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

Surveying, define traverse.purpose of traverse, procedures of traverse, tak...

define traverse.purpose of traverse, procedures of traverse, taking linner measurment, types of traverse, convert the following quardnatal bearing to wcb. 1.OA= N15 deg10mins ''E,

Define the types of shock transmission unit, Define the Types of shock tran...

Define the Types of shock transmission unit? Presently two types of STUs are available in the overseas market: (a) Silicon putty based from UK and USA. (b) Oil based from

Couple, Properties of a couple

Properties of a couple

Base of concrete retaining walls, Q. Granular fill or rock fill essential a...

Q. Granular fill or rock fill essential at the base of concrete retaining walls? It isn't uncommon that rock fill layers and granular fill layers are placed beneath the bottom

Properties of matter, Properties of Matter: Due to surface tension,...

Properties of Matter: Due to surface tension, the free surface of a liquid behaves like a stretched elastic membrane tending to contract so as to have minimum surface area.

Explain the critical depth, Explain the Critical Depth d c is the dept...

Explain the Critical Depth d c is the depth of flow in an open channel that has the lowest energy.  In rectangular open channels:  (d c ) 3 = Q 2 /g(w) 2 In nonrectang

Strength of materials, An I-section beam 350*200mm2 has a web thickness of ...

An I-section beam 350*200mm2 has a web thickness of 12.5mm & a flange thickness of 25mm. It carries a shearing force of 200KN at a section. Sketch the shear stress distribution acr

Basic things used in road construction, Basic things used in road construct...

Basic things used in road construction: Water Absorption : The quantity of water absorbed by aggregates. Aggregate Impact Value : The percentage by weight of crushed ma

Designing sewer pipes, Question While designing sewer pipes , why vitrifie...

Question While designing sewer pipes , why vitrified clay pipes commonly is used for pipe size less than 600mm still as precast concrete pipes with PVC lining is used for pipe

Centroid, how tofind centroid of cercular arc

how tofind centroid of cercular arc

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