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

Enumerate about the bonded member, Enumerate about the Bonded Member It...

Enumerate about the Bonded Member It is a concrete member in which tendons are bonded to the concrete. They may be directly bonded to the concrete as in the case of pre-tension

Calculation of crack widths arising from thermal movement, Q. Calculation o...

Q. Calculation of crack widths arising from thermal movement In the calculation of thermal movement, the below formula is used in most codes: w max =s x a x (T 1 +T 2 )/2

Designing level of landings in piers, Question What is designing leve...

Question What is designing level of landings in piers? Answer Landings are designed as resting place for passengers throughout berthing and deserting of vessels. I

Bond breaker for joint sealant, Joint sealant must be designed and construc...

Joint sealant must be designed and constructed to allow free extension and compression during the opening and closure of joints. In case joint sealants are attached to joint filler

Process of installation of elastomeric bearing, The process of installation...

The process of installation of elastomeric bearing differs in case of precast vis-a-vis cast-in-situ girders. For precast girders, the bearing may be fixed to the underside of the

Determine about the tensile stresses, Determine about the tensile stresses ...

Determine about the tensile stresses Unifody prestressed members designed for equal flexure in opposite directions,without permitting tensile stresses under working loads, requ

Construction measurment, calculating quantity of excavation, formwork, conc...

calculating quantity of excavation, formwork, concrete

Estimation of discharge, Estimation of Discharge: The estimation of d...

Estimation of Discharge: The estimation of discharge of a stream is necessary for determining the waterway, clearance and foundation details. Discharge is estimated from :

Surveying, readings of longitudinal and cross section levelling

readings of longitudinal and cross section levelling

Structures, Derivation of Moment-Area Method

Derivation of Moment-Area Method

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