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

Basic keywords related to road materials, Basic Keywords related to road ma...

Basic Keywords related to road materials: Sub-grade     :            The portion of road embankment immediately below the pavement. Soil Classifications :            A sy

Chemical prestressing, Chemical prestressing In prestressed concrete, ...

Chemical prestressing In prestressed concrete, normally tendons are stretched and are retained in a stretched condition by concrete. Consequently, concrete comes under compres

BUILDING CONSTRUCTION, GIVE IN DETAIL THE TREATMENT OF TOP SURFACE OF EARTH...

GIVE IN DETAIL THE TREATMENT OF TOP SURFACE OF EARTH FILLING..

Show ph value of water, Q. PH Value of Water? It is a symbol for hydrog...

Q. PH Value of Water? It is a symbol for hydrogen ion concentration and indicates acidity or alkalinity. When P H Value more than 7 water is alkaline and less than 7 water is a

Explain equation for change interval, Explain equation for Change Interval ...

Explain equation for Change Interval y = t + v / 2a + 64.4G Where:  y = length of yellow interval (sec)     t = driver perception/reaction time (1.0 sec generally used)

Difference between normal bolts and high friction grip bolts, Question ...

Question What is key difference between normal bolts and high friction grip bolts ? Answer High friction grip bolts are usually used in structural steelwork. They i

Air infiltration, Using Matlab/ Simulink software, verify the heating requi...

Using Matlab/ Simulink software, verify the heating requirement (kW) for the building because of  air infiltration and natural ventilation. Note that this needs you to estimate air

Determine the soil shrinkage, Soil at a borrow area has a total unit weight...

Soil at a borrow area has a total unit weight of 120-PCF and a water content of 15 percent.  The soil from the borrow area will be used as structural fill and compacted to an avera

Types of cement, Types of Cement In addition to ordinary Portland ceme...

Types of Cement In addition to ordinary Portland cement there are various varieties of cement. Significant varieties are briefly explained below: (i) White Cement: The ce

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