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

Load transfer mechanism, Question What is load transfer mechanism for p...

Question What is load transfer mechanism for paving blocks in pedestrian footway? Answer In Hong Kong, footway is as a rule designed with paving slabs or interlocking b

Determine the northing and easting coordinates, The northing and easting co...

The northing and easting coordinates for point C is most nearly:    Solution: Section the triangle and calculate using Pythagorean Theorem and the Law of Sine's or us

Determine the cubic yard in the ground, An earthwork contractor encountered...

An earthwork contractor encountered a location within the borrow area where the geological conditions changed.  Instead of encountering 100 cubic yards of wet clay, the contractor

Seasoning of timber, Seasoning of Timber It is a process by which moist...

Seasoning of Timber It is a process by which moisture content in a freshly cut tree is reduced to a appropriate level. The durability of timber is increased by doing so. The se

Explain hot weather patrolling, Q. Explain Hot weather Patrolling ? Hot...

Q. Explain Hot weather Patrolling ? Hot weather Patrolling is done for LWR and CWR tracks when the rail temperature reaches td + 20 0 C and above and td + 14 0 C for Central

Explain damage inspections - underwater inspection of bridge, Explain the D...

Explain the Damage inspections - underwater inspection of bridge? Sometimes referred to as post-event inspections, damage inspections are typically unscheduled inspections aime

Levelling, principle of direct levelling

principle of direct levelling

Properties of stones, Properties of Stones The following properties of ...

Properties of Stones The following properties of the stones should betake into account before choosing them for engineering works: Structure: The structure of the stone ca

Computer programming, compare 2 numbers and print either the message identi...

compare 2 numbers and print either the message identifying the greater than number(or) the message starting that both number are equal

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