Welcome to the LecCalc App.
Leca® is a unique lightweight aggregate with versatile applications, the only "all in one" aggregate with sustainable use "everywhere". Thanks to its unique characteristics, expanded clay has broad range of applications "everywhere", like in the housing, infrastructure and green projects.
This App is for illustrating how Leca® can contribute to detain and delay water runoff when used in water management systems. Different fraction and sizes of Leca® can be chosen to optimize various effects and to achieve different results. This App means to indicate the trends of the behaviour of water in Leca® during and after rainfalls.