Quality Control in Road Construction - Part 1, control of alignment and surface levels.
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- Опубліковано 1 кві 2023
- This video explains quality Control of alignment, Level and Surface Regularity for Rural Roads and Highways, as given in MoRD 2014 and MoRTH orange book 2013.
tolerance in alignment of a road.
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Sir I can't express my happiness from this lecture. I will never forget u in my life Sir. Thank you so much for such precious lesson.
It's my pleasure. I am happy to see you happy. There are many more good videos on my channel. Watch and comment. You may suggest new topic also.
@@SatishIITR sir in the new irc code (irc sp 135 2022) design of hot bituminous mixes there is a provision of film thickeness of Bitumen between aggregate to validate binder content. And it refers "Shell Bitumen Handbook" to understand the calculation of film thickness. Could you please make a video on this topic. And in this new irc sp 135 fines to bitumen ratio has also been changed to 0.8 to 1. Previously it was 0.6 to 1.2.
@@happening2023 Film thickness is not the criterion for deciding the OBC, it is a step for verification. I am currently making one video on Bituminous Concrete and will discuss these two points also. Thanks
Very informative video sir... I'll help me conducting inspection at site... Thank you very much...
Thanks, share with your friends also
Thank u very much sir much awaited series plz continue and make video series on sp20
Thanks. I started working on this topic only after seeing your suggestion. Please send the link to your friends also.
Nice
Thanks
Sir is it correct to spray stone dust containing lime or hydrated lime after laying and rolling of Bituminous Concrete??? Some are saying one should and some saying it's not good
sprinkling of dust+lime is done just to avoid loss of bitumen to the vehicle tyre if traffic is opened immediately after compaction of the layer. However, there is no such requirement as per specifications, but in that case traffic should be allowed after the mat has cooled down to ambient temperature.
The QC engineer told that as the bitumen heats up due to temperature or traffic, the bitumen will come up towards the road surface, then if you have put dust on it, it will not be a proper seal and if you have not put dust the surface will be properly sealed. The dust or lime doesn't have bitumen coating over it so it'll also create rutting and ravelling that's why you don't put lime dust on it is it correct ???
@@ramnivas734 completly illogical.
Sir as morth 5th revision is latest put only it's refrences in upcoming videos as it cretes confusion
5th Revision is of 2013 only and the same is referred in the video. Do not get confused.
Sir thank you for this video
Sir In order to perform sieve analysis of OGPC what sieves should be used for quality control purposes
And is there any prescribed limits of percentage passing of materials on these sieves
NO, in the case of OGPC, quanitites sepcified in the specifications is for 10 sqm area of the road and these are in volumes. For example, P22.4 and R11.2 should be 0.18 cum and P13.2 R 5.6 should be 0.09 cum for 10 sqm of road surface. If you take same specific gravity of the aggreates of two sizes, then their weight should be in the ratio of 2:1. It means Aggregates passing 22.4 and Retained on 13.2 should be 66 percent. But there is no mention in the MoRTH or MoRD book about this.
Thanks a lot sir 🙏. Sir how much deviation is permissible from the above mentioned 66 percent value.
@@nitusingh-io6jc No deviation suggested in any reference
Sir how is curve aligned in field
watch my video on Design of Horizontal curve.
Ok sir
Sir please describe IRC86 in hindi
IRC 86 and IRC 73 are under revision. I will make video on both separately. Thanks for the suggestion
2nd part
will work on second part also soon.
Sir please thoda samjhaya bhi kro aap reading si kr dete ho...
These are the codal provisions and to be followed in toto. Jis topic par samjhana hota hai wahe me detail me bit by bit explain karta hu. Thanks for your comments.
@@SatishIITR okay sir....But I mean jaise ess tha ki thickness agar base course ki km jyada hai to wearing course ki km nhi hona chaiye.....iska reason kya h aisa kyu krte hai thoda ess type se sir....
Sir please explain in simple manner by using Hindi ,only reading in English is not sufficient
Noted. Thanks