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    Jammu Ring Road Technical Points

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    pravin surve
    The document outlines important points regarding work on the Jammu Ring Road project, including contractor submissions, concrete mix designs, and pavement thicknesses. It notes requirements for cement content and water-cement ratios according to IRC standards and provides details of the concrete mixes used for PQC and DLC, including ingredients, strengths, and sections. Pavement thicknesses are specified for PQC, flexible pavement in the main carriageway, and flexible pavement in service roads.

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    Jammu Ring Road Technical Points

    Uploaded by

    pravin surve
    24 views2 pages
    The document outlines important points regarding work on the Jammu Ring Road project, including contractor submissions, concrete mix designs, and pavement thicknesses. It notes requirements for cement content and water-cement ratios according to IRC standards and provides details of the concrete mixes used for PQC and DLC, including ingredients, strengths, and sections. Pavement thicknesses are specified for PQC, flexible pavement in the main carriageway, and flexible pavement in service roads.

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    The document outlines important points regarding work on the Jammu Ring Road project, including contractor submissions, concrete mix designs, and pavement thicknesses. It notes requirements for cement content and water-cement ratios according to IRC standards and provides details of the concrete mixes used for PQC and DLC, including ingredients, strengths, and sections. Pavement thicknesses are specified for PQC, flexible pavement in the main carriageway, and flexible pavement in service roads.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    24 views2 pages

    Jammu Ring Road Technical Points

    Uploaded by

    pravin surve
    The document outlines important points regarding work on the Jammu Ring Road project, including contractor submissions, concrete mix designs, and pavement thicknesses. It notes requirements for cement content and water-cement ratios according to IRC standards and provides details of the concrete mixes used for PQC and DLC, including ingredients, strengths, and sections. Pavement thicknesses are specified for PQC, flexible pavement in the main carriageway, and flexible pavement in service roads.

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    © All Rights Reserved
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    IMPORTANT POINTS NOTED WHILE WORKING IN JAMMU RING ROAD

    1. Submissions from Contractor:


    a. Work Program and Cash Flow Statement
    b. QA/QC manual including method statements, test frequencies, plants and equipment,
    traffic management plan, check-list of item-wise work execution,
    c. Plan for erecting site offices, labor camps, mobilizing crushers, WMM plants, Screening
    plants, RMC and HMP plants, identifying borrow areas, stone queries, sand queries, and
    source approval proposals for various bought-out items.
    d. Plan for Tree and Median plantations.

    2. Cement content and W/C ratio as per IRC-44:2017 for PQC


    a. Maxm cement content (without flyash) = Not < 360kg/m3 & not > 450kg/m3
    b. Maxm cement content (with flyash) = Not < 310kg/m3 with maxm flyash = 25%
    c. Maxm W/C (without flyash) = Not > 0.45
    d. Maxm W/C (with flyash) = Not > 0.50

    3. Concrete Mix used:


    # Concrete Ingredients (PQC) Sec-1 Sec-2
    1 Cement-53 (Ultra-tech, Ambuja, ACC), kgs 368 332
    2 W/C Ratio 0.32 0.35
    3 Flyash (Govindwal, Amritsar-Jallander) GVK group 65 (15%) 84 (20%)
    Rate = Rs 1700/- per ton delivered at site
    4 Flexural Strength, mpa 5.30 5.17
    5 R value (compressive) 0.809 0.715
    R value (flexural) 0.838 0.879
    Concrete Ingredients (DLC) Sec-1 Sec-2
    1 Cement (same type and brands), kgs 127.50 136
    2 Flyash, kgs 34 22.5
    3 OMC, % 6.55 6.5
    4 Mdd, t/m3 2.218 2.279
    5 Slump, mm 0 0
    6 7 days strength, mpa 12 – 13

    4. Pavement Thickness:
    # PQC Courses Msa Thk (mm)
    1 Slab 33.50 mil CV 300
    2 DLC 150
    3 GSB (DL) 150
    4 Subgrade (Design CBR=8.4% minm) 500
    Actual CBR=12%
    # Flexible in Main Carriageway Msa Thk (mm)
    1 BC 40 40
    2 DBM 110
    3 WMM 250
    4 GSB 260
    5 Subgrade, (Design CBR=6% minm) 500
    Actual CBR=12%
    # Flexible Pavement in Service Roads Msa Thk (mm)
    1 BC 10 40
    2 DBM 65
    3 WMM 250
    4 GSB 260

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