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Initial Setting Time Of Ordinary Portland Cement Should Not Be Less Than

The initial setting time of ordinary cement should not be earlier than 45 min and final setting time should not be later than 10 h The screenings left on the squarehole sieve of 008 mm should not exceed 10 And boiling stability must be qualified The ignition loss of cement should be less than 50

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Introduction of initial setting time of ordinary portland cement should not be less than
  • Setting time of ordinary Portland cement Laboratory
    Setting time of ordinary Portland cement Laboratory

    So lets move the laboratory procedure of Setting time of ordinary Portland cement The exhaustive tests are carried out in the laboratory to decide precisely the quality of cement Extreme care should be taken to collect a sample of cement In order to make a representative sample this is desirable to collect in nearly equal to portions

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  • Question is The initial setting time for ordinary
    Question is The initial setting time for ordinary

    Question is The initial setting time for ordinary Portland cement as per IS specifications should not be less than Options are A 10 minutes B 30 minutes C 60 minutes D 600 minutes E Leave your comments or Download question paper

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  • Initial and Final Setting Time of Cement Civil
    Initial and Final Setting Time of Cement Civil

    The time elapsed between the moments when water is added to the cement to the time when the square needle penetrates a depth of 33 to 35 mm from the top of the mould is known as the Initial Setting Time of that cement The initial Setting Time should not be less than 30 minutes for Ordinary Portland Cement

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  • White Cement White Portland Cement Ordinary Portland
    White Cement White Portland Cement Ordinary Portland

    Method 1 After sieving the cement on IS test Sieve No9 BS Sieve No 170 should not exceed 10 in case of Ordinary Portland Cement Method 2 Specific surface by Air Permeability Method should not be less than 2150 sq cm kg in case of Ordinary Portland Cement

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  • Ordinary Portland Cement an overview ScienceDirect Topics
    Ordinary Portland Cement an overview ScienceDirect Topics

    The initial setting time of ordinary cement should not be earlier than 45 min and final setting time should not be later than 10 h The screenings left on the squarehole sieve of 008 mm should not exceed 10 And boiling stability must be qualified The ignition loss of cement should be less than 50

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  • Different kinds of cement as per IS code Building
    Different kinds of cement as per IS code Building

    Oct 07 2017 Ultimate strength of this cement is more than that of ordinary Portland cement but initial and final setting times are the same Compressive strength of 13 Mix cubes made with this cement and standard sand is After 1682 hours Not less than 220 kgcm 2 After 6724 hours Not less than 310 kgcm 2 For details refer to IS 14891976

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  • Ordinary Portland Cement an overview ScienceDirect
    Ordinary Portland Cement an overview ScienceDirect

    The initial setting time of ordinary cement should not be earlier than 45 min and final setting time should not be later than 10 h The screenings left on the squarehole sieve of 008 mm should not exceed 10 And boiling stability must be qualified The ignition loss of cement should be less than

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  • 300 TOP BUILDING MATERIALS and CONSTRUCTION
    300 TOP BUILDING MATERIALS and CONSTRUCTION

    69 The initial setting time for ordinary Portland cement as per IS specifications should not be less than a 10 minutes b 30 minutes c 60 minutes d 600 minutes Ans b 70 As per IS specifications the maximum final setting time for ordinary Portland cement should be a 30 minutes b 1 hour c 6 hours d 10 hours Ans d 71

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  • Building Materials MCQ Questions Answers Civil
    Building Materials MCQ Questions Answers Civil

    The initial setting time for ordinary Portland cement as per IS specifications should not be less than A 10 minutes B 30 minutes C 60 minutes the compressive strength of ordinary Portland cement after three days should not be less than A 7 MPa B 115 MPa C 16 MPa D 21 MPa Answer Solution Discuss in Board Save for Later 40

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  • Setting of Cement Initial and Final Setting Time of Cement
    Setting of Cement Initial and Final Setting Time of Cement

    Setting Time of Cement Some types of cement set quickly within a few minutes whereas others may take comparatively longer time However the initial setting time of cement is 30 minutes for ordinary portland cement And the final setting time of cement is 600 minutes or 10 hours on average for ordinary portland cement

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  • The initial setting time for ordinary Portland cement as
    The initial setting time for ordinary Portland cement as

    The initial setting time for ordinary Portland cement as per IS specifications should not be less than The initial setting time for ordinary Portland cement as per IS specifications should not be less than A 10 minutes B 30 minutes C 60 minutes D 600 minutes

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  • Q1 Consider the following statements High alumina
    Q1 Consider the following statements High alumina

    Q14 As per specifications the initial setting time of ordinary Portland cement should not be less than a 10 minutes b 20 minutes c 30 minutes d 60 minutes Q15 In cements generally the increase in strength during a period of 14 days to 28 days is primarily due to a C 3 A b C 2 S c C 3 S d C 4 AF Q16 Consider the following type

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  • 82 Setting Time of Cement 821 Introduction 822
    82 Setting Time of Cement 821 Introduction 822

    Note 1 For ordinary Portland cement the initial time of setting is not less than 45 minutes and the final time of setting is not more than 375 minutes by Vicat test Note 2 It should be noted that the setting times will be reduced as the temperature of the paste increases and the temperature of the test should be maintained at 30 20C to give consistent results To prevent

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  • INITIAL FINAL SETTING TIME IS4031Part 51988
    INITIAL FINAL SETTING TIME IS4031Part 51988

    May 04 2013 Initial setting timet 2t 1 Final setting timet 3t 1 Where t 1 Time at which water is first added to cement t 2 Time when needle fails to penetrate 5 mm to 7 mm from bottom of the mould t 3 Time when the needle makes an impression but the attachment fails to do so Precautions Release the initial and final setting time needles gently

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  • FinenessSoundnessInitial and final setting timeSetting
    FinenessSoundnessInitial and final setting timeSetting

    The stage of setting of cement at which any crack that only appears does not reunite is called initial setting The period from which the water is added till initial setting takes place is called initial setting time For ordinary Portland cement it is not less than 30 minutes

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  • What is the initial and final setting time for concrete
    What is the initial and final setting time for concrete

    initial setting time it is the interval between the moment water is added to the cement to the time paste starts losing its plasticity for opc it should not be less than 30 minutes final setting time the time taken to reach the stage when the paste becomes a hard mass and can sustain some minor load is known as the final setting time it should not be more than 10 hours for opc

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  • Quiz Building Materials Flashcards Quizlet
    Quiz Building Materials Flashcards Quizlet

    The initial setting time for ordinary Portland cement as per IS specifications should not be less than 30 minutes The normal consistency of ordinary Portland cement is about

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  • What is White Portland Cement Use and properties
    What is White Portland Cement Use and properties

    Mar 31 2020 ASTM specification for white cement could be read as follows cement should be white Portland cement confirming as per standard specification ASTM C150 white cement is more expansive and costly than ordinary Portland cement because of changes in the manufacturing process and the material used

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  • Important Questions of BMC Civil4M
    Important Questions of BMC Civil4M

    Jan 09 2018 As per specifications the initial setting time of ordinary Portland cement should not be less than a 10 minutes b 20 minutes c 30 minutes d 60 minutes cements generally the increase in strength during a period of 14 days to 28 days is primarily due to a C3A bC2S c C3S dC4AF 20 What is the requirement of water expressed as of cement ww for the completion of chemical reactions

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  • Initial and Final Setting time of Cement Effects How
    Initial and Final Setting time of Cement Effects How

    Oct 06 2017 For Ordinary Portland Cement The initial Setting Time is 30 minutes Final setting time of CementThe time at which cement completely loses its plasticity and became hard is a final setting time of cement Or The time taken by cement to gain its entire strength is a Final setting time of cement

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  • The determination of setting time of portland cement by
    The determination of setting time of portland cement by

    This limitation of the Vicat test is relevant to the special case of quick setting cements whereas for normal cements the Vicat test should be considered satisfactory for all practical purposes References 1 BS 12 1978 Ordinary and RapidHardening Portland Cement C15081 Portland Cement 1982 Annual Book o

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