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

Abstract:

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.

• Periodical: Solid State Phenomena (Volume 325)
• Pages: 150-155
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.325.150
• Online since: October 2021
• Authors: Martin Ťažký*, Rudolf Hela, Michala Hubertová
• Keywords: Cement-Bonded Aggregate Mixture (SC), Dense Aggregate, Expanded Clay Aggregate, Lightweight Aggregate, Pervious Concrete, Water Management

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