Waterproofing

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Types and Durability

Description

(Floor Waterproofing)

 Expected Lifespan

(Years)

 Adjustment Factors
Liquid applied system

Liquid (cold/ hot) applied with base material to CP 82: 1999, with method of fixing includes by means of squeegee, roller, brush, trowel or spray, in accordance to manufacturer instruction. Hot applied to ASTM D 6622: 2001 and cold applied to C 898: 2001.

  • Bituminous
  • Non Bituminous: acrylic, cementitious, epoxy resin, hypalon, neoprene, polyurethane, polysulphide, rubber and silicone
 10 Constantly immersed in water or exposed to extreme moisture: – 15% years,

In contact with soil/ ground: -10% years,

Partially immersed in water: -5% years.

Test certificate from approved local authority: +15%
Liquid (cold/ hot) applied with base material not in accordance to CP 82: 1999, with method of fixing includes by means of squeegee, roller, brush, trowel or spray, in accordance to manufacturer instruction.

 

 < 10 None
Integral system*

Integral waterproofing system with method of application includes by means of masonry brush or compressed air-spray equipment, or by dry shake or as admixture, in accordance to manufacturer instruction.

  • Crystalline waterproofing
  • Chemical admixture
  • Waterproofing screed
 10+ Constantly immersed in water or exposed to extreme moisture: – 15% years,

In contact with soil/ ground: -10% years,

Partially immersed in water: -5% years.

Test certificate from approved local authority: +15%

[1]

* to ensure the expected lifespan, integral waterproofing has to be considered in the design state, when the concrete material and mix proportion are determined.

In the case of 2 or more condition of adjustment factor occur, the percentage of year shall be added to obtain the durability value.