Dnyan Deshmukh

Dnyan Deshmukh

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Administrator From Pune
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  • Asokan S
    Dear Sir,

    One of our client asked the ratio for cylinder/cube is 0.8 in harden concrete after 28 days. But in is 456 cylinder/ cube ratio for core sample is 0.8.but as per ASTM, ACI for higher grade minimum cylinder strength should be Fck of the design. Is there any reference for ratio 0.8 or it is compulsory cylinder/ cube 0.8 is must?

    Kindly clarify


    Thanks & regards
    ASOKAN.S
    Dnyan Deshmukh
    Dnyan Deshmukh
    The carried load by a cube and cylinder varies for same grade due to height. you can make a concrete and cast few cubes and few cylinders and then do comparative testing for minimum 30 trials. You will arrive to something similar.
    Fakhr Rizvi
    Sir,
    There is a question,
    What is apparent specific gravity and how it differs from specific gravity?
    Dnyan Deshmukh
    Dnyan Deshmukh
    All materials do have voids in it, calculation of specific gravity do take long time when the material goes denser with less voids.

    Apparent specific gravity is the one which is calculated without reducing the volume of voids.
    Dnyan Deshmukh
    Dnyan Deshmukh
    Specific gravity is calculated using pycnometer bottle.

    To calculate exact specific gravity, say for aggregates, one need to make aggregate in SSD condition by immersing them in water for at-least 24 hours before test.
    Valmiki
    Dear Sir,
    As in the fourm you're the active person and on regular bases you are guiding many of us by clearing our practicle queries. So just becoming more greedy can't we have webbinar series till the lock down time..
    We can Ensure quantity time in the fourm

    Thanks and Regards
    Raghavendra
    Mob 9620045283
    Dnyan Deshmukh
    Dnyan Deshmukh
    Thank you for doing appreciation, your idea is good but trust me, peoples do not take interest.
    its very difficult to find like minded peoples.
    Fakhr Rizvi
    Fakhr Rizvi
    Yes... Deshmukh Sir,

    Please if you and guide on any aspect.. Like concrete defect and remidies Or Cracks types, classification, remidies and post remidies checks etc.

    Will be very thankfull to you.

    Regards
    Fakhr Rizvi
    8076434071
    Nallathambi
    Dear sir ,
    can you please tell with... how to prepare inspection test plan...?
    Dnyan Deshmukh
    Dnyan Deshmukh
    To prepare ITP you need to have the detailed specifications of your project and requirements along with IS codes. You can then freeze the methods, frequency and parameters for each material / process. you can find sample ITP in Quality section at forum. explaining requires a big article to be written. will try to write an article on how to prepare ITP in future.
    ahmadtppu
    Sir,
    Can u share all types of QA/QC Major documents and
    Forms for study
    View previous comments…
    ahmadtppu
    ahmadtppu
    Are Inspection Test Report (ITP) and the QC Report same .??
    Dnyan Deshmukh
    Dnyan Deshmukh
    ITP stands for inspection and test plan which is a document which had plans for doing testing at site and at third party labs - it defines frequencies of test, test to be conducted and acceptance limits along with referred specs and codes.
    QC report stands for Quality Control Reports which consist of reports which are made to assure quality as per QAP.
    ahmadtppu
    ahmadtppu
    Sir, can you please clarify between Quality Assurance Plan QAP & Quality Control Plan QCP.
    DilipShah
    Hello,
    Mr. Dnyan Deshmukh can you share me your email add please?
    Thanks for your support.
    Dilip Shah VP,
    NRD INDUSTRIES. USA
    WhatApp, GoogleDuo, Hangout, Viber 001-848-391-1248 |
    nrdindustries@gmail.com

    Dnyan Deshmukh
    Dnyan Deshmukh
    Hello Sir, i had started conversation with you at here, you will get notification of same in your inbox at here.
    C
    If available ,please provide excel sheet for structural designing of Retaining wall and its base specially one side filled up with water / earth .
    C
    Good Morning ,
    Is their any provision in IS for welding for TMT Bar ? need some supporting document for welding of Reinforcement is allowed or not . Pls send.
    Dnyan Deshmukh
    Dnyan Deshmukh
    Yes, there is specification for welding of reinforcement bars, refer para / clause 12.4 in IS 456.

    The method and specifications are given in IS 9417 and in IS 2751.

    In your case refer IS 9417.

    Additionally you can take the procedure for same from your Structural Consultant.
    C
    chakrabortydotcom
    Thanks for responding ,Some of structural consultants are not allowing welding in Reinforcement steel . Any specific provision is there for that ?
    ganesh.n
    ganesh.n
    Dear sir,
    Kindly share baseline schedule tracking templates , man power productivity and equipment productivity chart used for construction.
    radhe kumar
    One more thing noticed that, cube having more weight gaining less strength.
    Plz suggest.
    radhe kumar
    radhe kumar
    Sir
    One more thing noticed that, cube having more weight gaining less strength.
    Plz suggest.
    Dnyan Deshmukh
    Dnyan Deshmukh
    It may not be a true i had seen results with high and low side with higher weights.
    KIRAN1984
    SIR
    how to design m40,m50 for concrete paver blocks in hydraulic plants using 6mm and dust
    kranjan
    kranjan
    As it is semi wet state, preferred trial at factory with actual mould and machine cast. Ingredients are Cement, Fly ash(Optional), Crusher sand, 6MM aggregate(Optional), water, admixture and on top colour pigment (If required). We cannot surely tell the mix batch weight, unless ingredients properties known to us. The texture, shape, demoulding time, abrasion resistance need to be ensured.
    R
    Dear Sir
    Nice to know Civil4m and its members etc., all
    by the way
    I do have an great idea
    if you say as my interest and my earnings are ensured and protected i can share with you
    i also will work hard to make to realize my idea to come alive
    i should not be cheated
    please send a test email to rames.psg@gmail.com
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