#Marshall

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Bituminous mix design, Marshall Method, Stability and flow test, density-void analysis, Mix Design procedure, #VMA, Voids in Mineral Aggregate, Air voids in a mix, How to calculate air voids in a bituminous mix, Voids filled with bitumen, VFB, Optimum binder content in a mix, NAPA method of mix design, MS-2 method of mix design, Asphalt Institute method of mix design, Indian method of bituminous mix design, HMA mix design parameters, Effective binder content in a mix. Marshall Stability Test.
This video illustrates the Marshall method of Bituminous Mix Design. It gives some important hints on the importance of different mix design parameters to achieve a durable and correct mix design.
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[@keshavsikhwal866]

your hindi videos are very close to our heart keep making , may you start to make a series on laboratory test of bituminous material please, it is basic course in mtech course work .so it will be helpful for all of us🙏🙏

[@SatishIITR]

Thanks Keshav for the suggestion. I will certainly cover a few tests on bituminous materials and but a bit advanced ones. I dont thick tests like penetration and sofetning point need to be discussed here. What do you say? Planning videos on Elastic Recovery and MSCR tests soon.

[@keshavsikhwal866]

Thankyou sir for your valuable time. Sir, we can cover contact angle test for hydrophobic emulsified asphalt, rotational viscometer test, moisture sensitivity test etc . Sir please give us your guidance to understand the principle behind these experiments and process🙏🙏

[@keshavsikhwal866]

Thank you sir for mscr test and elastic recovery test ..

[@SatishIITR]

Ok, will do. @@keshavsikhwal866

[@sarveshtripathi4792]

Informative and useful for field engineers. Tq sir! .

[@SatishIITR]

Thanks a lot, keep watching

[@keshavsikhwal866]

great video sir, very helpful

[@SatishIITR]

So nice of you. Keep watching

[@AnilSingh-g1j]

Excellent 👍

[@SatishIITR]

Many thanks. Keep watching

[@SatishIITR]

Many thanks. Keep watching

[@irshadahmed3406]

Good & informative video. Please add reference as per MS.02 In the Middle East, all mix designs are followed by MS.02, which is a reference standard that includes guidelines for the design and production of asphalt mixtures. These guidelines are based on international standards such as ASTM and ASHTOO. Thanks

[@SatishIITR]

I understand the procedure in MS2 is not vey different. We are also following MS2.

[@gurugaming1450]

Like who have tomorrow exam,🎉🎉

[@SatishIITR]

Yes, very useful for competitive exams.

[@purushottam93]

Hello sir, myself Prushottam Kumar from Bihar currently working in a private firm as a Quantity Surveyor for highway projects. BTech civil engineering graduate 2014 from Cochin University of science and technology. I have a keen interest in highway pavement design like Design of earthworks layer, embankment and subgrade, gsb and wmm layers, dbm and bc layers , with step by step procedure with given condition. During BTech, I have performed several tests on soil, aggregate and bitumen. I am thinking of mtech from transportation engineering from nit or iit. Your videos are conceptual, crystal clear with the thoughts. 🙏🙏🙏🙏

[@SatishIITR]

Thanks for your detailed message. I wish you all the best for getting admission in the institute of your chice for your M. Tech program

[@mohitrajaram007]

Thanks for your unique explanation

[@SatishIITR]

Thanks 😊

[@manojkumar-ky1iy]

Really excellent explanation sir. You cleared so many doubts by your lecture by easy means. Thanks a lot Sir. Will you please make a video for gradation explaining close grade ,Open grade and gap grade by using Fuller’s equations and plotting it’s graph.🙏🙏

[@SatishIITR]

watch this video and write your comments kzbin.info/www/bejne/rWKnoqaNaM6erqM

[@Aatmohm]

Thanku sir

[@SatishIITR]

Keep watching

[@thefighter4105]

Very informative lecture thank you sir

[@SatishIITR]

Most welcome, keep watching

[@goelamit]

Great initiative Sir... regards

[@SatishIITR]

Thanks 😊

[@yasawantsinghyadav2406]

Very nice video sir for QA Qc

[@SatishIITR]

Thank you so much

[@cherrychinnu]

excellent vedeo

[@SatishIITR]

Thanks. Its english version is also available. Watch here. kzbin.info/www/bejne/fWnLo5aer7Cbabc

[@Challenging_Boy456]

Very good Sir🎉

[@SatishIITR]

Thanks for liking

[@user-ue2uz7hy4l]

Nice lecture sir

[@SatishIITR]

Thanks. Keep watching

[@bssomeshwar6892]

Dear sir, I am somesh from Tamilnadu, for BC-2 the minimum binder content as per Mort&h & IRC SP:2022 but in the case of PMB as a minimum binder content 5.6% as per IRC:SP:053-2010. So please suggest the minimum binder content in the case of modified bitumen.

[@SatishIITR]

Hi Somesh, I cannot suggest anything outside the IRC codes. Take the one which is suggested in the latest IRC code.

[@bssomeshwar6892]

@@SatishIITR Thank you sir.

[@SartajKhan-kt1se]

Dear sir how we are control loss of stability in Asphalt wearing Coarse it is coming More than limit percent

[@SatishIITR]

You mean retained stability is less than code value. It shows that there is problem in the binder. Stability loss indicates the stripping in the mix. Either increase the fine content or use some anti-stripping agent.

[@civiltechnoharyana7850]

In my project location area , temperature goes to maximum 47-49 C but in contract bitumen grade mentioned Vg-30 Is it wrong or should he changed according to actual weather temperature please clarify

[@SatishIITR]

No, VG 30 is not suitable under this climate. Watch my latest video on Selection of binder grade at kzbin.info/www/bejne/nYm8l2Wlrq6Lra8 to get the answer to your question.

[@civiltechnoharyana7850]

Sir what is the difference between drum mix and batch mix design mix please explain

[@SatishIITR]

A batch mix plant produces finished mixtures in batches with short intervals, whereas a drum mix plant can continuously produce mixtures without any interruptions. Both are in use and both have advantages and disadvantages depending upon the size and type of the job.

[@chandrasekharpradhan1451]

Sir, You did not mention how to take 1200 gms sample from which sieves.

[@SatishIITR]

That will depend on type of mix. This is the material of the final mix after mixing different aggregates

[@aejazwani4515]

Dear respected sir , Please explain why we provide voids in bituminous mixes , These are for what purpose??

[@SatishIITR]

Two reasons. (1) the layer cannot be compacted to zero air voids, neither in the lab nor in the field and therefore, there will always be some air voids, and (2) Air voids in a layer provide some space for secondary compaction in the field (compaction due to moving traffic) which is needed to avoid cracking and bleeding in the pavement,

[@aejazwani4515]

Thanks alot sir

[@TEG_IITR]

very nice sir🙏

[@SatishIITR]

Keep watching

[@yasawantsinghyadav2406]

Very nice sir

[@SatishIITR]

Thanks and welcome. Keep watching

[@randomshit6070]

Sir I'm using 5% river sand for filler material and 5% bitumen (60gm) Result is Stability= 758kg Flow value = 3.24 Why stability is so much low? After rammering the sample i kept it for 22 hours in room temp. Then kept in water bath at 65°c for 35 minutes Where am I making mistakes? Please give me some guidance

[@SatishIITR]

Sand is not permitted in a bituminous mix. River sand can contain clay and that will affect the adhesion

[@randomshit6070]

@@SatishIITR sir, actually I just started working on my thesis and topic is "effect of glass fibres on bituminous mix " Is it compulsory to use filler material? What if I don't use any filler material and simply mix bitumen with mix design aggregates (fine and coarse)

[@SatishIITR]

@@randomshit6070 Any material passing 75 micron sieve is a filler material. The final grading should have some material passing this sieve. It may be stone dust, lime or cement, but not the sand.

[@civiltechnoharyana7850]

And sir what is the cause of rutting in bitumen layer and why this occurred please explain

[@SatishIITR]

I have uploaded one video on this topic. It explains rutting in detail. Watch it here kzbin.info/www/bejne/f5mlhIOoat-Dp80

[@gurugaming1450]

Tq so much sir❤❤

[@SatishIITR]

Welcome, keep watching

[@anshR-ll9hi]

Sir very informative video . How to bring down flow in DBM & DAC -1 design?.

[@SatishIITR]

Flow can also be controlled by either changing the fine content or the binder content. Higher flow value indicates higher binder content. Reduce it slightly to get flow in limits.

[@anshR-ll9hi]

Thank you sir

[@anshR-ll9hi]

Sir does presence of Natural sand in crushed sand affects Flow? How to check if natural sand is mixed with crushed sand.?

[@civiltechnoharyana7850]

Sir can you describe how to calculate fines to bitumen ratio of any mix design

[@SatishIITR]

percent passing 75 micron divided by optimum binder content (F/B)

[@civiltechnoharyana7850]

⁠@@SatishIITRthanks sir One more thing sir suppose in any design mix of stone dust ratio is 38% and bitumen content 4.5 % and filler is 2 % then if I want to calculate bitumen fines ratio then I need 75 micron passing percentage of dust and filler both and sum of both and divide by 4.5% ( bitumen content) is it right sir ?

[@civiltechnoharyana7850]

Please reply

[@SatishIITR]

@@civiltechnoharyana7850 You should consider the final grading after mixing aggregates of all stockpiles and then see what is the percent passing at 75 micron sieve to find F-B ratio

[@paruchuriraghuvamsh6058]

Sir this year gate exam will be conducted by IIT ROORKE any tips sir please

[@SatishIITR]

No tips. It doesn't matter which IIT is organising.

[@neelpatel1333]

Sir, bitumen ki ductility test me bitumen pouring temperature '75 to 100 degree above softening point' likha hai iska matlab?? E.g if softening point 50° hai ,to bitumen ko 50+75=125° Tak garam karna hai??

[@SatishIITR]

Yes, generally it is 100 + SP

[@neelpatel1333]

@@SatishIITR likewise they have also mentioned the same in (i.e 75 to 100°c above softening point).so in this test how we will calculate temperature since we haven't conducted softening point test yet

[@SatishIITR]

@@neelpatel1333 Approximate SP is known for a given grade of binder. You do not need to be very specific

[@neelpatel1333]

@@SatishIITR thank a lot sir.

[@saikumarnandhigama842]

Sir As per IRC 37 2018 air voids should be 3.5% and as per morth 4% which should follow ?

[@SatishIITR]

when DBM is laid in two layers, the lower layer is designed for 3.0 percent air voids keepling little higher binder content. The upper layer is designed for 4 percent air voids. For the single layer DBM, the recommended target air voids in the design is 3.5 %

[@saikumarnandhigama842]

@@SatishIITR tnq sir for your clarification 🙏

[@civilpoint0855]

Sir 1200 weight mould information

[@SatishIITR]

I could not understand your point.

[@civilpoint0855]

Sir, it is written that 1200 gm mold weight should be taken. Is code ya astm or ms-2

[@SatishIITR]

@@civilpoint0855 It is the weight of the material required to make one Marshall sample of normal size. It is mentioned in all codes

[@ab9276]

How to find OBC from graphicap plot

[@SatishIITR]

OBC is taken corresponding to 4 percent air voids and then all other parameteres are checked at this binder content.

[@ab9276]

@@SatishIITR ok thank you sir😊

[@a_d_arsh]

sir, can we use Marshall mix design for MSS?

[@SatishIITR]

MSS is a thin layer surfacing with no structural strength. It is a recipe type mix and not designed in the laboratory. Marshall method is used for structural layers only.

[@brahma6102]

Sir video hindi me hi bnaiye please 🙏

[@SatishIITR]

Thank you so much for your suggestion

[@AmitKumar-ky6xm]

Loose mix me kitna kitna percentage lere ho is per video bnao direct loose mix dal ke aadha gyaan mt do guru ji ye btao kitna kitna percentage lere ho kese kya

[@SatishIITR]

आपका सवाल कुछ clear नहीं है। मार्शल सैम्पल बनाने के लिए 1200 gm loose मिक्स ही तो है।

[@muhammadmurtaza6639]

Sir please provide pdf.

[@SatishIITR]

PDF of what?

[@aloklilhare2321]

I have exam in an hour

[@SatishIITR]

All the best 👍