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

undisturb samples are obtained by direct excavation thin walled sampler thick walled sampler none of this

1 Answers  

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How much qty of stone ; sand; cement in R/R stone masonry of 136 CUM

0 Answers  

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What is proportion of M25,M30,M35,M40 IN TH FORM 1,2,3,4?

12 Answers   L&T,

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tell me quantitys of matal, sand and cement in 1:4:8 and 1:2:4

9 Answers   AVL, Infosys, NCC, SPCL, Swapnapurti Developers,

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225 mm thick RCC slab, how many ton load slab can carry? for example if 33 ton truck loaded with soil, truck having 6 wheels. slab can take load or not? grade of concrete is M35 and slab design Fe500, slab desing one way slab.

0 Answers  

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what is tension & compression of steel bending.

0 Answers   L&T,

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Types of Water Proofing Material?

2 Answers  

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what is the difference between the splice & Lap length.

2 Answers  

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Pls provide me with the calculation or codes related to de- shuttering of flat slabs

2 Answers  

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What is code for designing a sheet pile?

2 Answers  

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ratio of sand, cement and metal in all concrete mix

2 Answers  

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Difference between Statics, Dynamics, Kinetics, Kinematics

5 Answers   Cinda,

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