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

Vertical curves - geometric design of roads, Vertical Curves: When tw...

Vertical Curves: When two vertical gradients meet, it is necessary to provide a vertical curve. Two types of vertical curves are used: (a) Summit curve, where the point of

Explain the suppressed rectangular weir, Explain the Suppressed Rectangular...

Explain the Suppressed Rectangular Weir If the length of the weir (b) equals the width of the channel, i.e., the flow is not "contracted".

Project management, Project Management: This unit starts with the gene...

Project Management: This unit starts with the general definition of Project management. Several phases involved in project management are also desribed. Further, the technique

Compass survey, define compass survey and mention its objectives

define compass survey and mention its objectives

Timber, uses of timber in civil engineering field and its physical state an...

uses of timber in civil engineering field and its physical state and chemical formula or symbol?

Plumbing technology, This assessment will test Learning Outcomes 3 and 4 as...

This assessment will test Learning Outcomes 3 and 4 as well as the component of Learning Outcome 1 as it refers to waste disposal for the Plumbing Technology. The student is expect

Pumping for concreting works, Question What are the key problems if use pu...

Question What are the key problems if use pumping for concreting works ? Answer In pumping operation , force exerted by pumps have to overcome friction involving concrete an

Explain fluidized-bed incinerators, Explain Fluidized-Bed Incinerators ...

Explain Fluidized-Bed Incinerators sand is heated to 800C by oil or gas and blown around (fluidized) by a blower that sends air from bottom upward heated fluidized san

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