Abstract
In recent decades sustainability, carbon footprint and pollution have become significant issues on a global scale. It is widely recognised that the carbon footprint of the construction industry can be reduced which has led to sustainable materials being used more and more widely to meet emissions targets. Two of these materials are hemp concrete and rapeseed-straw concrete which are bio-composites made of a bio-aggregate, water and a lime binder, in this investigation Vicat prompt natural cement (PNC). The addition of a viscosity modifying agent (VMA) is studied for its effect on the mechanical, thermal and transport properties. It was found that the use of a VMA was very effective at countering the two biggest weaknesses of bio-based building materials as it reduced the capillarity absorption of the concrete significantly and also greatly increased the compressive strength and modulus of elasticity of the material.
Original language | English |
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Article number | 117536 |
Number of pages | 13 |
Journal | Construction and Building Materials |
Volume | 235 |
Early online date | 14 Nov 2019 |
DOIs | |
Publication status | Published - 28 Feb 2020 |
Keywords
- Capillarity
- Hemp
- Mechanical properties
- Rapeseed straw
- Viscosity modifying agent
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
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Student Theses
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The Physical Properties, Water Sensitivity and Long Term Durability Performance of Vegetal Concrete
Author: Sheridan, J., Jul 2020Supervisor: Taylor, S. (Supervisor), Sonebi, M. (Supervisor) & Amziane, S. (External person) (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy
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