Thursday, November 30, 2017

Innovative sustainable materials. Grp 23

Innovative sustainable materials
innovative sustainable materials
  • Straw bales
  • Timbercrete
  • Ashcrete
  • Ferrock

  • Mycelium

  • Wood
  • Recycled plastics



More than ever, the construction industry is concerned with improving the social, economic and environmental indicators of sustainability. By applying LCA it is possible to optimise these aspects, from the extraction of raw materials to the final disposal of waste building materials.

Sustainability, industrial ecology, eco-efficiency, and green chemistry are guiding the development of the next generation of materials, products, and processes. Biodegradable plastics and bio-based polymer products based on annually renewable agricultural and biomass feedstock can form the basis for a portfolio of sustainable, eco-efficient products that can compete and capture markets currently dominated by products based exclusively on petroleum feedstock. Natural/Biofiber composites (Bio-Composites) are emerging as a viable alternative to glass fiber reinforced composites especially in automotive and building product applications.



An innovative, cement-free SRF binder was used to produce eco-friendly mortar.
 The maximum compressive strength value of the cement-free mortars was 40 MPa.
The mortars showed progressively better compressive strength values after 120 days.
Producing cementless mortar that delivers good, long-term durability is feasible.
The mortars produced using the SRF binder exhibited good sulfate resistance.

 Inadequate understanding of the interactions and cumulative impacts of the various sub-level sustainability indicators further compound the difficulty in sustainability appraisal of designs. Thus although there is increasing realisation of the need to design and construct for sustainability, the real challenge is on achieving these objectives at the micro level. Therefore, the first prerequisite to addressing sustainability in developing countries is to develop indicators through effective stakeholder participation.


Sustainable innovation issue:

  • How to compare soil as bioreactor with traditional techniques:
       a) dig up, excavate contamination and               fill up with sand
       b) ground topsoil and then sand or                     other materials

  •  For local and national policy makers sustainable means: to do it quick and with low cost
  •  In reviewing (approach and tender) used tech-niques are leading, no experiments, budget period
  •  Government regulations explicitly forbid more sustainable solutions; legislation of 15 years ago.

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