Waterproofing treatment of wet areas (sunken/ toilet/ kitchen/ balcony)



A: TAPECRETE P-151 SYSTEM

  • Cleaning the concerned RCC surface by means of wire brush to expose the concrete surface which should be free from all loose particles, dust, laitance, etc.
  • Making 25 x 25mm size corner fillets with Polymer modified cementitious (PMC) mortar (Tapecrete P-151: Cement: Silica Sand/ Fine sand = 1: 2: 4-6 by weight) at all joints of horizontal and vertical surface and doing bore packing with PMC mortar.  Also the joints of pipes and concrete/masonry are to be sealed with epoxy putty CICO Poxy LC or epoxy mortar CICO Poxy 2125 and the same is semi-rounded upto 5mm above surface level all along the periphery of PVC pipes.
  • Application of one coat of Tapecrete P-151– Acrylic Polymer Modified Cementitious slurry (Tapecrete P-151: Cement = 1: 2 by weight) coating over the RCC slab surface and carried upto 300 mm above finished floor level on vertical portion (walls). This coat is allowed to get dry for 4-6 hours.
  • Application of one coat of Tapecretebrush topping 1-1.5mm thick (Tapecrete P-151: Cement: Silica Sand = 1: 2: 2 by weight) over the first coat.
  • Moist curing of Tapecrete system for next two days.
  • Laying 15 mm plaster in the ratio 1: 4 (Cement: Sand) admixed with CICO Super @ 100ml per 50 kg cement ontreated horizontal surface and carried upto treatment on vertical portion (walls).
  • Water curing of plaster as per good engineering practices.

B: TAPECRETE RTU SYSTEM

  • Cleaning the concerned RCC surface by means of wire brush to expose the concrete surface which should be free from all loose particles, dust, laitance, etc.
  • Dampening the concerned surface with water to get saturated surface dry (SSD) condition before the application of Tapecrete RTU.
  • Making 25 x 25mm size corner fillets with stiff paste of Tapecrete RTU(by using 10% less of Pack A)at all joints of horizontal and vertical surface and also doing bore packing with the same.  The joints of pipes and concrete/masonry are to be sealed with epoxy putty CICO Poxy LC or epoxy mortar CICO Poxy 2125 and the same is semi-rounded upto 5mm above surface level all along the periphery of PVC pipes.
  • Application of first coat of Tapecrete RTU (Two Pack Polymer Modified Elastomeric Cementitious Waterproof Coating) over the RCC slab surface and carried upto 300 mm above finished floor level on vertical portion (walls). This coat is allowed to get dry for 4-6 hours.
  • Application of second & final coat of Tapecrete RTUover the first coat in the similar manner. Minimum consumption of 2 kgsTapecrete RTU per sq.m. should be maintained in two coats.
  • Moist curing of Tapecrete RTU system for next two days.
  • Laying 15 mm plaster in the ratio 1: 4 (Cement: Sand) admixed with CICO Super @ 100ml per 50 kg cement ontreated horizontal surface and carried upto treatment on vertical portion (walls).
  • Water curing of plaster as per good engineering practices.