Dnyan Deshmukh

Dnyan Deshmukh

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  • lokeshwaran
    Hello sir,
    Please clarify the below doubts
    1. Is that advisable to cast 2 diff mix design of concrete of same grade such as diff cem,diff agg,diff admix 4 same structure @ same time.
    2. Is that advisable to cast 2 diff grades of concrete for beam&slab separately but monolithically
    3.Wat r d plastering norms such as thickness&ratio for every locations i.e., External brick wall, inner wall, ceiling etc
    Dnyan Deshmukh
    Dnyan Deshmukh
    1. Not advisable but in unavoidable condition pouring can be done in such a way that, identification of two concretes is possible in structure. this is required just in case when there is a failure observation in concrete cube compressive strength.

    2. Yes you can do that, first do cast beams and let the concrete of beam overflow into the slab and then cast the slab with concrete of slab grade.
    Dnyan Deshmukh
    Dnyan Deshmukh
    3.
    ceiling - normally we should not do a plaster to ceiling but to makeup the undulation skin coat of up to 6mm is done to ceiling. higher thickness has chance of debonding and falling of the plaster.
    Walls - on internal face 12 to 15 mm and on external face too the range could be same or as per the condition at your site.
    Ganib11
    Hello sir. I am Looking for a civil site engineer job in Bangalore.I have 7 months of experience in construction.
    Krishna22
    what is the maximum height of 230mm fly ash brick wall without lintel??
    1.Per day is 1m height we are constructed but maximum height of the wall(230mm). In half brick work we have put Reinforcement in every 4 layer or 1m lintel bend provided.
    2. 230 mm brick wall height my site -3650mm & 4050mm its ok with out lintel/bend ?
    tausif khan
    tausif khan
    The maximum height for 230mm thick brick wall without lintel is 2.76m.
    tausif khan
    tausif khan
    No you should provide lintel at 2.76 m .
    Pushpendra singh chouhan
    Hi Deshmukh G , Very good morning

    I am facing the one little problem in the calculation , curing compound efficiency testing according to BS 7542:1992 given the formula in clause No 8 for efficiency , they are not simplify of Ec . I have searched lots of reference but cannt if you have any reference or idea please share to me . we are performing the test & taking Ec=Wc .
    • Like
    Reactions: Vinodh29
    Dnyan Deshmukh
    Dnyan Deshmukh
    Ec = Curing Compound Efficiency which is
    The efficiency of the curing compound in forming a membrane which reduces moisture loss is calculated from the measured loss in mass of the specimens, after correction for the loss of solvent from the coated specimen.
    Dnyan Deshmukh
    Dnyan Deshmukh
    I do not have any idea about efficiency index formula as i never used it for calculating, but when you are making index by comparing efficiency with controlled sample, your index value will be 1.00+ or 100% + (your curing compound sample will always have less water evaporation than controlled sample)
    Pushpendra singh chouhan
    Pushpendra singh chouhan
    thanks for quick response..........ok
    kranjan
    Can you please suggest concrete mix that can act as slurry cum concrete of grade M40, as we wanted to avoid cost incurred due to slurry which is waste once concrete flow in and it will also save time majorly
    View previous comments…
    Dnyan Deshmukh
    Dnyan Deshmukh
    you need to lubricate pipeline before start of the concrete so you can either use a slurry or ready made lubricant available in market which are also cheaper than producing slurry. Cost incurred due to slurry will be always negligible when comparing to make a concrete like slurry (SSC - self compacting)
    Mech42
    Mech42
    Can use
    Concrete Pump Slurry Pouch
    www.indiamart.com

    Concrete Pump Slurry Pouch

    Jignesh Industries - Offering Concrete Pump Slurry Pouch, For Construction, Packaging Size: 200 Grms at Rs 80/pouch in Ahmedabad, Gujarat. Read about company. Get contact details and address | ID: 19994833973
    www.indiamart.com

    Its cost Effective compare to Cement Slurry
    kranjan
    kranjan
    whether this can be left in as part of concrete, as disposal of such lubricant is one more issue
    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.
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