What is BS 4315-2 - Permeable walling constructions about?
BS 4315-2 is the second part of the multiple series that specifies methods of test for measuring the resistance to water penetration of permeable walling constructions without open joints under static air pressure. The methods are applicable to constructions that can be built-in or fixed into a rigid steel frame by means of which the wall panel can be transported and secured to the pressure-box test equipment. The first method is also applicable to walling constructions, not built into a steel frame, provided an air-tight seal can be made between the pressure box and the front face of the panel.
Note: Test methods are not recommended for comparing the relative merits of walls constructed with materials having different absorption capacities.
Who is BS 4315-2 - Permeable walling constructions for?
BS 4315-2 on permeable walling constructions is useful for:
- Construction industries
- Civil engineers
- Architects
- Testers of permeable walling constructions
- Manufacturers of permeable walling products/types of equipment
Why should you use BS 4315-2 - Permeable walling constructions?
Permeability refers to how much water, air, and other things can pass through the concrete matrix. Concrete pores allow these chemicals to enter and exit.
BS 4315-2 specifies three methods of recording the extent of water penetration are specified, i.e.:
- Method A. Recording, by time-lapse photography, the increase in the area of dampness
- Method B. Recording the change in weight of the specimen
- Method C. Collecting and recording the amount of leakage through the specimen
The methods are applicable to constructions that can be built-in or fixed into a rigid steel frame by means of which the wall panel can be transported and secured to the pressure-box test equipment.
Overall, BS 4315-2 assists you in measuring the resistance to water penetration of permeable walling constructions without open joints.