SUMMARY OF THE SECOND CHAPTER : SOIL TESTS FOR HIGHWAY PURPOSES

SUMMARY OF THE SECOND CHAPTER : SOIL TESTS FOR HIGHWAY PURPOSES

Soil engineering is vital within civil engineering. The properties of a soil influence and affect a structure when being built and as a result the soil must be tested before designing

We end this chapter of "soil tests for highway purposes" with our 8 posted tests , and our next stop is " Mix Design of Concrete ACI 211"

A minor reminder of what the posted tests in this photo 

Test#7: Flakiness And Elongation in accordance to BS 812-1975

Test#7 : Flakiness and Elongation in accordance to BS 812-1975
-This test method describes of the flakiness index of coarse aggregates that are classified as flaky when they have a thickness  less than 0.6 of their mean size.-This test method also describes the determination of the elongation of the coarse aggregates that are classified as elongated when they have a length of more than 1.8 of their mean sieve size

Test#6: Organic Impurities in Sand ( AASHTO T21/ASTM C40)

Organic impurities in sand (AASHTO T21/ASTM C40)
The method provides a good estimate of this type of organic matter , and when the soil contains only this type, it can also provide a good estimate of the total organic content.However the reagents used to react only very slightly with fresh plant materials such as wood , roots , and weed tops etc.., or with hydrocarbons , charcoal, lignite, coal and the organic remains in ancient sediments. If such materials are present, and the total organic matter is to be determined , then the "LOSS ON IGNITION" T 267 method must be used 

Test#3 Specific Gravity

Test #3: Water Absorption For(Coarse Agg.-Medium Agg.-Crushed Sand-Natural Sand)

            Specific gravity & Absorption & Dry rod mass (ASTM C 642 -90 -AASHTO T 19M-93)

This test  method covers the determination of specific gravity & percentage  of absorption & dry rod mass of Fine & Coarse aggregates