Cementitious mortars and polyurethane foams for additive building manufacturing

Research output: Contribution to conferencePaperpeer-review

1276 Downloads (Pure)

Abstract

The use of additive manufacturing in the construction industry is still in a state of infancy. Research into suitable materials for Additive Building Manufacturing ABM) have centred upon polymeric and cementitious materials, with the trade-off between workability and buildability central to material development. This study is investigating both CEM1 based mortars and polyurethane foam to evaluate suitability for use in the construction and repair of buildings. High density polyurethane foam possesses sufficient strength and density to be a viable structural material; however, the fresh properties of the material following mixing of components present a challenge as the material exhibits lateral expansion and excessive deformation prior to curing. Microparticles were added to high density foam to investigate the provision of rigidity during curing, however the particles promoted the foaming reaction, reducing density, strength and structural viability. Mortar mixes under investigation placed the emphasis upon workability and minimisation of constituent segregation, while mindful of the material still needing to possess sufficient buildability in order to prevent excessive deformation of extruded layers while deposited material remains in a fresh state.
Original languageEnglish
Pages103-107
Number of pages5
Publication statusPublished - 9 Apr 2018
EventYoung Researchers’ Forum IV - Northumbria University, Faculty of Engineering and Environment, Newcastle, UK United Kingdom
Duration: 9 Apr 20189 Apr 2018
https://www.academia.edu/79286145/Cementitious_mortars_and_polyurethane_foams_for_additive_building_manufacturing

Workshop

WorkshopYoung Researchers’ Forum IV
Country/TerritoryUK United Kingdom
CityNewcastle
Period9/04/189/04/18
Internet address

Fingerprint

Dive into the research topics of 'Cementitious mortars and polyurethane foams for additive building manufacturing'. Together they form a unique fingerprint.

Cite this