Answer / amaregouda

To avoid the formation of micro cracks in construction joint and as well as to provide a proper bond between old and new surfaces.Usage of bonding chemicals is advised like nitto bond.

Answer / piyush singh

Loose Concrete and Laitance is removed from the old surface of the concrete and in some cases Chemicals are also used such as Fosroc Nitobond Ep and others , so that a proper bond exists between the old and new concrete and any micro pores does not remains in the concrete which may lead to the leakage

all technical question

0 Answers   L&T,

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How much of the strength of concrete comes from post- production curing?

0 Answers   EE Limited, Focus, Lafarge,

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How to check the quality of cement?

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what is mean by k150

2 Answers   Kuwait Oil Company,

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4 Answers  

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first wt is reqd. for making a mix design of concrete & the procedure of determining the qty. of material used in concrete.

1 Answers   BirlaSoft,

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can we use .5 water-cement ratio for any type of cement?

7 Answers  

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What is minimum tensile strength required for structural steel works ?

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what is the amount of absorption of slurry in shuttering ply board. what is the amount of slurry leakage allowed for 1 m3 of concrete.

0 Answers   L&T,

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Required concret Surface Temperature prior to coating of epoxy pain with references ASTM or ACI whatever

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what is the yield strength of M30 grade of concrete

2 Answers  

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