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Preparation of surface for waterproofing work.

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  HOW TO PREPARE SURFACE FOR WATERPROOFING :-     All surface area should be cleaned well to make visible of hair cracks / aggregate texture and opened the all the joints and construction joints.   Cleaning of RCC member should be done by hacking tool, wire brush, wire grinder & air blower etc. Make sure all kind of dust particles, oil & grease should be removed properly  ·          All visible cracks & construction joints should be sealed with cement mortar with additive Conplast  WL after making V groove.             All clean & treated area should test for water tightness by flooding water for minimum 75 mm head for 48 hours.     All wet spots, water leak & honeycomb areas should be mark for treatment. It shall be treated with        injection grouting with Cebex 100 as additive to be added in grout cement slurry @ dosage of ...
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Ultrasonic Pulse Velocity Testing

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Ultrasonic Pulse Velocity Testing is non destructive technique which is used to check the quality of Concrete, In this method of testing we identify internal cracks, voids, strength and compaction quality of the concrete structure.  In this method we find out the velocity of pulse inside the concrete.   The higher velocity shows the good quality and lower velocity shows the bad quality of Concrete.     Velocity can be calculated by formula:-  (V)  =   Distance b/w trns. & rcvr. (L)    /                     Reading of machine or time take                                      by pulse (t) There are three methods of Ultrasonic pulse velocity technique.   1:- Direct Method 2:- Semi Direct Method  3:- Indirect Method 1:- Direct Method:-   This method is m...
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HOW TO PREPARE METHODOLOGY OR METHOD STATEMENT OF CONSTRUCTION WORK

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Here I am going to discuss how to prepare a method statement for construction activities step by step: Content :- In this with we write the content which included in the document serial wise. PURPOSE SCOPE RESPONSIBILITY CONTROLLING SPECIFICATION MATERIAL TOOLS & TACKLES PROCEDURE INSPECTION DOCUMENTATION 1. PURPOSE:- In this we write the purpose of the procedure which includes all activities. 2. SCOPE:- In this we write about the scope of the work, which includes activity name and name of part of construction work. 3. RESPONSIBILITY:- We include the persons who are responsible for the the activity such as project manager, engineer, supervisor. 4. CONTROLLING  SPECIFICATION:- In section we include which standards and specification are used for the activity. 5. MATERIAL:- In this we include the the all kind of materials used for the work with name of material and brand. 6. TOOLS & TACKLES:- In this we include name of the tools and tackles used for the work ...
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