sir, In IRC 37 -2018( in 7.2.1 in the second paragraph ) it is mentioned that the drainage layer is the upper layer of GSB where G3 and G4 gradings are recommended whereas in MoRTH these gradings are used in the lower sub-base layer. where we have to use the lower subbase or in the upper sub-base layer? please clarify
Kya hum road mein jaha meri thickness GSB ki 200 mm specify kar rakhi h tab mujhe kon c grading use karni h morth mein likha h ki 5/6 prefer karni chahiye drainage cum sub base k liye Toh road mein dono purpose full fill karna chahiye sub base bhi or drainage ka bhi Toh phir grading 1,2,3,4 kyu use karne ko bola jata h Jab ki grade 1 to 4 only sub base purpose k liye use hoti h Clarify please
What is separation/filter layer. In my drawing 200 mm thickness is given. For your point of view suggest me the grading of GSB. Is grading 3 & 4 is suitable for this?
road bnne ki step wise step kya kya hoti h...for bt road and cc road ka video upload kijiye...kuki proper road kese bnti h uska process kahi ni mil raha...ak ak layer kese dali jati h
th-cam.com/video/uHwY5PRN03Y/w-d-xo.html this may be help you for Asphalt pavements Construction....soon I will made a video for Rigid pavements Construction...thanks
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Why grade-3 & grade-4 of GSB are used pavement layer. and Why grade-1,2,5 & 6 are used in filter / separation layer. and If the one layer GSB grade -3 of 1mm & one layer of GSB grade-5 of 100 mm is used then will total crust of the GSB shall be counted as 200 mm or 100 mm only.
Sir In my project i was used Grade 1, Thicknes 100mm , 100mm in two layers. This is right or wrong. As per yours video information only used 3 and 4 Grade.
Main difference is the permeability, G3 and G4 have permeability more than 300m/day(which is mandatory for a layer to be used as a drainage layer), that's why they are recommended in the drainage layer.
*GSB* Cl. 7.2.1 of IRC 37 2018 suggests Gr-III & IV of MORTH specifications for drainage layer. And Gr. I, II, V, VI for filter/separation layer. But Cl. 401.2.1 of MORTH specifications suggests Gr. V, VI for sub base cum drainage layer and Gr. III, IV for lower sub base. Can you please clarify this confusion
sir, In IRC 37 -2018( in 7.2.1 in the second paragraph ) it is mentioned that the drainage layer is the upper layer of GSB where G3 and G4 gradings are recommended whereas in MoRTH these gradings are used in the lower sub-base layer. where we have to use the lower subbase or in the upper sub-base layer? please clarify
Brilliant sir
Bahut achha sir thanks u
Sir thanks for helpful information
What is Filter layer & Drainage layer .....plse Suggest
Thanks sir🙏🙏🙏
Kya hum road mein jaha meri thickness GSB ki 200 mm specify kar rakhi h tab mujhe kon c grading use karni h morth mein likha h ki 5/6 prefer karni chahiye drainage cum sub base k liye
Toh road mein dono purpose full fill karna chahiye sub base bhi or drainage ka bhi
Toh phir grading 1,2,3,4 kyu use karne ko bola jata h
Jab ki grade 1 to 4 only sub base purpose k liye use hoti h
Clarify please
Greatly explained
Sir 100mm k liye 2.5 times krte hain to 150mm laye k liye how much time krte hai reply?
What is separation/filter layer. In my drawing 200 mm thickness is given. For your point of view suggest me the grading of GSB. Is grading 3 & 4 is suitable for this?
Use grading 4/5
GSB ka proctor compaction test kaise karte hain batayiye is code and IRC ke saath
th-cam.com/video/u6piQja4GY4/w-d-xo.html
Good sir g
Sir qa/qc Engineer ke liye koi course ragega kya
How to select the nominal size of aggregates in any particular grade i.e Grade -IV or Grade-V gsb
Nominal size of aggregate tik se clear nhi hua h... confusion h sir ..1 design example per video bnao sir
Please sir ek video banaiye mix design of gsb ka
Plz make a video of CRM
sir pqc ki layer ke hisab se aggregate size ke se use karte hai
Depend on Grade of concrete...
Max. Size 31.5mm
Nice
Respected sir ...
150 mm granular sub base ke liye kya preposition Hona chahiye ...60 ,40 %
Grading 1 & 2 kha use krte hai
Filter media
Please make tutorial on flexible pavement design as per IRC 37 2018,(IIT PAVE)
How to find out compaction of WBM & bitumen content of PC SC
road bnne ki step wise step kya kya hoti h...for bt road and cc road ka video upload kijiye...kuki proper road kese bnti h uska process kahi ni mil raha...ak ak layer kese dali jati h
th-cam.com/video/uHwY5PRN03Y/w-d-xo.html this may be help you for Asphalt pavements Construction....soon I will made a video for Rigid pavements Construction...thanks
Join Us on Telegram and Get many important Information,pdfs,Excel sheet, civil engineering and highway construction related videos and real time discussion with our Experience Highway Engineering Personal,lets join immediately from given link
t.me/Highwayengineer
I want to know about GSB design totally
What is filter layer
Sir gsb ki size kya kya hoti hai
Sir gsb gr 2 mixed design.....plz.....
Why grade-3 & grade-4 of GSB are used pavement layer.
and
Why grade-1,2,5 & 6 are used in filter / separation layer.
and
If the one layer GSB grade -3 of 1mm & one layer of GSB grade-5 of 100 mm is used then will total crust of the GSB shall be counted as 200 mm or 100 mm only.
Sir
In my project i was used Grade 1,
Thicknes 100mm , 100mm in two layers. This is right or wrong.
As per yours video information only used 3 and 4 Grade.
What is given in BOQ
Where is the project.. Highway or Rural road.
No Show in CA Grade of GSB, only show 100 mm two layers
Sir what is the difference between all 6 grades of gsb.
Size and there uses
Main difference is the permeability, G3 and G4 have permeability more than 300m/day(which is mandatory for a layer to be used as a drainage layer), that's why they are recommended in the drainage layer.
If you don't have information about a particular topic, it is better to don't misguide others.
*GSB* Cl. 7.2.1 of IRC 37 2018 suggests Gr-III & IV of MORTH specifications for drainage layer. And Gr. I, II, V, VI for filter/separation layer.
But Cl. 401.2.1 of MORTH specifications suggests Gr. V, VI for sub base cum drainage layer and Gr. III, IV for lower sub base.
Can you please clarify this confusion
ok brother i will make a short video for this