As per Kandal suggestions, we have implemented rolling starts on 140 (+/- 5) degrees and we kept 3 rollars to complete the rolling before falling 125 degrees and the Aggregate AIV is below 22. But When the DBM bed is being rolled 3rd high viabration, (Before 1 plain & low ,2 high Viabrations), the aggregate is getting sharp edge agg. projections are damaged. As the literature is said that, the VG-30 Grade having better control the temp. susceptibility than Penetration grade. if so we could not get this problem at site. But we are facing on site. let me know.

0 Answers  

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why 50% more is assumed while calculating dry volume of coarse and fine aggregates in concrete calculations.whether 50% more is correct? How is it decided? whether the same is applicable to cement volume. Also what about cement mortar dr volume? How much more is to be considered for dry volume of mortar.

1 Answers  

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What is anchorage length

1 Answers   ABPL, SBDL,

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plz. how many times required for compacting subbgrade in road way & how many water required?

1 Answers   Sail,

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Mixing of cement, sand & stone chips with oil will not give strength because ––

2 Answers  

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How many weight per 1meter cube of concrete for column.

4 Answers   JK Lakshmi Cement,

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How much block, cement,sand,is required for 1 sqmt of 200*200*400 block work

2 Answers   CCCL,

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What is the cemnent ratio

0 Answers   DPR,

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How many number of chairs required per Smt.

3 Answers  

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How can we convert weight batch to volume batch for m30 mix

0 Answers   VKL,

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1)Why we can use half brick in 4inch wall and 2)why not in 9+inch brick wall

0 Answers  

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IN LOW RISE BUILDING PER SQ FT HOW MANY MATERIAL REQ. SAND &CONCREATE&CEMEBT

1 Answers   ZCL,

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