Pitchstone Fines: A New Inorganic Binder For Portland Cement-Based Construction Products

Vessalas, K; Ray, AS; Thomas, P; Joyce, PA; Haggman, J

Pitchstone Fines: A New Inorganic Binder For Portland Cement-Based Construction Products

Vessalas, K

Ray, AS Thomas, P

Joyce, PA Haggman, J

Permalink

Publisher:: Aalborg University
Publication Type:: Conference Proceeding
Citation:: Proceedings of the 12th International Inorganic-Bonded Fiber Composites Conference, 2010, pp. 39 - 47
Issue Date:: 2010-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download full textAdobe PDF (5.39 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Vessalas, K https://orcid.org/0000-0003-3948-5212	en_US
dc.contributor.author	Ray, AS	en_US
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121	en_US
dc.contributor.author	Joyce, PA	en_US
dc.contributor.author	Haggman, J	en_US
dc.contributor.editor	Sorensen, EV	en_US
dc.contributor.editor	Thygesen, HM	en_US
dc.date	2010-09-21	en_US
dc.date.issued	2010-01	en_US
dc.identifier.citation	Proceedings of the 12th International Inorganic-Bonded Fiber Composites Conference, 2010, pp. 39 - 47	en_US
dc.identifier.isbn	87-91606-20-9	en_US
dc.identifier.uri	http://hdl.handle.net/10453/16373
dc.description.abstract	The findings of this investigation into the performance pitchstone fines (PF) sourced from a naturally occurring pitchstone deposit in Queensland Australia as a potential pozzolanic supplementary cementitious material (SCM) are reported. 50 mm mortar cubes were prepared by replacement of 20% of the Portland cement (PC) with PF and PF blended with silica fume (SF) in a 1:1 ratio. Mortar cubes were also prepared with a 20% PC substitution level using fly ash (FA) and FA blended with SF also in a 1:1 ratio for comparison as the SCM. Control mortar cubes without PC substitution were also prepared. The compressive strength results for PF blended mortars were comparable to FA mortars, were within 75% of the control mortar at 7 and 28 days and approached the strength of the control mortar at 91 days curing. PF and FA blends containing SF produced compressive strength which surpassed the control mortar. Drying shrinkage measurements are also reported for up to 28 days storage in air. The PF mortar was found to have comparable shrinkage to the control mortar; the shrinkage of the FA mortar was found to be significantly greater. The differences were attributed to the particle shape, angularity and size resulting in greater capillary forces in the FA mortars resulting in greater shrinkage.	en_US
dc.publisher	Aalborg University	en_US
dc.relation.ispartof	Proceedings of the 12th International Inorganic-Bonded Fiber Composites Conference	en_US
dc.relation.ispartof	International Inorganic-Bonded Fiber Composites Conference	en_US
dc.title	Pitchstone Fines: A New Inorganic Binder For Portland Cement-Based Construction Products	en_US
dc.type	Conference Proceeding
utslib.location	Denmark	en_US
utslib.location.activity	Aalborg, Denmark	en_US
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Aalborg, Denmark	en_US
dc.location.activity	The Netherlands
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	Denmark	en_US
pubs.start-date	2010-09-21	en_US

Abstract:

The findings of this investigation into the performance pitchstone fines (PF) sourced from a naturally occurring pitchstone deposit in Queensland Australia as a potential pozzolanic supplementary cementitious material (SCM) are reported. 50 mm mortar cubes were prepared by replacement of 20% of the Portland cement (PC) with PF and PF blended with silica fume (SF) in a 1:1 ratio. Mortar cubes were also prepared with a 20% PC substitution level using fly ash (FA) and FA blended with SF also in a 1:1 ratio for comparison as the SCM. Control mortar cubes without PC substitution were also prepared. The compressive strength results for PF blended mortars were comparable to FA mortars, were within 75% of the control mortar at 7 and 28 days and approached the strength of the control mortar at 91 days curing. PF and FA blends containing SF produced compressive strength which surpassed the control mortar. Drying shrinkage measurements are also reported for up to 28 days storage in air. The PF mortar was found to have comparable shrinkage to the control mortar; the shrinkage of the FA mortar was found to be significantly greater. The differences were attributed to the particle shape, angularity and size resulting in greater capillary forces in the FA mortars resulting in greater shrinkage.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/16373