Road Binders: Bitumen: Bitumen is a viscous, semi-solid material, dark in color, having adhesive properties, and derived from the distillation of petroleum crude in a refinery

WATER SUPPLY, THE DESIGN PERIOD AVERAGE DAILY DEMAND CALCULATE. THE DESIGN ...

THE DESIGN PERIOD AVERAGE DAILY DEMAND CALCULATE. THE DESIGN DEMAND FOR THE WATER RETICULATION OR DISTRIBUTION PERIOD.

Explain the coordinate system, Explain the Coordinate System 1. A Bench...

Explain the Coordinate System 1. A Benchmark provides only elevation data. 2. Coordinate System provides northing and easting coordinates within a defined system. 3. Coor

Plants aeration period, Plants aeration period: Problem: What i...

Plants aeration period: Problem: What is the plant's aeration period? Solution The plant's aeration period is the number of hours that the wastewater is aerated

What is the long term effects - concrete, What is the Long Term Effects - C...

What is the Long Term Effects - Concrete Long term effects of  loads on structures consider all the effects including creep and shrinkage.

Operation researcg, Discuss Scope and necessity of O.R in industry ?

Discuss Scope and necessity of O.R in industry ?

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