Cement-Bonded Sub-Base Layers of Walkable and Running Structures for Rainwater Management

conference paper

English

Sub-base layers of walkable and running road structures usually consist of a stable subsoil with sufficient load-bearing capacity under the surface layer itself in the form of concrete covers or prefabricated paving elements. Due to their load-bearing capacity, these sub-base layers are most often constructed using cement-bonded aggregate technology. The current hot topic of rainwater management brings opportunities for the construction of water-permeable structures with good water retention capacity. The retention capacity of such a structure can be ensured in ideal conditions by making this sub-base partially permeable and with an absorbent layer while maintaining its mechanical advantages. The experiment confirmed the possibility of producing cement-bonded sub-base layers using light porous aggregates based on expanded clays. The high absorption rate of the type of aggregate used is a good starting point for increasing the retention capacity of the entire system.

cement-bonded aggregate mixture (SC), pervious concrete, water management, dense aggregate, lightweight aggregate, expanded clay aggregate

ŤAŽKÝ, M.; HELA, R.; HUBERTOVÁ, M.

11. 10. 2021

TransTech Publication

Switzerland

978-3-0357-1870-6

Binders, Materials and Technologies in Modern Construction VII

1662-9779

Solid State Phenomena

325

Swiss Confederation

150

155

6