Site Execution

 WATERPROOFING OF TOILET AREA:- Surface preparation waterproofing work:- • All surface area should be cleaned up to visible hair cracks / aggregate  texture, cleaning of  RCC member should be done by hacking tool, wire  brush, wire grinder & air blower etc. • 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 225 gm. of packet per bag of cement or micro concrete. Waterproofing Treatment:- • Ensure the surface must be damped before application of 2 coat of GS flexi 201 by brush. The first coat shall be applied at the rate 1 kg /m2 with proper brush application ensuring that all surface of the co

  GROUTING PROCEDURE OF RETAINING WALL:-   Construction & Honeycomb Treatment:-        Chasing open the joints in ‘’V’’ shape/ ‘’U’’ shape groove of required width and depth as per site conditions. Chasing open the junction of RCC and the masonry surfaces, sealing the groove with repair mortar C:M with Conplast WL equivalent @ 150 ml per bag of cement etc.    The minimum dosage is 125ml and the maximum is 200ml per 50kgs of cement. If maximum dosage is used a minimum of 15% water should be reduced to ensure no loss in strength. The required quantity of Conplast WL is measured and stir into the first or second bucket of water. Conplast WL water mixture shall be added to the concrete or mortar and mixed thoroughly. Mixing shall be continued and further water shall be added until the required work ability is obtained. Grouting:- Cementious Grout:- ·     Providing and applying neat cement slurry grouting (Cebex 100) including expandable additive as directed by consultant

  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 225         gm.  of packet per bag of cement or micro concrete. ·         Areas to be grouted should be prepared to ensure substrates

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Curing of Concrete Structure: Curing of Concrete Curing may be defined as the process of maintaining satisfactory moisture and temperature conditions for freshly placed concrete for some specified time for proper hardening of concrete. Curing in the early ages of concrete is more important. Curing for 14 days is very important. Better to continue it for 7 to 14 days more. If curing is not done properly, the strength of concrete reduces. Cracks develop due shrinkage. The durability of concrete structure reduces.  The following curing methods are employed:  (a) Spraying of water  (b) Covering the surface with wet gunny bags, straw etc.  (c) Ponding  (d) Steam curing and  (e) Application of curing co (a) Spraying of water:  Walls, columns, plastered surfaces are cured by sprinkling water.  (b) Wet covering the surface:   Columns and other vertical surfaces may be cured by covering the surfaces with wet gunny bags or straw.  (c) Ponding :  The horizontal surfaces like slab and floors are