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 a critical path - construction management, Explain a Critical Path ...

Explain a Critical Path The series of activities which determines the earliest possible date of project completion Usually defined as those activities with minimal or

Determine the equivalent of free float, The free float is equal to: a. L...

The free float is equal to: a. Latest allowable event occurrence time + Early finish time b. Earliest event occurrence time + early finish time c. Latest allowable event o

Explain the terms void ratio, (a) Distinguish among Black cotton soil and L...

(a) Distinguish among Black cotton soil and Laterite from an engineering point of view. (b) Explain the terms 'Void ratio', 'Degree of saturation' and 'Water content', define th

Effect of prestress in an reinforced cantilever beam, Effect of prestress i...

Effect of prestress in an reinforced cantilever beam The effect of prestress in an ordinary reinforced cantilever beam and a prestressed concrete (PSC) beam. When no load is pr

Rcc flooting, Explain the simple square footing, simple squral footing an...

Explain the simple square footing, simple squral footing and slop footing with the help of drawing

Define types of inspection of bridge, Define Types of Inspection of Bridge?...

Define Types of Inspection of Bridge? Underwater inspections are generally categorised into five types: - Inventory - Routine - Damage - In-depth - Interim

State the procedure of prestressing, State the procedure of prestressing ...

State the procedure of prestressing When these wires cool down, concrete is poured in the moulds in which these tendons are provided in a stretched condition. Using this proces

Earth Pressure Theories.., While calculating Active Earth Pressure, do Colo...

While calculating Active Earth Pressure, do Coloumb''s Theory and Rehbann''s theory yield same results? I''ve tried and didn''t get the same results. Where might be the mistake?

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