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Granular sub base, Design of mix for GSB layer, California Bearing Ratio, CBR, Functions of subbase layer, composition of subbase layer of a flexible pavement, grading of material, proportioning of aggregates for GSB layer, Minimum Thickness of Subbase layer, MoRTH 2013, Modified Proctor's Test, Testing of aggregates for GSB, Requirement of a GSB layer material, Flexible Pavements.
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Опубликовано:

23 авг 2024

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Комментарии : 50

@abdheshsinha2984 2 года назад

Thank you sir for this informative lacture. You have cleared the doubts of CBR sample preparation and grading of GSB.

@SatishIITR 2 года назад

It's my pleasure

@SatishIITR Год назад

@@qualitycontrolengineer8348 No, I did not say these are not used in GSB mix. I said that for getting the gradation of GSB, in the given example case, aggregates of 20 mm and 6 mm are not needed. It all depends on the grading of aggregates of different sizes available at site. The final mix should conform to MoRTH grading. I hope it is clear.

@abdulsaboorsakhizada8974 11 месяцев назад

Wonderful! Thanks!

@SatishIITR 11 месяцев назад

Glad you liked it! Keep watching

@poothibabu Год назад

Thank you sir.. I was searching for a class with English language .. Good ppt and Good Class sir🌹🌹🌹

@SatishIITR Год назад

Thanks, there are many more to watch.

@prathibhaumapathi9771 2 года назад

I have no words to express my gratitude sir ! 🙏🙏🙏

@SatishIITR 2 года назад

Thank you so much. I am happy to note that you liked it.

@dr.kayitharavinder6383 2 года назад

Excellent lecture, very much useful for all the civil engineers, highway and transportation professional s.

@SatishIITR 2 года назад

Many thanks

@drpradeepkr 2 года назад

Just fully watched, one more very informative and useful video, thankyou sir.

@SatishIITR 2 года назад

Thanks. Keep watching and share the link in your groups.

@civillaboratorytest 8 месяцев назад

Super information sir

@SatishIITR 8 месяцев назад

Thanks and welcome. Keep watching

@civillaboratorytest 8 месяцев назад

@@SatishIITR sir please make video for filter media mix design

@YogendraSingh-yt8lm 2 года назад

Very nice & explicit explanation. Pls. upload more videos related to highway construction.

@SatishIITR 2 года назад

please visitmy channel and you will find many. Last Sunday (19 June) I uploaded the video on Warm Mix Asphalt.

@MukhlidMusa19 2 года назад

very good lecture..please keep posted us with good transportation lectures.

@SatishIITR 2 года назад

Thank you Mohsin, I am trying to pick up typical topics only. You may also suggest if you want any special topic to be covered here.

@harshshah4033 2 года назад

Thank you sir for this very helpful lecture. Plz make video on WMM mix design for flexible pavement.

@SatishIITR 2 года назад

Ok, noted. There are many more videos on highway Engineering which are available on my channel. You may like to watch them also.

@harshshah4033 2 года назад

@@SatishIITR Ohk sir.

@AlokSingh-fk2cf 2 года назад

Sir very very helpful ....thanks

@SatishIITR 2 года назад

Thanks. Please forward the link to your friends and colleagues also.

@hozhetoshikhu250 Год назад

👍

@SatishIITR Год назад

Thanks, keep watching

@swapnilpatil8644 2 года назад

Mack more videos like this sir thanks

@SatishIITR 2 года назад

Sure, many more will come. please share the link in your group also.

@swapnilpatil8644 2 года назад

@@SatishIITR ok sir

@abhijeetpangavhane6444 2 года назад

Very Informative lec sir I have one question Why it is necessary to avoid broken back curve while designing horizontal alignment

@SatishIITR 2 года назад

broken back curves are too closed spaced and therefore sight distance becomes a problem.

@PRADEEPKUMAR-ec5jq 2 года назад

Thank you sir for this valuable video. Sir how do we test unconfined compressive strength of GSB mixes?

@SatishIITR 2 года назад

UCS can be determined as per ASTM D 1633. You need to apply vacuum to retain the shape of the sample.

@happening2023 Год назад

Sir i have one doubt. As we conduct mdd/omc test we apply 55 blows for each layer. Therefore to get 98% of MDD how many blows per layer should we apply when casting CBR mould.

@SatishIITR Год назад

CBR mould is casted as per standard procedure at OMC.

@milindjamble7987 2 года назад

The MoRTH recommended GSB grading are low on permeability. However IRC 58 provides guideline for US grading. This doesnt match with Morth grading. Also the design method for drainage layer given in IrC 58 is for rigid pavement and not flexible. Practically designer have no option to design GSB for flexible pavement other than accepting minimum thickness of 200mm as recommended. Since drainage layer is an important element is there a method for designing gsb for flexible pavement with appropriate permeability? Also especially when we are now constructing wider pavement for expressways.Kindly advice.

@SatishIITR 2 года назад

when you lay GSB in two layers, the lower layer of 100 mm thickness acts as drainage layer. You can certainly use the philosophy of design given in IRC:58 to design this layer.

@Bisciv Год назад

Good afternoon sir Sir in mord specification for rural road grading of gsb is different from morth specification for road and bridge for grading I/II/lll 1.Sir which gradation we need to follow for PMGSY works? 2.why gradation for gsb is different in mord and morth? Regards

@SatishIITR Год назад

already replied to you on Linkedln

@Bisciv Год назад

@@SatishIITR yes sir thank you Regards

@prpt2407 Год назад

Kindly clarify here also..we also want to know..

@muhammadzaidhasan1426 Год назад

Grading 3 and 4 are gap graded or open graded sir?

@SatishIITR Год назад

Gap graded. The necessaty condition for an open grading is stone on stone contact. Watch my video on Open Graded Friction Course and another one on SMA

@NMVedpathak Год назад

Respected Sir What will be the blending percentage of aggregates for grading 3 /4 . Please guide.

@govindarajv5713 2 года назад

sir, upper sub base layer is drainage layer? pls check

@SatishIITR 2 года назад

Thanks for poiting it out. Will check.

@govindarajv5713 2 года назад

sir, awaiting for your response

@SatishIITR 2 года назад

@@govindarajv5713 Yes, you are correct. If GSB is laid in two layers of then the top layer will act as a drainage layer. It is mentioned in the video also. I checked.

@govindarajv5713 2 года назад

thank you sir for prompt response