The characteristics of Porous Concrete, especially the four main characteristics “permeability”, “water retention,” “sound-absorption” and “design” create comfortable living environments solving familiar and serious problems of urban living
High water retention to prevent heat island phenomenon in urban areas (thermal alleviation).
With a 30% airspace gap, porous concrete’s structure can be both permeable and retentive. In addition, even during sudden heavy rain, it’s water retention capabilities prevent rainwater concentrating making it possible to prevent areas downstream flooding.
Due to its high water retention, surface temperatures of roads and buildings can be reduced to prevent heat island phenomenon.
In urban areas during the summer, heat island phenomenon in which the temperature is higher than the surrounding area has become a serious contemporary environmental problem.
Radiation from buildings and condominium concrete walls and heat dissipation from asphalt are thought to be the causes of sudden and prolonged heavy rain.
The heat island phenomenon brings greater rainfall exceeding drainage capacities of city sewerage systems. As a countermeasure the high water retention properties of porous concrete will demonstrate its effectiveness.
Thermal Alleviation Properties of the Multi-layer Porous Concrete
Temperature increase prevention function of porous concrete
Porous concrete, along with its internal breathability function, because of its high water retention properties, has a preventive effect of temperature increases due to solar radiation in summer. It helps with urban heat island phenomenon prevention.
Outdoor Surface Temperature Measurement Results
Porous concrete shows only small temperature increases and temperatures after sunset decrease rapidly.
Surface temperature comparison
Surface, inside and bottom face temperature change measurements of over a 24-hour period.