Fundamental study on porous concrete and applications for planting material

Title: Fundamental study on porous concrete and applications for planting material
Author(s): T. Matsukawa
Paper category : conference
Book title: RILEM International Symposium on Environment-Conscious Materials and Systems for Sustainable Development
Editor(s): N. Kashino and Y. Ohama
Print-ISBN: 2-912143-55-1
e-ISBN: 2912143640
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 287 - 293
Total Pages: 7
Nb references: 3
Language: English

Abstract: Porous concrete (PoC) is made of aggregate, some parts of which are combined together by binder. Contrary to conventional concrete, air and water permeate freely through continuous voids within it. Therefore it is a new type of material which is suitable for various cabin of life, such as bacteria, small animals and plants to live in and grow together. This paper describes the flow characteristic of binder adhering to the surface of aggregate by rheological treatment at the fresh stage. For the purpose of the rational practice of PoC, the relation between the properties of the binder which does not flow down to the bottom and the vibrating method is discussed. As the result, the flow pattern of the binder of PoC generally shows pseudo-plastic (pp) flow having a yield value in a state wherein adhering to the aggregate is possible. In hardened properties of PoC, the relationships of voids properties to the fundamental physical properties of PoC and the growth of plants are obtained. As a result it is clear that this type of concrete is useful in the establishment of well-balanced biological environment as environmentally-friendly planting concrete.

Online publication: 2004-11-24
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143640.034