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

Fingerprint

Mortar
Polyurethanes
Foams
Curing
3D printers
Construction industry
Rigidity
Repair

Cite this

Cementitious mortars and polyurethane foams for additive building manufacturing. / Dams, Barrie; Peng, Jianan; Shepherd, Paul; Ball, Richard.

2018. 103-107.

Research output: Contribution to conferencePaper

@conference{559f4d00bf144eb2a418828749b7731d,
title = "Cementitious mortars and polyurethane foams for additive building manufacturing",
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.",
author = "Barrie Dams and Jianan Peng and Paul Shepherd and Richard Ball",
year = "2018",
month = "4",
day = "9",
language = "English",
pages = "103--107",

}

TY - CONF

T1 - Cementitious mortars and polyurethane foams for additive building manufacturing

AU - Dams, Barrie

AU - Peng, Jianan

AU - Shepherd, Paul

AU - Ball, Richard

PY - 2018/4/9

Y1 - 2018/4/9

N2 - 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.

AB - 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.

M3 - Paper

SP - 103

EP - 107

ER -