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Msesi, Could you please enlighten the soil description including the PI, % down 0.075 mm sieve, maximum size, etc? Why are you stabilising for? Is the material well graded? Actually, there are some materials which are not fit or economical for stabilisation, but in most cases, African soils...

The lab test result you got, i.e/, 5-6 % is normal. Then, you have to adjust this 5-6%, based on the portion of materials passing 0.425 mm sieve, as it is only the finer materials which are considered as interacting with lime or cement.

In our Specification there is a requirement which says, ‘the aggregate shall meet the sand equivalent (clay content)requirements… minimum sand equivalent percent 40 …’. If we see the sand equivalent formula, which is 100*sand reading/ clay reading, the higher the sand reading during testing...

SMF1964, Thank you, SMF1964, actually I am doing a test on cutback bitumen (I think cutback bitumen is no more in use in USA and other countries). For cutback bitumen we test Saybolt viscosity at 50°C and Kinematic viscosity at 60°C (in our case) or at 135°C. The 70-140 cSt is for kinematic...

I recently tested MC - 70 (Medium curing cutback) using saybolt viscometer. I got a result of efflux time of 50 sec @ 50 oC temp.; while the Specification says 60-120 sec. Using a conversion table of Furol to kinematic viscosity; the 50 sec is approximately equal to 105 Centistokes and for MC -...