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

Key reasons for conducting pull-out tests, Question What are key reason...

Question What are key reasons for conducting pull-out tests for soil nails ? Answer There are largely four bases for this examination- (i) To verify and verify bo

Determine the settlement of the foundation, The thiclcness of the normally...

The thiclcness of the normally consolidated soft clay layer is 6 m. The natural water content is 31 percent. The specific gravity of the soil being 2.68 with a liquid limit of 4

Determine the statement about construction earthwork, Which of the followin...

Which of the following statements about construction earthwork are true: I.  The volume of earth known in its natural state is known as bank-measure; in-situ; in-place; virgin

Statics - SFD & BMD Calculations, Could someone please help me with the cal...

Could someone please help me with the calculations of determining the sfd & bmd for cantilevers with udl''s, lvl''s and point loads? Also could I please have the same for ssb with

Define continuity equation, Define Continuity Equation Mass in fluid sy...

Define Continuity Equation Mass in fluid systems is always conserved.   Ρ 1 v 1 = ???? 2 v 2   If the fluid density is the same at both points in the flow, the continui

Bridge design, criteria for economical span length in bridge

criteria for economical span length in bridge

Define the hazardous waste, Define the Hazardous Waste 1. Any waste or ...

Define the Hazardous Waste 1. Any waste or combination of waste that poses a substantial danger now or future to humans, plants, and animals without special precautions. 2.

Bleeding test for grout – an essential requirement, Q. Bleeding test for gr...

Q. Bleeding test for grout – an essential requirement? Bleeding is a form of segregation in that a layer of water migrates to surface of the grout at the time of the initial st

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